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CALIBRATION PROCEDURE
NI VirtualBench
VB-8012, VB-8034, and VB-8054 All-In-One Instrument
This document contains the verification and adjustment procedures for the National Instruments
VirtualBench VB-8012, VB-8034, and VB-8054. Refer to
information about calibration solutions. Review and become familiar with the entire procedure
before beginning the calibration process.
Contents
Software and Firmware ...........................................................................................................2
Documentation.........................................................................................................................3
Test Equipment........................................................................................................................3
Test Conditions........................................................................................................................4
Digital Multimeter (DMM) Calibration Procedure .................................................................5
DMM Test Equipment.....................................................................................................6
DMM Test Conditions.....................................................................................................6
DMM Initial Setup...........................................................................................................7
DMM Verification...........................................................................................................7
Verifying DC Voltage .............................................................................................7
Verifying AC Voltage .............................................................................................10
Verifying Resistance................................................................................................12
Verifying DC Current..............................................................................................15
Verifying AC Current..............................................................................................18
DMM Adjustment............................................................................................................20
Setting Up the Test Equipment................................................................................21
Adjusting DC Voltage .............................................................................................21
Adjusting AC Voltage .............................................................................................22
Adjusting Resistance ...............................................................................................23
Adjusting AC and DC Current ................................................................................25
DMM EEPROM Update .................................................................................................26
DMM Re-Verification .....................................................................................................27
Oscilloscope Calibration Procedure ........................................................................................27
Oscilloscope Test Equipment ..........................................................................................27
Oscilloscope Test Conditions ..........................................................................................28
Oscilloscope Initial Setup................................................................................................28
Oscilloscope Verification ................................................................................................29
Verifying the Oscilloscope Offset ...........................................................................29
Verifying the Oscilloscope Gain .............................................................................32
Verifying the Oscilloscope Offset DAC Gain.........................................................37
Oscilloscope Adjustment.................................................................................................43
Oscilloscope EEPROM Update.......................................................................................47
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Related Manuals for National Instruments VirtualBench VB-8012
Summary of Contents for National Instruments VirtualBench VB-8012
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Page 1: Table Of Contents
CALIBRATION PROCEDURE NI VirtualBench ™ VB-8012, VB-8034, and VB-8054 All-In-One Instrument This document contains the verification and adjustment procedures for the National Instruments VirtualBench VB-8012, VB-8034, and VB-8054. Refer to for more ni.com/calibration information about calibration solutions. Review and become familiar with the entire procedure before beginning the calibration process. -
Page 2: Software And Firmware
Oscilloscope Re-Verification..................47 Function Generator (FGEN) Calibration Procedure ............... 47 FGEN Test Equipment....................48 FGEN Test Conditions....................48 FGEN Initial Setup ......................49 FGEN Verification......................49 Verifying the FGEN Offset..................49 Verifying the FGEN Gain..................50 FGEN Adjustment ......................51 FGEN EEPROM Update .................... -
Page 3: Documentation
All documents are available on and help files install with the software. ni.com • NI VirtualBench VB-8012 Quick Start or NI VirtualBench VB-8034/8054 Quick Start: Contains: NI VirtualBench hardware installation, software launching • NI VirtualBench VB-8012 Specifications, NI VirtualBench VB-8034 Specifications, or... -
Page 4: Test Conditions
Table 2. VirtualBench Calibration Recommended Equipment (Continued) Recommended Instrument Minimum Equipment Model Calibration Requirements Oscilloscope Fluke 9530 Oscilloscope DC operation calibrator active Calibration head Procedure Function generator NI 5421 Oscilloscope Must be able to Calibration generate a 1 kHz Procedure square wave (adjustment section) between 36 mV... -
Page 5: Digital Multimeter (Dmm) Calibration Procedure
These steps are described in more detail in the following sections. If you are calibrating both the DMM and the DC power supply, the DMM Note must be calibrated first. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 5... -
Page 6: Dmm Test Equipment
DMM Test Equipment Table 3 lists the equipment recommended for the DMM performance verification and adjustment procedures. If the recommended equipment is not available, select a substitute using the requirements listed in the table. Table 3. Recommended Equipment Recommended Equipment Model Minimum Requirements Multifunction... -
Page 7: Dmm Initial Setup
VirtualBench, and connect the connectors on the other end of the cable to the appropriate calibrator binding posts. Figure 1 shows the correct connections. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 7... - Page 8 Figure 1. Cable Connections for DC Voltage OUTPUT SENSE VΩA VΩ GUARD GROUND CURRENT VirtualBench DMM Multifunction Calibrator Low EMF Copper Cable Wait 2 minutes for the thermal EMF to stabilize. Null the points by completing the following steps: For the 100 mV range, set the calibrator to 0 V. When outputting less than 220 mV, range lock the calibrator to 2.2 V so it Note prevents creating a voltage divider with the internal resistance of the VirtualBench.
