MT-912 Calibration Instruction
Preparations:
a) Ambient temperature
:
24
℃±
2
℃。
b) Place the meter at the constant ambient temperature for around 4 hours to
stabilize it.
c) Turn on the standard light source device
Calibration steps
:
1. Keep pressing the “MAX/MIN” button and “ON/OFF” button at the same time,
and install the battery to power on the meter, LCD will display digits only without
any other icons, which indicates the meter enter into the calibration mode.
0Lux Calibration: cover the probe with the sensor cover to avoid any light enters into
the sensor area. Press“MAX/MIN” button to adjust the LCD shown value same as the
standard light source output value . After that it will automatically enter into 200LUX
calibration mode.
200Lux Calibration: Aim the sensor to the standard light source with output light at
200lux
, press “MAX/MIN”
button to adjust the LCD shown value same as the
standard light source output value. After that it will automatically enter into 2000LUX
calibration mode.
2000Lux Calibration: Aim the sensor to the standard light source with output light at
2000lux, press “MAX/MIN”
button to adjust the LCD shown value same as the
standard light source output value. After that it will automatically enter into 10K LUX