Scotopic/photopic table

The meter is widely used by professional lighting designers, researchers, bulb manufacturers, and energy consumption monitoring units.

The spectral response it measures follows the CIE photopic and scotopic spectra and has the following calculation functions:
S/P Ratio
Visually effective luminous level
Brightness perception

application:
Architectural lighting design
Lighting efficiency measurement
Energy efficient design
· Dark-vision lighting research

Instrument Specifications:
Dynamic range 2.6 x10^6 (6.5 digits)
Accuracy: Within 0.2% FS
· Integral non-linearity 0.003%
Temperature coefficient 50 PPM/°C Max.
Sampling rate 3 per second
Screen refresh rate 10 per sec.
Operating temperature 0 to 50°C (non-condensing)
· Battery 4xAA Alkaline batteries, more than 40 hours of continuous use
External power supply 9-12V AC or DC adapter. 100mA min.
Weight 18 oz. (510 g)
Dimensions: 4”W x 1.75”D x 7.6”H (10 x 4.35 x 19.3 cm)
LCD size 2.5” x 0.5” (6.4 x 1.3 cm)
· Program control 9-key keypad

Photopic detector technical specifications:
Spectral response: Follows CIE photopic luminous efficiency curve (400-700nm) Figure 1
Angular response: 5% for angles <60°
Range: PMA2130 - 150,000 Lux, 14,000 ft-cd
Display resolution: PMA2130 - 1 Lux, 0.1 ft-cd
Operating temperature: 32 to 120 °F (0 to +50 °C) no precipitation
Diameter: 1.6" (40.6 mm)
Height: 1.8" (45.8 mm)
Weight: 7.1 oz. (200 grams)

Dark vision detector technical indicators :
Spectral response: Follows CIE dark-view luminous efficiency curve (400-600nm) Figure 1
Angular response: 5% for angles <60°
Range: PMA2131 - 150,000 Lux, 14,000 ft-cd
Display resolution: PMA2131 - 1 Lux, 0.1 ft-cd
Operating environment: 32 to 120 °F (0 to +50 °C) no precipitation
Diameter: 1.6" (40.6 mm)
Height: 1.8" (45.8 mm)
Weight: 7.1 oz. (200 grams)