2 Making Measurements
76 Keysight U1253B User’s and Service Guide
Measuring Temperature
The bead-type thermocouple probe is suitable for measuring temperatures from
–20 °C to 200 °C in PTFE-compatible environments. Do not use the thermocouple
probe beyond the recommended operating range. Do not immerse this
thermocouple probe in any liquid. Use a thermocouple probe designed for each
specific application — an immersion probe for liquid or gel, and an air probe for air
measurement.
Set up the multimeter to measure temperature as shown in Figure 2-17 or
observe the following steps:
1 Press to select temperature measurement.
2 Connect the miniture thermal probe into the non-compensation transfer
adapter as shown in Figure 2-15. Then connect the thermal probe with the
adapter into the meter input terminals as shown in Figure 2-16.
3 For best performance, place the meter in the operating environment for at
least one hour to stabilize the unit to environment temperatures.
4 Clean the surface to be measured and ensure that the probe is securely
touching the surface. Remember to disable the applied power.
5 When measuring above ambient temperatures, move the thermocouple along
the surface until you get the highest temperature reading.
6 When measuring below ambient temperatures, move the thermocouple along
the surface until you get the lowest temperature reading.
7 For quick measurement, use the 0 °C compensation to view the temperature
variation of the thermocouple sensor. The 0 °C compensation assists you in
measuring relative temperature immediately.
Do not bend the thermocouple leads at sharp angles. Repeated bending
over a period of time can result in the leads breaking.
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