Agilent Technologies DC Power Analyzer Model N6705 User’s Guide
Legal Notices © Agilent Technologies, Inc. 2007 - 2012 No part of this document may be photocopied, reproduced, or translated to another language without the prior agreement and written consent of Agilent Technologies, Inc. as governed by United States and international copyright laws. Warranty The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions.
Safety Notices The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings or instructions elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer's failure to comply with these requirements. General Do not use this product in any manner not specified by the manufacturer.
In this Book Specific chapters in this manual contain the following information: Quick Reference – Chapter 1 is a quick reference section that helps you quickly become familiar with your DC Power Analyzer. Installation – Chapter 2 describes how to install your DC Power Analyzer. It discusses topics such as how to connect loads to the output, 4-wire sensing, parallel and series connections.
Updates Firmware and Manual Updates This manual describes firmware revision D.01.08 and up. Go to www.agilent.com/find/N6705firmware if you need to download this or any later versions of the firmware. Information on firmware differences is available on the web site. Refer to “View Output Ratings” in chapter 2 to view the firmware version that is currently installed in your mainframe. Refer to “Updating the Firmware” in chapter 5 for information on how to update your mainframe with the latest firmware.
Contents 1 - Quick Reference ..................................................................................................................... 11 The Agilent N6705 DC Power Analyzer – At a Glance ............................... 12 Source Features ......................................................................................... 12 Measurement Features ............................................................................ 13 System Features ...................................................
Connecting the Digital Port ............................................................................. 45 Connecting the Auxiliary Voltage Measurement Input .............................. 46 Connecting to the Interfaces .......................................................................... 47 GPIB/USB Interfaces ................................................................................ 47 LAN Interface .............................................................................................
Scope Ranges........................................................................................... 117 Scope Marker ........................................................................................... 118 Scope Horizontal ...................................................................................... 118 Scope Preset ............................................................................................ 118 Using the Data Logger Functions .............................................
6 - Advanced Source and Measurement Functions...............................................................153 Source Operating Modes ............................................................................... 154 Single Quadrant Operation ..................................................................... 154 Autoranging .............................................................................................. 155 Downprogramming ..................................................................
Agilent N6705 DC Power Analyzer User’s Guide 1 Quick Reference The Agilent N6705 DC Power Analyzer – At a Glance ............................... 12 The Front Panel - At a Glance......................................................................... 16 The Rear Panel – At a Glance ......................................................................... 17 Meter View......................................................................................................... 18 Scope View .....................
1 Quick Reference The Agilent N6705 DC Power Analyzer – At a Glance The Agilent N6705 DC Power Analyzer is a multi-functional power system that combines the functions of a multiple-output DC voltage source with the waveform/data capturing capability of an oscilloscope and data logger. As a multiple-output DC source, the Agilent N6705 provides up to four configurable outputs.
Quick Reference 1 Measurement Features Multiple-output/Singleoutput meter display Switch between a 4-output summary view and a 1-output detailed view of power supply information. All power modules display real-time output voltage and current measurements as well as status information. Scope-like display Voltage and/or current waveforms of all outputs can be simultaneously displayed. Adjustable markers provide calculated measurements.
1 Quick Reference Power Module Features Feature DC Power High-Performance Precision N673xB, N674xB, N677xA N675xA N676xA 50 W output rating N6731B – N6736B N6751A N6761A 100 W output rating N6741B – N6746B N6752A N6762A 300 W output rating N6773A – N6777A N6753A, N6754A N6763A, N6764A N6755A, N6756A N6765A, N6766A Option 761 Option 761 Option 761 Option 760 Option 760 Option 760 ● ● ● ● ● (● = available) 500 W output rating Output disconnect relays Output disconnect/polari
Quick Reference 1 Agilent N678xA Power Module Features Feature Source/Measure Units (SMU) Application-Specific (● = available) N6781A N6782A N6784A N6783A-BAT N6783A-MFG Output rating 20 W 20 W 20 W 24 W 18 W ● ● ● ● 2-quadrant operation 4-quadrant operation ● Auxiliary voltage measurement input ● Output disconnect relays ● ● ● Option 761 Option 761 Arbitrary waveform generation NOTE 1 ● ● ● ● ● Negative voltage protection ● ● ● ● ● Voltage or current priority mod
1 Quick Reference The Front Panel - At a Glance 3 4 5 6 7 9 8 10 2 11 12 1 16 16 15 14 13 1 Line switch Turns the instrument On or Off. 2 Display Displays all instrument functions - information changes based on selected function. 3 Measure keys Selects the measurement function - Meter View, Scope View, or Data Logger. Run/Stop key starts or stops the scope or data log measurement. 4 Source keys Programs the source function – Source Settings or Arbitrary waveform.
Quick Reference 1 The Rear Panel – At a Glance 1 2 8 9 7 3 4 5 6 1 Cover screw Facilitates top and bottom cover removal for power module installation. 2 Digital Port connector Connects to the 8-pin digital port. Port functions are user-configurable. Refer to appendix C for details. 3 USB interface connector Connects to USB interface. May be disabled from front panel menu. Option AKY deletes the connector. 4 LAN interface connector Connects to 10/100 Base-T interface.
1 Quick Reference Meter View Press Meter View This key toggles between multiple and single output views 1 3 2 4 5 Multiple Output View 6 7 8 9 10 Single Output View 1 Output Identifier Identifies the output. When an output is selected, the background becomes highlighted. The selected output is displayed in an enlarged format in single output view.
Quick Reference 1 Scope View Press Scope View This key toggles between standard and marker views. 1 5 2 6 7 3 8 4 9 Standard View 10 11 12 13 Marker View 1 Trace Controls Identifies the voltage or current trace that will be displayed. Dashes (----) indicate that the specified trace is turned off. Select the trace and press Enter to turn it on or off. 2 Output Traces V1, V2, V3, and V4 indicate voltage traces. I1, I2, I3, and I4 indicate current traces. P1 and P2 indicate power traces.
1 Quick Reference Data Logger NOTE Press Data Logger This key toggles between standard and marker views Option 055 deletes the Data Logger function on Model N6705. 1 5 2 6 3 4 7 Standard View 8 9 10 11 Marker View 20 1 Trace Controls Identifies the voltage or current trace that will be displayed. Dashes (----) indicate that the specified trace is turned off. Select the trace and press Enter to turn it on or off. 2 Output Traces Voltage, current, or power traces.
Quick Reference 1 Arb Preview Press Arb This dialog displays the arbitrary waveforms that have been configured. 1 2 5 3 6 7 4 8 9 Arb Preview 1 DC Value This column indicates the present output voltage or current setting that appears at the output before the Arb is run. The output will return to this value after the Arb complete if the Return to DC value box has been checked. If the Last Arb Value box is checked, the output will remain at the last programmed Arb value.
1 Quick Reference Front Panel Menu Reference Menu Heading Description Source Settings ► Voltage and Current Settings… Configures the voltage and current settings, ranges, and emulation modes. Protection… Configures the over-voltage and over-current protection. Enables output coupling so ALL outputs are disabled when a fault occurs. Also clears output protection. Advanced Protection… Enables/disables the output inhibit function. Output On/Off Delays… Configures output on/off delays.
Quick Reference 1 Front Panel Menu Reference (continued) Menu Heading Description Utilities ► Error Log… Lists all error messages. I/O Configuration ► Active LAN Status… Displays the LAN status and active settings. LAN Settings… Configures the LAN interface. GPIB/USB… Configures the GPIB and USB interface. User Preferences ► Front Panel Preferences… Configures screen saver, front panel key functions, and initial meter view. Front panel Lockout… Password-protects the front panel keys.
Agilent N6705 DC Power Analyzer User’s Guide 2 Installation General Information .......................................................................................... 26 Inspecting the Unit ........................................................................................... 27 Installing the Unit.............................................................................................. 28 Connecting the Line Cord ................................................................................
2 Installation General Information Models Agilent Model Description N6705A, N6705B 600 W DC Power Analyzer mainframe - without power modules N6715A, N6715B Build-to-order DC Power Analyzer system - mainframe with installed power modules N6731B / N6741B 50 W / 100 W 5 V DC Power Module N6732B / N6742B 50 W / 100 W 8 V DC Power Module N6733B / N6743B / N6773A 50 W / 100 W / 300 W 20 V DC Power Module N6734B / N6744B / N6774A 50 W / 100 W / 300 W 35 V DC Power Module N6735B / N6745B / N6775A 5
Installation 2 Items Supplied Mainframe Items Description Part Number Power Cord A power cord suitable for your location. Call Agilent Sales & Support Office Digital Connector plug 8-pin connector for connecting signal lines to the digital port. Agilent 1253-6408 Phoenix Contact MC 1,5/8-ST-3,5 AUX Measurement Connector plug (2) 8-pin connector plugs for connecting the auxiliary measurement inputs. Only used with Agilent Model N6781A.
2 Installation Installing the Unit Safety Considerations This DC Power Analyzer is a Safety Class 1 instrument, which means it has a protective earth terminal. That terminal must be connected to earth ground through a power source equipped with a ground receptacle. Refer to the Safety Summary page at the beginning of this guide for general safety information. Before installation or operation, check the DC Power Analyzer and review this guide for safety warnings and instructions.
Installation 2 Power Module Installation NOTE CAUTION The information in this section applies if you have purchased an N6705 mainframe without the power modules installed, or if you are adding a power module to the mainframe. Turn the mainframe off and disconnect the power cord before installing or removing power modules. Observe all standard electrostatic discharge precautions before handling electronic components. Tools required: T10 Torx driver; Small flat-blade screwdriver 5.
