Agilent Technologies U1231A Guía de usuario Pagina 73

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Making Measurements 2
Measuring Temperature
U1231A/U1232A/U1233A User’s Guide 55
Changing the default temperature unit
You can change the temperature unit (Celsius only,
Celsius/Fahrenheit, Fahrenheit only, or Fahrenheit/Celsius)
from the Setup menu.
1 Press and hold while powering on the multimeter to
enter the Setup menu.
2 Press and hold for more than 1 second until is
shown on the display.
3 Press or to change the default temperature unit
shown on the display.
NOTE
The bead-type thermocouple probe is suitable for measuring temperatures
from –40 °C to 204 °C (399 °F) in PTFE-compatible environments. Above
this temperature range, the probe may emit toxic gas. Do not immerse this
thermocouple probe in any liquid. For best results, use a thermocouple
probe designed for each specific application — an immersion probe for
liquid or gel, and an air probe for air measurement.
Observe the following measurement techniques:
Clean the surface to be measured and ensure that the probe is securely
touching the surface. Remember to disable the applied power.
When measuring above ambient temperatures, move the thermocouple
along the surface until you get the highest temperature reading.
When measuring below ambient temperatures, move the thermocouple
along the surface until you get the lowest temperature reading.
Place the multimeter in the operating environment for at least 1 hour as
the multimeter is using a non-compensation transfer adapter with
miniature thermal probe.
For quick measurement, use the compensation to view the
temperature variation of the thermocouple sensor. The
compensation assists you in measuring relative temperature
immediately.
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