RIGOL User’s Guide DM3068 Digital Multimeter Oct. 2012 RIGOL Technologies, Inc.
RIGOL Guaranty and Declaration Copyright © 2010 RIGOL Technologies, Inc. All Rights Reserved. Trademark Information RIGOL is a registered trademark of RIGOL Technologies, Inc. Publication Number UGC06104-1110 Notices RIGOL products are protected by patent law in and outside of P.R.C. RIGOL reserves the right to modify or change parts of or all the specifications and pricing policies at company’s sole decision. Information in this publication replaces all previously corresponding material.
RIGOL Safety Requirement General Safety Summary Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injuries or damages to the instrument and any product connected to it. To prevent potential hazards, please use the instrument only specified by this manual. Use Proper Power Cord. Only the power cord designed for the instrument and authorized by local country could be used. Ground The Instrument.
RIGOL Do Not Operate With Suspected Failures. If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations. Any maintenance, adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel. Keep Well Ventilation. Inadequate ventilation may cause increasing of temperature or damages to the device. So please keep well ventilated and inspect the intake and fan regularly.
RIGOL Input Terminal Protection Limit. The protection limit applies to input terminals: 1． Main input (HI and LO) terminals. HI and LO terminals are used for Voltage, Resistance, Capacitance, Continuity, Frequency and Diodes measurements and should be used under the following two conditions: 1) HI-LO protection limit: at most 1000 VDC or 750 VAC, this is also the maximum measurable voltage. The limit can be expressed as 1000 Vpk.
RIGOL 2) Only use 10 A and LO terminals for measurements when the measured current AC+DC RMS value goes within 200 mA and 10 A. 3) Select a proper current input terminal according to the estimated current magnitude before connect the multimeter to AC supplies if you want to use current measurement. 4) The current into 10 A cannot exceed 13.
RIGOL Safety Terms and Symbols Terms in this Manual. These terms may appear in this manual: WARNING Warning statements indicate the conditions or practices that could result in injury or loss of life. CAUTION Caution statements indicate the conditions or practices that could result in damage to this product or other property. CAT I (1000V) IEC Measurement Category I. The maximum voltage can be measured by HI-LO terminal is 1000 Vpk. CAT II (300V) IEC Measurement Category II.
RIGOL General Care and Cleaning General Care: Do not store or leave the instrument in where the instrument will be exposed to direct sunlight for long periods of time. Cleaning: Clean the instrument regularly according to its operating conditions. To clean the exterior surface, perform the following steps: 1. Disconnect the instrument from all power sources. 2. Clean the loose dust on the outside of the instrument with a lint- free cloth (with a mild detergent and water).
RIGOL Environmental Considerations The following symbol indicates that this product complies with the applicable European Union requirements according to Directives 2002/96/EC on waste electrical and electronic equipment (WEEE) and batteries. Product End-of-Life Handling The equipment may contain substances that could be harmful to the environment or human health.
RIGOL DM3068 Overview DM3068 is a 6½ digits, dual display digital multimeter. It is a perfect combination of basic measurement functions, various math operations as well as any sensor measurement and can fulfill users’ requirements for high precision, various functions and auto measurement. DM3068 provides high-resolution 256 x 64 monochrome LCD, easy-to-use keypad layout and key backlight as well as operation prompts.
RIGOL X Two power management modes: enable or disable the front panel power switch. Enable to store 10 groups of system configurations and 5 groups of sensor configurations in internal memory and recall them when necessary. Configuration clone: back up all the instrument configurations in a USB storage device or clone the configurations to other DM3068. Provide English/Chinese menus and built-in help system. Powerful remote control and any sensor editing software.
RIGOL Document Overview Chapter 1 Quick Start This chapter guides users to quicky get familiar with the front and rear panels, user interface and measurement connections of the multimeter. Chapter 2 Front-panel Operations This chapter introduces how to use the functions of the multimeter from the front panel. Chapter 3 Remote Control This chapter introduces how to control the multimeter remotely.
RIGOL Operation step: “” is used to indicate operation steps. For example, “ pressing and then pressing REL.
RIGOL Contents Guaranty and Declaration .......................................................................... I Safety Requirement ................................................................................. II General Safety Summary............................................................................ II Safety Terms and Symbols .........................................................................VI General Care and Cleaning .............................................................
RIGOL To Measure Resistance .................................................................... 2-14 To Measure Capacitance .................................................................. 2-17 To Measure Continuity..................................................................... 2-19 To Measure Diode ........................................................................... 2-21 To Measure Frequency and Period .................................................... 2-23 Any Sensor Measurement .......
RIGOL To Perform the Self-Test .................................................................. 2-81 Chapter 3 Remote Control ................................................................... 3-1 Web Control ............................................................................................ 3-2 Command Control ................................................................................... 3-5 Remote Control via USB ....................................................................
Chapter 1 Quick Start RIGOL Chapter 1 Quick Start This chapter guides users to quicky get familar with the front and rear panles, user interface and measurement connections of the multimeter.
RIGOL Chapter 1 Quick Start General Inspection 1． Inspect the shipping container for damage Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the instrument has passed both electrical and mechanical tests. The consigner or carrier shall be liable for the damage to the instrument resulting from shipment. RIGOL would not be responsible for free maintenance/rework or replacement of the unit.
RIGOL Chapter 1 Quick Start Handle Adjustment To adjust the handle position of the multimeter, grip the handle by both sides and pull outward, then rotate the handle to a desired position, see figure below.
RIGOL Chapter 1 Quick Start Appearance and Dimensions 231.6 107.0 Figure 1-3 Front View Unit: mm 290.
RIGOL Chapter 1 Quick Start Front Panel 1.USB Host 2.LCD 5.Power Button 3.Auto Trigger/Reading Hold 4.Single Trigger/Local Mode 7. Menu Operation Keys 6. Measurement Function Keys 9.Range /Direction Keys 8.Advanced Operation Menus 10.Signal Input Terminals Figure 1-5 Front Panel Overview 1. USB Host USB storage device can be connected via this interface. By using this interface, the system configuration or measurement data can be stored into USB storage device and be recalled when required. 2.
RIGOL Chapter 1 Quick Start Reading Hold: the backlight blinks; the multimeter obtains a stable reading and displays it on the screen. 4. Single Trigger/Local Mode When the multimeter is in local mode, press this key to select single trigger; the multimeter generates one or the specified number (S No.) of readings and then waits for the next trigger. When the instrument is in remote mode, press this key to switch to local mode. 5. Power Button Press the button to turn on or off the multimeter.
RIGOL Chapter 1 Quick Start 7. Menu Operation Keys Press any softkey to activate the corresponding menu. 8. Advanced Operation Menus Set all the measurement parameters. Perform math operations (statistic, P/F, dBm, dB, REL) on the measurement results and provide real-time tendency graph and histogram display.
RIGOL Chapter 1 Quick Start 10. Signal Input Terminals The measured signal (device) will be connected into the multimeter through these terminals. Different measurement objects have different connection methods. For details, please refer to “Measurement Connections”.
RIGOL Chapter 1 Quick Start Rear Panel 1.Current Input Fuse 2. LAN 3.GPIB 6.Ext Trig 5.VMC 4.Power Socket 8.RS232 7.USB Device 10.Voltage Selector 9.Power Fuse 11.Power Switch Figure 1-6 Rear Panel Overview 1. Current Input Fuse The multimeter uses two kinds of fuses for input protections of small and large current ranges. The internal fuse of the multimeter provides 10 A maximum input protection for the large current range and when the input current exceeds 13.
RIGOL Chapter 1 Quick Start 3) Place a new specified fuse. 4) Reinstall the fuse seat into the slot. Note: the large current fuse stands inside the multimeter and is not allowed to be replaced by users themselves. If a new fuse is required, please contact RIGOL. 2. LAN Through this interface, the multimeter can be connected to the network for remote control.