2 Installation Step 3. Connect the front panel wire harness. For power modules that use 12 A output connectors – Simply push the 12 A connector plug into the power module. Tighten the locking screws on the connector. For power modules with 20 A output connectors – On N6705B mainframes, remove the 12 A connector plug from the wire harness and install the 20 A connector plug provided with the power module. Observe the output color code. Tighten all connector screws. Install the connector in the module.
Installation 2 Step 4. Finish the Installation. Place any unused cable harnesses in the clip ring located between the power modules and the front panel. Install the top and bottom covers. Push the covers into place and tighten the thumbscrews. High Current Output Connections NOTE CAUTION This information only applies to power modules with output current ratings of 50 A. Do not connect the front panel cable assembly to the high current output power modules.
2 Installation Bench Installation CAUTION Do not block the air intake and exhaust at the sides, or the exhaust at the rear of the unit. Refer to the outline diagram in Appendix A. Minimum clearances for bench operation are 2 inches (51 mm) along the sides and back. For easier display viewing and binding post access, you can tilt the front of the unit up by rotating the extension bar down. Rack Installation CAUTION Use Rack Mount kit (Option 908 or Option 909 with handles) to rack mount the instrument.
Installation 2 Connecting the Line Cord WARNING FIRE HAZARD Use only the power cord that was supplied with your instrument. Using other types of power cords may cause overheating of the power cord, resulting in fire. SHOCK HAZARD The power cord provides a chassis ground through a third conductor. Be certain that your power outlet is of the three-conductor type with the correct pin connected to earth ground. Connect the power cord to the IEC 320 connector on the rear of the unit.
2 Installation Wire Size and Length WARNING FIRE HAZARD Select a wire size large enough to carry short-circuit current without overheating (refer to the table below). To satisfy safety requirements, load wires must be heavy enough not to overheat while carrying the shortcircuit output current of the unit. Agilent Model N678xA SMU wiring requirements are described on the following page. Along with conductor temperature, you must also consider voltage drop when selecting wire sizes.
Installation 2 Agilent N678xA SMU Wiring Requirements Because of the effect of wire inductance, the wire length information given in the previous table does not apply to Agilent Models N678xA SMU. NOTE To minimize the effect of wire inductance, the following table describes the allowable load lead and wire length for several common cable types. Using longer (or shorter) cable lengths than those indicated in the table may cause output oscillation.
2 Installation To minimize inductance, the width (w) of the traces should be at least as great as the thickness of the dielectric (h). It is better to make the traces much wider than this minimum requirement in order to minimize the DC resistance. w h Low Bandwidth Mode with Remote or Local Sensing All previously stated wiring requirements still apply in Low bandwidth mode except for the following.
Installation 2 Multiple Loads If you are connecting multiple loads to one output, connect each load to the output terminals using separate connecting wires as shown. 1. Twist leads 2 2. 4-wire disabled (indicator is off) 1 + + This minimizes mutual coupling effects and takes full advantage of the DC Power Analyzer's low output impedance. Keep each pair of wires as short as possible and twist or bundle them to reduce lead inductance and noise pickup. Keep the load leads under 14.
2 Installation 1. Twist leads 2 3 2. 4-wire disabled (indicator is off) 3. 4-wire enabled (indicator is on) 1 A + B + Connect the load to the output terminals using separate connecting wires. Keep the wire-pair as short as possible and twist or bundle it to reduce lead inductance and noise pickup. Keep the load leads under 14.7 meters (50 feet) per lead because of inductance effects. Connect the sense leads as close to the load as possible.
Installation 2 Open Sense Leads The sense leads are part of the output's feedback path. Connect them so that they do not inadvertently open. The DC Power Analyzer has protection resistors that reduce the effect of open sense leads during 4-wire sensing. If the sense leads open during remote sensing, the output returns to local sensing mode, with the voltage at the output terminals approximately 1% higher than the programmed value.
2 Installation Parallel Connections CAUTION Only connect outputs that have identical voltage and current ratings in parallel. Agilent Models N678xA SMU cannot be connected in parallel. Connecting outputs in parallel provides a greater current capability than can be obtained from a single output. The following figures show how to connect two outputs in parallel. The figure on the left illustrates local sensing.
Installation 2 Series Connections WARNING SHOCK HAZARD Floating voltages must not exceed 240 VDC. No output terminal may be more than 240 VDC from chassis ground. CAUTION Only connect outputs that have identical voltage and current ratings in series. Agilent Models N678xA SMU and N6783A–x cannot be connected in series. To prevent reverse currents from damaging the DC Power Analyzer when the load is connected, always turn series-connected outputs on and off together.
2 Installation To program outputs connected in series, first program the current limit of each output to the total desired current limit point. Then program the voltage of each output so that the sum of both voltages equals the total desired operating voltage. The simplest way to accomplish this is to program each output to one half of the total desired operating voltage. NOTE The operating mode of each output is determined by the output’s programmed settings, operating point, and load condition.
Installation 2 Positive and Negative Voltages Either positive or negative voltages with respect to ground can be obtained from the output by grounding (or "commoning") one of the output terminals. Always use two wires to connect the load to the output regardless of where or how the system is grounded. The instrument can be operated with any output terminal ± 240 VDC including output voltage from ground. NOTE Agilent Models N678xA SMU are optimized for grounding the negative output terminal.
2 Installation Connecting the BNC Connectors The rear panel BNC connectors let you apply trigger signals to the instrument as well as generate trigger signals from the instrument. This also applies to the digital port. Trigger Input - Allows a negative-going external signal to trigger the instrument. The signal must have a minimum pulse width of two microseconds. Trigger input signals are used by the Arb, Scope, and Data Logger functions.
Installation 2 Step 3. Place the ring terminal onto the threaded BNC connector. Make sure that the lock washer (3) is in place before installing the ring terminal. Step 4. Tighten the hex nut onto the ring terminal. Step 5. Attach the other end of the redundant ground wire to a convenient earth ground point. 3 1 2 Connecting the Digital Port NOTE It is good engineering practice to twist and shield all signal wires to and from the digital connectors.
2 Installation Connecting the Auxiliary Voltage Measurement Input NOTE This information applies to Agilent Model N6781A only. The auxiliary voltage measurement input is located on the rear panel of the Agilent N6705B. It is primarily used for battery voltage rundown measurements, but it is also suitable for general purpose DC measurements between ±25 VDC.
Installation 2 Connecting to the Interfaces The DC Power Analyzer supports GPIB, LAN, and USB interfaces. All three interfaces are live at power-on. Connect your interface cable to the appropriate interface connector. Information on configuring the interfaces is found later in this chapter. The front panel IO indicator comes on whenever there is activity on the interfaces. The front panel LAN indicator comes on when the LAN port is connected and configured.
2 Installation To change the GPIB address, use the numeric keys to enter a value in the GPIB address field. Valid addresses are from 0 to 30. Press Enter to enter the value. 6 You can now use Interactive IO within the Connection Expert to communicate with your instrument, or you can program your instrument using the various programming environments. The following steps will help you quickly get started connecting your USB-enabled instrument to the USB (Universal Serial Bus).
Installation 2 LAN Interface NOTE For detailed information about LAN interface connections, refer to the Agilent Technologies USB/LAN/GPIB Interfaces Connectivity Guide, located on the Automation-Ready CD that is shipped with your product. The following steps will help you quickly get started connecting and configuring your instrument on a local area network. The two types of local area networks connections that are discussed in this section are site networks and private networks.
2 Installation 4 You can now use Interactive IO within the Connection Expert to communicate with your instrument, or you can program your instrument using the various programming environments. You can also use the Web browser on your computer to connect to the instrument as described under “Connecting to the Web Server”. Connecting to a Private LAN A private LAN is a network in which LAN-enabled instruments and computers are directly connected, and not connected to a site LAN.
Installation 5 2 You can now use Interactive IO within the Connection Expert to communicate with your instrument, or you can program your instrument using the various programming environments. You can also use the Web browser on your computer to connect to the instrument as described under “Connecting to the Web Server”. Viewing the Active LAN Status To view the currently active LAN settings, press the Menu key, scroll down and select the Utilities, then select I/O Configuration, then Active LAN Status.
2 Installation Get IP Address Automatically With this box checked, the instrument will first try to obtain an IP address from a DHCP server. If a DHCP server is found, the DHCP server will assign an IP address, Subnet Mask, and Default Gateway to the instrument. If a DHCP server is unavailable, the instrument will try to obtain an IP address using AutoIP. AutoIP automatically assigns an IP address, Subnet Mask, and Default Gateway on networks that do not have a DHCP server.
Installation Obtain DNS server from DHCP DNS is an internet service that translates domain names into IP addresses. It is also needed for the instrument to find and display its hostname assigned by the network. Check this item to obtain the DNS server address from DHCP. You must have previously checked Get IP Address Automatically. DNS server This value is the address of the DNS server. It is used if you are not using DHCP or if you need to connect to a specific DNS server.
2 Installation Communicating Over the LAN Using the Web Server Your Agilent N6705 DC Power Analyzer has a built-in Web server that lets you control it directly from an internet browser on your computer. Up to two simultaneous connections are allowed. With additional connections, performance will be reduced. With the Web server, you can access the front panel control functions including the LAN configuration parameters.
Installation 2 Using Telnet The Telnet utility (as well as sockets), is another way to communicate with the DC Power Analyzer without using I/O libraries or drivers. In all cases, you must first establish a LAN connection from your computer to the DC Power Analyzer as previously discussed. In an MS-DOS Command Prompt box type: telnet hostname 5024 where hostname is the N6705 hostname or IP address, and 5024 is the instrument’s telnet port.
