
Luminance analyser
A self-contained intelligent analyser that measures the level of brightness or luminance created by natural light around tunnel portals.
When integrated with a managed tunnel lighting system, its measurements ensure that drivers’ visual perception is maintained day and night, avoiding sudden variations and potential “black hole effects” when entering and exiting a tunnel.
Features
Benefits
- CIE approved measurement of L20
- Viewing angle can be specified 10°- 40°
- Rugged 316 stainless steel design to withstand extreme weather conditions
- Simple installation & mounting
- Optional wash-wipe facility to minimise maintenance requirements
- Direct connection to host controller
- Onboard SCADA / PLC interface options:
- Current outputs
- Digital relays
- RS485 (Modbus RTU)
