Operation
Viewing the Last Measured Value
In the off state, short press the trigger to turn on the thermometer, it will
display the last measurement data that was held before the last shutdown.
Temperature Measurement
Aim the thermometer at the target, then pull and hold the trigger, the laser
indicator on the LCD display shows that the laser is turned on and points to
the target, the measured temperature value will be displayed on the LCD,
and the maximum or minimum temperature of the target area can be
measured by scanning up, down, left and right according to the laser spot
indication.
Note: The measurement distance must be determined by the size of the
measured targ
et according to the “distance to spot size ratio (D:S)” and “field
of view”.
Hold
After the trigger is released, the last measured value and the HOLD icon will
remain on the LCD display. If there is no operation for 8 seconds, the
thermometer will automatically shut down and save the last measured value.
Unit Conversion
In the power-on state, open the battery cover and short press the °C/°F
button to switch the temperature unit to Celsius (°C) or Fahrenheit (°F).
Distance to Spot Size Ratio (D:S)
As the distance (D) from the target being measured increases, the spot size
(S) on the measured area becomes larger. The relationship between the
distance and the spot diameter is as shown in the figure below.
The spot diameter represents 90% of the energy in the circle. The maximum
D:S (10:1) will be obtained when the thermometer is 400mm (16’’) from the
target resulting in a spot diameter of 40mm (1.6’’).