RIGOL Chapter 1 Quick Start 6. Ext Trig Trigger the multimeter by connecting a trigger pulse through the [Ext Trig] connector. Note the external trigger source must be selected ( Ext). Source 7. USB Device Connect the PC through this interface. You can use SCPI commands or PC software to control DM3068 remotely. 8. RS232 Connect the PC through this interface. You can use SCPI commands or PC software to control DM3068 remotely. You can also use this interface to output the P/F test result. 9.
RIGOL Chapter 1 Quick Start WARNING In order to avoid electric shock or fire, please just use the specified fuse and make sure the fuse holder is not short-circuited. 10. Voltage Selector Select a proper voltage scale (115 V or 230 V) according to the AC supply used. 11. Power Switch Connect or disconnect the AC supply. If the power button at the front panel is disabled ( System Cfg Switch OFF), turning on this switch will directly start up the multimeter.
RIGOL Chapter 1 Quick Start User Interface Figure 1-9 User Interface (Single Display) Math Measurement parameter Range REL on Main Display Function Run Indication Main Display Reading STA MAX MIN AVG P/F dBm dB LXI: LXI connection Mode succeeds Rmt: Remote Control Local: Local Control : USB Storage Vice Display Reading Vice Display Function Operation Menus Figure 1-10 User Interface (Dual Display) User’s Guide for DM3068 1-13
RIGOL Chapter 1 Quick Start To Use the Multimeter for the First Time Start your multimeter according to the following steps when using it for the first time. 1． Connect the AC Power Supply 1) Select an appropriate voltage scale according to the present AC power using the voltage selector at the rear panel. 2) Connect the multimeter to the AC power supply using the power cord provided in the accessories.
RIGOL Chapter 1 Quick Start Measurement Connections DM3068 is designed with many measurement functions. After selecting the desired measurement function, please connect the signal (device) under test to the multimeter according to the method below. Do not discretionarily switch the measurement function when measuring as it may cause damage to the multimeter. For example, when the test leads are connected to the related current terminals, AC voltage measurement should not be taken.
RIGOL 2. 3. Chapter 1 Quick Start Select a proper current input terminal according to the estimated current magnitude before connecting the multimeter to AC power supply if you want to use current measurement. Only use 10 A and LO terminals for measurements when the AC+DC RMS value of the current under measurement goes within 200 mA and 10 A.
RIGOL Chapter 1 Quick Start Any Sensor Measurement (For DCV, 2WR, FREQ, TC, 2W-RTD and Frequency/Period Measurement 2W-THERM sensors) + + Sensor AC Signal - - Any Sensor Measurement Any Sensor Measurement (For 4WR, 4W-RTD and 4W-THERM (For DCI sensor*) sensors) + Sensor - + Sensor Note*: before setting the parameters for DCI sensor when using it, please connect it according to the figure above and press User’s Guide for DM3068 mA.
RIGOL Chapter 1 Quick Start To Use the Built-in Help System The built-in help system of DM3068 provides using help for all the front panel keys and menu softkeys as well as the using method of the built-in help. Press enter the following interface. to Figure 1-11 Help Topics Table 1-1 Help Menu Menu Description Select Go to the selected help topic Cursor up Cursor down Page up Page down Go to the previous menu Help Topics 1. The method of the test leads. 2. Common measurement. 3. Math. 4. Sensor. 5.
RIGOL Chapter 1 Quick Start To Use the Rack Mount Kit DM3068 can be mounted into a standard 19-inch rack cabinet. Before the installation, please remove the package and cushioning material of the multimeter. Kit Parts List Table 1-2 Kit Parts List No.
RIGOL Chapter 1 Quick Start 2-1 2-2 2-3 Installation Tool PH2 cross screwdriver is recommended. Installation Space The 1-20 machine cabinet should fulfill the following requirements: The machine cabinet should be a standard 19-inch one. At least a 3U space (133.5 mm) should be provided by the machine cabinet. The depth inside the machine cabinet should not be less than 400 mm.
Chapter 1 Quick Start RIGOL Dimensions of the mounted instrument: User’s Guide for DM3068 1-21
RIGOL Chapter 1 Quick Start Installation Procedures This operation should be executed only by authorized personnel. Improper operations may cause instrument damage or incorrect installation of the instrument into the machine cabinet. 1. Remove the handle: grip the handle by both sides and pull outward; then, pull upward. 2. Install left and right plates: aim the detents of right and left plates at the openings on support board and insert respectively, then fix them using eight M4 screws.
Chapter 1 Quick Start RIGOL 3. Place the instrument: aim the parallels at the corresponding openings and then put the multimeter onto the support board. 4. Fix the instrument: fasten or fit the instrument tightly into the support board using two fixed fingers in connection with four M4 screws.
RIGOL Chapter 1 Quick Start 5. Mount the front panel: aim the front panel opening at the front of instrument and fix them using four M4 screws. 6. Load into machine cabinet: mount the rack with instrument onto a standard 19-inch machine cabinet using four M6 screws and four M6 square nuts, respectively. 7. Post-installation note: the rack holds a height of 3U. Holes pointed out by the arrows are the installation holes and should be aligned with when installing.
Chapter 2 Front Panel Operations RIGOL Chapter 2 Front Panel Operations This chapter introduces how to use the functions of the multimeter from the front panel.
RIGOL Chapter 2 Front Panel Operations To Set the Range DM3068 provides auto and manual range selecting modes. In auto mode, the multimeter selects a proper range automatically according to the input signal; in manual mode, you can use the front panel key or menu key to set the range. The auto mode can bring a lot of convenience for users while the manual mode provides higher reading precision.
RIGOL Chapter 2 Front Panel Operations To Set the Resolution DM3068 holds reading resolutions of 3½, 4½, 5½ and 6½ digits. It automatically selects a reading resolution according to the current measurement settings. The greater the resolution is, the higher the measurement accuracy will be; the lower the resolution is, the faster the measurement will be. Different measurement function has different resolution. 1.
RIGOL Chapter 2 Front Panel Operations Table 2-3 Relationship between the resolution and gate time Resolution Gate Time Status bar display 1 1 ms 1 ms 1 10 ms 10 ms 1 100 ms 100 ms 1 1s 1s 6 /2 6 /2 6 /2 6 /2 4. The resolution is 3½ in CAP measurement. 5. The instrument always displays three digits after the decimal point in SENSOR measurement. 6. The instrument always displays one digit after the decimal point in CONT measurement. 7. The resolution is 5½ in DIODE measurement.
Chapter 2 Front Panel Operations RIGOL Basic Measurement Functions To Measure DC Voltage Range: 200 mV, 2 V, 20 V, 200 V, 1000 V Max Resolution: 100 nV (in the range of 200 mV) Input Protection: a 1000 V protection is available in all ranges and a 10% overrange for all ranges except 1000 V range. If the reading exceeds 1050 V in 1000 V range, “OVER LOAD” will be displayed. Operating Steps: 1. Enable the DCV measurement at the front panel to enter the following interface.
RIGOL 5. Chapter 2 Front Panel Operations Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the measurement result on the screen. 6. Make math operation (advanced) You can perform math operation (STA, P/F, dBm, dB and REL) on every DCV measurement reading. For REL operation, the multimeter subtracts the pre-specified value of REL operation from the actual measurement result and displays the result.
RIGOL Chapter 2 Front Panel Operations To Measure AC Voltage Range: 200 mV, 2 V, 20 V, 200 V, 750 V Max Resolution: 100 nV (in the range of 200 mV) Input Protection: a 750 V input protection is available in all ranges and a 10% overrange is available on all ranges except 750 V. If the reading exceeds 787.5 V in 750 V range, “OVER LOAD” will be displayed. Operating Steps: 1. Enable the ACV measurement Press at the front panel to enter the following interface. 2.
