EasyView Digital Light Meter Extech EA31

EasyView Digital Light Meter Extech EA31 Meter Description 1. LCD display 2. Range button 3. Power ON/ OFF button 4. lux / fc selection button 5. Data HOLD button 6. MAX/ MIN button 7. Photo sensor ( lens cover not shown) ( Tripod mounts on rear of sensor) General Specifications Display 3-1/ 2 digit, 2000 count LCD Over range indication LCD displays ‘ OL’ Spectral response CIE photopic ( CIE human eye response curve) , Cosine corrected Spectral accuracy CIE Vk function ( f’ 1, 6% ) Measurement Repeatability ± 2% Calibration Calibrated to a standard incandescent lamp at color temperature 2856º K Temperature coefficient ± 0.1% per o C Sampling rate 2.5 times per second Photo detector Silicon photo-diode and spectral response filter Operating conditions Temperature: 0 to 40o C ( 32 to 104o ; Humidity: < 80% RH Storage conditions Temperature: -10 to 50o C ( 14 to 140o F) ; Humidity: < 80% RH Dimensions 150 x 72 x 35mm ( 5.91 x 2.8 x 1.4" ) Weight Approx. 320g ( 11.3 oz) with battery Photo Detector Dimensions 92 x 60 x 29mm ( 3.62 x 2.36 x 1.14” ) Detector cable length 91cm ( 3’ ) approximately Low battery indication “ BT” appears on the LCD Power supply 6 ‘ AAA’ cells; Battery life approx 400 hours