Nitrogen Dioxide Detector in IP 55 Dust-Proof Box 20PPM

VGS.DU-NO2

Nitrogen dioxide detector in dust-proof box. The electrochemical cell assures alarm signal through 4-20mA proportional output. Measure area 0 to 20 ppm. Can be connected to addressable control panel through suitable module. Can be used with relay board on double threshold control panel with pre-alarm 10mA and alarm 20mA.

• Self-diagnostic procedure to control the detector main operational parts, both hardware and sensing element
• Zero point tracking to compensate possible drifts due to thermal or physical variations of the sensor
• Digital filter employed in the digital analysis of the analogue values sampled
• Hysteresis cycle applied to the outputs to eliminate continuous switching
• Watch-dog for the microprocessor control.