RIGOL Chapter 2 Front Panel Operations shown in the figure below. 6. Make math operation (advanced) Users can perform math operation (STA, P/F, dBm, dB and REL) on each ACV measurement reading. For REL operation, the multimeter subtracts the pre-specified value of REL from the actual measurement result and displays the result. For details, please refer to “Math Operations”. 7. View history data Up to 5000 latest measured data can be viewed. Press History to enter the following interface.
Chapter 2 Front Panel Operations RIGOL To Measure DC Current Range: 200 μA, 2 mA, 20 mA, 200 mA, 2 A, 10 A Max Resolution: 0.1 nA (in 200 μA range) Input Protection: the multimeter uses two kinds of fuses for current protection: the small current input fuse (500 mA high speed fuse) and the built-in large current input fuse (10 A). 10% overrange is available on all ranges except 10 A. If the reading exceeds 10.5 A in 10 A range, “OVER LOAD” will be displayed.
RIGOL Chapter 2 Front Panel Operations 5. Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen. 6. Make math operation (advanced) Users can perform math operation (STA, P/F, and REL) on each DCI measurement reading. For REL operation, the multimeter subtracts the pre-specified value of REL from the actual measurement result and displays the result. For details, please refer to “Math Operations” 7.
Chapter 2 Front Panel Operations RIGOL To Measure AC Current Range: 200 μA, 2 mA, 20 mA, 200 mA, 2 A, 10 A Max Resolution: 0.1 nA (in 200 μA range) Input Protection: the multimeter uses two kinds of fuses for input protection: the small current input fuse (500 mA high speed fuse) at the rear panel and the built-in large current input fuse (10 A). 10% overrange is available on all ranges except 10 A. If the reading exceeds 10.5 A in 10 A range, “OVER LOAD” will be displayed.
RIGOL Chapter 2 Front Panel Operations 5. Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen. For AC signal, users can also measure the frequency/period of the signal. During the ACI measurement, press and then press as shown in the figure on the next page. and the measurement result is 6. Make math operation (advanced) Users can perform math operation (STA, P/F, and REL) on each ACI measurement reading.
Chapter 2 Front Panel Operations RIGOL 8. Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result. Press any softkey again to display the operation menus.
RIGOL Chapter 2 Front Panel Operations To Measure Resistance Range: 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 1 MΩ, 10 MΩ, 100 MΩ Max Resolution: 100 μΩ (in 200 Ω range) Input Protection: a 1000 V input protection is available in all ranges. 10% overrange is available on all ranges. DM3068 provides 2-wire (2WR) and 4-wire (4WR) resistance measurements.
Chapter 2 Front Panel Operations RIGOL 4. Set the measurement parameters (Optional) The 2WR/4WR measurement allows users to configure the integration time, auto zero and offset compensation. For details, please refer to “Measurement Configuration”. 5. Read the measurement value The multimeter measures the measured resistance according to the current measurement settings and displays the value on the screen. 6.
RIGOL Chapter 2 Front Panel Operations minimum, average and standard deviation. Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form. Press HistoG to view the histogram of the average (AVG) and standard deviation (SDEV). Press Update to update the “Records”, “Maximum”, “Minimum”, “Average” and “SDEV” under Info and the display in List and HistoG.
Chapter 2 Front Panel Operations RIGOL To Measure Capacitance Range: 2 nF, 20 nF, 200 nF, 2 μF, 20 μF , 200 μF, 2 mF, 20 mF, 100 mF Max Resolution: 1 pF (in 2 nF range) Input Protection: a 1000 V input protection is available in all ranges. 10% overrange is available on all ranges. Operating Steps: 1. Enable the CAP measurement Press at the front panel to enter the following interface. 2. Make connection Connect the test lead with the measured capacitance by referring to “Measurement Connections”.
RIGOL Chapter 2 Front Panel Operations pre-specified value of REL from the actual measurement result and displays the result. For details, please refer to “Math Operations”. 6. View history data Up to 5000 latest measured data can be viewed. Press History to enter the following interface. Press Info and use the up and down direction keys to view the measurement item, measurement range, number of values, maximum, minimum, average and standard deviation.
Chapter 2 Front Panel Operations RIGOL To Measure Continuity Test Current Source: 1 mA Max Resolution: 0.1 Ω (the range is fixed at 2 kΩ) Input Protection: 1000 V Input Protection. Open-circuit Voltage: < 8 V Beep Threshold (short-circuit resistance): from 1 Ω to 2000 Ω Operating Steps: 1. Enable the CONT measurement Press at the front panel to enter the following interface. 2. Make connection Connect the test lead with the measured circuit by referring to “Measurement Connections”. 3.
RIGOL 5. 2-20 Chapter 2 Front Panel Operations Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result. Press any softkey again to display the operation menus.
Chapter 2 Front Panel Operations RIGOL To Measure Diode Test Current Source: 1 mA, 100 μA, 10 μA, 2 μA, 200 nA Voltage Measurement Range: -0.2 V ~2.2 V, -0.2 V ~4.2 V, -0.2 V ~4.8 V, -0.2 V ~5.2 V, -0.2 V ~5.5 V Max Resolution: 100 μV Input Protection: 1000 V Input Protection. Open-circuit Voltage: < 8 V This function measures the forward voltage drop on the diode.
RIGOL 5. Chapter 2 Front Panel Operations Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result. Press any softkey again to display the operation menus. Remark*: this function is added since the 01.01.00.01.07.00 version but only the performance of the 1 mA current source is guaranteed.
Chapter 2 Front Panel Operations RIGOL To Measure Frequency and Period Frequency (Period) Range: from 3 Hz to 1 MHz (from 0.33 s to 1 μs) Input Signal Range: 200 mV, 2 V, 20 V, 200 V, 750 V Input Protection: a 750 V input protection is available in all ranges. To obtain the measured signal’s frequency and period, directly press or use the secondary measurement function during voltage or current measurment. Operating Steps: 1.
RIGOL 5. Chapter 2 Front Panel Operations Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen. Besides, the multimeter can measure the voltage or current of the signal during the or and then press and frequency/period measurement. Press respectively; the measurement results are as shown in the figures below. 6.
Chapter 2 Front Panel Operations 8. RIGOL Press HistoG to view the histogram of the average (AVG) and standard deviation (SDEV). Press Update to update the “Records”, “Maximum”, “Minimum”, “Average” and “SDEV” under Info and the display in List and HistoG. Press Save to enter the store and recall interface; at this point, is illuminated. You can save the current measurement data into internal memory or external USB storage device. For details, please refer to the introduction in “Save and Recall”.
RIGOL Chapter 2 Front Panel Operations Any Sensor Measurement This function enables you to easily convert a measured physical quantity (such as pressure, flow rate and temperature) into a quantity that can be easily measured (such as voltage, current or resistance). By pre-inputting a response curve, the multimeter converts and amends the data according to the internal arithmetic and displays the physical quantity measured on the screen.
Chapter 2 Front Panel Operations RIGOL The following part introduces how to create a sensor configuration file in details. For DCV, DCI, 2WR, 4WR or FREQ sensor, you can define a fitting curve. Since the temperature sensor (TC, RTD, THERM) converts the electrical signal (such as voltage or resistance) to temperature using the software conversion program inside the instrument, you can directly choose a desired temperature sensor.
RIGOL Chapter 2 Front Panel Operations User-defined Sensor Press New User to enter the following interface. Prpty: set the sensor name, type and unit. Define: define the response curve of the sensor. 1. Define the Sensor Name Press Prpty Name to enter the following interface and enter a name that is easy to understand for the newly defined sensor. The name should be within 9 characters.
