Performance
Hydrogen Sensitivity Range:
0.5% to 100% hydrogen at 1 ATM on a
volume basis in a single or multi-component
gas background
Response Time: T90 less than 30 sec
Ingress Protection: IP64 capable
Recommended Verification Interval: 90 days
Product Life Expectancy: 10 years
Accuracy(*):
± 0.15% absolute for 0.5 to 10% H2
± 0.50% absolute for 10 to 100% H2
Drift/week:
± 0.10% absolute for 0.5 to 10% H2
± 0.20% absolute for 10 to 100% H2
Repeatability:
± 0.10% absolute for 0.5 to 10% H2
± 0.20% absolute for 10 to 100% H2
Linearity:
± 0.10% absolute for 0.5-10% H2
± 0.20% absolute for 10-100% H2

Interface Options
Input Voltage Range: 8 VDC to 13 VDC
Input Current: 1.0 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 / 1 A
SPDT relays with both normally open (N.O.)
and normally closed (N.C.) contacts

Operating Conditions
Process Gas Tolerance:
CO tolerance < 100 ppm
H2S tolerance < 1000 ppm
Operating Humidity: 0% to 95% RH
Flow Rate: 0.1 slpm to 50 slpm
Pressure: 0 to 7 bar gauge, 0 to 100 psi gauge
Process Gas Temperature Range: -20ºC to 100ºC
Operating Temperature Range: -20ºC to 40ºC
Storage Temperature Range: -40ºC to 50ºC
Calibration Background Gas: Nitrogen

Adapter Fittings
½ in. MNPT thread
½ in. FNPT thread
-8 SAE/MS thread size
... and many other industry standards

Dimensions
Total Length: 9.1 in.
Length of Enclosure: 6.7 in.
Length of Tube: 2.4 in.
Width: 3.4 in.
Depth: 1.4 in.