5
Warning
Model 72-820: OPERATING MANUAL
Introduction
The Model 72-820 Infrared Thermometer (hereafter, the
“Thermometer”) can determine the surface temperature
by measuring the amount of infrared energy radiated
by the target’s surface. They have different distance to
spot (D:S) figure and different temperature range, details
see the contents.It features a temperature range of
0oF~1000oF and a distance-to-spot ratio of 12:1.
The non-contact infrared thermometer features low
power consumption design, allowing extended use
without the need to replace batteries. The highly intuitive
design allows fast easy temperature measurement for
increased efficiency in use.
The Thermometer may also be powered from a standard
computer USB port. This can prove very convenient in
situations were repeated battery changes are not
practical. The Thermometer will automatically select
between battery and USB port power.
Safety Information
A warning identifies conditions and actions that
pose hazards to the user. To avoid electrical
shock or personal injury, follow these guidelines:
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Do not point laser directly at eye or indirectly
off reflective surfaces.
Before using the Thermometer inspect the
case. Do not use the Thermometer if it appears
damaged. Look for cracks or missing plastic.
Replace the battery as soon as the battery
indicator appears.
Do not use the Thermometer if it operates
abnormally. Protection may be impaired.
When in doubt, have the Thermometer
serviced.
Do not operate the Thermometer around
explosive gas, vapor, or dust.
To avoid a burn hazard, remember that highly
reflective objects will often result in lower
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