403125 Datasheet, PDF (4/8 Pages) Extech Instruments Corporation. – Digital Light Meter

Meter Description
1. LCD display
2. Pushbuttons:
• Backlight and PEAK button – Momentarily press this button to
activate/deactivate the Peak Hold function. The PMAX display icon will appear.
In the Peak Hold mode of operation, only the highest reading will be displayed.
Press and hold this button for 2 seconds to switch on the backlight. Press and
hold this button again for 2 seconds to turn the backlight off.
• RANGE button – Press to select the
desired lux or fc range. Each press of the
RANGE button selects a new range. The
available ranges are 20, 200, 2000, and
20,000 lux or foot candles. Displays in
the 20,000 range must be multiplied by
10.
• HOLD button – Press to freeze the
displayed value (the H icon will switch
on). Press again to exit the Data Hold
mode.
3. Sensor cable – Connects sensor to meter
4. Sensor (sensor cover not shown)
5. Sensor mounting plugs - Fits into docking
jacks at top of meter
6. Docking jacks – Sensor can be attached here
for storage or while measuring.
7. Function switch – Three positions OFF, LUX,
and FC
8. Handle and battery compartment (rear)
9. Analog output jack
4
403125 V3.1 9/06