- Page 9 12. Set the input resistance of the VirtualBench by calling DMM Configure DC Voltage with the following parameter: • Input Resistance = 10 GOhm 13. Call . Compare to the limits listed in Table 4. DMM Read NI VirtualBench Calibration Procedure | © National Instruments Corporation | 9...
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Page 10: Verifying Ac Voltage
14. Repeat steps 10 through 13 for each verification point in the remaining ranges listed in Table 4. 15. Reset the calibrator for safety reasons. 16. Disconnect all cables from the calibrator and VirtualBench. You have completed verifying the DC voltage function of the VirtualBench. Verifying AC Voltage To verify the AC voltage function of the VirtualBench DMM, complete the following steps: Reset the calibrator. - Page 11 Repeat steps 4 through 6 for each verification point listed in Table 5 for all ranges. Reset the calibrator for safety reasons. Disconnect all cables from the calibrator and VirtualBench. You have completed verifying the AC voltage function of the VirtualBench. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 11...
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Page 12: Verifying Resistance
Verifying Resistance To verify the resistance function of the VirtualBench, complete the following steps: To verify resistance ≤19 kΩ, connect the red connectors on one end of the low EMF copper cable to the banana plug connectors of the VirtualBench, and connect the connectors on the other end of the cable to the appropriate calibrator binding posts. - Page 13 15. Call to allow the calibrator to properly settle. DMM Read 16. Wait 5 seconds for settling. 17. Call 20 times. Calculate and record the average value. DMM Read NI VirtualBench Calibration Procedure | © National Instruments Corporation | 13...
- Page 14 18. Output 100 kΩ verification point on the calibrator. 19. Call with the following parameters: DMM Configure Measurement • Function = Resistance • Auto Range = FALSE • Manual Range = Ω 100 k 20. Call 20 times. Calculate and record the average value. Subtract the average DMM Read value measured in step 17.
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Page 15: Verifying Dc Current
0.01 0.0101 0.0100909 0.0101091 0.0100976 0.0101024 -0.0000020 0.0000020 -0.0000020 0.0000020 -0.0101 -0.0101091 -0.0100909 -0.0101024 -0.0100976 0.101 0.100926 0.101074 0.100995 0.101005 -0.000003 0.000003 -0.000003 0.000003 -0.101 -0.101074 -0.100926 -0.101005 -0.100995 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 15... - Page 16 Use the values in the 24 Hour Limits column for a post-adjustment Note verification only. Otherwise, use the values in the 1 Year Limits column. Repeat steps 4 through 6 for each verification point listed in Table 8. Reset the calibrator for safety reasons. Disconnect all cables from the calibrator and VirtualBench.
- Page 17 15. Repeat steps 12 through 14 for each verification point listed in Table 9. 16. Reset the calibrator for safety reasons. 17. Disconnect all cables from the calibrator and VirtualBench. You have completed verifying the DC current function of the VirtualBench. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 17...
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Page 18: Verifying Ac Current
Verifying AC Current To verify the AC current function of the VirtualBench DMM, complete the following steps: Reset the calibrator. To verify AC current ranges ≤50 mA, connect the connectors on one end of the low EMF copper cable to the VirtualBench mA and LO banana plug connectors, and connect the connectors on the other end of the cable to the HI and LO calibrator binding posts. - Page 19 12. Generate 30 mA verification point on the calibrator. 13. Call with the following parameters: DMM Configure Measurement • Function = AC Current • Auto Range = FALSE • Manual Range = NI VirtualBench Calibration Procedure | © National Instruments Corporation | 19...
