HY-CDP22E Luminance Monitor
Brief IntroductionThe HY-CDP22E luminance monitor measures the level of luminance, or brightness, created by natural light at the tunnel entrance / exit to ensure that the visual perception of drivers
Brief Introduction
The HY-CDP22E luminance monitor measures the level of luminance, or brightness, created by natural light at the tunnel entrance / exit to ensure that the visual perception of drivers will be maintained, both day and night, by avoiding sudden variations in lighting levels and potential “black hole effect” when entering and exiting a tunnel.
The HY-CDP22E luminance monitor uses a specially designed, highly light-sensitive photocell, filtered to provide a spectral response close to that of the average human eye, to react to changes in light levels within the tunnel environment. This reaction is virtually instantaneous. The light receptor measures the average luminance within an acceptance angle subtending 20 Deg.
Features
CIE Approved measurement technology
Accurate measurement of tunnel entrance luminance
Designed specifically for tunnels
Rugged construction
Simple installation/operation
Isolated 4-20mA analogue outputs
Alarm relay output
Technical Specification
Detector | Silicon photo diode |
Measuring Angle | 20° |
Measurement Range | 0-7000 cd/m2 other measure range can be customized. |
Accuracy | ±3% |
Voltage | 100-240VAC |
Power Consumption | 15 Watt(include heating) |
Output | RS485(MODBUS) |
4-20mA(Isolated) | |
two way relay 2A@24VDC | |
Protection | IP66 |
Operating Temperature | -40~70℃ |
Operating Humidity | 0-100% |
Materials | Powder coated steel |
Dimensions | 370x189x167mm L x W x H |
Weight (each) | 3.5 Kg |
Mounting | Adjustable brackets(optional) |
Warranty | 24 Months |