Agilent N6705 DC Power Analyzer User’s Guide 3 Using the Source Functions Turning the Unit On .......................................................................................... 58 Using the Power Supply ................................................................................... 60 Using the Arbitrary Waveform Generator ..................................................... 75 This chapter contains examples on how to operate your DC Power Analyzer.
3 Using the Source Functions Turning the Unit On After you have connected the line cord, turn the unit on using the Line switch. The front panel display lights up after a few seconds. When the front panel Meter View appears, use the front panel knobs to enter voltage and current values. Output 1 is selected by default. Press one of the four On keys to enable an individual output. In Meter View the DC Power Analyzer continuously measures and displays the output voltage and current of each output.
Using the Source Functions 3 If you suspect that there is a problem with the DC Power Analyzer, refer to the troubleshooting section in the N6705 Service Guide. The Service Guide is included as part of the optional Manual Set (Option 0L1). An electronic copy of the N6705 Service Guide is also included on the N6705 Product Reference CD-ROM. Press Meter View to return to the meter view.
3 Using the Source Functions Using the Power Supply Controlling the Outputs NOTE The figures on the right apply to Agilent Models N678xA SMU. Step 1 – Select an output: Press one of the Select Output keys to select an output to control. The lit key identifies the selected output. All subsequent output-specific front panel commands are sent to the selected output. Step 2 – Set the output voltage and current: Turn the Voltage and Current knobs.
Using the Source Functions 3 Step 3 – Enable the output: Press the color-coded On key to enable an individual output. When an output is on, the On key for that output is lit. When an output is Off, the On key is not lit. The All Outputs On and Off keys turn all outputs on or off simultaneously. The state of a disabled output (output off) is a condition of zero output voltage and zero source current. NOTE The red Emergency Stop key turns all outputs off immediately without any output off delays.
3 Using the Source Functions Additional Source Settings In addition to setting the output voltage and current as previously discussed, you can program a number of additional output functions. Press the Settings key to access the Source Settings window. Voltage or Current Range - For outputs with multiple ranges, you can select a lower range if you need better output resolution. Use the navigation keys to highlight either the voltage or current Range field.
Using the Source Functions 3 Agilent N678xA SMU Emulation Settings NOTE The Source Settings window lets you access the specialized operating modes of the Agilent Models N678xA SMU when these power modules are installed. The Emulating dropdown list lets you access the specialized operating modes of the Agilent Models N678xA SMU. Use the navigation keys to select one of the emulating modes. NOTE Information about the Voltage Measure Only and Current Measure Only modes is discussed in chapter 4.
3 Using the Source Functions Depending on the priority mode, you can specify either the output Voltage or output Current setting. The Range function lets you select the appropriate output range. You can also specify a Voltage Limit or Current Limit, which limits the selected parameter at the specified value. In voltage priority mode, the output voltage remains at its programmed setting as long as the load current is within the positive or negative limit.
Using the Source Functions 3 Resistance - This is only available on Agilent Model N6781A. Output resistance programming is primarily used in battery emulation applications, and only applies in Voltage Priority mode. Values are programmed in Ohms, from – 40 mΩ to + 1 Ω. Battery Emulator/Battery Charger Battery emulator and battery charger modes are only available on Agilent Model N6781A. A battery emulator imitates a battery’s charging and discharging functions.
3 Using the Source Functions CC Load/CV Load The CC Load emulates a constant-current load. The CV Load emulates a constant-voltage load. The figures below show the CC and CV load settings. In CC load mode you can specify the input Current and Range as well as the + Voltage Limit. Current Priority mode is locked. Remember to set the input current to a negative value. The + Voltage Limit should normally be set to its maximum value. The – Voltage limit is not programmable.
Using the Source Functions 3 Configuring a Turn-On/Turn-Off Sequence Turn-on and turn-off delays control the turn-on and turn-off timing of the outputs in relation to each other. NOTE You can also synchronize Output On/Off delays across multiple mainframes. Refer to Appendix C under “Output Couple Controls” for further information.
3 Using the Source Functions Step 3 – Coupling selected outputs: NOTE This step is only required if you will be excluding some outputs from participating in an output on/off delay sequence, or if you are coupling multiple mainframes, If all four outputs on a single mainframe are to be used in the sequence, you can skip this step. In the Output On/Off Delays window, navigate to and select the Output Coupling Button. Under Coupled Channels, select the outputs that will be coupled.
Using the Source Functions 3 From the remote interface: To program turn-on and turn-off delays for channels 1 through 4: OUTP:DEL:RISE OUTP:DEL:RISE OUTP:DEL:RISE OUTP:DEL:RISE OUTP:DEL:FALL OUTP:DEL:FALL OUTP:DEL:FALL OUTP:DEL:FALL .01,(@1) .02,(@2) .03,(@3) .04,(@4) .04,(@1) .03,(@2) .02,(@3) .01,(@4) To only include outputs 1 and 2 in a sequence and specify a different delay offset: OUTP:COUP:CHAN 1,2 OUTP:COUP:DOFF:MODE MAN OUTP:COUP:DOFF .
3 Using the Source Functions Configuring Advanced Properties Advanced button - Advanced properties are configured in the Advanced Properties window. Press the Settings key to access the Source Settings window. Navigate to and select Advanced. Voltage Slew - The voltage slew rate determines the rate at which the voltage changes to a new setting. To program a voltage slew rate, enter the rate (V/s) in the Voltage Slew field. Check Maximum to program the fastest rate.
Using the Source Functions 3 Output Voltage Bandwidth – This is only available on Agilent Models N678xA SMU. Output voltage bandwidth settings allow you to optimize output response time with capacitive loads. Refer to Chapter 6 under “Output Bandwidth” for more information. Output Turn-Off Mode – This is only available on Agilent Models N678xA SMU operating in Voltage priority mode. It lets you specify high impedance or low impedance mode at output on/off.
3 Using the Source Functions Configuring Protection Functions Protection functions are configured in the Protection Configuration window. Press the Settings key to access the Source Settings window. Navigate to and select Protection. Then press Enter. Over Voltage Protection - Over-voltage protection disables the output if the output voltage reaches the OVP level. To set the overvoltage protection, enter an over-voltage value in the +Level field.
Using the Source Functions OC An over-current protection OT An over-temperature protection. Osc An oscillation protection. Only applies to Agilent N678xA SMU. PF A power-fail condition on the AC mains. CP+ A positive power limit condition. See chapter 6 for further information. CP− A negative power limit condition. See chapter 6 for further information. Prot A coupled protection signal, or an expired watchdog timer. Inh An Inhibit input signal. See Appendix C for further information.
3 Using the Source Functions Configuring Advanced Protection Press the Settings key to access the Source Settings window. Navigate to and select Protection. Navigate to and select Advanced. All Outputs – for all outputs you can program the Inhibit input (digital pin 3) on the rear panel to act as an external protection shutdown signal. The behavior of this signal can be set to either Latched or Live (non-latched). Off disables the remote inhibit. Refer to Appendix C for further information.
Using the Source Functions 3 Using the Arbitrary Waveform Generator Each output on DC Power Analyzer can be modulated by the power module’s built-in arbitrary waveform generator function. This allows the output to act as a DC bias transient generator or an arbitrary waveform generator. The maximum bandwidth is based on the type of power module that is installed. This is documented in the Agilent N6700 Modular Power System Family Specifications Guide. See the note in the beginning of Appendix A.
3 Using the Source Functions Configuring Pulse Arbs NOTE The basic steps in this example are the same steps used to program the Sine, Step, Ramp, Staircase, and Exponential Arbs. The only difference is in the individual Arb parameters. These differences are described in the reference section at the end of this chapter. Step 1 – Select a Voltage or Current Pulse Arb: Press the Arb key twice or press the Arb key and then Properties to access the Arb Selection window.
Using the Source Functions 3 Step 3 – Select the Trigger Source: To specify a Trigger source for the arbitrary waveforms, press the Arb key, then select the Trigger Source field. The same trigger source will be used to trigger all of the arbitrary waveforms. Arb Run/Stop key selects the front panel Arb Run/Stop key as the trigger source. BNC Trigger In selects the rear trigger input BNC connector as the trigger source. Remote command selects a remote interface command as the trigger source.
3 Using the Source Functions Configuring User-Defined Arbs User-defined Arbs can contain up to 511 voltage or current steps that are entered individually in the User-defined Properties window. You can also populate the User-defined voltage or current Arb with values from a previously configured “standard” arbitrary waveform and then edit the steps in the User-defined Properties window.
Using the Source Functions 3 Specify if the Arb should repeat, either continuously or only for a specified repeat count. A repeat count of 1 runs the Arb once. Step 3 – Exporting or importing User-defined Arb data After you have configured the User-defined Arb, you can use the Export button to save the Arb list to a file. Conversely, if you have previously created or saved a User-defined data file, you can use the Import button to import the Arb list.
3 Using the Source Functions Step 4 – Select the trigger source: To specify a Trigger source for the arbitrary waveforms, press the Arb key, then select the Trigger Source field. The same trigger source will be used to trigger all of the arbitrary waveforms. Arb Run/Stop key selects the front panel Arb Run/Stop key as the trigger source. BNC Trigger In selects the rear trigger input BNC connector as the trigger source. Remote command selects a remote interface command as the trigger source.
