The detection of visibility detector r, that is, the value (R) in the meteorological sense, is determined by the intensity of light scattered by tiny particles suspended in the atmosphere (smoke, dust, dense fog, rain and snow). By measuring this extinction coefficient and then converting it into a standard formula, the visibility value required by the human eye can be obtained. The use of forward scattering measurement principles approved by the World Meteorological Organization ensures a larger measurement range and makes the detected data more representative. The visibility detector can adapt to various severe weather conditions and can detect a variety of different precipitation categories and haze (smog and sand) or clear weather. The integrated design makes the internal cable layout more reasonable.
Technical indicators
Measurement principle
Light scattering measurement principle
Protection level
Measuring range
Meters (standard type) The maximum measurable meter can be expanded as needed
Data Acquisition
Less than minutes
Measurement Accuracy
Resolution
Power Supply
~D~ (optional) required for heating option~
Working Temperature
hd...+
Digital interface
/R/R (half-duplex)/R (optional) ~ Analog current relay status output
Operating humidity
h%
Features
●Relay alarm switch output
●Large-capacity D card storage can be expanded to save data for more than a year
●Using optical components The lens faces downward and is equipped with a protective cover to effectively prevent precipitation droplets or dust from entering the lens and reduce contamination on the probe surface
●This design provides accurate measurement results and reduces the need for maintenance
●Inside the detector The special heating device can prevent condensation and fogging on the optical mirror
Visibility Detector HC Network
Shanghai Xunfei USRegal visibility detector is affordable and industry-leading