What are the characteristics of the brightness detector outside the tunnel hole? Wind path introduction

What are the characteristics of the brightness detector outside the tunnel hole? Wind Path Introduction【FT-DW1】 सुरङ्गात् बहिः कान्तिििर्धारकस्य किं लक्षणम् ? वातस्य परिचयः Tunnel light monitor can meet the requirements of the entire tunnel lighting control, and the controller of the preset control mode automatically switches the lighting switch according to the preset parameters according to the measured value of the light source, providing a good value
for tunnel lighting.

Its design fully meets the requirements of CIE on tunnel lighting measurement, and can meet the "Highway Tunnel Ventilation Lighting Design Code", and its overall design can fully meet the requirements
of the harsh working environment in the field.

Installation: The tunnel light intensity monitor is installed on the wall inside the tunnel, in order to avoid damage due to accidents or car wreckage, it needs to be installed at a height of about 4m, and the appropriate position
from the tunnel entrance is greater than 10m.

The tunnel brightness monitor is installed in an appropriate position
of about 4m from the road surface outside the tunnel and about 120-200m from the tunnel entrance.

High reliability and low maintenance
.

New microprocessor technology, fully digital operation, easy
installation and commissioning.

Product features: 1.
There is a good linear relationship
between brightness and photocurrent.

2.
The device comes with its own LCD screen, which can display the status operation, fault alarm and data storage function
.

3.
Multiple ranges are available
.

4.
The photocells are calibrated at room temperature of 25 °C, and 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.
A variety of output mode selection, convenient
data transmission.