Using the Source Functions 3 Configuring Constant-Dwell Arbs Constant-Dwell (CD)Arbs are a unique type of Arb that have some useful differences from other types. CD Arbs are not limited to 511 points, they can contain up to 65,535 points. Unlike other Arbs, they do not have separate dwell values associated with each point; a single dwell value applies to every point in the CD Arb. Also, the minimum dwell time of a CD Arb is 10 .24 microseconds, instead of the 1 microsecond resolution of the other Arbs.
3 Using the Source Functions Specify what happens when the waveform completes – select whether the output returns to the DC value that was in effect before the waveform started, or whether the output should remain at the last Arb value. Specify if the Arb should repeat, either continuously or only for a specified repeat count. A repeat count of 1 runs the Arb once.
Using the Source Functions 3 Step 5 – Preview and run the Arb: The Arb Preview dialog shown above provides a preview of the Constant-dwell waveform that will be run on output 1. Select Meter View or Scope View to display the Arb. Press the Output 1 On key to enable the output. Press the Arb Run/Stop key to run the Arb.
3 Using the Source Functions Configuring an Arb Sequence The Arb Sequence allows multiple and different Arbs to run one after another is succession. Any of the standard Arb types, except for Constant Dwell Arbs, can be included in the Arb sequence. All Arbs in the sequence must be of the same type; either voltage or current. As with single Arbs, each Arb in the sequence has its own repeat count, can be set for dwell or trigger pacing, and can be set to repeat continuously.
Using the Source Functions 3 Once the step is configured, the Time field will indicate the time that is allocated to the step. The Pacing field indicates the method of transitioning to the next step; either dwell time or external trigger. Select the Add button to insert a new step below the selected step. Note that the values in the new step are copied from the previous step. Select and edit another Arb from the Name dropdown list.. Select Delete if you want to delete the selected step.
3 Using the Source Functions Under Path/Filename, click Browse and specify the location where the import file is located or where the export file will be placed. Internal:\ specifies the instrument’s internal memory. External:\ specifies the Memory port on the front panel. Select Load to load the file. Select Save to save the file. Step 4 – Select the trigger source: To specify a Trigger source for the arbitrary waveforms, press the Arb key, then select the Trigger Source field.
Using the Source Functions • 3 When a step type is added, all parameters must be entered. The following commands program a sequence comprised of a pulse, a ramp, and a sine Arb with the pulse Arb repeated twice. To set up output 1 to program a sequence of voltage waveforms: ARB:FUNC:TYPE VOLT,(@1) ARB:FUNC:SHAP SEQ,(@1) ARB:SEQ:RESet (@1) To program step 0 as a voltage pulse: ARB:SEQ:STEP:FUNC:SHAP PULS,0,(@1) ARB:SEQ:STEP:VOLT:PULS:STAR:TIM 0.25,0,(@1) ARB:SEQ:STEP:VOLT:PULS:TOP 10.
3 Using the Source Functions Arbitrary Waveform Parameters Common Parameters The following properties are common to most Arb functions: Parameter: Description: Return to DC Value The parameter setting returns to the DC value that was in effect prior to the Arb. The parameter setting remains at the last Arb value after the Arb completes. Create a user-defined Arb from the present Arb property values. This lets you edit specific points in the standard arbitrary waveform.
Using the Source Functions 3 Step Parameters Parameter: Description: Start Setting (I0 or V0) End Setting (I1 or V1) Delay (T0) The setting before the step. The setting after the step. The delay after the trigger is received before the step occurs.
3 Using the Source Functions Ramp Parameters Parameter: Description: Start Setting (I0 or V0) End Setting (I1 or V1) Delay (T0) The setting before the ramp. The setting after the ramp. The delay after the trigger is received but before the ramp starts. The time that the output ramps up. The time the output remains at the end setting after the ramp completes.
Using the Source Functions 3 Staircase Parameters Parameter: Description: Start Setting (I0 or V0) End Setting (I1 or V1) The setting before the staircase. The setting after the final stair step (the difference between the start and end setting is divided equally between the steps). The delay after the trigger is received but before the staircase starts. The time to complete all staircase steps. The time the output remains at the end setting after the staircase completes.
3 Using the Source Functions Sine Parameters Parameter: Description: Amplitude (I0 or V0) Offset (I1 or V1) The amplitude or peak value. The offset from zero. For power modules that cannot generate negative voltages or currents, the offset cannot be less than the amplitude. The frequency of the sine wave.
Using the Source Functions 3 Pulse Parameters Parameter: Start Setting (I0 or V0) Pulse Setting (I1 or V1) Delay (T0) Pulse Width (T1) End Time (T2) Description: The setting before and after the pulse. The amplitude of the pulse. The delay after the trigger is received but before the pulse starts. The width of the pulse. The time the output remains at the end setting after the pulse completes.
3 Using the Source Functions Trapezoid Parameters Parameter: Start Setting (I0 or V0) Peak Setting (I1 or V1) Delay (T0) Rise Time (T1) Peak Width (T2) Fall Time (T3) End Time (T4) Description: The setting before and after the trapezoid. The peak setting. The delay after the trigger is received but before the trapezoid starts. The time that the trapezoid ramps up. The width of the peak. The time that the trapezoid ramps down. The time the output remains at the end setting after the trapezoid completes.
Using the Source Functions 3 Exponential Parameters Parameter: Description: Start Setting (I0 or V0) End Setting (I1 or V1) Delay (T0) The setting before the waveform. The end setting of the waveform. The delay after the trigger is received but before the waveform starts. Time for the amplitude to go from the start setting to the end setting. The time constant of the curve.
3 Using the Source Functions User-Defined Parameters Parameter: Description: Step Each step of the waveform includes a voltage or current parameter, dwell time, and trigger option. The total number of steps determines the length. Use the ▲ ▼ navigation keys to scroll through the steps. Current or Voltage Time The current or voltage value of the step. The time that the output stays at the step. Trigger Generate an external trigger signal at the start of the step when checked.
Using the Source Functions 3 Constant-Dwell Parameters Parameter: Description: Dwell per Step The dwell time for each step in seconds. Values range from10.24 μs to 0.30 s. Import (.csv format) Imports a current or voltage CD Arb list. Export (.csv format) Exports a current or voltage CD Arb list.
3 Using the Source Functions Arb Sequence Parameters Parameter: Description: Step Each step of the sequence includes a step number, an arbitrary waveform, step time, and pacing option. The total number of steps determines the length. Use the ▲ ▼ navigation keys to scroll through the steps. Name The name of the Arb. Select an Arb from the dropdown list. Select Edit or Properties to edit the waveform. The Pulse waveform edit fields are shown above.
Using the Source Functions 3 From the remote interface: The following must be observed when creating or editing an Arb sequence: • The Arb function type (voltage or current) must match the Arb type specified in each sequence step. • The Arb sequence step function waveshape must match the shape used in the parameter commands that follow. • The last value in the parameter list is the sequence step number.
3 Using the Source Functions From the remote interface: Select from one of the following SCPI trigger sources: BUS Selects a GPIB device trigger, *TRG, or (Group Execute Trigger). IMMediate Selects the immediate trigger source. This triggers the Arb immediately when the EXTernal Selects the trigger input BNC connector on the rear panel. You must provide a low-true signal to the connector INITiate command is sent.
Using the Source Functions 3 From the remote interface: To initiate the transient trigger system: INIT:TRAN(@1) It takes a few milliseconds for the instrument to be ready to receive a trigger signal after receiving the INITiate:TRANsient command. If a trigger occurs before the trigger system is ready for it, the trigger will be ignored. You can test the WTG_tran bit in the operation status register to know when the instrument is ready to receive a trigger after being initiated.
3 Using the Source Functions Importing/Exporting User-Defined and Constant-Dwell Arb Data You can create an arbitrary waveform in a Microsoft Excel spreadsheet and import it into the instrument using the Import function as previously explained in this chapter under “Configuring User-Defined Properties” and “Configuring Constant-Dwell Properties”. Likewise, you can also Export an arbitrary waveform from the instrument to a spreadsheet.
Agilent N6705 DC Power Analyzer User’s Guide 4 Using the Measurement Functions Using the Meter Functions ............................................................................ 104 Using the Scope Functions............................................................................ 109 Using the Data Logger Functions ................................................................. 119 This chapter contains examples on how to operate your DC Power Analyzer.
4 Using the Measurement Functions Using the Meter Functions Each power module has a fully integrated voltmeter and ammeter to measure the actual voltage and current being sourced from the output to the device under test. The accuracy of the voltage and current measurements is based on the type of power modules that are installed, as documented in the Agilent N6700 Modular Power System Family Specifications Guide. Meter View From the front panel Each output has its own measurement capability.
Using the Measurement Functions 4 Meter Ranges Some power modules have multiple voltage and current measurement ranges (see chapter 1 under “Power Module Features”). Selecting a lower measurement range provides greater measurement accuracy, provided that the measurement does not exceed the range. If the measurement exceeds the range, an “Overload” error will occur. From the front panel To specify a measurement range, press the Meter View key, then press Properties.
4 Using the Measurement Functions Seamless voltage and current measurement autoranging is available on Agilent Models N6781A and N6782A. This enables a wide dynamic measurement range with no data lost across ranges. Autoranging does not include the 10 μA range, which must be selected manually.
Using the Measurement Functions 4 The Voltage Measure Only mode works best when the sense terminals are connected to the output terminals, either by connecting the sense and load leads to directly to the DUT, or by using the local sensing on the front panel. Note that the input impedance in Voltage Measure Only mode will be somewhere around 2000 pF depending on the grounding of the DUT. This may draw up to a few microamperes of current from the nodes that are being measured.