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Page 20: Dmm Adjustment
14. Call . Compare to the limits listed in Table 11. DMM Read Table 11. VirtualBench AC Current Verification Limits ≥ 500 mA 1 Year Limits (A 24 Hour Limits (A Range Verification Frequency Point (A (Hz) Lower Upper Lower Upper 0.03 0.02971... -
Page 21: Setting Up The Test Equipment
Range—A numerical array specifying the range being calibrated • Adjustment Point—A numerical array specifying the DC voltage required to perform the adjustment Output the adjustment point on the calibrator. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 21... -
Page 22: Adjusting Ac Voltage
Call with the following parameters: DMM Adjust DC Voltage Calibration • Range—Supplied from the output of DMM Get DC Voltage Calibration Adjustment Points • Adjustment Point—Supplied from the output of DMM Get DC Voltage Calibration Adjustment Points Repeat steps 6 through 7 for all adjustment points. Call with the following parameter: DMM Close Calibration... -
Page 23: Adjusting Resistance
Figure 10 shows the correct connections. ≤ 19 k Ω Figure 10. Cable Connections for Resistance OUTPUT SENSE VΩA VΩ GUARD GROUND CURRENT VirtualBench DMM Multifunction Calibrator Low EMF Copper Cable NI VirtualBench Calibration Procedure | © National Instruments Corporation | 23... - Page 24 Wait 2 minutes for the thermal EMF to stabilize. Call with the following parameter: DMM Initialize Calibration • Password = (default) Call . This will return DMM Get Resistance Calibration Adjustment Points two arrays: • Range—A numerical array specifying the range being calibrated •...
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Page 25: Adjusting Ac And Dc Current
Range—Supplied from the output of DMM Get Current Calibration Adjustment Points • Adjustment Point—Supplied from the output of DMM Get Current Calibration Adjustment Points Repeat steps 6 through 7 for the first six adjustment points. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 25... -
Page 26: Dmm Eeprom Update
To adjust current ranges ≥1 A, connect an amplifier to the calibrator, connect the connectors on one end of the low EMF copper cable to the VirtualBench A and LO banana plug connectors, and connect the connectors on the other end of the cable to the HI and LO binding posts on the amplifier. -
Page 27: Dmm Re-Verification
50 Ω terminator Amphenol VB-8012 only. 000-46650-51RFX Oscilloscope Fluke 9500B Vertical gain: DC ±(0.025% + 25 μV) into calibrator calibrator 1 MΩ Oscilloscope Fluke 9530 DC operation calibrator active head NI VirtualBench Calibration Procedure | © National Instruments Corporation | 27... -
Page 28: Oscilloscope Test Conditions
Table 12. Recommended Equipment (Continued) Recommended Equipment Model Minimum Requirements Function generator NI 5421 Must be able to generate a 1 kHz square wave between 36 mV and 18 V with less than 200 ns rise time and less than 5% overshoot. -
Page 29: Oscilloscope Verification
MSO Initialize Call with the following parameter: MSO Configure Timing • Sample Rate = • Acquisition Time (s) = • Pretrigger Time (s) = 1e-9 • Sampling Mode = Sample NI VirtualBench Calibration Procedure | © National Instruments Corporation | 29... - Page 30 Call with the following parameters: MSO Configure Analog Channel • Enable Channel = TRUE • Channel = mso/1 • Vertical Coupling = • Probe Attenuation = • Vertical Range = • Vertical Offset = Call MSO Run Call . Calculate and record the average analog waveform. Verify that this MSO Read measurement falls within the limits in Table 13.
- Page 31 Repeat steps 2 to 9 for all ranges on channel 4. (VB-8034/8054) When calling in step 4, change the Note MSO Configure Analog Channel Channel input to mso/4 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 31...
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Page 32: Verifying The Oscilloscope Gain
Verifying the Oscilloscope Gain Complete the following steps to verify the VirtualBench oscilloscope gain. Connect VirtualBench channel 1 to the oscilloscope calibrator active head, as shown in Figure 15. Figure 15. Oscilloscope Gain Channel 1 Connection Diagram CH 1 CH 2 VirtualBench Oscilloscope Oscilloscope Calibrator Active Head Oscilloscope Calibrator... - Page 33 1 Year Limits (%) 24 Hour Limits (%) Range (V) Lower Upper Lower Upper -0.8 -0.8 -4.5 -0.8 -1.8 -0.8 -0.9 -0.8 0.45 -0.45 -0.9 0.18 -0.18 -0.9 0.09 -0.09 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 33...
