ACG+

COMPRESSED BREATHING AIR MONITOR

Say goodbye to fiddly tube tests and expensive lab analysis and say hello to a reliable, accurate monitor which can help you meet EN12021, DEF-STAN 68-284, CGA, CSA and OSHA compliance.

Key Features

Provides continuous monitoring 24/7
Low maintenance and is easy to install and maintain
Provides 90 days of datalogging which you can easily retrieve via a USB connection
Cost effective alternative to colorimetric tube testing
Supplied as either a fixed or portable version depending upon your needs
Can be used on any breathing air compressor
Digital display

Resources for the ACG+

Industries that use the ACG+ to monitor their compressed breathing air output

In the highly precise world of compressed breathing air, true professionals demand proven results, consistent reliability along with turnkey installation and maintenance. The Analox team recognizes this and has built the ACG+ to answer these challenges.

Can the ACG be used to test the quality of breathing air used to protect personnel from hazards posed by a hazardous substance covered by the COSHH regulations?

In part yes, the ACG can measure the quality of breathing air to the standards required for the gasses it measures, O2, CO2, CO, VOC’s and H2O. The required standards listed in the Approved Code of Practice (ACOP 9) are the same as BS EN 12021.

Where the risk assessment for a process highlights a gas that is not measured by the ACG. I.e. a hazardous substance used, produces a harmful gas in quantities greater than safe exposure limits, such that it is a danger. Depending upon the gas in question it may be possible to test for the gas using the ACG’s sample support function with a colorimetric tube specific to the gas. If this is not possible then the ACG would not be suitable as the only test method employed under the COSHH regulations.

How often would you suggest I take an oil mist sample at the ACG’s sample support port?

The frequency of routine sample testing depends upon the level of usage of the compressor, how close to the design limits it is used and the scale of impact that contaminated gas would have on the compressed air system to which it is attached. As a minimum we would recommend performing an oil mist sample test at least once every three months, to coincide with the calibration checks of the other sensors in the ACG.
Another good practice is to perform an oil mist sample test when the water, CO or VOC sensors alarm as they may be indicating a compressor problem, particularly if the source of the alarming contaminant is not obvious.

Can I use an ACG+ to monitor compressors using synthetic oil?

Because many of the mechanisms that generate oil vapor/mist also generate other contaminants such as VOC’s, CO and water vapor, the ACG+ is suitable for monitoring compressors using both synthetic oil and mineral oil.

The ACG+ monitors for these contaminants which, when detected, can give an indication that problems may be present with the compressor (resulting in the generation of oil mist). These indications can be used as a prompt to perform an oil mist test using the sample support feature.

Can I use the sample support port for any type of color metric tube?

Yes, this feature adds flexibility to the user to use a variety of tubes for any type of gas.

How do I replace the CO sensor?

The ACG+ CO sensor should be replaced approximately every 2 years (or as required). This procedure is detailed in the ACG+ user manual.

We also have created an instruction video for this procedure, we hope you find this useful:

How do I replace the dew point sensor?

The ACG dewpoint (water vapor) sensor should be factory calibrated/ exchanged every 2 years. This procedure is detailed in the ACG+ user manual.

How do I replace the O2 sensor?

The ACG O2 (oxygen) sensor should be replaced approximately every 2 years (or as required). This procedure is detailed in the ACG+ user manual.

EMERGENCY SERVICES

Fire departments SCBA

DIVING

Commercial Diving, SCUBA Diving, Offshore Diving

SHIPS

Frigates, Coastguards

MEDICAL

Medical Breathing Air

MANUFACTURING

Paint spraying

Take a closer look

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

I like the simplicity of the ACG and the speed of the Dewpoint sensor.
US NAVY

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.

ACG+ Legislation

The ACG+ is the only compressed breathing air analyzer currently in use that meets DEF-STAN 68-284 standards for measuring compressed breathing gasses on military vessels. Additionally, the ACG+ also makes it easier for those same vessels to become compliant with EN12021, CGA, CSA and OSHA regulations.

If you have any other legislation requirements that you wish to discuss, please give us a call.

Technical Specification


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

	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 vapour sensor using capacitive technology

Analox have a proven track record with an excellent reputation. They offer a major step forward in air testing technology with best practice on a high level of assurance.
DES MULLEN - JOINT SERVICE SUB AQUA DIVING CENTRE (JSSADC)

A Reliable Tool

The ACG+ offers continuous monitoring of up to five different gas variables (oxygen, carbon monoxide, carbon dioxide, volatile organic chemicals 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.

Optional Extras & Accessories

Click here to view all ACG+ spares and accessories

6 Month Service Kit

12 Month Service Kit

24 Month Service Kit

Li-Ion Battery & Charger

JAMES FISHER (JFD)

When the James Fisher Defence Group (JFD) had a need for continuous breathing air monitoring, the international sub-sea operations and engineering company looked to The Analox Group for help with this unique challenge.

View Case Study