This document is the user manual of Fluke's 53IIB/54IIB Thermometer
The Fluke 53IIB and 54IIB are microprocessor-based digital thermometers designed to use external J-, K-, T-, E-, R-, S-, and N-type thermocouples. The device features a display for temperature readings, minimum/maximum/average values, and a logging function. It supports various setup options including thermocouple type selection, offset adjustment, and sleep mode.
| Supported Thermocouple Types | J-, K-, T-, E-, R-, S-, and N-type |
|---|---|
| Accuracy (R, S) | 0.05% of reading + 0.4 °C |
| Accuracy (T) | 0.45% of reading + 0.3 °C |
| Temperature Scale | ITS-90 |
| Applicable Standard | NIST-175 |
The thermometer supports J-, K-, T-, E-, R-, S-, and N-type thermocouples.
You can change the thermocouple type by accessing the setup options in the menu.