- Page 34 Table 14. Oscilloscope Gain Verification Limits (Continued) 1 Year Limits (%) 24 Hour Limits (%) Range (V) Lower Upper Lower Upper 0.05 0.045 -0.045 0.02 0.018 -0.018 -1.2 * VB-8034 and VB-8054 only. 15. Repeat steps 4 to 14 for all of the ranges with the values for V and V in Table 14.
- Page 35 Oscilloscope Calibrator Active Head Repeat steps 2 to 16 for all ranges on channel 3. (VB-8034/8054) When calling Note (VB-8034/8054) MSO Configure Analog Channel step 4, change the Channel input to mso/3 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 35...
- Page 36 Remove the connections from channel 3. Connect VirtualBench channel (VB-8034/8054) 4 to the oscilloscope calibrator active head, as shown in Figure 18. Figure 18. VB-8034/8054 Oscilloscope Gain Channel 4 Connection Diagram CH 1 CH 2 VirtualBench Oscilloscope Oscilloscope Calibrator Oscilloscope Calibrator Active Head Repeat steps 2 to 16 for all ranges on channel 4.
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Page 37: Verifying The Oscilloscope Offset Dac Gain
MSO Initialize Call with the following parameters: MSO Configure Timing • Sample Rate = • Acquisition Time (s) = • Pretrigger Time (s) = 1e-9 • Sampling Mode = Sample NI VirtualBench Calibration Procedure | © National Instruments Corporation | 37... - Page 38 Call with the following parameters: MSO Configure Analog Channel • Enable Channel = TRUE • Channel = mso/1 • Vertical Coupling = • Probe Attenuation = • Vertical Range = • Vertical Offset = Set the oscilloscope calibrator DC voltage output to the programmed vertical offset, or -18 V for this iteration.
- Page 39 MSO Configure Analog Channel input must match the range value in Table 15. The 0.02 V vertical range only applies to the VB-8034 and VB-8054. Note 18. Call MSO Close NI VirtualBench Calibration Procedure | © National Instruments Corporation | 39...
- Page 40 19. Remove the connections from channel 1. Connect VirtualBench channel 2 to the oscilloscope calibrator active head, as shown in Figure 20. Figure 20. Oscilloscope Gain Channel 2 Connection Diagram CH 1 CH 2 VirtualBench Oscilloscope Oscilloscope Calibrator Oscilloscope Calibrator Active Head 20.
- Page 41 Oscilloscope Calibrator Active Head Repeat steps 2 to 18 for all ranges on channel 3. (VB-8034/8054) When calling Note (VB-8034/8054) MSO Configure Analog Channel step 4, change the Channel input to mso/3 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 41...
- Page 42 Remove the connections from channel 3. Connect VirtualBench channel (VB-8034/8054) 4 to the oscilloscope calibrator active head, as shown in Figure 22. Figure 22. VB-8034/8054 Oscilloscope Gain Channel 4 Connection Diagram CH 1 CH 2 VirtualBench Oscilloscope Oscilloscope Calibrator Oscilloscope Calibrator Active Head Repeat steps 2 to 18 for all ranges on channel 4.
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Page 43: Oscilloscope Adjustment
50 Ω Terminator VB-8012 Oscilloscope Call with the following parameter: MSO Initialize Calibration • Password = (default) Call with the following parameter: MSO Adjust Offset Calibration • Channel = mso/1 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 43... - Page 44 Disconnect the 50 Ω terminator (VB-8012) Connect Channel 1 of the oscilloscope to Channel 0 of the function generator with the BNC-to-SMB cable, as shown in Figure 24. Figure 24. Oscilloscope Channel 1-to-Function Generator Connection Diagram ACCESS ACTIVE CH 0 PFI 0 PFI 1 VirtualBench Oscilloscope...
- Page 45 13. Use the oscilloscope calibrator to generate a DC voltage with the adjustment point supplied from the output of MSO Get Range Calibration Adjustment Points. 14. Wait 5 seconds. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 45...
