72-820 TENMA, 72-820 Datasheet - Page 13

• 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

Model 72-820: OPERATING MANUAL
As the distance (D) from the target being measured
increases, the spot size (S) of the area measured by
the unit becomes larger. The spot size indicates 90%
encircled energy. The maximum D:S is obtained when
the Thermometer is 600mm (60 in) form the target
resulting in a spot size of 20mm (2 in). See Figure 6.
Figure 6. Distance and Spot Size
Make sure that the target is larger than the spot size.
The smaller the target, the closer you should be to it.
See Figure 7.
Figure 7. Field of View
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