4 Using the Measurement Functions Agilent N6781A Auxiliary Voltage Measurements NOTE The following information only applies to Agilent Model N6781A. The Agilent N6781A has an auxiliary voltage measurement input, whose primary use is for battery voltage rundown measurements. It may also be suitable for other applications including general purpose DC voltage measurements between +/-25 VDC. The auxiliary voltage measurement input is isolated from other commons. It has a bandwidth of about 2 kHz.
Using the Measurement Functions 4 Using the Scope Functions The DC Power Analyzer’s scope function is similar to a bench oscilloscope, displaying output voltage and current signals as a function of time. It has controls that select which outputs and functions to display, front panel knobs that adjust gain and offset, and configurable triggers and markers. You can configure the Scope View to display voltage or current waveforms for all outputs.
4 Using the Measurement Functions Step 3 – Configure the Scope View traces: • Check V1 through V4 • Uncheck I1 through I4 • Use the Vertical Volts/Div. knob to set V1 through V4 to 10 V/Div. • Use the Offset knob to move the four traces so that they are separated by at least one space on the vertical grid. • Use the Horizontal Time/Div. knob to set the timebase to 20 ms. Traces are color coded according to output.
Using the Measurement Functions 4 Step 5 – Turn on the outputs and measure the voltage: Press Scope View to return the display the scope view. • Press the Run/Stop key to run the scope. When this key is lit, it indicates that the scope is running. • Press the All Outputs On key to start the output sequence and trigger the scope. You should see the output waveforms displayed as follows: Note that the delay for output 1 does not start until 57 milliseconds have elapsed.
4 Using the Measurement Functions Scope View Press the Scope View key to view the scope. This key toggles between the Standard view shown below, and Marker view, which enables markers and marker calculations. Standard View Symbol/Field: Description: 1 Trace Controls Identifies the volt/div. or curr/div. setting. √ indicates the trace is on. Dashes (----) indicate the trace is off. Select the trace and press Enter to turn it on or off.
Using the Measurement Functions 4 Symbol/Field: Description: 8 Trigger Indicator Shows the position of the trigger with respect to the waveform. In this example, the trigger is offset to the left of the original point. The trigger point corresponds to the offset reference when the offset is zero. 9 Scope Status Indicates whether the scope is Running, Stopped, or Waiting for a trigger. Range Range indicates the measurement range setting of the selected trace.
4 Using the Measurement Functions Marker View Symbol/Field: Description: 1 m1/m2 points Shows where the measurement markers intersect the selected waveform. Data values at the bottom of the display are referenced to the intersect locations of the markers. Calculations are based on the data points in between the intersect locations. 2 Delta Indicates the delta or absolute difference between the markers in units (volts, amps, or watts) and in time (seconds).
Using the Measurement Functions 4 Using the Waveform Display Knobs 3 4 1 5 2 6 Knob: Description: 1 Vertical Volts/Div Makes the waveform bigger or smaller vertically in relation to its ground reference. Specified in volts/division or amps/division on the y axis. On outputs with multiple ranges, when Knob Control is selected in the Scope Range Property window, adjusting the vertical gain will automatically select lower measurement ranges for better resolution.
4 Using the Measurement Functions Scope Properties NOTE There are no remote interface commands that correspond directly to the front panel Scope functions. See chapter 5, “Digitizing Measurements” for information on programming digitized measurements from the remote interface. With the Scope View displayed, press the Properties key to access the Scope Properties window. In the Display Trace area, select which traces to display for the output.
Using the Measurement Functions 4 The Level field lets you specify a trigger level if you selected a Voltage level or Current level as the trigger source. The Slope selection specifies if the measurement will be triggered on the positive (up-slope) or negative (down-slope) portion of the waveform. Use the Mode dropdown list to select a trigger mode.
4 Using the Measurement Functions Scope Marker Select the Markers button to configure the measurements that appear on the bottom of the display in Marker view. Measurements apply to the portion of the waveform between the two markers. You can only select a maximum of five measurements to be displayed. Scope Horizontal Select the Horizontal button to configure the horizontal properties. The Sample Points field lets you specify the number of points in a scope trace.
Using the Measurement Functions 4 Using the Data Logger Functions NOTE The Data Logger function is not available if Option 055 has been ordered. The Data Logger is similar to the Scope View function except that it lets you view and log output voltage and current data for up to 99,999 hours. As in Scope View, you can configure the Data Logger View to display voltage or current waveforms for all outputs. Power waveforms can be displayed for all outputs because of the interleaved data logging capability.
4 Using the Measurement Functions Step 2 – Configure the Data Logger traces: • Check V1 • Uncheck V2 through V4 as well as the current and power traces. • Use the Vertical Volts/Div. knob to set V1 10 V/Div. • Use the Offset knob to move the V1 trace to the bottom of the grid. Traces are color coded according to output. The ground symbol on the right side of the display indicates the ground reference of the trace.
Using the Measurement Functions 4 Step 4 – Turn on output 1, start the Arb, and log the data: Press Data Logger to return the display to the data logger view. • Press the Output 1 On key to turn on output 1. • Press the Run/Stop key to run the data logger. When this key is lit, the data logger is initiated and the output 1 trace is displayed on the screen. • Press the Arb Run/Stop key to start the user-defined Arb and trigger the data logger.
4 Using the Measurement Functions From the remote interface: To program a User-defined voltage waveform of 5 steps on output 1: ARB:FUNC:TYPE VOLT,(@1) ARB:FUNC:SHAP UDEF,(@1) ARB:VOLT:UDEF:LEV 10,20,30,40,50,(@1) ARB:VOLT:UDEF:DWEL 1,(@1) ARB:VOLT:UDEF:BOST 0,(@1) ARB:TERM:LAST OFF,(@1) To initiate the transient trigger system: VOLT:MODE ARB,(@1) TRIG:ARB:SOUR BUS INIT:TRAN (@1) To set up the data log for output 1: SENS:DLOG:VOLT ON,(@1) SENS:DLOG:TIME 30 SENS:DLOG:PER .
Using the Measurement Functions 4 Data Logger View Press the Data Logger key to access the Data Logger. This key toggles between the Standard view shown below, and Marker view, which enables markers and marker calculations. Standard View Symbol/Field: Description: 1 Trace Controls Identifies the volt/div. or curr/div. settings. √ indicates the trace is on. Dashes (----) indicate the trace is off. Select the trace and press Enter to turn it on or off. 2 Data Bar Represents all of the logged data.
4 Using the Measurement Functions Symbol/Field: Description: 8 Trigger Point Indicator Indicates the trigger position in the data log. In this example the trigger point was offset by 50%, and the pre trigger data and the post trigger data was logged. The time at the trigger point is always zero. Change the trigger offset in the Datalogger Trigger Properties window. 9 Time/Div. Identifies the horizontal time-base setting. This can be adjusted using the front panel Horizontal Time/Div knob.
Using the Measurement Functions 4 Marker View Symbol/Field: Description: 1 m1/m2 points Shows where the measurement markers intersect the selected waveform. Data values at the bottom of the display are referenced to the intersect locations of the markers. Calculations are based on the data points in between the intersect locations. 2 Delta Indicates the delta or absolute difference between the markers in units (volts, amps, or watts) and in time (seconds).
4 Using the Measurement Functions Using the Waveform Display Knobs 3 4 1 5 2 6 Knob: Description: 1 Vertical Volts/Div Makes the waveform bigger or smaller vertically in relation to its ground reference. Specified in volts/division or amps/division on the y axis. If the vertical gain causes the trace to be out of view, arrow symbols will indicate the direction of the trace. 2 Vertical Offset Moves the ground reference of the trace up or down in relation to the horizontal center line of the grid.
Using the Measurement Functions 4 Data Logger Properties From the front panel: With the Data Logger view displayed, press the Properties key. In the Display Trace area, select which traces to display for the output. If no box is checked, no data logging will occur on the output. The text line under the traces identifies the data logging mode. Continuously-sampled mode continuously samples the voltage or current data at a 20.48-microsecond rate and stores one averaged value per sample period.
4 Using the Measurement Functions You cannot data log output power from the remote interface. To obtain power data, you need to data log both voltage and current and then calculate the power from the resulting voltage and current data.
Using the Measurement Functions 4 Data Logger Trigger NOTE Once the Data Logger has been triggered, do not change the display to Scope View or Meter View; otherwise Data Logger will stop. From the front panel: Select the Trigger button to configure the trigger properties. The Data Logger uses triggers to synchronize itself with an external event. The Source dropdown list lets you select a trigger source.
4 Using the Measurement Functions For example, if you specified a data log duration of 30 minutes and a trigger position of 50%, the Data Logger will log 15 minutes of pretrigger data to the file before the trigger occurs. Subsequently, 15 minutes of post-trigger data will then be logged to the data file.
Using the Measurement Functions 4 Data Logger Filename From the front panel: Select the Filename button to specify a filename in which to save the data. Data will be logged to this filename the next time the Data Logger runs. If you do not specify a filename, the data will be logged to default.dlog, which is overwritten each time the Data Logger runs. Enter the filename in the Path\File field. Check Append date and time at start of log to include time-stamp information in the file.
4 Using the Measurement Functions From the remote interface: The following commands position the markers. To position the two data log markers at 100 seconds and at 200 seconds from the start trigger on the data log: SENS:DLOG:MARK1 100 SENS:DLOG:MARK2 200 The following commands return data between the two markers.