RIGOL Chapter 2 Front Panel Operations Del: delete the character where the cursor locates. Done: finish the name input. : return to the upper-level menu. 2. Specify the Sensor Type Press Prpty Type to enter the following interface and select the type of the to return to the electric signal to be converted by the sensor. Press upper-level menu. Note: if DCI is selected, please press operations. mA before the following 3.
RIGOL Chapter 2 Front Panel Operations Press Corrsp and enter the data of the corresponding physical quantity using the direction keys. The unit to be used is the one (℃) you have set in step 3. For different type of sensor, the data range available is different.
Chapter 2 Front Panel Operations RIGOL Line: the calculated curve is point-point tangential path having no curvature. It applies to sensors having step-variation in the data or having variation based on straight slope and better linearity within a certain area. This arithmetic requires that the data segment contains at least 2 groups of reference data. Curve: the calculated curve is an approximate result that has a certain curvature. It applies to data has unfavorable linearity.
RIGOL Chapter 2 Front Panel Operations Press Save and enter a desired file name by referring to “Name/File Name Input Method”, such as “Sens1”. When finished, press Done to save the current sensor configuration into the internal memory (C:\) or external USB storage device (A:\) with the specified filename. Press and returns to User interface. Press Apply, the multimeter starts measuring according to the current shown on the configurations.
Chapter 2 Front Panel Operations RIGOL Temperature sensor DM3068 can directly measure the temperature using TC (Thermocouple), RTD (Resistance Temperature Detector) and THERM (Thermistor) sensors. For different temperature sensor, the conversion form and conversion characteristics of temperature and electrical signal are different. For different models of the same type of sensor, the characteristic parameters and temperature-electrical signal corresponding relations are different.
RIGOL Chapter 2 Front Panel Operations TC The TC (thermocouple) is one of the most commonly used industrial temperature detection device. It converts the temperature value into voltage reading, and has a very large temperature measurement range. The common thermocouples are B (Pt Rh 30- Pt Rh6), E (NI CR-WRCK), J (Fe-WRCK), K (NI CR-NiSi), N (NiCrNi-NiSi), R (Pt Rh13 -Pt), S (Pt Rh10-Pt) and T (Cu-WRCK).
Chapter 2 Front Panel Operations RIGOL RTD RTD is a temperature detector commonly used in medium-low temperature range. It features in high measurement accuracy and stable performance. It measures the temperature depending on the changing resistance of the measured substance with the temperature. The multimeter will display the temperature corresponding to the resistance when the resistance changes. This kind of sensor has good linearity.
RIGOL Chapter 2 Front Panel Operations THERM The THERM (thermistor) converts the temperature variation information into resistance variation information. It is especially sensitive to temperature. In this measurement, the multimeter adopts Steinhart-Hart approximate arithmetic and converts the resistance signal from the temperature sensor into the related temperature for displaying. To use the THERM sensor, you need to set the resistance parameter of the multimeter and select the connection mode. 1.
RIGOL Chapter 2 Front Panel Operations Preset Mode Preset mode applies to production lines for avoiding misoperations. Press in any mode to enter the following interface, from which you can choose a preset configuration from up to 10 groups. Note the configurations in this interface correspond to the 10 groups of system configurations in the internal memory ( Type Sys Setting).
RIGOL Chapter 2 Front Panel Operations Secondary Function Key The secondary function key is used to enable the dual display mode, quickly store the current instrument settings in co-ordination with the REL setting interface. 1. and quickly enter Turn On the Dual Display This mode enables you to simultaneously measure both voltage or current and frequency of an ac signal. The voltage or current value is shown on the main display, while the frequency is shown on the vice display.
RIGOL Chapter 2 Front Panel Operations “Setn”. You can also use to perform the operation; for details, please refer to “Save and Recall”. 3. Quickly Enter REL Setting Interface In addition to button, you can press REL in common measurement interface to directly enter the REL setting interface.
RIGOL Chapter 2 Front Panel Operations Measurement Configuration Most measurement parameters are user-defined. Changing a measurement parameter will change the measurement precision and speed as well as the input impedance. An appropriate measurement parameter based on the actual application will ensure faster measurement or higher measurement precision. The default measurement configurations of the multimeter can ensure the accuracy of the measurement results in most cases.
RIGOL Chapter 2 Front Panel Operations Integration Time Integration time is the period during which the multimeter’s analog-to-digital (A/D) converter samples the input signal for a measurement. The longer the integration time is, the slower the measurement speed will be and the higher the resolution will be; the shorter the integration time is, the faster the measurement will be and the lower the resolution will be. The integration time applies to DCV, DCI, 2WR and 4WR measurements.
RIGOL Chapter 2 Front Panel Operations DC Impedance DC impedance applies to DCV measurement. The default is “10MΩ” and is stored in non-volatile memory. In the range of 200 mV, 2 V or 20 V, you can choose “>10GΩ” to reduce the loading error to the measured object caused by the multimeter (refer to “Loading Errors (DCV)”). The current selection is stored in volatile memory. In DCV measurement, press Res to enter the following interface. Press 10MΩ or >10GΩ to select the desired impedance.
Chapter 2 Front Panel Operations RIGOL Auto Zero Auto zero (Auto Zero) applies to DCV, DCI, 2WR and 4WR measurements. Press AZ to enter the following interface. ON: the multimeter internally disconnects the input signal and measured circuit after each measurement, and takes a zero reading.
RIGOL Chapter 2 Front Panel Operations Offset Compensation OC (Offset Comp) applies to resistance measurements in the range of 200 Ω, 2 kΩ and 20 kΩ. It eliminates the impact of small dc offset from test lead on measurement result. In 2WR or 4WR measurement, when the range is set to 200 Ω, 2 kΩ or 20 kΩ, press OC to enter the following interface.
RIGOL Chapter 2 Front Panel Operations AC Filter AC filter applies to ACV, ACI and FREQ/PERIOD measurements. It can optimize the low-frequency accuracy and minimize the AC settling time. DM3068 provides three types of AC filters (slow, medium and fast). The AC filter to be used is determined by the input signal frequency. Input Frequency AC Filter 3 Hz to 300 kHz Slow 20 Hz to 300 kHz Mid 200 Hz to 300 kHZ Fast In ACV, ACI or FREQ/PERIOD measurement, press following interface.
RIGOL Chapter 2 Front Panel Operations Short-Circuit Resistance This function only applies to continuity test. When the measured circuit has a resistance lower than the short-circuit resistance, the circuit is considered as connected, and the beeper sounds (if sound is on). The default short-circuit resistance is 10 Ω and the setting is stored in nonvolatile memory. When continuity test is enabled, press Conti to enter the following interface. Set a desired value using the direction keys.
RIGOL Chapter 2 Front Panel Operations Current Source Current source applies to the diode measurement function. The current selected is applied to the diode under test and the multimeter measures the voltage drop between the two ends of the diode to determine the polarity of the diode. Note: when measuring diode with relatively larger drain current, do not use the small current source (as the forward voltage drop measured might be too low to determine the polarity of the diode).
RIGOL Chapter 2 Front Panel Operations Gate Time Gate time (also called Aperture Time) applies to FREQ/PERIOD function. It decides the resolution of low-frequency measurement. The longer the gate time is, the higher the resolution of the low-frequency measurement is and the slower the measurement is, and vice versa. For details, please refer to “Specifications”. In FREQ/PERIOD measurement, press interface.
Chapter 2 Front Panel Operations RIGOL Math Operations DM3068 provides basic math operations (STA, P/F, dBm, dB and REL) for measurement results and displays the history data through tendency graph and histogram. In DCV, ACV, DCI, ACI, 2WR, 4WR, CAP, FREQ/PERIOD or SENSOR measurement, press to enter the following interface. Math: enter the math function setting interface. Trend: enter the tendency graph interface. HISTO: enter the histogram interface.
