Using The Type K Thermometer (Tg56 Only) - FLIR TG54 User Manual

5.6 Using the Type K Thermometer (TG56 only)
A Type K thermocouple thermometer jack is provided at the top of the TG56. The thermocouple
plug has a wide and a thin connecting blade, please insert the thermocouple carefully, in the
correct orientation; do not force it into the jack.
When a thermocouple is connected, the temperature of the surface in which the thermocouple
is touching is displayed (next to the
The display mode area of the screen (middle of top row of icons) shows the thermocouple
icon when a thermocouple is connected. The difference between the IR reading and the
thermocouple reading is displayed next to the delta icon
When a thermocouple is connected to the meter other operational modes are not available.
5.6.1 Using the Type K Thermometer to set Emissivity
1. Measure the surface of the object under test with the IR Thermometer.
2. Measure the same surface with the Type K thermocouple thermometer.
3. Note the difference (delta) between the two readings.
4. Now adjust the Emissivity in the Programming menu (Section 6) so that the IR
thermometer reading matches the Type K thermometer reading.
5. When this is accomplished the emissivity setting is correct for the surface in question.
Thermocouple notes:

The supplied general purpose thermocouple is not rated for the entire measurement
range of the meter. The thermocouple can be damaged if temperature outside its
specified range is measured. In all cases, please use a thermocouple that is rated for the
intended application only. Refer to the specifications section of this User Manual for
meter temperature and thermocouple temperature ranges.

The accuracy characteristics of the thermocouple probe should be added to the accuracy
specification of the meter when interpreting thermocouple readings.

The IR thermometer averages a larger area than the thermocouple probe, thus the
emissivity adjustment procedure in Section 5.6.1 is an approximation.
FLIR TG54_TG56 User Manual
icon) along with the IR temperature reading.
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Document Identifier: TG54_TG56‐en‐US_AA
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