DT-1309 Digital Illuminance Meter
The digital illuminance meter is a precision instrument used to measure illuminance (Lux, footcandle) in the field. It is meet CIE photopic spectral response. It is fully cosine corrected for the angular incidence of light. The illuminance meter is compact, tough and easy to handle owing to its construction. The light sensitive component used in the meter is a very stable, long-life silicon photo diode and spectral response filter.
Light-measuring levels ranging form 0.1Lux~0.1kLux/0.01FC~0.01kFC,repeatedly
High accuracy and rapid response
Data-hold function for holding measuring values
Unit and sign display for easy reading
Meter corrected for spectral relative efficiency
Correction factor need not be manually calculated for non-standard light sources.
Short rise and fall times
Peak-hold function for tracing the peak signal of light pulse with least duration and keep it.
Capable of selecting measuring mode in Lux or FC scale alternatively.
Auto power off 20minutes
Maximum and minimum measurements
Easy to read large backlit display
USB output connect with pc
Display :3-3/4 digit LCD with high speed 40 segment bar graph.
Measuring Range: Lux,400.0 Lux,4000 Lux,40.00 KLux and 400.0 KLux /40.00 FC,400.0 FC,4000 FC,40.00 KFC.NOTE: 1FC=10.76Lux,1KLux=1000Lux,1KFC=1000FC
Over range Display: LCD will show “OL” symbol.
Spectral Response: CIE Photopic. (CIE human eye response curve).
Spectral Accuracy: CIE Vλ function f1’ less than or equal to 6%
Cosine Response: f2’ less than or equal to 2%
Accuracy: ±5% rdg±10d.(<10,000Lux)
Sampling Rate: 1.5 times/sec of analog bar-graph indication;1.5times/sec of digital display.
Photo Detector: One silicon photo diode and spectral response filter.
Operating temperature & Humidity :0 degree centigrade to 40 degree centigrade & 0% to 80% RH.
Storage Temperature & Humidity :-10 degree centigrade to 50 degree centigrade & 0% to 70% RH.
Power Source: 1 piece 9V battery
Photo detector Lead Length: 150cm (approx.)
Original box with instruction manual, battery., USB cable and CD software.