LaserTrace 3 O2

Delivering your best measurement

Detect gas quality upsets before they can damage your processes. Using Tiger Optics’ LaserTrace 3 O2 analyzer, you can verify oxygen impurity levels with part-per-trillion accuracy, drift-free stability, and virtually immediate response. You’ll find our system exceptionally easy and fast to install, and effortless to maintain, with built-in zero verification. It measures in bulk gases, specialty gases, and gas mixtures. And its robust design—free of moving parts—results in an analyzer that has a high Mean Time Between Failure (MTBF) rate and a very low Cost of Ownership (CoO).

Designed for trace level contamination analysis, the LaserTrace 3 O2 offers:

  • Industry-leading parts-per-trillion detection capability
  • Unprecedented speed of response
  • Widest available dynamic range
  • Absolute measurement (freedom from calibration gases)
  • Flexibility: up to four (4) measurement points per electronics module
  • Extremely low cost of ownership
  • Electronics module compatible with existing LaserTrace sensor modules


  • Gaseous CRMs & Calibration Gas Mixtures
  • High-Purity Gases & Systems
  • Research & Development

Learn More


Laboratory & Scientific

Stack, Process & CEMS

Detection Capability

Detection and Matrix Range LDL (3σ) Precision (1σ) @ zero
O2 in N2 0 – 2.5 ppm 100 ppt 40 ppt
O2 in He 0 – 0.5 ppm 50 ppt 9 ppt
O2 in Ar 0 – 1 ppm 50 ppt 17 ppt
O2 in H2 0 – 2 ppm 75 ppt 25 ppt
O2 in CO2§ 0 – 5 ppm 5000 ppt 300 ppt
§Special configuration required,
must be specified at time of order.


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) ± 3% or LDL
Speed of response < 3 minutes to 95%
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” male VCR inlet and outlet
Leak tested to 1 x 10-9 mbar l / sec
Sample inlet pressure 10 − 125 psig (1.7 − 9.6 bara)
Flow rate 0.5 – 1.8 slpm (gas dependent)
Sample gases Most inert, toxic and passive matrices
Gas temperature Up to 60°C
Dimensions, H x W x D
Electronics unit 14″ x 19″ x 14″ (356 mm x 483 mm x 356 mm)
O2 sensor (rackmount only) 8.75″ x 19″ x 27″ (222 mm x 483 mm x 686 mm)
Sensor rack
(fits 1 H2O and 1 O2 sensor)
8.75″ x 19″ x 27″ (222 mm x 483 mm x 686 mm)
Electronics unit 32 lbs (14.5 kg)
O2 sensor 60.5 lbs (27.5 kg)
Alarm indicators User programmable setpoints (1 per sensor), Form C relays
Power requirements 90 − 240 VAC, 50/60 Hz
Power consumption 200 Watts max.
Signal output Isolated 4−20 mA per sensor
User interfaces 10.4” LCD touchscreen, PS/2 for mouse and keyboard
10/100 Base-T Ethernet, 2 USB ports, RS-232
U.S. Patent # 7,277,177 • U.S. Patent # 7,255,836

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