PSC4010 Reference Manual
PSC4010 Reference Manual 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.2 Standard Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.3 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Introduction The Martel PSC4010 Multifunction Process Calibrator is a handheld, battery-operated instrument that measures and sources electrical and physical parameters. The calibrator has the following features and functions: • A graphics display. The display can be used to source and measure volts, current, frequency, and to source pulse trains. • Setpoints in each range for quickly increasing/decreasing output • An interactive menu • Complete serial interface for remote control 1.
1.3 Safety information Symbols Used The following table lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual. Symbol Description AC (Alternating Current) AC-DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off On Canadian Standards Association The following definitions apply to the terms “Warning” and “Caution”.
Warning To avoid possible electric shock or personal injury: • Do not apply more than the rated voltage. See specifications for supported ranges. • Follow all equipment safety procedures. • Never touch the probe to a voltage source when the test leads are plugged into the current terminals. • Do not use the calibrator if it is damaged. Before you use the calibrator, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors.
2. Calibrator Interface Figure 1 shows the location of the input and output connections on the calibrator, while Table 1 describes their use. F1 F2 7 8 9 4 5 6 1 2 3 – 0 . F3 5 HOME CE ENTER 3 4 1 2 Figure 1. Input/Output Terminals Table 1: Input and Output Terminals 4 No.
Figure 2 shows the location of the keys on the calibrator. Table 2 lists the functions of each key. 1 F1 5 F2 7 8 9 4 5 6 1 2 3 – 0 . F3 3 4 HOME CE ENTER 2 Figure 2. Keypad Table 2. Key Functions No. Name Function 1 Function Keys F1, F2, F3 Used to operate the menu bar at the bottom of the calibrator display. F1 is used for selecting options in the left box, F2 for the center box, and F3 for the right box. 2 Home Returns to home menu on the menu bar.
The display of the calibrator is shown in Figure 3. The menu bar is used to setup the display to perform the desired function. Table 3 explains the different parts of the display: Table 3: Display Functions No. Name Description 1 Primary Parameters Determine what parameter is going to be measured or sourced. The available options are: VOLTS, FREQ (frequency), PULSE, mA, mA IN LOOP and mA 2W SIM. 2 Input/Output control Switches between input mode (read), and output mode (source).
The pulse home menu also has three active options, [MENU], [TRIG], and [COUNTS]. The [TRIG] and [COUNTS] options are used for pulse simulation. The function of these options is explained in Section 4.2-6 (Sourcing a Pulse). The next level of the menu bar is the main menu. The levels under the main menu depend on what mode the calibrator is in. The main menu has two active options [CONFIG] and [MORE]. Choosing [CONFIG] calls up the parameter selection menu. [MORE] enters the next menu level.
[DONE]. The [FREQ LEVEL] option is used to adjust the amplitude of the wave. [NEXT] is used to access the contrast main menu, and [DONE] returns to the home menu. The parameter selection menu is called up when [CONFIG] is selected from the main menu. It contains the following options: [SELECT], [NEXT], and [DONE]. When the display is selected, a parameter will start to flash. Use the [SELECT] option to change the parameter, and the [NEXT] option to switch to another variable.
2.3 Cursor control / Setpoint control The output value can be controlled by the four cursor control arrows on the keypad. By pressing one of the arrows a cursor will be added to the display under the last digit of the output value. The left and right arrow keys are used to select which decade to be changed in the output value. The up and down arrow keys are used to increase, decrease, or ramp the output value. The menu bar will change to the setpoint menu with the touch of any one of the four arrow keys.
3. Using Measure Modes 3.1 Measuring volts, millivolts and frequency The calibrator can measure volts or frequency on these jacks. To make the desired measurements, follow these steps: 1. Select the [CONFIG] option from the main menu. 2. Select the desired parameter for measurement. 3. Connect leads as shown in Figure 5. VOLTS IN + MEASURE / SOURCE 3W mA+ – + V Ω Hz – 4W mA– -0.001 V MENU LIGHT Figure 5. Measuring Volts and Frequency with Input/Output Terminals 3.