Using the Measurement Functions 4 Data Logger Sampling Modes The DC Power Analyzer provides two modes of data logging: Continuously-sampled mode (the default), and Standard (or interleaved) mode. The mode is automatically selected based on the installed power module types and the selected measurements, and applies to all outputs. A text message in the Display Trace area of the Data Logger Properties window indicates which mode is in effect.
4 Using the Measurement Functions 1 parameter (voltage or current) 3 parameters (voltage+min+max) 6 parameters (voltage+min+max X 2 outputs) 12 parameters (voltage+min+max X 4 outputs) 24 parameters (voltage+min+max X 4 outputs & current+min+max X 4 outputs) NOTE 20 microseconds (rounded) 60 microseconds (rounded) 120 microseconds (rounded) 240 microseconds (rounded) 480 microseconds (rounded) When the Power trace is selected, it counts as 2 parameters, since voltage and current must be measured to calc
Using the Measurement Functions 4 Scope and Data Logger Display Differences The Scope View and Data Logger displays are similar in many respects, such as the way traces are displayed, how traces are selected, and the marker controls - to name a few. This similarity makes it easier to program each function. However, there are important differences in the Scope and Data Logger displays that may not be obvious at first glance.
Agilent N6705 DC Power Analyzer User’s Guide 5 Using the System Functions Using the File Functions ................................................................................ 138 Configuring User Preferences ....................................................................... 145 Using the Administrative Tools ....................................................................
5 Using the System Functions Using the File Functions Press the File key, then scroll to and select from the following: Save Function To save the instrument state, scope data, or an Arb sequence, press the File key, then scroll to and select Save. Parameter: Description: Type Specifies the data type: instrument state or scope data or Arb sequence. Path\File Name Specifies a file name in which to save the data. Internal:\ specifies the instrument’s internal memory.
Using the System Functions 5 Load Function To load an instrument state, scope data, logged data, or an Arb sequence, press the File key, then scroll to and select Load. You can only load binary files. You cannot load data files in .csv format. Parameter: Description: Type Data type: instrument state, scope data, or logged data, or Arb sequence. Path\File Name Displays the file where the data is located. Internal:\ specifies the instrument’s internal memory.
5 Using the System Functions Import Function To import (and convert) Arb data (user-defined or CD), press the File key, then scroll to and select Import. Parameter: Description: Type Data type: Arb data (user-defined or CD). Data is converted from .csv format to an internal file format. Output <1-4> Specifies the output that will receive the Arb data. Path\File Name Displays the file where the data is located. Internal:\ specifies the instrument’s internal memory.
Using the System Functions 5 Show Details To view the details of a specific file, press the File key, then scroll to and select File Management. Parameter: Description: Path\File Name Specifies the file. Internal:\ specifies the instrument’s internal memory. External:\ specifies the Memory port on the front panel. Browse Lets you browse another directory or USB memory device. Details File details are displayed in the text box.
5 Using the System Functions Rename Function To rename a file, press the File key, then scroll to and select File Management. In the Action dropdown box, select Rename. Parameter: Description: Path\File Name Specifies the file or directory to be renamed. Internal:\ specifies the instrument’s internal memory. External:\ specifies the Memory port on the front panel. Browse Lets you browse another directory or USB memory device.
Using the System Functions 5 New Folder To create a new folder at the present directory level, press the File key, then scroll to and select File Management. In the Action dropdown box, select New Folder. Parameter: Description: Path\New Folder Name Specifies a name for the folder. Internal:\ specifies the instrument’s internal memory. External:\ specifies the Memory port on the front panel. Enter the name in the text field.
5 Using the System Functions Using an External USB Memory Device You can use an external USB memory device (commonly referred to as a flash drive) to transfer files to and from the DC Power Analyzer. Connect the memory device to the front panel Memory port, which is specifically designed for this purpose. The rear panel USB connector should only be used for connecting to a PC.
Using the System Functions 5 Configuring User Preferences To configure the User Preferences, press the Menu key, scroll down and select the Utilities item, then select User Preferences. Then scroll to and select one of the following User Preferences: Front Panel Preferences The DC Power Analyzer has a front panel screen saver that increases the life of the LCD display by turning it off during periods of inactivity.
5 Using the System Functions Front Panel Lockout You can password-protect the front panel keys to prevent unwanted control of the instrument from the front panel. The lock setting and password is saved in non-volatile memory so that the front panel remains locked even when AC power is cycled. To access the front panel lockout function press the Menu key, scroll down and select Utilities, then User Preferences, then Front Panel Lockout.
Using the System Functions 5 Using the Administrative Tools To enter the Administrative Utilities menu, press the Menu key, scroll down and select Utilities, then select Administrative Tools. Access to the Administrative Tools menu is password protected. Select Administrator Logout/Login to enter the password. Administrator Login/Logout If a password is required, enter it in to the PIN field, select the Login button and press [Enter]. As shipped from the factory, the password is 0 (zero).
5 Using the System Functions Securing the USB, LAN, and Web Server The USB interface, LAN interface, and the Web server are enabled when shipped. Log into the Administrative Tools menu to secure or allow access to the LAN, USB, or Web server. Check the Enable LAN box to enable the LAN. Uncheck this box to disable the LAN. Check the Enable WebServer box to enable the Web server. Uncheck this box to disable the Web server. If the Enable LAN box is not checked, the Web server will not be available.
Using the System Functions 5 Disk Management The Disk Management function checks the internal drive for file system consistency and file integrity. Any file errors or discrepancies are automatically fixed. To access the disk management utilities, log into the Administrative Tools menu, then select Disk Management. Press the Check Internal Drive button to check the internal drive. Updating the Firmware The easiest way to update the firmware on your DC Power Analyzer if to go the web at http://www.agilent.
5 Using the System Functions Installing Options The Install Options function lets you install firmware options into the DC Power Analyzer. Option: Description: 001 Data Logger Software This option is only available on instruments that have been purchased with Option 055 – Delete Data Logger. 056 Agilent 14585A Control and Analysis Software To access the disk management utilities, log into the Administrative Tools menu, then select Install Options.
Using the System Functions 5 Changing the Password To password-protect or change the password for the Administrative Tools menu, log into the Administrative Tools menu as previously described ands select Change Password. Select a password that is numeric and up to 15 digits long. Enter it into the PIN field and then select Change Pin. When done, select Administrator Login/Logout to log out of the Administrative Tools menu and activate the password.
Agilent N6705 DC Power Analyzer User’s Guide 6 Advanced Source and Measurement Functions Source Operating Modes ............................................................................... 154 Advanced Measurements .............................................................................. 162 This chapter discusses the difference between constant voltage and constant current operating modes, multiple output quadrant operation, and other advanced source functions.
6 Advanced Source and Measurement Functions Source Operating Modes Single Quadrant Operation The DC Power Analyzer can operate in either constant voltage (CV) or constant current (CC) over the rated output voltage and current. Constant voltage mode is defined as an operating mode in which the dc source maintains its output voltage at the programmed voltage setting in spite of changes in load, line, or temperature.
Advanced Source and Measurement Functions 6 Autoranging NOTE Autoranging only applies to Agilent N675xA and N676xA power modules. The following figure illustrates the autoranging output characteristic of the Agilent N675xA and N676xA power modules. Point 3 shows a situation in which the voltage and current settings are such that the operating locus is limited by the maximum output power boundary of the output. Depending on the power module, this may be greater than the output power rating of the module.
6 Advanced Source and Measurement Functions You can specify if the delay timer is started by any transition of the output into CC mode (select CC Transition), or if the delay timer is started at the end of a settings change in voltage, current, or output state (select Settings Change).
Advanced Source and Measurement Functions 6 For Agilent N673xB, N674xB, and N677xA power modules, the power limit function turns the output off after a power limit persists for about 1 millisecond. A status bit (CP+) will indicate that the output has been turned off by a power limit condition. To restore the output, you must first adjust the load so that it draws less power. Then clear the protection function as previously explained.
6 Advanced Source and Measurement Functions Grouped outputs are controlled using the output number of the lowest output in the group. As shown in the following figure, output 1 is grouped with output 2 and output 3 is grouped with output 4. To return grouped outputs back to an ungrouped state, turn the output off and remove the parallel connections between the outputs. Then uncheck the check boxes. Then cycle AC power to the unit for the grouping or ungrouping changes to take effect.
Advanced Source and Measurement Functions 6 + Voltage +20 V / +6 V +OV V setting -1 A / -3 A + Current +1 A / +3 A -I limit +I limit − Voltage operation applies to N6784A only -20 V / -6 V Key −OV Sourcing power Sinking power Programmable The heavy solid line illustrates the locus of possible operating points as a function of the output load.
6 Advanced Source and Measurement Functions tracking enabled, the negative voltage limit tracks the positive voltage limit setting. With tracking disabled, you can set different values for the positive and negative voltage limits. The following figure shows the current priority operating locus of the power modules. The area in the white quadrants shows the output as a source (sourcing power). The area in the shaded quadrants shows the output as a load (sinking power).
Advanced Source and Measurement Functions 6 Output Bandwidth Agilent Models N678xA SMU have several voltage bandwidth modes that let you optimize output response time with capacitive loads. The Low bandwidth setting provides stability with a wide range of load capacitors. Additional bandwidth modes provide faster output response when the load capacitance is restricted to smaller ranges.
6 Advanced Source and Measurement Functions Advanced Measurements Digitizing Measurements The digitizing measurements discussed in this section allow you to perform most but not all of the scope measurement function available on the front panel. One example of functionality not available over the remote interface is the ability to program markers and make calculated measurements between markers. With the digitizing measurement functions you can: NOTE Specify a measurement function and range.