RIGOL Chapter 2 Front Panel Operations Math The multimeter provides 5 math functions: STA (MAX, MIN, AVG and ALL), P/F, dBm, dB and REL. Different measurement function allows different math functions as shown in the table below.
Chapter 2 Front Panel Operations RIGOL STA STA calculates the min, max, average and mean square deviation of readings during the measurement. Press STA to enter the following interface. After you choose a desired STA function, press ON to enable it and the multimeter enters the reading interface. The reading updates during the measurement. When MAX or MIN is selected, the multimeter takes the first reading as the maximum (or minimum) for displaying.
RIGOL Chapter 2 Front Panel Operations P/F P/F operation prompts the signal testing result (message display and beep) according to the specified high and low limit parameters and outputs a negative pulse through the RS232 interface at the rear panel. As shown in the figures below, the multimeter outputs a negative pulse from the Pin 1 (or Pin 9) if the test succeeds (or fails). +5 V 0V Negative Pulse Pin 1 Pin 9 Press P/F to enter the following interface.
Chapter 2 Front Panel Operations RIGOL If the current reading exceeds the high or low limit, the vice display shows “HI FAIL” or “LO FAIL” and the beeper sounds (beeper is on: Sound). System WARNING The P/F signal from pins 1 and 9 of RS232 is not compatible with the handshake signal (Carrier Detect and Ring Indicator) from standard RS232.
RIGOL Chapter 2 Front Panel Operations dBm dBm represents the absolute value of the power. The dBm operation calculates the power of the reference resistance according to the measured voltage. dBm = 10 x Log10 [ (Reading2 / RREF) / 1 mW ] Wherein, Reading denotes the measured voltage and RREF denotes the reference resistance. Press dBm to enter the following interface, from which you can use the direction keys to specify a reference resistance within 2 Ω and 8000 Ω.
Chapter 2 Front Panel Operations RIGOL dB dB represents the relative value which is used in the REL operation of dBm value. When enabled, the multimeter calculates the dBm value of the next reading and subtracts the preset dB from this value and then displays the result. dB = 10 x Log10 [ (Reading2 / RREF) / 1 mW ] - dB preset Wherein, Reading denotes the measured voltage and RREF denotes the reference resistance.
RIGOL Chapter 2 Front Panel Operations REL The reading displayed on the screen in REL operation is the difference between measured and preset values. Reading = measured value – preset value Users can pre-specify a REL value by any of the following way: 1) In basic measurement interface, press REL and the multimeter automatically uses the current measurement result as the preset value. 2) In basic measurement interface, press value setting interface.
RIGOL Chapter 2 Front Panel Operations Tendency Graph The multimeter draws tendency graph of the measured data through which users can directly observe the variation of the measured data without other supplementary means. This function is available for DCV, DCI, ACV, ACI, 2WR, 4WR, CAP, FREQ/PERIOD and SENSOR measurements. Press Trend to enter the following interface.
RIGOL 2-58 Chapter 2 Front Panel Operations measurement data. PrtScn: save the current tendency graph under the root directory of an external USB storage device in BMP format. Note: make sure that a USB storage device is correctly connected before using this function. Hide: hide the operation menu.
RIGOL Chapter 2 Front Panel Operations Histogram The real-time histogram displays the distribution situation of the measurement data from DCV, DCI, ACV, ACI, 2WR, and 4WR, CAP, FREQ/PERIOD and SENSOR. Note that different from the histogram in basic measurements ( HistoG), the histogram changes in real time. History Press HISTO to enter the following interface.
RIGOL Chapter 2 Front Panel Operations Trigger DM3068 provides four types of triggers: auto, single, external and level. It reads one or more specified number of readings (up to 50 000) each time a trigger signal is received and allows users to set the delay time between the start of trigger and reading. Press 2-60 at the front panel to enter the following interface. Source: choose a trigger source from Auto, Single, Ext, and Level. Hold: enable or disable the reading hold function.
RIGOL Chapter 2 Front Panel Operations To Select a Trigger Source Press Source to enter the following interface. The default is Auto. Auto Trigger: Press Auto and Done to enable the auto trigger. The backlight of at the front panel then turns on, and the multimeter continuously takes readings at the fastest possible speed according to the current configuration.
RIGOL Chapter 2 Front Panel Operations Reading Hold The multimeter captures stable reading and holds it on the screen when the reading hold function is enabled. The sensitivity range determines whether the reading is stable enough and can be displayed on the screen. This parameter is expressed in the form of reading percentage based on the current range. The multimeter will not capture and display new reading until three continuous readings exceed the selected sensitivity range.
Chapter 2 Front Panel Operations RIGOL To Set the Trigger Parameters Press Set to enter the following interface. S No. The multimeter takes the specified number of readings each time a trigger signal is received. Press S No. and enter a desired number within 1 and 50 000 using the direction keys. The default is 1. Delay: User can set the delay time between the trigger signal and the every sample (reading). Press Delay to enter the following interface.
RIGOL Chapter 2 Front Panel Operations Trigger Output Press VMC to enter the following interface. From this interface, you can enable or disable the trigger output. When it is enabled, the multimeter outputs a negative pulse from the [VM Comp] connector after each measurement.
Chapter 2 Front Panel Operations RIGOL Save and Recall The multimeter allows you to save the system configuration or measurement data into the internal memory or an external USB storage device and recall it when required. Press to enter the following interface. Disk: choose a desired storage location. “C:\” indicates the internal memory, while “A:\” indicates the external USB storage device. Type: choose a desired file type for storing or reading. Please refer to “Storage Type”.
RIGOL Chapter 2 Front Panel Operations Storage Type The multimeter can save and recall various types of files. MIRR_CFG: save all system and sensor configurations files from the internal memory into an external USB storage device in one file. The filename suffix is “.xmir”. SysSetting: save the current system configuration as an “.xmir” file. MeasData: save the current measurement data as an “.xdat” file. MEAS_CSV: save the current measurement result as a “.csv” file.
RIGOL Chapter 2 Front Panel Operations Internal Storage The internal memory (C:\) of the multimeter holds up to 10 groups of system configurations, 10 groups of measurement data, 5 groups of sensor configurations and 5 groups of sensor data. External Storage The external USB storage device (A:\) can save 7 types of files according to its capability.
RIGOL Chapter 2 Front Panel Operations To Save a File When the current storage disk allows specified file type, press Save to enter the following interface. The length of the file name should be within 9 characters. File Name Input Area Character Selecting Area Name/File Name input method Place the cursor to the File Name Input Area or Character Selecting Area using the up and down direction keys.
Chapter 2 Front Panel Operations RIGOL Utility Set the parameters of the system-related functions. Press to enter the following interface. Cmd: select a desired command system from those supported by DM3068. I/O: configure remote control interfaces such as LAN. System: set the system parameters such as language. T/C: execute self-test and view error information. Command Set DM3068 supports the command sets of RIGOL (DM3068), Agilent 34401A and Fluke 45.
RIGOL Chapter 2 Front Panel Operations Interface Configurations Users can control DM3068 remotely by configuring the remote interfaces (LAN, GPIB, USB (configuration-free) and RS232). Press 2-70 I/O to enter the following interface.
Chapter 2 Front Panel Operations RIGOL To Set the LAN The LAN configuration parameters conform to LXI-C standards. Before using this interface, connect the multimeter to the network using network cable. LAN SEL ~Line（25VA Max） Fuse 115 AC 100-120V 45-440Hz AC 250V T250mA 230 AC 200-240V 45-66Hz AC 250V T125mA The LAN parameter configuration interface is as shown in the figure below. 1. LAN Status Display the current network connection status (LAN Status).
