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Making Measurements 2
Agilent U1251A/U1252A User’s and Service Guide 43
Measuring Temperature
The bead type thermocouple probe is suitable for making
temperature measurements between –20 °C to 200 °C in
PTFE compatible environments.
Do not use the bead-type thermocouple probe beyond the
recommended operating temperature range. Do not immerse
this thermocouple probe in liquids. For best results, use a
thermocouple probe designed for each application — an
immersion probe for liquid or gel and an air probe for air
measurements.
Set up the multimeter to measure temperature as shown in
Figure 2-15 or observe the following steps:
1 Press to select the temperature measurement.
2 Connect the miniture thermal probe into the
non- compensation transfer adaptor as shown in
Figure 2-13.
3 Connect the thermal probe with the adapter into the
meter input terminals as shown in Figure 2- 14.
4 For best performance, place the meter in the operating
environment for at least one hour to stabilize the unit to
environment temperatures.
5 Clean the measurement surface and make sure the probe
is securely touching the surface. Remember to disable the
applied power.
6 When measuring above the ambient temperature, move the
thermocouple along the surface until you get the highest
temperature reading.
7 When measuring below ambient temperature, move the
thermocouple along the surface until you get the lowest
temperature reading.
CAUTION
Do not bend the thermocouple leads at sharp angles. Repeated bending
over a period of time may break the leads.