Products
HALO OK
Leading choice for ultra-high purity gas users
Detect gas quality upsets before they damage your process. Using Tiger Optics’ HALO OK oxygen analyzer, you can verify oxygen impurity levels with part-per-trillion accuracy, drift-free stability and instantaneous response. You’ll find our system exceptionally easy and fast to install, and effortless to maintain, with built-in zero verification. 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).
With its patented catalytic conversion technique, utilizing a minute amount of hydrogen to cleanly and safely convert oxygen to moisture, the OK offers a fully laser-based solution for Continuous Quality Control of your process. Based on powerful Cavity Ring-Down Spectroscopy, the HALO OK aligns with the SEMI F-112 standard for moisture dry-down characterization of gas systems. Pair the new HALO OK with our HALO KA for ppt-level moisture measurement to enjoy the many advantages of profit-boosting CRDS technology for both critical contaminants.
Designed for trace-level oxygen analysis, the HALO OK offers:
- Industry-leading parts-per-trillion detection capability
- Unprecedented speed of response
- Wide dynamic range
- Absolute measurement (freedom from need for calibration gases)
- Low maintenance and cost of ownership
- Compact, portable package, ideal for both fixed and mobile cart installation
- Direct measurement in many matrices
Applications
- Gas Quality Control
- Gaseous CRMs & Calibration Gas Mixtures
- High-Purity Gases & Systems
- Hydrogen Fuel Cells
- Research & Development
Industries
Laboratory & Scientific
Stack, Process & CEMS
Detection Capability
| Detection and Matrix | Range | LDL (3σ) | Precision (1σ) @ zero |
|---|---|---|---|
| O2 in He | 0 – 0.5 ppm | 50 ppt | 17 ppt |
| O2 in Ar | 0 – 1 ppm | 90 ppt | 30 ppt |
| O2 in H2 | 0 – 2 ppm | 150 ppt | 50 ppt |
| O2 in N2 | 0 – 2.5 ppm | 200 ppt | 70 ppt |
| O2 in CO2§ | 0 – 5 ppm | 5000 ppt | 300 ppt |
| §Special configuration required, must be specified at time of order. |
Specifications
| Performance | |
|---|---|
| Operating range | See Detection Capability table |
| Detection limit† (LDL, 3σ/24h) | See Detection Capability table |
| Sensitivity (3σ) | See Detection Capability table |
| Precision (1σ, greater of) | ± 0.75% or 1/3 of Sensitivity |
| Accuracy (greater of) | ± 4% or 1/2 of 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, 10 Ra surface finish |
| Leak tested to | 1 x 10-9 mbar l / sec |
| Gas connections | 1/4” male VCR inlet and outlet |
| Sample inlet pressure | 10 − 125 psig (1.7 − 9.6 bara) |
| Sample flow rate | 0.5 – 1.8 slpm (gas dependent) |
| Sample gases | Most inert matrices |
| Gas temperature | Up to 60°C |
| H2 supply requirements* | ~15 sccm, 20 − 125 psig |
| Dimensions, H x W x D | |
| Standard sensor | 8.73″ x 19.0″ x 23.6″ (222 mm x 483 mm x 599 mm) |
| Weight | |
| Standard sensor | 45 lbs (20.4 kg) |
| Electrical | |
| Alarm indicators | 2 user programmable, 1 system fault, Form C relays |
| Power requirements | 100 − 240 VAC, 50/60 Hz |
| Power consumption | 450 Watts max. |
| Signal output | Isolated 4−20 mA |
| User interfaces | 5.7” LCD touchscreen, 10/100 Base-T Ethernet, RS-232 |
| 802.11g Wireless (optional), Modbus TCP (optional) | |
| Certification | CE Mark |
| Patents | |
| U.S. Patent #7,277,177 • U.S. Patent # 7,255,836 | |
| *H2 supply (maximum 10 ppm H2O and O2 impurity) is required for sample conditioning via catalytic conversion. |
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| For enhanced safety, a mixture of 3% H2/97% N2 can be used as an alternative to pure H2. |
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| †LDL is dependent upon the quality of the sample gas and the integrity of the sampling system. |
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