RIGOL Chapter 2 Front Panel Operations Tip When all three IP configuration modes are ON, the priority order of the configuration mode is DHCP, AutoIP and ManualIP. At least one IP configuration mode should be ON. 1) DHCP The DHCP server from the current network assigns network parameters to the multimeter such as IP address. Press DHCP to turn on or off the DHCP configuration mode. 2) AutoIP The multimeter automatically acquires an IP address from 169.254.0.1 to 169.254.255.
Chapter 2 Front Panel Operations RIGOL The format of subnet mask is nnn.nnn.nnn.nnn, for example 255.255.255.0. You are recommended to ask your network administrator for an available subnet mask. Press Mask and enter the desired subnet mask using the direction keys. Gate: The format of gateway is nnn.nnn.nnn.nnn, for example 172.16.3.1. You are recommended to ask your network administrator for an available gateway. Press Gate and enter the desired gateway using the direction keys. 3.
RIGOL Chapter 2 Front Panel Operations To Set the GPIB Address Each device connected to the GPIB (IEEE-488.2) interface must have a unique address. Before using this interface, use GPIB cable to connect the multimeter with the PC. GPIB SEL Press ~Line（25VA Max） Fuse 115 AC 100-120V 45-440Hz AC 250V T250mA 230 AC 200-240V 45-66Hz AC 250V T125mA I/O GPIB to enter the GPIB address configuration interface. Use the direction keys to set the GPIB address to any integer within 0 and 30.
RIGOL Chapter 2 Front Panel Operations To Set the RS232 Before any related operations, use RS232 cable to connect the multimeter to a PC or data terminal equipment (DTE). Then, set the interface parameters such as baud rate, parity and handshake to match the mutlimeter with the PC or data terminal equipment, in order to control the multimeter. The measured result can be transferred into serial receiving device (PC) via this interface.
RIGOL Chapter 2 Front Panel Operations Press I/O RS232 to enter the following interface. Set: set RS232 interface parameters. Print: enable or disable the data output function. 1. To Set RS232 Parameters Press Set to enter the following interface. Baud: select the desired baud rate from 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200. The default is 9600. This setting is stored in nonvolatile memory. Parity: select the desired parity from None, Odd and Even.
Chapter 2 Front Panel Operations RIGOL System Configuration To Select the Language DM3068 supports English/Chinese menus and built-in helps. All the messages, context helps and help topics are displayed in the language selected. Press System Lang to enter the following interface and choose a desired language. To Set the Display Parameter Press System Disp to enter the following interface. 1. Bright Press Bright and set an appropriate brightness within 0 and 32 using the direction keys.
RIGOL Chapter 2 Front Panel Operations To Set the Sound Press System Sound to enter the following interface. You can enable or disable the beeper for front panel key operations and short-circuit test. The setting is stored in nonvolatile memory. To Set the Number Format Press System Format to enter the following interface. 1. Deciml Set the display format of the decimal point on the screen to “ ” or “ ”. 2.
RIGOL Chapter 2 Front Panel Operations To Set the Configuration Press System Cfg to enter the following interface. 1. PwrOn Select a system configuration to be used at power-on from “Default” and “Last” (configuration at last power-off). This setting will be available at the next power-on. The multimeter will always use DCV as the default measurement at every power-on no matter Default or Last is selected. 2. Default Restore the multimeter to factory defaults (see Table 2-8). 3.
RIGOL Range Chapter 2 Front Panel Operations Auto Math Operations Math Status OFF Math Item STA Math Register All registers cleared dBm Reference Resistance 600 Ω Trigger Parameters *Delay Auto *Number of Samples *Holding Range 1 0.
Chapter 2 Front Panel Operations RIGOL To Set the System Clock Press System Clock to enter the following interface. Use the left and right direction keys to move the cursor, use the up and down direction keys to modify the value and press Done to finish the system clock setting. To Perform the Self-Test DM3068 can automatically detect the system hardware and display the results in error list. Press T/C to enter the following interface.
Chapter 3 Remote Control RIGOL Chapter 3 Remote Control This chapter introduces how to control the multimeter remotely using either virtual panel based on web page or interface commands.
RIGOL Chapter 3 Remote Control Web Control DM3068 confirms to LXI-C standard and can be remotely controlled via web page. Please take the following steps. 1. Set the LAN Connect the multimeter to LAN using network cable. Set and obtain the IP address by referring to “Interface Configurations” in chapter 2. 2. Execute Remote Control Input the obtained IP address in the internet explorer and enter the following welcome interface. Then, click “Web Identification Indicator” and the beeper sounds.
Chapter 3 Remote Control RIGOL 2) Press “Network Settings” to enter the interface as shown in the figure below. Set the IP via this interface, press “Apply” to enable the modification and press “Cancel” to disable this setting. To restore to factory setting, press “LAN Configuration Initialize”.
RIGOL Chapter 3 Remote Control 4) Press “Help” to enter the interface as shown in the figure below to acquire the instrument information and network setting information. 5) Press “Security” to enter the interface as shown in the figure below. Input the old password and then input the new password twice; press “Apply” and a message is displayed indicating that the password setting succeeds; the password modification of the network setting of network control function succeeds.
Chapter 3 Remote Control RIGOL Command Control DM3068 can be remotely controlled using commands in two ways. User-Defined Programming Users can program and control the multimeter using standard SCPI (Standard Commands for Programmable Instruments) commands. For more details about commands and programming, please refer to the Programming Guide of DM3068.
RIGOL Chapter 3 Remote Control Remote Control via USB 1. Connect the Instrument Connect the USB Device interface of DM3068 to the PC USB Host interface using USB cable. 2. Install the USB Driver DM3068 is a USBTMC device. After you connect the instrument to the PC and turn both on (the instrument is automatically configured to USB interface), the New Hardware Wizard is displayed on the PC. Please install the “USB Test and Measurement Device” driver following the directions in the wizard. 3.
Chapter 3 Remote Control RIGOL 5. Communication Test Right click the source name “DM3068 (USB0::0x1AB1::0x0C94::DM3A020100823::INSTR)” and then select “SCPI Panel Control” to open the remote command control panel, from which you can send commands and read data as shown in the figure below.
RIGOL Chapter 3 Remote Control Remote Control via LAN 1. Connect the Instrument Connect the multimeter to you local network using network cable. 2. Configure LAN Parameters Select LAN interface and configure its parameters according to “Interface Configurations” in chapter 2. 3. Search LAN Device Turn on the Ultra Sigma and click .
Chapter 3 Remote Control RIGOL 5. Communication Test Right click the source name “DM3068 (TCPIP::172.16.3.32::INSTR)” and then select “SCPI Panel Control” to open the remote command control panel, from which you can send commands and read data as shown in the figure below.
RIGOL Chapter 3 Remote Control 6. Load LXI Web Page As the instrument conforms to LXI-C standards, you can load LXI web page through Ultra Sigma (right-click the resource name and select LXI-Web. Various important information about the instrument (including the model number, manufacturer, serial number, description, MAC address and IP address) will be displayed on the webpage. Please refer to “Web Page Control”.
RIGOL Chapter 3 Remote Control Remote Control via GPIB 1. Connect the Instrument Connect the multimeter to PC using GPIB cable. 2. Configure GPIB Address Select GPIB interface and configure its address according to “Interface Configurations” in chapter 2. 3. Search RS232 Devices Turn on the Ultra Sigma and click to enter the communication setting interface as shown in the figure below. Click “Search” and the software will search the GPIB instrument resources connected to the PC.
RIGOL Chapter 3 Remote Control shown in the figure below. 5. Communication Test Right click the source name “DM3068 (GPIB0::25::INSTR)” and then select “SCPI Panel Control” to open the remote command control panel, from which you can send commands and read data as shown in the figure below.
