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Infrared Thermometer
5
V. OPERATION INSTRUCTIONS
• Measuring Trigger
To measure a temperature, point the unit at an object and
pull the trigger. Be sure to consider distance-to-spot size
ratio and field of view. The laser is used for aiming the
target for reference. The temperature reading will be
updated on the LCD. When the operator releases the
trigger, the reading will automatically be held on the LCD
for 10 more seconds. After 10 seconds this thermometer
will power down itself to save battery.
• Distance to Spot Ratio (D/S)
You have to make sure that the detection area you want
to measure is larger than the required spot size to get a
correct reading. The temperature you get is an average
temperature of the detected region. The smaller the target,
the shorter distance is required for the measuring.
(Please refer to the diagram on the side of the unit)
• Emissivity
Emissivity is a term used to describe the energy-emitting
characteristics of materials. The higher of this value
means the more capability of radiation emittance the
materials has. Most organic materials and painted or
oxidized surfaces have an emissivity of 0.98. Metal
surfaces or shiny materials has a lower emissivity and
400
Measuring Distance
Unit : mm
800
Distance : Spot = 8 : 1
52
22
200
113
Spot Size