Class I, Div. 2 for hydrocarbon feedstocks and syngas

Just in time to meet the growing demand for high-quality hydrogen feedstock, Tiger Optics’ CO-rekt™ analyzer brings the renowned benefits of Cavity Ring-Down Spectroscopy to your HyCO and SMR plants. This powerful, proven technology offers safe, fast and stable performance that allows you to efficiently manage your PSA beds to maximize yields and minimize contamination. The CO-rekt’s dynamic range spans over four orders of magnitude, from parts-per-billion to parts-per-million. Other benefits include:

Slam the door! Our analyzers are impervious to vibration and proven to stand up to long-term use in industrial applications. Designed in collaboration with one of the world’s leading hydrogen manufacturers, the CO-rekt is guaranteed to increase uptime and decrease risk. Freedom from calibration and low cost of ownership allows users to operate with confidence and ease in the field.


  • Drift-free performance: Avoid the downtime and labor cost tied to older technology’s need for frequent calibration. Tiger’s technology is so stable that it does not require calibration. No more need to store and to manage calibration cylinders or pay for complex sampling systems. And, remember, the less need for intervention, the less that can go wrong.
  • No consumables and spare parts: The CO-rekt is all solid state. Lose those pesky choppers and save on repair costs, as well as inventory management and storage space.
  • Packaged for plant use: With Class I, Div. 2 certification, the CO-rekt combines a purged NEMA enclosure with a space-saving wall-mount configuration designed for narrow instrument sheds.
  • Insensitive to vibration: No more plant trips triggered by the mere slam of a door to the instrument shed. Protects up-time bonuses and avoids fines.



Detection and Matrix Range LDL (3σ) Precision (1σ) @ zero
CO in H2 0 − 2000 ppm 150 ppb 50 ppb
CO2 in H2 0 − 1500 ppm 500 ppb 170 ppb
H2O in H2 (low range) 0 − 16 ppm 1.0 ppb 0.4 ppb
H2O in H2 (high range) 0 − 400 ppm 6 ppb 2 ppb
CH4 in H2 (low range) 0 − 8 ppm 1.6 ppb 0.6 ppb
CH4 in H2 (high range) 0 − 100 ppm 7 ppb 2.5 ppb


Operating range See Detection Capability table
Detection limit (LDL, 3σ/24h) See Detection Capability table
Precision (1σ, greater of) ± 0.75% or 1/3 of LDL
Accuracy (greater of) ± 4% or LDL
Speed of response < 3 minutes to 90%
Environmental conditions 10°C to 40°C, 30% to 80% RH (non-condensing)
Storage temperature -10°C to 50°C
Gas Handling System and Conditions
Wetted materials 316L stainless steel (optional corrosion-resistant material), 10 Ra surface finish
Gas connections 1/4” compression fittings inlet, outlet and purge
Leak tested to 1 x 10-9 mbar l / sec
Inlet pressure 10 − 125 psig (1.7 − 9.6 bara)
Flow rate Up to 1.8 slpm (gas dependent)
Sample gases Nitrogen, hydrogen and syngas (inquire for custom matrices)
Gas temperature Up to 60°C
Dimensions, H x W x D
Standard sensor (in NEMA 4X enclosure) 17.5″ x 22″ x 15.2″ (445 mm x 559 mm x 386 mm)
Standard sensor 82 lbs (37.2 kg)
Alarm indicators 2 user programmable, 1 system fault, Form C relays
Power requirements 90 − 240 VAC, 50/60 Hz
Power consumption 40 Watts max
Signal output Isolated 4−20 mA per sensor
User interface 5.7” LCD touchscreen
Class I, Div. 2, Groups B, C & D
U.S. Patent #7,277,177


Related products

Ask a quote