HY-ALERTA™ 1600 Intrinsically Safe Area Hydrogen Monitor

General Details

H2scan’s HY-ALERTA™ 1600 Intrinsically Safe Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit.

The monitor is designed for either ceiling or wall mount and has an RS422 capability that extends an intrinsically safe interface from the sensor to the controller to several hundred feet.  H2scan’s hydrogen-specific sensor technology has no cross sensitivity to other combustible gases, thus eliminating false positive alarms and ensuring safety system reliability.

Technical Details


Hydrogen Sensitivity Range:

0.4% to 5% hydrogen by volume,
10% to 125% hydrogen lower flammable limit

Accuracy:  ± (0.03 x indication + 0.2) percent hydrogen by volume 
Typical Response Time:  T90 of 60 sec maximum 
Ingress Protection:  IP64 capable 
Calibration Interval:  90 days 
Product Life Expectancy:  10 years

Interface Options   

Power Barrier Input Voltage:  24 VDC nominal 
Power Barrier Input Voltage Range:  20 VDC to 28 VDC 
Intrinsically Safe Sensor Input Voltage:  10 VDC 
Sensor Input Voltage Range:  5 VDC to 28 VDC 
Input Power:  10 W 
Analog Output:  4 mA to 20 mA 
Serial Communication:  RS422

Operating Conditions

Operating Humidity:  0% to 95% RH 
Operating Temperature Range:  -20ºC to 40ºC
Storage Temperature Range:  -40ºC to 50ºC
Calibration Background Gas:  Air

Included Accessories    

Intrinsically Safe Power Barrier 
Armored Power / Analog Cable: 4 m 
4m Serial Cable
Calibration Cup
IS Power Barrier

Optional Accessories    

Single Channel Intrinsically Safe Analog Output Barrier (with or without relays) 
Single Channel Intrinsically Safe RS422 Serial Interface Barrier 
Serial Interface Cable: 4 m (custom lengths available) 
Armored Power / Analog Cable (custom lengths available)


Total Length:  8.1 in. 
Total Width:  4.4 in. 
Depth:  1.6 in.