The HY-OPTIMA Model 1700AS Process Hydrogen Analyzing System provides a complete solution for process hydrogen measurement in refineries, chemical plants, air separation units and industrial gas manufacturing plants. The system is comprised of a  hydrogen specific analyzer in a NEMA 4X enclosure with sampling systems and is capable of operating in a broad spectrum of process conditions.


Hydrogen detection and measurement is a critical challenge in many industries including:

  • Electric power grid transformers,
  • Petroleum,
  • Chemical (including chlorine and caustic soda production),
  • Nuclear power plants,
  • Semiconductor,
  • Industrial hydrogen,
  • And fuel cells.

Sensor Performance

Hydrogen Sensitivity Range0.5% to 100% hydrogen by volume at 1 ATM

Response Time: T90 < 30 sec
Ingress Protection: IP64 capable
Recommended Verification Interval: 90 days
Product Life Expectancy: 10 years
± 0.3% absolute for 0.5 to 10% H2
± 1.0% absolute for 10 to 100% H2
± 0.2% absolute for 0.5 to 10% H2
± 0.4% absolute for 10 to 100% H2
± 0.2% absolute for 0.5 to 10% H2
± 0.4% absolute for 10 to 100% H2
± 0.2% absolute for 0.5-10% H2
± 0.4% absolute for 10-100% H2

Interface Options

Analog Output: 4 mA to 20 mA
Serial Communication: RS422

Operating Conditions

Inlet Conditions:
Inlet pressure: 30-510 PSIG*
Process temperature: -20 to 60ºC*
Operating Voltage: 15VAC/230VAC
Enclosure Classification: NEMA 4X
Sample Flow Rate: .1 to 10 SLPM*

Included Accessories

Intrinsically Safe Power Barrier
Armored Power / Analog Cable: 4 m
Serial Interface Cable: 4 m (custom lengths optional)

Optional Accessories

Single Channel Intrinsically Safe Analog Output
Barrier (with or without relays)
Single Channel Intrinsically Safe RS422 Interface
Barrier Vortex Cooler
Enclosure Heater: 200 Watts, 1.74 Amps at 115 VAC


Length: 24’’
Height: 24’’
Width: 10’’

Support & Warranty

1 year all parts and labor
Field support available upon request



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