5 Characteristics and Specifications
Electrical Specifications
110 U1231A/U1232A/U1233A User’s Guide
Temperature specifications
Tab le 5- 4 Temperature specifications
Thermal type Range Resolution
Accuracy
U1233A
K
–40 °C to 1372 °C 0.1 °C 1% + 1 °C
–40 °F to 2502 °F 0.1 °F 1% + 1.8 °F
Notes for temperature specifications:
1 The specification above is specified after the multimeter has been left stationary in the same operating environment for
1 hour at least. If the unit is exposed during storage in a high humidity (condensing) environment, ensure that the
multimeter has been in the same operating environment for 2 hours at least.
2 The accuracy does not include the tolerance of the thermocouple probe.
3 Do not allow the temperature sensor to contact a surface that is energized above 30 Vrms or 60 V DC. Such voltages
poses a shock hazard.
4 Ensure that the ambient temperature is stable within ±1 ºC and that the Null function is used to reduce the test lead’s
thermal effect and temperature offset. Before using the Null function, set the multimeter to measure temperature
without ambient compensation ( ) and keep the thermocouple probe as close to the multimeter as possible (avoid
contact with any surface that has a different temperature from the ambient temperature).
5 When measuring temperature with respect to any temperature calibrator, try to set both the calibrator and multimeter
with an external reference (without internal ambient compensation). If both the calibrator and multimeter are set with
internal reference (with internal ambient compensation), some deviations may show between the readings of the
calibrator and multimeter, due to differences in ambient compensation between the calibrator and multimeter. Keeping
the multimeter close to the output terminal of calibrator will help reduce the deviation.
6 The temperature calculation is specified according to the safety standards of EN/IEC-60548-1 and NIST175.
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