Advanced Source and Measurement Functions 6 To enable seamless voltage or current autoranging on channel 1: SENS:VOLR:RANG:AUTO ON,(@1) SENS:CURR:RANG:AUTO ON,(@1) Adjust the Measurement Sample Rate The following figure illustrates the relationship between measurement samples (or points), and the time interval between samples in a typical measurement.
6 Advanced Source and Measurement Functions Capture Pre-trigger Data The measurement system lets you capture data before, after, or at the trigger signal. As shown in the following figure, you can move the block of data being read into the acquisition buffer with reference to the trigger. This allows pre- or post-trigger data sampling.
Advanced Source and Measurement Functions 6 One way of dealing with AC line ripple is to use a Hanning window. The Hanning window applies a cos4 weighting function to the data when calculating average measurements. This attenuates the AC noise in the measurement window. The best attenuation is achieved when at least three or more waveform cycles are in the measurement.
6 Advanced Source and Measurement Functions To specify the voltage or current trigger level and slope of output 3: TRIG:ACQ:CURR 10,(@3) TRIG:ACQ:CURR:SLOP POS,(@3) TRIG:ACQ:VOLT 10,(@3) TRIG:ACQ:VOLT:SLOP POS,(@3) NOTE A non-programmable hysteresis for level triggers reduces false triggering on slow signals. The hysteresis is set to 0.0005 X maximum range value. For example, on the 50 V range, the hysteresis is approximately 25 mV.
Advanced Source and Measurement Functions 6 Retrieve the Measurement Data After a trigger is received and the data acquisition completes, the trigger system will return to the Idle state. When this occurs, you can use FETCh queries to return specific voltage or current data from a previously triggered measurement. FETCh queries do not alter the data in the measurement buffer.
6 Advanced Source and Measurement Functions External Data Logging NOTE The external Data Logger function is not available if Option 055 has been ordered. In addition to the built-in data logger, the DC Power Analyzer has an external data logger (Elog) function that lets you log voltage and current measurements from all four outputs directly to an internal FIFO (first-in, first-out) buffer. Note that this buffer is only large enough to hold about 20 seconds of accumulated measurements.
Advanced Source and Measurement Functions 6 The external data logger function cannot be programmed from the front panel. When an external data log measurement is initiated on an output channel, the front panel changes to Meter View. Any channel that is performing an external data log measurement displays a message to this effect.
6 Advanced Source and Measurement Functions During the integration period, data log samples are averaged, and the minimum and maximum values are tracked. At the end of each integration period the average, minimum, and maximum values are added to the internal FIFO buffer. Although the absolute minimum integration period is 102.4 microseconds, the actual minimum varies as a function of the number of parameters that are being logged. The actual minimum is 102.
Advanced Source and Measurement Functions 6 Use the following commands to select a trigger source.
6 Advanced Source and Measurement Functions Dynamic Current Correction Control NOTE This control is used when making dynamic current measurements; it is not required for static (or dc) measurements. On Models N678xA SMU, N6753A N6756A, and N6763A - N6766A, the designs are such that dynamic current correction is not needed and the control is therefore unavailable. The DC Power Analyzer measures the output current across an internal current monitor.
Advanced Source and Measurement Functions 6 Measurement System Bandwidth NOTE The following applies when making dynamic current measurements; not when making static (or DC) measurements. This information does not apply to models N678xA SMU. For N678xA bandwidth information, refer to the Agilent N6700 Modular Power System Family Specifications Guide. The measurement bandwidth of the DC Power Analyzer is dependent on the following factors: Whether voltage or current is being measured.
6 Advanced Source and Measurement Functions Power Module N6751A, N6752A, N6761A, N6762A N6753A, N6755A, N6763A, N6765A N6754A, N6756A, N6764A, N6766A N6773A N6774A N6775A N6776A, N6777A CO Value 25.4 µF 4.7 µF 2.2 µF 13.2 µF 11.2 µF 4.02 µF 3.54 µF Power Module N6731B, N6741B N6732B, N6742B N6733B, N6743B N6734B, N6744B N6735B, N6745B N6736B, N6746B CO Value 30 µF 23.5 µF 13.4 µF 9.8 µF 12.8 µF 3.
Advanced Source and Measurement Functions 6 Agilent N6781A and N6782A Current Histogram Measurements NOTE The following information only applies to Agilent Models N6781A and N6782A. Histogram measurements are not available if option 055 (delete data logger) has been ordered. A current histogram measurement provides a statistical measurement for profiling the measured current. The acquisition generates an array of frequency of occurrence vs.
6 Advanced Source and Measurement Functions Seamless Measurements For Agilent Models N6781A and N6782A only, you can select seamless voltage and current measurements. The Auto selection provides seamless measurement ranging, which results in a wide dynamic range with no data being lost across ranges. Autoranging does not include the 10 μA range, which must be selected manually.
Advanced Source and Measurement Functions 6 the amplitude range of each bin of the histogram and the value of the bin that the sampled value falls within is incremented by 1. There is some overlap between the lowest bins of the high range and the highest bins of the low range; values that overlap both ranges are placed in the low range buckets. Each Fetch returns the latest cumulative histogram data. The measurement continues until it is aborted.
6 Advanced Source and Measurement Functions Measurement Data Formats The default data format for measurement queries is ASCII. You can also specify Real data format when returning SCPI array and external datalog measurements as well as for setting and querying constantdwell Arb levels. ASCII Numeric data is transferred as ASCII bytes in , , or format as appropriate. The numbers are separated by commas Real Data is returned in binary IEEE single precision floating point.
Agilent N6705 DC Power Analyzer User’s Guide Appendix A Specifications Agilent N6705A, N6705B DC Power Analyzer Mainframe....................... 180 This appendix lists the supplemental characteristics of the Agilent N6705 DC Power Analyzer. A dimensional line drawing of the mainframe is included at the end of the appendix. Supplemental characteristics are not warranted but are descriptions of performance determined either by design or by type testing.
Appendix A Specifications Agilent N6705A, N6705B DC Power Analyzer Mainframe Supplemental Characteristics N6705A, N6705B Maximum Power Available for Modules: (sum of total module output power) 600 W Front Panel Output Terminals: Maximum current rating 20 A BNC Trigger Connectors: I/O Digital TTL level compatible Maximum voltage 5V USB Current Ratings: Front panel USB connector 200 mA Rear panel USB connector 300 mA Data Storage: Internal flash memory 4 Gbyte (Earlier N6705 models have less mem
Specifications Appendix A Supplemental Characteristics (continued) N6705A, N6705B Regulatory Compliance: EMC Complies with European EMC Directive for test and measurement products. ● IEC/EN 61326-1 ● CISPR 11 Group 1, class A ● AS/NZS CISPR 11 ● ICES/NMB-001 Complies with Australian standard and carries C-Tick mark. This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 du Canada. Safety Complies with European Low Voltage Directive and carries the CE-marking.
Appendix A Specifications Outline Diagram 272.6 mm 10.733 in. = airflow 16.9 mm 0.663 in. 425.6 mm 16.756 in. 23.5 mm 0.923 in. 17.7 mm 0.697 in. 182 177.0 mm 6.968 in.
Agilent N6705 DC Power Analyzer User’s Guide Appendix B SCPI Commands and Instrument Settings SCPI Command Summary .............................................................................. 184 This appendix gives the list of SCPI commands that are used to program the Agilent N6705 DC Power Analyzer. NOTE For complete details on programming the instrument using SCPI commands, refer to the Programmer’s Reference Help file included on the Agilent N6705 Product Reference CD.
Appendix B SCPI Commands SCPI Command Summary NOTE Some [optional] commands have been included for clarity. All settings commands have a corresponding query. Not all commands apply to all models.
