Uut Prt 3-Wire Test - Fluke 9190A Operator's Manual

8. Calculate the error with the formula below where actual is the calibrated resistance
value of the standard resistor. Record this result.
Error = Average – Actual
9. Compare the error with the spec to determine the status. Record the result.
Resistance Standard
Resistance Standard

UUT PRT 3-Wire Test

The UUT PRT 3-Wire Test is used to collect As Found and As Left data.
All Reference Accuracy Tests are to be performed in Ohms.
Perform the UUT PRT 3-Wire Test as follows:
1. Connect the 100 Ω resistor in the 3-wire UUT configuration (see Figure 4-3).
2. Set the instrument to take UUT measurements from the PRT input.
3. Set the instrument to 3-wire mode for the UUT PRT input.
CURRENT SENSE
HI
HI
LO LO
CURRENT SENSE
HI
HI
LO LO
Figure 4-3. 4-Wire Setup
Note
9190A Input Panel Calibration
4-Wire Reference Probe
Probe Connector
1 5
6
2
4
3
RTD Sensor
4-Wire PRT
Calibration
Shield
3-Wire PRT
gzs054.eps
4
4-19