Chapter 2
4
NOTE: As you handle the probe, take care not to
bump it against duct walls or other objects. The
probe has been made as rugged as possible, but it
can be damaged by careless handling.
Measuring temperature
Whenever you plan to measure both temperature
and velocity, it is best to measure temperature first.
HINT for measuring temperature: Switch the
V
ELOCI
C
HECK
to the temperature mode before
turning the instrument on. This will minimize
the time required for the temperature sensor to
stabilize.
The temperature measuring sensor is in the window
near the end of the probe. Extend the probe and
expose the sensor in the window to the air where
you want to measure temperature.
When you measure temperature in moving air,
orient the window of the probe so that the air flows
through the window. This will minimize the time
required for the temperature readings to stabilize.
