Product features:
 
1. There is a good linear relationship between brightness and photocurrent.
 
2. The equipment has its own LCD screen, which can display the status, fault alarm and data storage functions.
 
3. Multi-range option.
 
4. When the photocell is calibrated at room temperature of 25 ℃, the error is automatically corrected to less than 1% in actual operation.
 
5. The measurement characteristics are linear and can respond instantaneously to light changes.
 
6. Multiple output modes are selected, and data transmission is convenient.
 
Installation method:
 
HY-LXP21 tunnel light intensity monitor is installed on the wall of the designated area in the tunnel. In order to avoid the damage caused by accidents or automobile wreckage, HY-LXP21 should be installed at an appropriate position with a height of about 4m and a distance of more than 10m from the tunnel entrance. HY-CDP22 tunnel brightness monitor is installed at an appropriate position about 4m away from the road surface and about 120-200m away from the tunnel entrance. With high reliability and low maintenance. The latest microprocessor technology, complete digital operation, easy installation and debugging.
 
Technical parameters:
 
 
Model: HY-CDP22 (outside tunnel) Measuring range: 0 ~ 7000 cd/m2 Tunnel brightness detector Technical index:
 
Measurement error: ± 1%
 
Measurement angle: vertical ≥ 20 horizontal ≥ 20
 
Analog output: 4 ~ 20mA (proportional to measurement range)
 
Digital output: RS485 (default) or RS232 (optional)
 
Power supply: 100 ~ 220VAC 50Hz
 
Size: 376*136*164mm (Length * Width * Height)
 
 
Model: HY-LXP21 (inside tunnel) Tunnel Light Intensity Detector Technical Index:
 
Product model: HY-LXP21 (inside the hole)
 
Measurement range: 0 ~ 20000 Lux (default)
 
0 ~ 500 cd/m2 (optional)
 
0 ~ 10cd/m2 (optional)
 
Measurement error: ± 1%
 
Measurement angle: vertical ≥ 20 horizontal ≥ 20
 
Analog output: 4 ~ 20mA (proportional to measurement range)
 
Digital output: RS485 (default) or RS232 (optional)
 
Power supply: 100 ~ 220VAC 50Hz
 
Overall dimensions: 376*136*164mm (Length * Width * Height)