44
Keysight U1251B/U1252B User’s and Service Guide
2
Making
Measurements
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 adapter 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.
C A U T I O N
Do not bend the thermocouple leads at sharp angles. Repeated bending
over a period of time may break the leads.