Overview
The TunnelTech 602 Illuminance photometer monitors the average illuminance within a tunnel in accordance with Commission Internationale de l´Eclairage, (C.I.E.), publication 88, 1990 recommendations, the photometer monitors the average illuminance over a range of 0 – 20,000 lux.
The detector is a metal/glass encased silicon diode photocell which 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.
Features & Benefits
- Compliant with Commission Internationale de l'Eclairage, (C.I.E), publication 88, 1990.
- Measurement of tunnel illuminance - 0 -20,000 lux.
- Calibrated using standards traceable to UK National Physical Laboratory.
- Accuracy +/-3%.
- Metal/glass silicon photodiode, VI filtered to human spectral response.
- Rugged Aluminium housing to IP65.
Product Specification
| Measurements | Illuminance |
| Measuring Units | Lux |
| Measurement Range | 0 – 20,000 |
| 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 |
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