- Page 46 15. Call with the following parameters: MSO Adjust Range Calibration • Channel— mso/1 • Range—Supplied from the output of MSO Get Range Calibration Adjustment Points • Adjustment Point—Supplied from the output of MSO Get Range Calibration Adjustment Points 16. Repeat steps 13 to 15 for each adjustment point. 17.
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Page 47: Oscilloscope Eeprom Update
FGEN Initial Setup—Set up the test equipment. FGEN Verification—Verify the existing operation of the instrument. This step confirms whether the instrument is operating within its specified range prior to adjustment. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 47... -
Page 48: Fgen Test Equipment
FGEN Adjustment—Perform an external adjustment of the instrument that adjusts the calibration constants with respect to standards of known values. FGEN Re-Verification—Repeat the verification procedure to ensure that the instrument is operating within its specifications after adjustment. These steps are described in more detail in the following sections. FGEN Test Equipment Table 16 lists the equipment recommended for the FGEN performance verification and adjustment procedures. -
Page 49: Fgen Initial Setup
Figure 27. Figure 27. Cable Connections for FGEN Verification and Adjustment INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench FGEN Banana Plug-to-BNC Cable NI VirtualBench Calibration Procedure | © National Instruments Corporation | 49... -
Page 50: Verifying The Fgen Gain
Call FGEN Initialize Call with the following parameters: FGEN Configure Standard Waveform • Waveform Function = • DC Offset = Call with the following parameter: FGEN Enable Filter • Enable Filter = TRUE Call to enable the output. FGEN Run Wait at least 100 milliseconds for settling. -
Page 51: Fgen Adjustment
Before adjustment perform a self-calibration on the DMM performing the Note adjustment. Allow the VirtualBench to warm up for at least 30 minutes before adjusting. Note NI VirtualBench Calibration Procedure | © National Instruments Corporation | 51... - Page 52 To adjust the FGEN accuracy complete the following steps. Connect the voltage input HI and LO terminals of the DMM to the FGEN BNC using a banana plug-to-BNC cable—observing the polarity of the banana plugs—as shown in Figure 28. Figure 28. Cable Connections for FGEN Verification and Adjustment INPUT 3A, 250V AMPS...
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Page 53: Fgen Eeprom Update
Setup—Set up the test equipment. DC Power Supply Verification—Verify the existing operation of the instrument. This step confirms whether the instrument is operating within its specified range prior to adjustment. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 53... -
Page 54: Dc Power Supply Test Equipment
DC Power Supply Adjustment—Perform an external adjustment of the instrument that adjusts the calibration constants with respect to standards of known values. DC Power Supply Re-Verification—Repeat the verification procedure to ensure that the instrument is operating within its specifications after adjustment. These steps are described in more detail in the following sections. -
Page 55: Dc Power Supply Initial Setup
If you are calibrating both the DMM and the DC power supply, the DMM Note must be calibrated first. DC Power Supply Verification You can use the verification procedure described in this section for both pre-adjustment and post-adjustment verification. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 55... -
Page 56: Verifying Voltage Programming And Measurement Accuracy
Verifying Voltage Programming and Measurement Accuracy To verify the voltage programming and measurement accuracy on the +6 V, +25 V, and -25 V channels, complete the following steps. Reset the DMM and configure it for the 10 V range. Connect Channel +6 V to Volts HI, and GND to Volts LO with cabling wire, as shown in Figure 29. - Page 57 +25 V 0.0200 0.0080 0.0298 0.0096 12.5 0.0388 0.0111 18.75 0.0481 0.0127 0.0575 0.0143 -25 V 0.0200 0.0080 -6.5 0.0298 0.0096 -12.5 0.0388 0.0111 -18.75 0.0481 0.0127 0.0575 0.0143 NI VirtualBench Calibration Procedure | © National Instruments Corporation | 57...
- Page 58 Table 22. VB-8034/8054 DC Power Supply Voltage Programming and Measurement Accuracy Verification Current 24 Hour Limits Channel Point (V) Limit (A) 1 Year Limits ±(V) ±(V) +6 V 0.0050 0.0020 0.0065 0.0024 0.0080 0.0028 0.0095 0.0031 0.0110 0.0035 +25 V 0.0200 0.0080 0.0298...
