15
To lock or unlock the trigger, use the following
procedures:
1. Press
SET
to select trigger lock setting, the
will blink.
2. Press to select ON or OFF.
When the trigger is locked, the Thermometer will provide
continuous measurement. There is no need to pull the
trigger.
When the trigger is unlocked, the user must pull the
trigger for measurement. When the trigger is released,
the Thermometer will hold the measurement result
automatically.
1. Press
SET
to choose
o
C /
o
F selection mode,
2. Press to select
o
C or
o
F.
The display will remain activated 8 seconds after the
trigger is released. HOLD appears in the upper middle
of the display. When the trigger is pulled again, the
Thermometer will begin measuring in the last function
selected.
Typical Measurements
This section describes a variety of measurements often
performed by technicians.
User could select to turn on or off the backlight and
laser whenever you are making readings with the
Thermometer. But if you are using USB to power
up the Thermometer, the two levels white colour
backlight will be on automatically.
Relatively high emissivity normally means emissivity
setting of about 0.95.
Relatively low emissivity normally means emissivity
setting of about 0.30.
When the emissivity of an object is unknown,
Model 72-820: OPERATING MANUAL
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This Manual: http://www.manuallib.com/file/2592895
