Benetech GM320 Instruction Manual

Infrared thermometer
Instruction manual
MODEL: GM320
(Page 1)
A. Introduction
This infrared thermometer is used for
measuring the temperature of the object's
surface, which is applicable for various hot,
hazardous or hard to reach objects without
contact safely and quickly.
This unit consist of Optics, Temperature
Sensor Signal amplifier, Processing circuit and
LCD Display. The Optics collected the infrared
energy emitted by object and focus onto the
Sensor. Then the sensor translates the energy
into an electricity signal. This signal will be
turned out to be digital shown on the LCD after
the signal amplifier and processing circuit.
B. Warning & Cautions
1. Warning:
To avoid the potential situation may cause harm
or damage to people, please pay attention to
the following items:
1) Before you use this unit, check on the
plastic housing carefully. If there is any
damage, do not use it
2) Do not point laser directly at eye or
indirectly off reflective surfaces.
3) Do not use this unit in the environment of
explosive gas, steam or dusty.
2. Caution:
To avoid the damage of the unit or the target,
please protect from the following situations:
1) EMF (electro-magnetic fields) from arc
welders, or induction heaters.
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2) Thermal shock caused by high temperature
changes allow 30 minutes for unit to
stabilize before use.
3) Do not leave the unit on or near objects of
high temperature
C. Distance to Spot size
1) When take measurement, pay attention to
the D stance to Spot Size. As the Distance (D)
from the target surface increases, the spot
size (S) of the area measured by the unit
becomes larger. The Distance to Spot size of
the unit is 12:1
***This unit is equipped with a laser, which is
used for aiming.
2) Field of view: Make sure the target is larger
than the unit's spot size. The smaller the
target the closer measure distance. When
accuracy is critical, make sure the ta get is at
least twice as large as the spot size.
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