- Page 59 AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire 13. Configure the DMM for the 100 V range. 14. Repeat steps 4 through 11 for the channel ps/+25V NI VirtualBench Calibration Procedure | © National Instruments Corporation | 59...
- Page 60 15. Disconnect all connections and connect Channel -25 V to Volts HI, and GND to Volts LO as shown in Figure 31. Connect GND and Common Floating GND with a jumper. Figure 31. Cable Connections For -25 V Voltage Programming Accuracy Verification INPUT 3A, 250V AMPS...
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Page 61: Verifying Current Programming And Measurement Accuracy
3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire Call PS Initialize Call with the following parameter: PS Enable All Outputs • Enable Outputs = TRUE NI VirtualBench Calibration Procedure | © National Instruments Corporation | 61... - Page 62 Call with the following parameters: PS Configure Current Output • Channel = ps/+6V • Current Level = , as listed in the first row of the Verification Point 0.01 0.03 column of Table 23 or 24 • Voltage Limit = , as listed in the first row of the Voltage Limit column of Table 23 or 24 Wait for the DC power supply to settle.
- Page 63 3A, 250V AMPS 300V 500V MAX INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire 13. Repeat steps 5 through 11 for the channel. ps/+25V NI VirtualBench Calibration Procedure | © National Instruments Corporation | 63...
- Page 64 14. Disconnect all connections and connect Channel -25 V to Amps LO, and Common Floating GND to Amps HI as shown in Figure 34. Connect GND and Common Floating GND with a jumper. Figure 34. Cable Connections For -25 V Current Programming Accuracy Verification INPUT 3A, 250V AMPS...
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Page 65: Dc Power Supply Adjustment
PS Initialize Calibration • Cal Type = Voltage • Password = (default) Connect Channel +6 V to Volts HI, and GND to Volts LO as shown in Figure 35. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 65... - Page 66 Figure 35. Cable Connections For +6 V Voltage Programming and Measurement Accuracy Adjustment INPUT 3A, 250V AMPS 300V 500V MAX INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire Call with the following parameter: PS Get Adjustment Points •...
- Page 67 3A, 250V AMPS 300V 500V MAX INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire 11. Repeat steps 4 through 9 for the channel. ps/+25V NI VirtualBench Calibration Procedure | © National Instruments Corporation | 67...
- Page 68 12. Disconnect all connections and connect Channel -25 V to Volts HI, and Common Floating GND to Volts LO as shown in Figure 37. Connect GND and Common Floating GND with a jumper. Figure 37. Cable Connections For -25 V Voltage Programming and Measurement Accuracy Adjustment INPUT 3A, 250V...
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Page 69: Adjusting Current Programming And Measurement Accuracy
Figure 38. Cable Connections For +6 V Current Programming and Measurement Accuracy Adjustment INPUT 3A, 250V AMPS 300V 500V MAX INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire NI VirtualBench Calibration Procedure | © National Instruments Corporation | 69... - Page 70 Call with the following parameter: PS Get Adjustment Points • Channel = ps/+6V This will return an array: • Adjustment Points—An array of current points used in the adjustment steps Call with the following parameters: PS Set Adjustment Point • Channel = ps/+6V •...
- Page 71 3A, 250V AMPS 300V 500V MAX INPUT 3A, 250V AMPS 300V 500V MAX VirtualBench DC Power Supply Cabling Wire 11. Repeat steps 4 through 9 for the channel. ps/+25V NI VirtualBench Calibration Procedure | © National Instruments Corporation | 71...
- Page 72 12. Disconnect all connections and connect Channel -25 V to Amps LO, and Common Floating GND to Amps HI as shown in Figure 40. Connect GND and Common Floating GND with a jumper. Figure 40. Cable Connections For -25 V Current Programming and Measurement Accuracy Adjustment INPUT 3A, 250V...
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Page 73: Dc Power Supply Eeprom Update
NI product. Product registration facilitates technical ni.com/register support and ensures that you receive important information updates from NI. NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504, USA. NI VirtualBench Calibration Procedure | © National Instruments Corporation | 73... - Page 74 For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patents Notice at ni.com/patents. You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the NI global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and...
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