401027 V2.0 6/08
2
Introduction
Congratulations on your purchase of the Extech Pocket Foot Candle Light Meter which
measures and displays light intensity in foot candle units. Two ranges can be selected
(200.0 and 2000 Fc). The precision color-corrected photo-diode sensor provides 5%
accuracy.
Specifications
Circuit
Custom LSI microprocessor based design
Display
0.5" (13mm) 3-1/2 digit (1999 count) LCD display
Sensor
Photo-diode with color correction filter (meets CIE regulations)
Out of range indication
'1 ' is displayed
Sampling time
Approx. 0.4 seconds
Power Supply
9V battery
Power consumption
Approx. 2.7mA
Operating temperature
32
o
F to 122
o
F (0
o
C to 50
o
C)
Operating Humidity
< 80% RH
Weight
0.43 lb. (195g)
Dimensions
Meter: 5.2x2.8x1" (131x70x25mm);
Probe: 3.2x2.2x0.3" (82x55x7mm)
Accessories
Probe and 9V battery
Range Specifications
Range
Resolution
Accuracy
0 to 199.9 Fc
0.1 Fc
200 to 1999 Fc
1 Fc
± (5% + 4 digits) Full Scale
Meter Description
1. Display
2.
ON/OFF switch
3. Range
switch
4. Light
sensor
Meter Operation
1.
Slide the ON/OFF Switch to the ON position.
2.
Fold out the meter's rear tilt stand and set the meter on a desktop.
3.
Select range "B"
4.
Hold the Light Sensor with the white lens facing the light source to be measured. The
sensor can also be placed on the desktop facing in the direction of the light source.
5.
Read the light measurement on the LCD display.
6.
If the measurement is less than 200 fc, select the lower ”A” range
1
2
3
4
