Analyzer He/O₂

Precision Oxygen and Helium Gas Analyzer for Technical Diving

The Analyzer He/O₂ is a highly accurate device designed to measure oxygen and helium concentrations in diving breathing gases. It is an essential tool for technical divers using Nitrox and Trimix mixtures, ensuring safety and accuracy when preparing breathing gases for deep or complex dives.

Information

The Analyzer He/O₂ is characterized by exceptional accuracy and reliability, achieved through an innovative speed of sound measurement principle for determining helium concentration.
This method completely eliminates the need for replacing the helium sensor, reducing maintenance and ensuring consistent precision over time.

Another advantage of the Divesoft Analyzer He/O₂ is its multifunctional design.
It features a built-in gas mixing calculator, can be connected to a compressor for continuous monitoring of oxygen concentration during gas filling, and includes warning alarms.
An optional relay connection allows automatic compressor shutdown when critical gas concentration levels are exceeded.

Additionally, with optional measuring modules, the analyzer can measure electrical voltage and resistance, making it a useful diagnostic tool for checking diving lights, scooters, or bulbs.

The analyzer also recognizes other gases and gas mixtures used in diving.
In the case of a hypoxic mixture without any inert gas other than nitrogen, it displays a “FOUL AIR” warning to alert the user of a dangerous mix.
It can also identify argon and, in a special setting, measure its purity (detecting traces of air).

The oxygen electrochemical sensor and the built-in rechargeable battery come with a limited 12-month warranty.
Charging is done easily via a USB 2.0 AB cable.

Technical Specifications

• Dimensions: 82 × 200 × 37 mm (3 1/4 × 7 7/8 × 1 1/2 in)

• Weight: 720 g (1.6 lb)

• O₂ concentration range: 0–100%

• He concentration range: 0–100%

• Operating temperature: 0°C to +40°C (32–104°F)

• Operating pressure: Ambient (700–1100 mbar), equivalent to altitudes from 0–3000 m (0–10,000 ft)

• Gas throughput: 0.2 L/min

• Measurement basis: Speed of sound over 800 mm

• Measurement frequency: 2 kHz

• O₂ sensor: Divesoft R22 S (Molex connector)

• Power source: Rechargeable Li-ion battery

• Connection: Standard DIN valve (EN 144-2) for 200/300 bar (G 5/8" thread)

• Warranty: 24 months (12 months on battery and O₂ sensor)