Environmental Monitoring Solutions
The TunnelTech 601 Luminance photometer monitors the average luminance of a tunnel entrance and its surroundings. In accordance with Commission Internationale de l´Eclairage, (C.I.E.), publication 88, 1990 recommendations, the photometer monitors the average luminance within a 20-degree angle over a standard range of 0 – 6,500 cd/m2.
The detector is a metal/glass-encased silicon diode photocell that is filtered to give a response that mimics the performance of the human eye. The detector is perfectly linear within its measuring range and has an instantaneous response to changing light levels.
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The TunnelTech 601 Luminance photometer monitors the average luminance of a tunnel entrance and its surroundings. In accordance with Commission Internationale de l´Eclairage, (C.I.E.), publication 88, 1990 recommendations, the photometer monitors the average luminance within a 20-degree angle over a standard range of 0 – 6,500 cd/m2.
The detector is a metal/glass-encased silicon diode photocell that is filtered to give a response that mimics the performance of the human eye. The detector is perfectly linear within its measuring range and has an instantaneous response to changing light levels.
Measurements | Luminance |
Measuring Units | candela/metre squared – cd/m2 |
Measuring Range | 0 – 6500 |
Ambient Temperature | -20°C to +50°C |
Power Supply | 220VAC or 24VDC |
Construction | IP65 |
Analogue Outputs | 1 x 4-20mA current outputs as standard, |
Photodetector | metal/glass-encased silicon diode photocell |