RIGOL Chapter 3 Remote Control Remote Control via RS232 1. Instrument Connection Connect the multimeter to PC using RS232 cable. 2. Configure RS232 Parameters Select RS232 interface and configure its parameters according to “Interface Configurations” in chapter 2. 3. Search RS232 Device Turn on the Ultra Sigma and click to enter the communication setting interface shown below.
RIGOL Chapter 3 Remote Control 4. View RS232 Device Click “OK”, the software returns to the main interface and the searched instruments are shown under the “RIGOL Online Resource” directory as shown in the figure below. 5. Communication Test Right click the source name “DM3068 (ASRL1::INSTR)” and then choose “SCPI Panel Control” to open the remote command control panel, from which you can send commands and read data as shown in the figure below.
Chapter 4 Troubleshooting RIGOL Chapter 4 Troubleshooting The commonly encountered failures and their solutions are listed below. When you encounter those problems, please solve them following the corresponding steps. If the problem remains still, please contact RIGOL and provide your device information ( T/C Info). 1. The screen is still dark (no display) after power on. 1) Check whether the power cord is well connected. 2) Check whether the power switch on the rear panel is switched on.
RIGOL 4) 5) 4-2 Chapter 4 Troubleshooting the capacity of the USB storage device is no larger than 4G bytes. Restart the multimeter and insert the USB storage device. If the problem persists, please contact RIGOL.
Chapter 5 Measurement Tutorial RIGOL Chapter 5 Measurement Tutorial This chapter introduces how to eliminate the potential error during your measurement in order to obtain accurate measurement result.
RIGOL Chapter 5 Measurement Tutorial Loading Errors (DCV) Measurement loading errors occur when the resistance of the device-under-test (DUT) takes up a certain percentage in the multimeter’s own input resistance. The diagram below shows this error source.
RIGOL Chapter 5 Measurement Tutorial True-RMS AC Measurements The AC measurement of DM3068 has true RMS response. The average thermal power of the resistor over a certain period is directly proportional to the square of the true RMS of the voltage of the resistor over this period of time, regardless of the waveform shape. DM3068 can accurately measure the true RMS voltage or current if the energy of the voltage or current waveform outside the effective bandwidth of the multimeter can be ignored.
RIGOL Chapter 5 Measurement Tutorial measure the DC and AC components of the signal using DCV and ACV measurements, and then calculate the AC+DC true RMS value according to the formula below. In order to obtain the best AC rejection, select 6.5 digits when measuring DC voltage.
RIGOL Chapter 5 Measurement Tutorial Crest Factor Errors (non-sinusoidal inputs) A common misconception is that "since a multimeter can measure the true RMS of signal, its sine wave accuracy specifications apply to all waveforms." Actually, the waveform shape of the input signal can affect the measurement accuracy. A common way to describe the signal wave shape is “crest factor”. Crest factor is the ratio of the peak value to RMS value of a waveform.
RIGOL Chapter 5 Measurement Tutorial Loading Errors (ACV) In the AC Voltage function, the input impedance of DM3068 appears as a 1 MΩ resistance in parallel with 100 pF of capacitance. The test lead of the multimeter will also add additional capacitance and load. The table below gives the multimeter’s approximate input resistance at various frequencies.
RIGOL Chapter 6 Specifications Chapter 6 Specifications DC Characteristics Accuracy Specifications: ±(% of reading + % of range)[1] Function DC Voltage DC Current Resistance[6] Range[2] 200.0000 2.000000 20.00000 200.0000 1000.000 200.0000 2.000000 20.00000 200.0000 2.000000 10.00000 200.0000 2.000000 20.00000 200.0000 1.000000 10.00000 User’s Guide for DM3068 mV V V V V[4] uA mA mA mA A A[5] Ω kΩ kΩ kΩ MΩ MΩ Test Current or Load Voltage 24 Hour[3] TCAL℃±1℃ 90 Day TCAL℃±5℃ 1 Year TCAL℃±5℃ <0.
RIGOL Chapter 6 Specifications 100.0000 MΩ 200 nA || 10 MΩ 0.300 + 0.010 0.800 + 0.010 0.800 + 0.010 0.1500 + 0.0002 Diode Test 2.0000 V[7] 1 mA 0.002 + 0.010 0.008 + 0.020 0.010 + 0.020 0.0010 + 0.0020 Continuity Test 2000.0 Ω 1 mA 0.002 + 0.010 0.008 + 0.020 0.010 + 0.020 0.0010 + 0.0020 [1] Specifications are for 90-minute warm-up and 100 PLC integration time. When the integration time is <100 PLC, add the appropriate “RMS Noise Adder” listed in the following table.
RIGOL Chapter 6 Specifications [1] [2] [3] [4] Typical value. Resolution is defined as the RMS noise of DCV 20 V range (set auto zero to “Once”). Normal mode rejection ratio for power frequency ±0.1%. For power-line frequency ±1%, subtract 20 dB. For ±3%, subtract 30 dB. Maximum rate for DCV, DCI, 2-wire resistance and 4-wire resistance functions. The basic DC accuracy specifications include RMS noise at 100 PLC. For <100 PLC, add “RMS Noise Adder” to the basic DC accuracy specifications.
RIGOL Chapter 6 Specifications Measuring Characteristics DC Voltage Input Impedance 200 mV, 2 V, 20 V ranges: 10 MΩ or >10 GΩ (For these ranges, input beyond ±26 V are clamped through 106 kΩ) 200 V and 1000 V ranges: 10 MΩ±1% Input Protection 1000 V Input Offset Current 50 pA, at 25℃, typical CMRR (common mode 140 dB for 1 kΩ unbalanced resistance in LO lead, ±500 VDC peak maximum.
RIGOL Chapter 6 Specifications Continuity/Diode Test Response Time 300 samples/sec, with audible tone Continuity Threshold Adjustable from 1 Ω to 2000 Ω Auto Zero OFF Operation (typical value) Following instrument warm-up at the environment temperature ±1℃ and <5 minutes, add 0.0001 % range + 2 uV error for DCV and 2 mΩ error for resistance. Settling Considerations Reading settling times are affected by source impedance, cable dielectric characteristics and input signal changes.
RIGOL Chapter 6 Specifications AC Characteristics Accuracy Specifications: ±(% of reading + % of range)[1] Function Range Frequency Range 24 Hour[3] TCAL℃±1℃ 90 Day TCAL℃±5℃ 1 Year TCAL℃±5℃ True RMS AC 200.0000 mV 3 Hz- 5 Hz 5 Hz-10 Hz 10 Hz-20 kHz 20 kHz-50 kHz 50 kHz-100 kHz 100 kHz- 300 kHz 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-20 kHz 20 kHz-50 kHz 50 kHz-100 kHz 100 kHz – 300 kHz 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-20 kHz 20 kHz- 50 kHz 50 kHz-100 kHz 100 kHz-300 kHz 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-20 kHz 1.00 0.
RIGOL Chapter 6 Specifications 750.000 V[5] True RMS AC Current 200.0000 uA [8] 2.000000 mA 20.00000 mA 200.0000 mA 2.
RIGOL Chapter 6 Specifications 10.00000 A[6] 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-5 kHz 1.10 + 0.08 0.35 + 0.08 0.15 + 0.08 1.10 + 0.10 0.35 + 0.10 0.15 + 0.10 0.100 + 0.008 0.035 + 0.008 0.015 + 0.008 Additional Crest Factor Errors (non-sine wave) [7] Additional Low Frequency Errors (% of reading) Frequency 1.10 + 0.10 0.35 + 0.10 0.15 + 0.10 AC Filter Crest Factor Error (% of reading) Slow Medium Fast 10 Hz-20 Hz 0 0.74 -- 1-2 0.05 20 Hz-40 Hz 0 0.22 -- 2-3 0.2 40 Hz-100 Hz 0 0.06 0.
