401027 Datasheet, PDF (2/4 Pages) Extech Instruments Corporation. – Pocket Foot Candle Light Meter

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
Display
Sensor
Out of range indication
Sampling time
Power Supply
Power consumption
Operating temperature
Operating Humidity
Weight
Dimensions
Accessories
Range Specifications
Range
0 to 199.9 Fc
200 to 1999 Fc
Custom LSI microprocessor based design
0.5" (13mm) 3-1/2 digit (1999 count) LCD display
Photo-diode with color correction filter (meets CIE regulations)
'1 ' is displayed
Approx. 0.4 seconds
9V battery
Approx. 2.7mA
32^oF to 122^oF (0^oC to 50^oC)
< 80% RH
0.43 lb. (195g)
Meter: 5.2x2.8x1" (131x70x25mm);
Probe: 3.2x2.2x0.3" (82x55x7mm)
Probe and 9V battery
Resolution
0.1 Fc
1 Fc
Accuracy
± (5% + 4 digits) Full Scale
Meter Description
1. Display
1
2. ON/OFF switch
3. Range switch
2
4. Light sensor
3
4
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
2
401027 V2.0 6/08