3.3 Measuring mA with Loop Power To test a 2-wire, loop powered transmitter that is disconnected from wiring, use the loop power function. This function activates a 24V supply in series with the current measuring circuit. To use this option proceed as follows: To measure mA with loop power follow these steps: 1. Use the [CONFIG] option from the main menu to select mA IN LOOP. 2. Connect leads as shown in Figure 7. +– MEASURE / SOURCE 3W mA+ 4W mA– + V Ω Hz – Figure 7. Connection Using Current Loop 4.
4.2 Using the Automatic Output Functions There are two automatic output functions, step and ramp. The selected function can be turned on and off using the Output Home Menu. The Automatic Output Function parameters can be set in the Auto Function Menu. Parameters include: 1. Which auto function will be available (Step or Ramp). 2. The Auto Function Time, time between steps for step and time to get from over one limit to the next for ramp. 3.
4.3-1 HART™ Resistor Selection The PSC4010 can be set-up so that the 250 ohm resistor required for Hart™ configuration devices resides inside the PSC4010. Enabling the PSC4010's internal 250 ohm resistor eliminates the need to manually add a series resistor during a Hart™ calibration process. NOTE: When the PSC4010's internal 250 resistor is enabled, maximum load driving capability drops from 1000 ohms @ 20mA to 750 ohms @20mA. Enable/Disable Procedure 1.
0.00% mA 2W SIM 4.000 mA MENU STEP LIGHT 4.5 Sourcing volts To source volts follow these steps: 1. Select the [CONFIG] option from the main menu. 2. Choose [VOLTS] from the primary parameters. Switch to input/output control and select output [OUT]. 3. Connect the leads for the voltage source terminals, as shown in Figure 11. 4. Enter the voltage using the keypad. 4.6 Sourcing millivolts To source volts follow these steps: 1. Select the [CONFIG] option from the main menu. 2.
4.7 Sourcing frequency To source a signal use these steps: 1. Select the [CONFIG] option from the main menu and select frequency from the primary parameters. 2. Select output, and than choose the frequency units. 3. Connect the leads to the frequency output terminals as shown in Figure 12. 4. Enter the desired frequency using the keypad. 5. To change the amplitude, select [FREQ LEVEL] from frequency level menu. 6. Enter the amplitude. 5.0 Vpp PULSE 1.0 kHz 1.0 kHz MENU TRIG COUNTS 5.
5. Remote Operation The calibrator can be remotely controlled using a PC terminal, or by a computer program running the calibrator in an automated system. It uses an RS-232 serial port connection for remote operation. With this connection the user can write programs on the PC, with Windows languages like Visual Basic to operate the calibrator, or use a Windows terminal, such as Hyper Terminal, to enter single commands. Typical RS-232 remote configurations are shown in Figure 12.
6. Select Ok 7. To see if the port works enter *IDN?. This command will return information on the unit. 5.2 Changing Between Remote and Local Operation There are three modes of operation of the calibrator, Local, Remote, and Remote with Lockout. Local mode is the default mode. Commands may be entered using the keypad on the unit or using a computer.
Overlapped Commands Commands that require more time to execute than normal. The command *WAI can be used after the overlapped command to tell the calibrator to wait until the command finishes before executing the next command. For example: TRIG; *WAI Triggers the pulse train. Once the pulse train has been triggered, the calibrator can proceed to the next command. Sequential Commands Commands that are executed immediately after the are entered. This type includes most of the commands. 5.
5.3-4 Calibrator Status Status registers, enable registers, and queues provide status information on the calibrator. Each status register and queue has a summary bit in the Serial Poll Status Byte. Enable registers generate summary bits in the Serial Poll Status Byte. The following is a list of registers and queues along with their function. Serial Poll Status Byte (STB) The STB is sent when the calibrator responds to the *STB? command. Figure 24 demonstrates how it functions. Cleared when power is reset.
7 6 5 4 3 2 1 0 PON 0 CME EXE DDE QYE 0 OPC PON Power On. Set to 1 if power was turned on and off before the Event Status Register was read. CME Command Error. Set to 1 when the calibrator receives an invalid command. EXE Execution Error. Set to 1 when the calibrator runs into an error while executing is last command. A parameter that has too significant figures may cause such an error. DDE Device-dependent Error. Set to 1 when, for example, the output of the calibrator is overloaded.
