Amprobe LM631A Digital-Light-Meter - Manual (Page 7)

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Instructions
CERTIFICATIONS AND PRECAUTIONS
The LM631A instrument is EN61326-1 certified for EMC and EMI.
Do not use any damaged part.
Do not operate instrument in an explosive atmosphere. It is
recommended that you read the safety and operation instructions
before using the Light meter. The symbol on the instrument indicates
that the operator must refer to an explanation in this manual. It is
recommended that you read the safety and operation instructions
before using the light meter.
INTRODUCTION
This instrument is a portable easy use 3½ digit, compact sized digital
light meter designed for simple one hand operation with the reading in
lux or fc units. Its controls are:
1. Sensor Head.
2. RANGE button.
3. PEAK HOLD (50 mS pulse light) button and Back light switch.
4. DATA HOLD button.
5. Lux / fc / OFF selector
6. mV output jack.
7. LCD display.
Back Light: Press the ‘PEAK’ button for greater than 2 seconds to toggle
the backlights ON and OFF.
PEAK- HOLD button: Press the ‘PEAK’ button to toggle the PEAK
Hold function ON and OFF. In the PEAK-HOLD mode, the “
P MAX “
annunciator is displayed and the last reading is held on the display. If
the new reading exceeds the previous reading and the new value is
displayed.