H2scan’s HY-ALERTA™ 600 Fixed Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000ppm 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 the 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.
Performance
Hydrogen Sensitivity Range:
0.4% to 5.0% hydrogen by volume
10% to 125% hydrogen lower flammable limit
Accuracy: ± (3.0% of indication + 2000ppm)
Typical Response Time: T90 less than 30 sec
Ingress Protection: IP64 capable
Calibration Interval: 90 days
Product Life Expectancy: 10 years
Interface Options
Input Voltage Range: 8VDC to 13VDC
Input Current: 0.5A
Analog Outputs:
Output Voltages - OR - Output Currents
• 0VDC to 5VDC • 4mA to 20mA
• 1VDC to 5VDC • 0mA to 20mA
• 0VDC to 4VDC • User-specific mA range
• 0.5VDC to 4.5VDC
• User-specific VDC range
Serial Communication Options: RS232 or RS422
Relay Contacts: Two programmable 60VDC/1A
SPDT relays with both normally open (N.O.)
and normally closed (N.C.) contacts.
Operating Conditions
Operating Temperature Range: -20ºC to 40ºC
Storage Temperature Range: -40ºC to 50ºC
Operating Humidity: 0% to 95% RH
Calibration Background Gas: Air
