HD450-en-GB_V1.6 4/15
7
Specifications
Range Specifications
Units Range Resolution Accuracy
Lux 400.0 0.1
± (5% rdg + 10 digits)
4000 1
40.00k 0.01k
± (10% rdg + 10 digits)
400.0k 0.1k
Foot candles 40.00 0.01
± (5% rdg + 10 digits)
400.0 0.1
4000 1
± (10% rdg + 10 digits)
40.00k 0.01k
Notes:
1. Sensor Calibrated to standard incandescent lamp (color temperature: 2856K)
2. 1Fc = 10.76 Lux
General Specifications
Display 4000 count LCD display with 40 segment bargraph
Ranging Four ranges, manual selection
Over range indication LCD displays ‘OL’
Spectral response CIE photopic (CIE human eye response curve)
Spectral accuracy Vλ function (f’
1
≤6%)
Cosine response f’
2
≤2%; Cosine corrected for angular incidence of light
Measurement Repeatability ±3%
Display rate Approximately 750 msec for digital and bargraph displays
Photo detector Silicon photo-diode with spectral response filter
Operating conditions Temperature: 0 to 40
o
C (32 to 104
o
F); Humidity: < 80%RH
Storage conditions Temperature: (-10 to 50
o
C (14 to 140
o
F); Humidity: < 80%RH
Meter Dimensions 170 x 80 x 40mm (6.7 x 3.2 x 1.6")
Detector Dimensions 115 x 60 x 20mm (4.5 x 2.4 x 0.8”)
Weight Approx. 390g (13.8 oz.) with battery
Sensor lead length 1m (3.2’)
Low battery indication Battery symbol appears on the LCD
Power supply 9V battery
Battery Life 100hrs (backlight off)
