Pro He/O₂ Trimix Analyzer
The Nuvair Pro He/O₂ trimix analyzer represents the most economical and contemporary model for the analysis of oxygen (O₂) and helium (He) in mixed gas with nitrogen. For an added cost savings, only one screen is used to cycle between He and O₂ readings. Available in two power models. Selected from 110/210V wall plug-in (9602-E) or rechargeable lithium battery with 110/230V charger (9602-LB).
The Nuvair Pro He/O₂ multigas analyzer for trimix divers is mounted in a rugged, water-resistant case. Each sensor has two user-programmable audible and visual alarms.
WARNING: Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. Most gas analyzers can be used to analyze a regulated gas sample flow, the contents of a gas cylinder, or the flow from a regulator. The flow rate of gas must equal 1-5 L/min. To produce this flow, a Flow Restrictor and Regulator (like the 400-100 Calibration Test Gas Regulator) may be required. A faulty Flow Restrictor can lead to a false analyzer reading. Flow Restrictors should be regularly tested with a Flow Meter. Inaccurate gas analysis can lead to serious personal injury or death.
Features
- Helium reading in any oxygen-helium-nitrogen mix in the range 0.0-100.0% of volume
- Oxygen reading in any oxygen-helium-nitrogen mix in the range 0.0-100.0% of volume
- Two (2) custom audible and visual alarms for each gas
- Thermal conductivity helium sensor developed for a marine sport environment
- O₂ sensor life up to 36 months
- He sensor life up to 10 years under normal conditions
- Robust waterproof hard case
- Automatic calibration of O₂ and He
Replacement Sensor
Specifications
| Sensor | Pro O₂ | Pro He |
|---|---|---|
| Flow Rate | 0.5-2 L/min | 0.5-1 L/min |
| Resolution | ±0.1% | 0.1% |
| Repeatability / Linearity | ±1% volume O₂ @ 100% O₂ applied for 5 min | ±2% over full scale |
| Accuracy | Within ±1% of full scale at constant temperature and pressure (0-1 atm) when calibrated with 100% oxygen | ±2% over full scale |
| Sensor Type | Electrochemical | Thermal Conductivity |
| Expected Sensor Life | Up to 36 months in air at 25°C/77°F and 50% rh | Up to 10 years |
| Range | 0-100% oxygen (max), 0-1% oxygen (min) | 0-100% helium in air, nitrogen or oxygen |
| Alarms | Two user-programmable audible and visual alarms | |
| Power | Select from: 110/210V wall plug-in, or Rechargeable lithium battery with 110/230V charger |
|
| Operating Temperature | 32-104°F (0-40°C) | 41 to 104°F (5 to 40°C) |
| Storage Temperature | 32-122°F (0-50°C) | 5 to 122°F (-15 to 50°C) |
| Operating Humidity | 0-99% rh (non-condensing) | 0-90% rh (non-condensing) |
| Power | Rechargeable lithium battery or 110/220 V wall plug-in | |
| Dimensions (L x W x H) |
3.6 x 8.8 x 7.5 in (9.3 x 22.5 x 19 cm) |
|
| Weight | 2 lb (0.95 kg) | |
