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PXIe-414x Resistor Box Characterization

Calibration Executive 4.0 Help

Edition Date: March 2017

Part Number: 374564H-01

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Complete the following resistor characterization procedures using a high-precision DMM before running the PXIe-4140/4141/4142/4143 Calibration Procedure.

You must use the same cable(s) used in this characterization for the Voltage and Current Remote Sense Verification tests.

These characterization instructions only use the channel 0 cable connection to make the lead resistance measurements.

Verify that the difference in lead resistance between all four channels is <1 mΩ. For all measurements, configure the DMM for 4-wire resistance mode, and at least 6.5  digits of precision.

NOTE iconNote  The following Current Remote Sense Characterizations are for the PXIe-4140/4141/4142/4143 devices only.
Current Remote Sense Characterizations | Voltage Remote Sense Accuracy Characterizations

Current Remote Sense HI/R1 Characterization

Refer to Figure 1 for connection details.

  1. Connect Ch0 to the 100k resistor in the R1(HI) location as shown in Figure 1.
  2. Place the LO and LO Sense DMM leads on pin 14 of the Db25 DSUB connector and place the HI and HI Sense DMM leads at appropriate lead of the R1 resistor according to Figure 1.
  3. Wait one second for the DMM to settle.
  4. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4140/4141/4142/4143 Calibration Procedure.
  5. Repeat steps 1-4 for the following R1 resistance values: 10k, 1k, 100, 10.

Figure 1. Current Remote Sense R1 Characterization

Current Remote Sense R1 Characterization

1 Ch0 Output LO (Pin 16) 2 Ch0 Output HI (Pin 14)

 



Current Remote Sense LO/R2 Characterization

Refer to Figure 2 for connection details.

  1. Connect Ch0 to the 100k resistor in the R2 / LO location as shown in Figure 2.
  2. Place the LO and LO Sense DMM leads on pin 16 of the Db25 DSUB connector and place the HI and HI Sense DMM leads at appropriate lead of the R2 resistor according to Figure 2.
  3. Wait one second for the DMM to settle.
  4. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4140/4141/4142/4143 Calibration Procedure.
  5. Repeat steps 1-4 for the following R2 resistance values: 10k, 1k, 100, 10.

Figure 2. Current Remote Sense LO/R2 Characterization

Current Remote Sense LO/R2 Characterization

1 Ch0 Output LO (Pin 16) 2 Ch0 Output HI (Pin 14)

 



Voltage Remote Sense Accuracy 50 Ω HI Resistor Characterization

Refer to Figure 3 for connection details.

  1. Place the DMM LO and LO Sense leads on pin 14 of the Db25 DSUB connector and place the DMM HI and HI Sense leads on the appropriate resistor lead according to Figure 3.
  2. Wait one second for the DMM to settle.
  3. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4140/4141/4142/4143 and PXIe-4144/4145 Calibration Procedures.

Figure 3. Voltage Remote Sense HI/R1 Characterization

Voltage Remote Sense HI/R1 Characterization

1 Ch0 Output LO (Pin 16) 2 Ch0 Output HI (Pin 14)

 



Voltage Remote Sense Accuracy 50 Ω LO Resistor Characterization

Refer to Figure 4 for connection details.

  1. Place the DMM LO and LO Sense leads on pin 16 of the Db25 DSUB connector and place the DMM HI and HI Sense leads on the appropriate resistor lead according to Figure 4.
  2. Wait one second for the DMM to settle.
  3. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4140/4141/4142/4143 and PXIe-4144/4145 Calibration Procedures.

Figure 4. Voltage Remote Sense LO/R3 Characterization

Voltage Remote Sense LO/R3 Characterization

1 Ch0 Output LO (Pin 16) 2 Ch0 Output HI (Pin 14)

 



Voltage Remote Sense Accuracy 1K Ω Resistor Characterization

Refer to Figure 5 for connection details. the Voltage Remote Sense Accuracy 1K Ω Resistor Characterization applies only to PXIe-4140/4141/4142/4143 devices.

  1. Connect the DMM HI and HI Sense leads to one end of the 1k Ω resistor and connect the DMM LO and LO Sense leads to the other end of the resistor.
  2. Wait one second for the DMM to settle.
  3. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4140/4141/4142/4143 Calibration Procedure.

Figure 5. Voltage Remote Sense R2/1k Resistor Characterization

Voltage Remote Sense R2/1k Resistor Characterization

 



Voltage Remote Sense Accuracy 500 Ω Resistor Characterization

Refer to Figure 6 for connection details. The Voltage Remote Sense Accuracy 500 Ω Resistor Characterization applies only to PXIe-4144/4145 devices.

  1. Connect the DMM HI and HI Sense leads to one end of the 500 Ω resistor and connect the DMM LO and LO Sense leads to the other end of the resistor.
  2. Wait one second for the DMM to settle.
  3. Record the resistance to six digits of precision and enter the value in the appropriate text box on the Verify Resistor Values dialog box, displayed at the beginning of the PXIe-4144/4145 Calibration Procedure.

Figure 6. Voltage Remote Sense R2/500 Resistor Characterization

Voltage Remote Sense R2/1k Resistor Characterization


 

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