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H2scan’s HY-ALERTA™ 600 Fixed 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 the interface from the sensor to the controller to several hundred feet. H2scans 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: ± (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

Input Voltage Range: 8 VDC to 13 VDC
Input Current: 0.5 A
Analog Outputs:
Output Voltages - OR - Output Currents
• 0 VDC to 5 VDC • 4 mA to 20 mA
• 1 VDC to 5 VDC • 0 mA to 20 mA
• 0 VDC to 4 VDC • User-specific mA range
• 0.5 VDC to 4.5 VDC
• User-specific VDC range
Serial Communication Options: RS232 or RS422
Relay Contacts: Two programmable 60 VDC / 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

Dimensions

Total Length: 7.2 in.
Mounting Bracket Length: 5.6 in.
Total Width: 4.4 in.
Mounting Bracket Width: 4.0 in.
Depth: 1.6 in.