Verifying Temperature - Keithley 2701 Service Manual

Section 1: Performance verification Model 2701 Ethernet-Based DMM / Data Acquisition System Service Manual
9. Disable external sense on the calibrator.
10. Set the 2701 for the 100 MΩ range.
11. Source a nominal 100 MΩ resistance value and verify that the reading is within calculated limits
for the 100 MΩ range.
12. Press the OPEN key to open channel 1.

Verifying temperature

Thermocouple, thermistor, and RTD temperature readings are derived from DC volts and resistance
measurements, respectively. For that reason, it is not necessary to independently verify the accuracy
of temperature measurements. As long as the DC volts and resistance functions meet or exceed
specifications, temperature function accuracy is automatically verified. However, temperature
verification procedures are provided below for those who wish to separately verify temperature
accuracy.
1-24 2701-902-01 Rev. B / December 2018