Measurement Operation; Battery Replacement - Major tech MT691 Instruction Manual

10. Measurement Operation

1. Hold the meter by its Handle Grip and point it toward the surface needing
to be measured.
2. Pull and hold the Trigger to turn the meter on and begin testing. The
display will light up if the battery is good. Replace the battery if the display
does not light up.
3. Release the Trigger and the HOLD display icon will appear on the LCD
indicating that the reading is being held. In HOLD status, press the UP
button to turn on or off the laser. And press the DOWN button to turn on
or off the backlight.
4. The meter will automatically power down after approximately 10 seconds
after the trigger is released. (Unless the unit is locked on).
Note: Measurement considerations
• Holding the meter by its handle, point the IR Sensor toward the object
whose temperature is to be measured. The meter automatically
compensates for temperature deviations from ambient temperature. Keep
in mind that it will take up to 30 minutes to adjust to wide ambient
temperatures to be measured followed by high temperature
measurements, some time (several minutes) is required after the low (and
before the high) temperature measurements are made.
• This is a result of the cooling process, which must take place for the IR
sensor.

11. Battery Replacement

1. If the battery power is not sufficient the
LCD will display
2xAAAbatteries.
2. Open the battery cover to replace the
batteries in the instrument. Close the
cover to carry on using the instrument.
" "
replace with
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