9.2 Troubleshooting
Symptom: Temperature is NAN, –INF, –9999, –273
Verify wiring of sensor to the data logger; cross-reference data logger program or the
measurement system wiring diagram.
Symptom: Incorrect Temperature
Check the cable for signs of damage and possible moisture intrusion.
Symptom: Unstable Temperature
Make sure the shield and ground wires are connected to data logger ground, and the data
logger is properly grounded.
Symptom: Unusually high error detected
Measurements made using 2-wire configurations may have higher error, especially if the
program and DUT offset are based on a 4-wire configuration. Please refer to
(p. 10) for more information.
9.3 Calibration
For the 4-wire configuration, the recommended calibration interval is listed on the calibration
certificate (see
[p. 19]). For the 2-wire configuration, contact the third party accredited
laboratory that performed the original calibration for the recommended calibration interval.
Figure 9-1. Location of recommended calibration interval on the calibration certificate
TempVue 10 PT-100 Class A, Precision Air Temperature Sensor
19
