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TB-4302C Calibration Procedure

Calibration Executive 4.0 Help

Edition Date: March 2017

Part Number: 374564H-01

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This topic contains information for calibrating the National Instruments TB-4302C terminal block using Calibration Executive.

Calibration Executive Procedure Features:


Manual Mode

Selectable Test Points


Approximate Test Time: 7 minutes

Test Equipment|Test Conditions|Device Setup|Test Limit Equations

Test Equipment

The following table lists the test instruments required for calibrating the TB-4302C.

Instrument Recommended Model Requirements
DMM PXI-4071 Use a DMM that has an accuracy of 136 ppm or better when measuring 5 Ω in 4-wire mode.
4-wire Kelvin probe Keithley 5808 Use a probe capable of measuring Kelvin resistance.

Test Conditions

The following setup and environmental conditions are required to ensure the TB-4302C meets published specifications.

  • Keep connections to the device as short as possible. Long cables and wires act as antennas, picking up extra noise that can affect measurements
  • Maintain an ambient temperature of 23 °C ±5 °C. The device temperature will be greater than the ambient temperature.
  • Keep the relative humidity below 80%.

Device Setup

  1. Loosen the two jackscrews and remove the cover from the TB-4302C.
  2. Launch the Calibration Executive procedure. Calibration Executive guides you through the required connections.

Test Limit Equations

The following test limits are derived from the published specifications.

Shunt Value Accuracy Verification

TestLimit = TestValue ± [TestValue * (GainError / 100)]


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