SCPI Commands SCPI Command FETCh[:SCALar] (continued) :VOLTage [:DC]? (@chanlist) :ACDC? (@chanlist) :HIGH? (@chanlist) :LOW? (@chanlist) :MAXimum? (@chanlist) :MINimum? (@chanlist) :ARRay :CURRent [:DC]? (@chanlist) :POWer [:DC]? (@chanlist) :VOLTage [:DC]? (@chanlist) :DLOG :AHOur? (@chanlist) :CURRent [:DC]? (@chanlist) :MAXimum? (@chanlist) :MINimum? (@chanlist) :PTPeak? (@chanlist) :VOLTage [:DC]? (@chanlist) :MAXimum? (@chanlist) :MINimum? (@chanlist) :PTPeak? (@chanlist) :WHOur? (@chanlist) :ELOG
Appendix B SCPI Commands SCPI Command MEASure[:SCALar] (continued) :POWer [:DC]? (@chanlist) :VOLTage [:DC]? (@chanlist) :ACDC? (@chanlist) :HIGH? (@chanlist) :LOW? (@chanlist) :MAXimum? (@chanlist) :MINimum? (@chanlist) :ARRay :CURRent [:DC]? (@chanlist) :POWer [:DC]? (@chanlist) :VOLTage [:DC]? (@chanlist) MMEMory :ATTRibute? <“object”>, <“attribute”> :DATA [:DEFinite]? <“filename”> :DELete <“filename”> :EXPort :DLOG <“filename”> :LOAD :ARB:SEQuence <“filename”>, (@chanlist) :STORe :ARB:SEQuence <“filen
SCPI Commands SCPI Command SENSe :CURRent :CCOMpensate , (@chanlist) [:DC]:RANGe [:UPPer] , (@chanlist) :AUTO , (@chanlist) :DLOG :CURRent [:DC]:RANGe [:UPPer] , (@chanlist) :AUTO , (@chanlist) :FUNCtion :CURRent , (@chanlist) :MINMax :VOLTage , (@chanlist) :MARKer<1,2> :POINt :OFFSet :PERiod :TIME :TINTerval :VOLTage [:DC]:RANGe [:UPPer] , (@chanlist) :AUTO , (@chanlist) :ELOG :CURRent [:DC]:RANGe [:UPPer]
Appendix B SCPI Commands SCPI Command SENSe:HISTogram (continued) :FUNCtion :CURRent , (@chanlist) :SWEep :OFFSet :POINts , (@chanlist) :POINts , (@chanlist) :TINTerval , (@chanlist) :RESolution RES20 | RES40, (@chanlist) :VOLTage [:DC]:RANGe [:UPPer] , (@chanlist) :AUTO , (@chanlist) :WINDow [:TYPE] HANNing | RECTangular, (@chanlist) [SOURce:]ARB :COUNt | INFinity, (@chanlist) :CURRent | :VOLTage :CDWell [:LEVel] < NRf+> {,}, (@chanlist) :DWELl < NRf+>, (@c
SCPI Commands SCPI Command [SOURce:]ARB (continued) :STAircase :END [:LEVel] < NRf+>, (@chanlist) :TIMe < NRf+>, (@chanlist) :NSTeps < NRf+>, (@chanlist) :STARt [:LEVel] < NRf+>, (@chanlist) :TIMe < NRf+>, (@chanlist) :TIMe , (@chanlist) :STEP :END [:LEVel] < NRf+>, (@chanlist) :STARt [:LEVel] < NRf+>, (@chanlistl) :TIMe < NRf+>, (@chanlist) :TRAPezoid :END :TIMe < NRf+>, (@chanlist) :FTIMe < NRf+>, (@chanlist) :RTIMe < NRf+>, (@chanlist) :STARt [:LEVel] < NRf+>, (@chanlist) :TIMe < NRf+>, (@chanlist)
Appendix B SCPI Commands SCPI Command [SOURce:]CURRent [:LEVel] [:IMMediate][:AMPLitude] , (@chanlist) :TRIGgered [:AMPLitude] , (@chanlist) :LIMit [:POSitive] [:IMMediate][:AMPLitude] , (@chanlist) :COUPle , (@chanlist) :NEGative [:IMMediate][:AMPLitude] , (@chanlist) :MODE FIXed | STEP | LIST | ARB, (@chanlist) :PROTection :DELay [:TIME] (@chanlist) :STARt SCHange | CCTRans, (@chanlist) :STATe , (@chanlist) :RANGe , (@chanlist) :SLEW [:IMMediate] |
SCPI Commands SCPI Command [SOURce:]LIST:TOUTput (continued) :EOSTep [:DATA] {,}, (@chanlist) :POINts? (@chanlist) :VOLTage [:LEVel] {,}, (@chanlist) :POINts? (@chanlist) Appendix B Description Generate triggers at the End Of STep Returns the number of EOST list points Sets the voltage list Returns the number of voltage list points [SOURce:]POWer :LIMit , (@chanlist) Sets the power limit on output channels [SOURce:]RESistance [:LEVel] [:IMMediate][:AMPLitude] , (@ch
Appendix B SCPI Commands SCPI Command Description STATus (continued) :QUEStionable [:EVENt]? (@chanlist) :CONDition? (@chanlist) :ENABle , (@chanlist) :NTRansition , (@chanlist) :PTRansition , (@chanlist) Returns the value of the questionable event register Returns the value of the questionable condition register Enables specific bits in the event register Sets the negative transition filter Sets the positive transition filter SYSTem :CHANnel [:COUNt]? :MODel? (@chanlist) :OPTion? (@cha
SCPI Commands SCPI Command Appendix B Description TRIGger:DLOG (continued) :ELOG [:IMMediate] (@chanlist) :SOURce , (@chanlist) Triggers the external data logger immediately Sets the external data logger trigger source = BUS, EXTernal, IMMediate, PIN :HISTogram [:IMMediate] (@chanlist) :SOURce , (@chanlist) Triggers the current histogram immediately (N6781A, N6782A) Sets the current histogram trigger source (N6781A, N6782A) = BUS, EXTernal, IMMediate, PIN :TRAN
Appendix B SCPI Commands Power-On Settings These settings are set by the Reset (*RST) command ARB:COUNt 1 ARB:FUNCtion:SHAPe NONE ARB:CURRent|VOLTage:CDWell:DWELl 0.
SCPI Commands Appendix B These settings are set by the Reset (*RST) command OUTPut:PMODe VOLT SENSe:SWEep:POINts 1024 or 4883 OUTPut:PROTection:COUPle OFF SENSe:SWEep:OFFSet:POINts 0 OUTPut:PROTection:DELay 0.02 SENSe:SWEep:TINTerval 20.
Appendix B SCPI Commands Agilent N678xA SMU Initial Emulation Mode Settings The following tables document the emulation mode settings that are applied when the emulation mode is selected. Emulation mode settings are not saved. 4 Quadrant Power Supply 1 2 Quadrant Power Supply 1 Quadrant Power Supply Priority mode voltage current voltage current voltage current Quadrants 4 4 2 2 1 1 Voltage range 6.12 V n/a 6.12 V n/a 6.12 V n/a Voltage 0V n/a 0V n/a 0V n/a I limit range 3.
Agilent N6705 DC Power Analyzer User’s Guide Appendix C Using the Digital Port Configuring the Digital Port ........................................................................... 198 A Digital Control Port consisting of seven I/O pins is provided to access various control functions. Each pin is user-configurable.
Appendix C Using the Digital Port Configuring the Digital Port The following table describes the possible pin configurations for the digital port functions. For a complete description of the electrical characteristics of the digital port, refer to Appendix A.
Using the Digital Port Appendix C From the front panel: To configure the bi-directional digital I/O, press the Menu key, scroll down and select the Utilities item, then select Digital I/O. Then press Enter. Select the pin you wish to configure from the Pin dropdown list. Select the Digital I/O function from the Function dropdown list. Select and program the remaining pins in the same manner. Configure the polarity for each pin by selecting the Polarity dropdown menu. Select either Positive or Negative.
Appendix C Using the Digital Port Digital Input Each of the seven pins can be configured as digital input only. The ground reference for the input pins is Signal Common on pin 8. The In field of the Digital I/O window reflects the condition of the external signal that is applied to the pin. The pin state is not affected by the value of the binary output word.
Using the Digital Port Appendix C From the front panel: To configure the digital input function, press the Menu key, scroll down and select the Utilities item, then select Digital I/O. Then press Enter. The Digital I/O window will appear as previously shown under “Bi-directional Digital I/O”. Select pin 1 from the Pin dropdown list. Select the Fault Out function for the pin the from the Function dropdown list. Configure the polarity for the pin by selecting the Polarity dropdown menu.
Appendix C Using the Digital Port From the remote interface: To configure the Inhibit In function for pin 3: DIG:PIN3:FUNC INH To configure the pin polarity to positive for pin 3: DIG:PIN3:POL POS Fault/Inhibit Operating Mode After you have configured pin 3 as the remote inhibit input, you must also configure the operating mode of the inhibit signal. From the front panel: Press the Settings key to access the Source Settings window. Navigate to and select Protection, then Advanced. Then press Enter.
Using the Digital Port Appendix C Fault/Inhibit System Protection As shown in the following figure, when the Fault outputs and Inhibit inputs of several mainframes are daisy-chained, an internal fault condition in one of the mainframes will disable all of them without intervention by either the controller or external circuitry. Note that when using the Fault/Inhibit signals in this manner, both signals must be set to the same polarity.
Appendix C Using the Digital Port To input an external trigger signal, you can apply either a negativegoing or a positive-going pulse to the designated trigger input pin. The trigger latency is 5 microseconds. The minimum pulse width is 2 microseconds. The pin’s polarity setting determines which edge generates a trigger-in event. Positive means a rising edge and Negative means a falling edge.
Using the Digital Port Appendix C From the front panel: To configure the trigger input function, press the Menu key, scroll down and select the Utilities item, then select Digital I/O. Then press Enter. The Digital I/O window will appear as previously shown under “Bi-directional Digital I/O”. Select the pin you wish to configure from the Pin dropdown list. Select the Trigger Out function for the pin the from the Function dropdown list.
Appendix C Using the Digital Port N6705A #1 1 2 3 4 5 6 N6705A #2 7 I 1 2 3 4 5 6 N6705A #3 7 I 1 2 3 4 5 6 7 I On Couple Off Couple I From the front panel: To configure the digital connector pins, press the Menu key, scroll down and select the Utilities item, then select Digital I/O. Then press Enter. Select pin 6 from the Pin dropdown list. Then select the On Couple function for the pin the from the Function dropdown list. Select pin 7 from the Pin dropdown list.
Index ---- ................................................................................. 19, 162 A administrator password ................................................. 147 airflow ................................................................... 28, 32, 182 Arb Run/Stop ................................................................... 100 arbitrary waveform ............................................................ 75 constant-dwell .........................................................
Index dimensions ....................................................................... 182 disk management ............................................................ 149 domain name ...................................................................... 52 downprogramming .......................................................... 155 dynamic current correction ........................................... 172 E earth ground .......................................................................
Index license, software ............................................................. 150 live ...................................................................................... 202 load..................................................................................... 139 connections ................................................................... 33 wire length ............................................................... 34, 35 wire size.........................................................
Index settings ......................................................................... 194 state .............................................................................. 143 print date ............................................................................... 2 priority mode .................................................................... 158 Prot ................................................................................. 18, 72 protection, clear ......................................
