72-820 TENMA, 72-820 Datasheet - Page 14

• 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

Emissivity describes the energy-emitting characteristics
of materials. Most organic materials and painted or
oxidized surfaces have an emissivity of about 0.95.
If possible, to compensate for inaccurate readings that
may result from measuring shiny metal surfaces, cover
the surface to be measured with masking tape or flat
black paint (<150
setting. Allow time for the tape or paint to reach the
same temperatures as the surface beneath it. Measure
the temperature of the tape or painted surface.
If you cannot use paint or use tape, then you could
improve the accuracy of your measurements with the
emissivity selector. Even with emissivity selector, it can
be difficult to get a completely accurate infrared
measurement of a target with a shiny or metallic surface.
The Thermometer allows you to adjust the unit’s
emissivity for the type of surface before measured.
Refer to Table 2. But it is only a typical case. You could
12
o
C / 302
o
F) and use the high emissivity
base on your own case and materials to have different
setting.
To adjust values for emissivity, follow the below
procedure:
1 .
2 .
3 .
Press SET to select emissivity set up, icon E on the
display is blinking. The Thermometer steps through
emissivity set up, trigger lock and switching
Press
hold
is 1.00.
Press
hold
is 0.10.
to access quick setting. The maximum value
to access quick setting. The minimum value
to increase the value by 0.01 or press and
to decrease the value by 0.0 or press and
Model 72-820: OPERATING MANUAL
o
C /
o
F.