RIGOL Chapter 6 Specifications Measuring Characteristics True RMS AC Voltage Measurement Method AC-coupled True-RMS -- measure the ac component of input with up to 400 V DC bias on any range.
RIGOL Chapter 6 Specifications Appling >300 Vrms (or >5 Arms) will cause self-heating in signal-conditioning components and the errors are included in the instrument specifications. Internal temperature changes due to self-heating may cause additional error on lower ac voltage ranges. The additional error will be less than 0.02% of reading and will generally dissipate within a few minutes.
RIGOL Chapter 6 Specifications Frequency and Period Characteristics Accuracy Specifications: ±(% of reading)[1][2] [3] Function Range Frequency Range 24 Hour TCAL℃±1℃ 90 Day TCAL℃±5℃ 1 Year TCAL℃±5℃ Frequency, Period 200 mV to 750 V 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-40 Hz 40 Hz-300 kHz 300 kHz-1 MHz 0.07 0.04 0.02 0.005 0.005 0.07 0.04 0.02 0.006 0.006 0.07 0.04 0.02 0.007 0.007 Temperature Coefficient 0℃ to (TCAL℃-5℃) (TCAL℃+5℃)to 50℃ 0.005 0.005 0.001 0.001 0.
RIGOL [3] Chapter 6 Specifications Relative to calibration standards. Measuring Characteristics Frequency and Period Measurement Method Reciprocal-counting technique, AC-coupled input using the AC voltage function. Input Impedance 1 MΩ ± 2%, in parallel with <150 pF capacitance on any range Input Protection 750 V rms on all ranges Measurement Considerations All frequency counters are susceptible to error when measuring low–voltage, low–frequency signals.
RIGOL Chapter 6 Specifications Capacitance Characteristics Accuracy Specifications: ± (% of reading + % of range)[1][2] Function [2] Range Test Current 1Year TCAL℃±5℃ Temperature Coefficient 0℃ to (TCAL℃-5℃) (TCAL℃+5℃) to 50℃ Capacitance 2.000 nF 200 nA 2 + 2.5 0.05+0.05 20.00 nF 2 uA 1 + 0.3 0.05+0.01 200.0 nF 10 uA 1 + 0.3 0.01+0.01 2.000 uF 100 uA 1 + 0.3 0.01+0.01 20.00 uF 1 mA 1 + 0.3 0.01+0.01 200.0 uF 1 mA 1 + 0.3 0.01+0.01 2.000 mF 1 mA 1 + 0.3 0.01+0.01 20.00 mF 1 mA 1 + 0.3 0.01+0.01 100.
RIGOL Chapter 6 Specifications Temperature Characteristics Accuracy Specifications Function Temperature [1] [2] [3] 6-14 Probe Type Type Optimum Range 1 Year TCAL℃±5℃ [1] Temperature Coefficient 0℃ to (TCAL℃-5℃) (TCAL℃+5℃) to 50℃ 0.01℃ 0.01℃ 0.01℃ 0.01℃ 0.002℃ 0.002℃ 0.002℃ 0.002℃ 0.002℃ 0.14℃ 0.02℃ 0.02℃ 0.03℃ 0.04℃ 0.09℃ 0.11℃ 0.03℃ α=0.00385 -200℃ to 660℃ 0.16℃ α=0.00389 -200℃ to 660℃ 0.17℃ α=0.00391 -200℃ to 660℃ 0.14℃ α=0.00392 -200℃ to 660℃ 0.15℃ 2.2 kΩ -40℃ to 150℃ 0.
Chapter 6 Specifications RIGOL Measuring Characteristics Measurement Considerations The built-in cold junction temperature tracks the temperature inside the banana jack. The change of temperature in banana jack might cause additional error. When using the built-in cold junction compensation, connect the sensor terminal of the thermocouple to the banana jack and warm it up for more than 3 minutes to minimize the error.
RIGOL Chapter 6 Specifications Measurement Rate Measurement Rate [1] Function Setting Integration Time Readings/s 50Hz (60Hz) DC Voltage 0.006 PLC Integration Time 100 (100) us 10000 (10000) DC Current 0.02 PLC 400 (333) us 2500 (3000) 2-wire Resistance 0.06 PLC 1.2 (1) ms 833 (1000) 4-wire Resistance 0.2 PLC 4 (3.33) ms 250 (300) 1 PLC 20 (16.7) ms 50 (60) 2 PLC 40 (33.3) ms 25 (30) 10 PLC 200 (167) ms 5 (6) 100 PLC 2 (1.67) s 0.5 (0.6) AC Voltage 3Hz AC Filter 0.
Chapter 6 Specifications [2] [3] [4] [5] RIGOL Use the default delay setup rate (the default trigger delay). The maximum rate available when trigger delay is set to 0. 20V range, fast filter, 1kHz input. Measure 20nF capacitance on 200nF range. The measurement period changes with the capacitance under test. The maximum measurement period on 100mF is 4s (typical value).
RIGOL Chapter 6 Specifications Other Measuring Characteristics Trigger and Storage Trigger Pre-trigger or Delayed-trigger, Internal Trigger or External Trigger, Rising Edge Trigger or Falling Edge Trigger Time Base Resolution 33.333 us, 0.01% Accuracy Trigger Delay 0 to 3600 s available (about 33 μs step) Sample Timer 0 to 3600 s available (about 33 μs step) Internal Trigger Accuracy ±1% of range Reading Hold Sensitivity 0.01%, 0.
RIGOL Chapter 6 Specifications Volatile Memory 512k reading history data record Non-volatile Memory 10 sets history data storage (5000 readings/group) 5 sets sensor data storage (5000 readings/group) 10 sets instrument setup storage 5 sets any sensor setup storage Support USB storage device backup of data in internal memory.
RIGOL Chapter 6 Specifications General Specifications Display 256×64 LCD, dual display, Chinese/English menu and online help. Power Supply AC 100 V – 120 V, 45 Hz – 440 Hz AC 200 V – 240 V, 45 Hz – 66 Hz Detect the power frequency automatically at power-on, 400 Hz defaults to 50 Hz Power Consumption 25 VA Max Working Environment Full accuracy for 0℃ to 50℃ Full accuracy to 80% R.H.
RIGOL Chapter 7 Appendix Chapter 7 Appendix Appendix A: DM3068 Accessories Model Standard Accessories Optional Accessories Description Order Number DM3068 (6 ½, dual-display) DM3068 Power Cord conforming to the standard of the country - Two Test Leads (black and red) - Two Alligator Clips (black and red) - USB Cable CB-USB-150 Four Spare Fuses: 2 AC, 250 V, T250 mA fuses 2 AC, 250 V, T125 mA fuses - Quick Guide - Resource CD (User’s Guide and Application Software) - Kelvin Test Clip
RIGOL Chapter 7 Appendix Appendix B: Warranty RIGOL warrants that its products mainframe and accessories will be free from defects in materials and workmanship within the warranty period. If a product is proven to be defective within the respective period, RIGOL guarantees the free replacement or repair of products which are approved defective. To get repair service, please contact with your nearest RIGOL sales and service office.
Chapter 7 Appendix RIGOL Appendix C: Any Question or Comment? If you have any question or comment on our document, please mail to: service@rigol.
Index RIGOL Index 2WR ........................................ 2-14 4WR ........................................ 2-14 AC Current ............................... 2-11 AC Filter ................................... 2-45 AC Voltage ................................. 2-7 Any Sensor ............................... 2-26 Aperture Time .......................... 2-48 Auto Trigger ............................. 2-61 Auto Zero ................................. 2-43 AutoIP .....................................
