72-820 TENMA, 72-820 Datasheet - Page 17

• Manufacturer Part Number: 72-820
• Description: INFRARED THERMOMETER, 18°C TO 550°C
• Manufacturer: TENMA

Specifications of 72-820

• Temperature Measuring Range: 18°C To 550°C
• Temperature Tester Type: Thermometer - Infrared
• Accuracy %: 1.8%
• Wavelength Max: 670mm

To lock or unlock the trigger, use the following
procedures:
1. Press SET to select trigger lock setting, the
2. Press
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
2. Press
Model 72-820: OPERATING MANUAL
will blink.
to select
to select ON or OFF.
o
C or
o
C /
o
F.
o
F selection mode,
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.
l
l
l
l
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,
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