R404 GAS DETECTOR IN DUST-PROOF BOX

VGS.DU-R404A

R404 gas detector with Infrared sensor. In EEx Zone 2 certified container. Proportional output 4-20mA. Zero Tracker to counter possible drifts. Continuous self-diagnosis of the system. Optional 3-relay output card. Operating voltage 12-24Vdc. Certificate ATEX II3G. 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.
Operating voltage
12-24Vdc
Power consumption
max. 180mA
Operating temperature
-10 ° C to + 55 ° C
Storage temperature
-25 / + 60 °C
Relative humidity
up to 90%
Proportional output
4-20 mA (default)
Relay output (optional)
10 mA (pre-alarm) / 20mA (alarm)
Weight
400g
Dimension (LxHxD)
106 x 180 x 62 mm
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