5.4 Remote Commands and Error Codes The following tables list all commands, and their descriptions, that are accepted by the calibrator. Table 5: Common Commands Command Description *CLS *CLS (Clear status.) Clears the ESR, the error queue, and the RQS bit in the status byte. Terminates pending Operation Complete commands *ESE Loads a byte into the Event Status Enable register. *ESE? Returns the contents of the Event Status Enable register.
Command PULSE_CNT? Description Returns the number of pulses in the pulse train REMOTE Puts the calibrator in remote mode SIM Sets the output for mA simulation SIM? Returns the output of the mA simulation TRIG Starts and stops the pulse train in pulse mode TRIG? Returns TRIGGERED when a pulse train is on. Returns UNTRIGGERED when the pulse train is off.
5.5 Entering Commands Commands for the calibrator may be entered in upper or lower case. There is at least one space required between the command and parameter, all other spaces are optional. Almost all commands for the calibrator are sequential, any overlapped commands will be indicated as such. This section will briefly explain each of the commands and describe their general use, which will include any parameters that may be entered with the command as well as what the output of the command is. 5.
*OPC? Returns 1 when all operations are complete, and causes program execution to pause until all the operations are complete. For example: TRIG ; *OPC? will return a 1 when the pulse train initiated by TRIG is complete. *RST Resets the state of calibrator to the power-up state. All subsequent commands are held off until the execution of the command is complete. *SRE Loads a byte into the Service Request Enable register.
For example, if a value for current output is entered that is bigger than the supported range (0-24mA) FAULT? Would return: 103 which is the code number for an entry over range. Refer to the Error Codes table for more information on error code numbers. FREQ_LEVEL Sets the amplitude of the wave used in the Frequency Out and Pulse modes. The range for amplitude entered may be found in the Specifications section. For example: FREQ_LEVEL 5 V sets the amplitude at 5Vpp.
LOCAL Restores the calibrator to local operation if it was in remote mode. Also clears LOCKOUT if the unit was in lockout mode. MEAS Sets the display to measure mode. The command is followed by any of the parameters except for pulse and mA sim, which are source only. Enter DCI for mA, DCV for volts, DCMV for millivolts, FREQUENCY for frequency, and PRESSURE for pressure. For example: MEAS DCV sets the display mode to VOLTS IN OUT Sets the output of the calibrator.
SIM Sets the output for current simulation. This command also switches the calibrator into mA simulation mode. A number and a unit must be entered after the command. For example: SIM 5 MA sets the current simulation at 5 mA SIM? Returns the output of the current simulation. With the example above, the output would be: 5.000000E-03, A TRIG Starts and stops the pulse train when the calibrator is in pulse mode. The parameters of the pulse train are set by commands PULSE_CNT, and FREQ_LEVEL.
6. Specifications One year at 23°C ± 5°C, unless specified otherwise. Outside of this range the stability of the measurements is ± 0.003% of FS/°C. Table 9: General Specifications Operating Temperature -10°C to 50°C Storage Temperature -20°C to 60°C Power 4 X AA batteries; Alkaline or optional rechargeable Battery Life Approximately 20 hours Serial Communications ASCII; RS232 or USB depending on the communications cable used CE - EMC EN61326: 2006, ANNEX B Criterion A Safety CSA C22.2 No. 1010.
Table 13: Frequency Measurement/Source Range Read 2.0CPM - 600.0CPM 1.0Hz - 1000.0Hz 1.00KHz - 10.00KHz Source Accuracy (% of reading ± floor) 0.05% ± 0.1CPM 0.05% ± 0.1Hz 0.05% ± 0.01KHz 2.0CPM - 600.0CPM 0.05% 1.0Hz - 1000.0Hz 0.05% 1.00KHz - 10.00KHz 0.250% Input voltage amplitude range on frequency is 1V to 20V zero based square wave only.Output amplitude is adjustable from 1V to 20V, and is a square wave with 50% duty cycle.For output frequency, a slight negative offset of approximately -0.
7. Maintenance / Warranty 7.1 Replacing Batteries Replace batteries as soon as the battery indicator turns on to avoid false measurements. If the batteries discharge too deeply the PSC4010 will automatically shut down to avoid battery leakage. Note: Use only AA size alkaline batteries or optional rechargeable battery pack. 7.2 Cleaning the Unit Warning To avoid personal injury or damage to the calibrator, use only the specified replacement parts and do not allow water into the case.
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