Description
Technical Specification
ACG |
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| Power | 24V DC | |||||||||
| Optional battery power | NiMH or Li-ION | |||||||||
| Optional mains adaptor | Universal input 95 to 250 V AC, 50/60 Hz | |||||||||
| IP Rating | IP45 | |||||||||
| Response Time | T90 <120 seconds T90 <15 minutes H2O sensor | |||||||||
| Temperature | Operating: −5 °C to 50 °C / 23°F to 122°F Storage: −10 °C to 60°C / 14°F to 140°F | |||||||||
| Flow rate | 0.5L per minute (max) | |||||||||
| Inlet Pressure | 5-10 Bar Gauge (Optional regulator can be purchased) | |||||||||
| Humidity | 0-99% RH (Non Condensing) | |||||||||
| Outputs | 1 x normally open relay contacts 1 x normally closed relay contacts 3 x 24 V DC switched output | |||||||||
ACG+ SENSORS |
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| O2 Sensor | CO2 Sensor | CO Sensor | VOC Sensor | Water Vapor Sensor | |
| Range | 0 to 50% | 0 to 1000 ppm | 0 to 20 ppm | 0 to 100 ppm | 0 to 100 mg/m3 |
| Accuracy | ±(0.035% O2 + 1% of reading + ±(0.035% O2 + 1% of reading + 0.15% of reading/°C) | ±(25 ppm CO2 + 1% of reading + 1 ppm CO2/°C) | ±(1 ppm CO + 5% of reading + 0.1 ppm CO/°C) | ±(1 ppm VOC + 5% of reading + 0.25% of reading/°C) | ±(0.15 mg/m3 H2O + 20% of reading) |
| Technology | Analox MEC intelligent electrochemical oxygen sensor | Analox 5S3 intelligent NDIR sensor | Analox MEC intelligent electrochemical sensor | Analox MEC intelligent PID sensor | Water vapor sensor using capacitive technology |
ACG+ Front
- Display

- Sample/Calibration gas inlet
- Gas outlet for timed sample support (section 5.17)
- Gas inlet/purge valve
- External power connection (Either by rechargeable battery pack or external PSU)
- USB port
- Up button
- OK button
- Down button
- Mute button
- Context sensitive buttons (function depends on current context)
ACG+ Left Side 
- Exhaust
- Exhaust
- Breather
- Humidifier (Optional)
- M16 cable gland (Optional)
- Override keyswitch (Optional)
ACG+ Right Side 
- Exhaust
- Blow out blanking plug
A Proven Solution
Analox understands the unique demands of military vessels operating in diverse locations and situations. For more than 30 years, Analox has been working with military decision-makers representing more than two dozen nations. Analox products are currently protecting sailors aboard vessels representing the Royal Navy, Royal Norwegian Navy, Royal Netherlands Navy and United States Navy.
The Analox Team of engineers and product development specialists created the ACG+ for work in multiple environments, addressing a variety of situations and applications.
In early 2021, the International Association of Oil and Gas Producers (IAGP) released updated standards for diving operations. The Analox ACG+ is a proven tool for commercial diving professionals maintaining these standards on a daily basis.
A Reliable Tool
The ACG+ offers continuous monitoring of up to five different gas variables (oxygen, carbon monoxide, carbon dioxide, volatile organic compounds and water vapor) and simultaneously displays results for testing and calibration purposes. This eliminates potential delays and downtimes while test results are sent out for analysis.
The ACG+ has also made cumbersome colorimetric tubes obsolete by drastically reducing the potential for human error in gas analysis. The continuous monitoring also has virtually eliminated the need for time-consuming spot checks.
The ACG+ simultaneously scans for O2, CO2, CO, VOCs and water vapor, making it one of the most versatile tools any vessel can utilize. The automatic data log provides additional peace of mind for decision makers.
A Cost Effective Solution
You can’t put a price on safety, reliability and peace of mind. The Analox development team created the ACG+ to combine multiple tasks simultaneously, reducing the need for multiple analyzer units, costly test tubes, and often, extended times in port for repairs.
The ACG+ is available in either a fixed location model or convenient portable units. This adaptability provides designers, procurement officers and equipment specialists some options in closed quarter situations.
A Tool, Easy To Install And Maintain
The Analox team understands the complexities and challenges that accompany equipment installation. That is why our 24/7 technical support department was created. Instant solutions and technical support is always just a call or email away.
While each ACG+ unit can monitor up to five gasses simultaneously, each analytical system operating in the ACG+ is independent of the others. This means sensors can be replaced individually without needlessly causing downtime.
An Easy Choice
The Analox ACG+ has been proven effective in military situations around the world. The unit’s continuous and specific monitoring capabilities make it an easy choice for key decision-makers.







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