Spark CO2

Advancing Accurate, Consistent & Drift-Free CO2 Measurements

The removal of contaminants prior to cooling and distillation is essential to the cryogenic air separation process. If not detected quickly, impurities such as carbon dioxide (CO2) can freeze in the downstream cryogenic equipment causing damage and product spoilage. Tiger Optics’ Spark CO2 analyzer affords fast, accurate response and clean-up, with robust, drift-free performance.

The Spark CO2 builds on Tiger Optics’ longstanding leadership for trace monitoring of critical impurities in pressurized gases. Based on powerful Cavity Ring-Down Spectroscopy (CRDS), with a proprietary laser-locked cell, the Spark is free of drift, guaranteeing consistent and reliable trace CO2 detection in nitrogen and other inert gases. Highly specific to the target molecule, CRDS also prevents cross-interferences from distorting your measurement.

Plus, there is no need to perform costly and time-consuming zero and span calibrations, saving both time and money with continuous, on-line service. With freedom from calibration and maintenance, the Spark CO2 gives you exceptional ease of use and extremely low Cost of Ownership.

Compact, affordable and powerful, the new Spark CH2 brings you:

  • Trace CO2 detection limit down to 250 ppb
  • Wide dynamic measurement range
  • Drift-free performance
  • Immunity to vibration
  • No spectral interferences
  • Compact standalone footprint or rack-mountable
  • Low Cost of Ownership
  • Simple operation
  • Serani™ interface software for remote analyzer control & data analysis.


  • Air Separation Units & Nitrogen Plants
  • Gaseous CRMs & Calibration Gas Mixtures
  • High-Purity Gases & Systems
  • Hydrogen Fuel Cells
  • Research & Development.

Download Specifications


Laboratory & Scientific

Stack, Process & CEMS

Detection Capability

Detection and Matrix Range LDL (3σ) Precision (1σ) @ zero
CO2 in N2 0 – 1500 ppm 250 ppb 80 ppb
CO2 in Clean Dry Air (CDA) 0 – 1500 ppm 250 ppb 80 ppb


Operating range See Detection Capability table
Detection Limit (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, 10 Ra surface finish
Gas connections 1/4″ male VCR inlet and outlet
Inlet pressure 10 – 125 psig (1.7 – 9.6 bar)
Flow rate ∼0.6 slpm (in N2), gas-dependent
Sample gases Most inert and passive matrices
Gas temperature Up to 60°C
Dimensions, H x W x D
Standard sensor 8.73″ x 8.57″ x 23.6″ (222 mm x 218 mm x 599 mm)
Sensor rack (fits up to two sensors) 8.73″ x 19.0″ x 23.6″ (222 mm x 483 mm x 599 mm)
Standard sensor 32 lbs (14.5 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 interfaces 5.7″ LCD touch screen, 10/100 Base-T Ethernet, RS-232
802.11g Wireless (optional), Modbus TCP (optional)
U.S. Patent #7,277,177

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