Maintain a comfortable, safe, successful diving operation with our rage of SDA gas monitors.

Product Overview

Analox’s comprehensive range of diving analyzers with options for: oxygen (O2), carbon dioxide (CO2), carbon monoxide  (CO), helium (He), Depth and Temperature and Humidity designed specifically for decompression chambers, diving bells and diver gas delivery. The SDA range was designed for gas detection with commercial diving in mind.

The monitor provides a full-colour display of the oxygen (O2) reading taken from an electrochemical sensor. The alarm set points and calibration can be achieved using the front panel user interface. The SDA O2 provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs. The monitor interfaces with our state of the art digital MEC sensor.
 
The SDA O2 oxygen monitor replaces the now obsolete Analox 1000 and is fully retrofittable as a direct replacement.

Maintaining a comfortable and safe chamber environment is vital to achieving a successful diving operation. The accuracies supplied by the SDA O2 are compliant with DNV, IMCA, Lloyds, ABS, and ADCi requirements/guidelines.
 
The SDA O2 is normally located in sat/dive control and the sensors can be either located at the panel or inside the chamber or diving bell.
 
We offer an optional flow panel to go alongside the SDA O2 which provides fine control after the sample has been reduced from the chamber. Both the SDA O2 and the optional flow panel can be provided as either rack or panel mount.

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The SDA dual oxygen (O2) monitor measures oxygen (O2) readings in both partial pressure (mbar O2) and as percent volume (%O2).

The dual SDA O2 is a panel/rack mountable oxygen monitor with audio/visual alarms which comprises of an SDA monitor and a MEC sensor module, including the oxygen (O2) cell. It is designed to be highly modular and flexible so it can be easily integrated into custom atmospheric monitoring solutions.

The dual SDA display has the ability to display oxygen (O2) readings in both partial pressure (mbar O2) and as percent volume (%O2). This will allow the end user to read the levels of oxygen (O2) in either parameter without having to carry out any conversion calculations.

A pressure sensor is required for the SDA O2 to enable the display to be presented in partial pressure (mbar O2), this must take a reading from the same location as the gas measurement.

Information is communicated via Ethernet to the SDA O2 display to calculate a partial pressure readout.

The unit monitors the chamber's internal atmosphere by the use of external sensors. The alarm set points and calibration can be achieved using the front panel user interface. The SDA O2 provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs.

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The SDA carbon dioxide (CO2) monitor provides a full-colour display and can be used alongside a digital sensor like the 5S Mk3 to maintain a comfortable and safe saturation diving chamber.

The alarm set points and calibration can be achieved using the front panel user interface. The SDA carbon dioxide (CO2) provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs. The SDA carbon dioxide (CO2) monitor interfaces with our state of the art digital 5S Mk3 sensor.
 
The SDA carbon dioxide (CO2) monitor replaces the now obsolete Analox 5001 and is fully retrofittable as a direct replacement.
 
Maintaining a comfortable and safe chamber environment is vital to achieving a successful diving operation. The accuracies supplied by the SDA carbon dioxide monitor are compliant with DNV, IMCA, Lloyds, ABS, and ADCi requirements/guidelines.
 
The SDA carbon dioxide (CO2) monitor is normally located in sat/dive control and can be supplied in rack or panel mount configurations.

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The SDA CO monitor provides a full colour display of a carbon monoxide (CO) reading and is fast and accurate - designed for commercial diving in mind.

The gas monitor reads results from a state-of-the-art, long-life digital electrochemical sensor. These results are shown on a full colour display.

The alarm set points and calibration can be achieved using the front panel user interface. The SDA CO provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs.

The SDA CO replaces the obsolete Analox 3000 and is fully retrofittable as a direct replacement.

Diving system classification societies and industry bodies such as IMCA require/suggest that carbon monoxide levels are maintained at very low levels in a dive system as carbon monoxide is highly toxic.

Carbon monoxide (CO) can enter the diving system through an air compressor or a gas transfer compressor. It could also be present in the delivered gas and is metabolised by the divers so is produced in the chamber during operations.

The SDA CO can be located in sat/dive control or at the compressor. Both the SDA CO and the optional flow panel can be provided as either rack or panel mount.

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The SDA CO+ carbon monoxide (CO) monitor provides a full colour display of the carbon monoxide (CO) reading taken from an advanced electrochemical cell, as well as and offering pinpoint accuracy. The CO+ adheres to strict CO standards including NORSOK 4-100, EH74/2 and BS8478 and has data logging capabilities. 
 
The SDA CO+ carbon monoxide monitor (CO) can be located in sat/dive control or at the compressor.

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The SDA Helium (He) monitor is part of a range of panel/rack mountable atmosphere detection monitors designed with commercial diving in mind.

The SDA He monitor provides a full-colour helium (He) reading. To achieve maximum accuracy, it must be used in conjunction with the SDA O2 with the networking option selected.
 
The alarm set points and calibration can be achieved using the front panel user interface. The SDA He provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs.
 
Helium is an expensive and vital saturation diving commodity. Monitoring the purity of the heliox in the reclaim system is vital for safety and for operations to remain cost effective.
 
The SDA He is normally located in sat/dive control and can be supplied in rack or panel mount configurations. Alternatively the SDA He can be placed in the helium reclaim area.

Contact us today to see how the SDA Helium can keep purity levels high and costs low in your saturation diving system.

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The SDA ROC is used on some of the world's most advanced diving systems including a new build vessel for the BP Exploration Shah Deniz II project in the Caspian Sea.

To ensure diver safety it is essential to monitor and control the rate of change (ROC) of pressure to avoid hazardous rates of decompression. If the ROC is too high there is an increased risk of divers suffering the bends. 

The monitor provides alarms that are based not on the depth level but on the rate at which the depth is changing.

The SDA ROC monitors the pressure of an occupied dive chamber and triggers an alarm if the rate of change is too high. It does this by sampling readings from a depth sensor and applying an algorithm to smooth the effects of any sudden changes. The SDA uses the readings to calculate the ROC value which it then compares against its pre-set alarm thresholds.

The SDA ROC sensor is attached to a habitation chamber, hyperbaric lifeboat or diving bell. To comply with DNV Offshore Standard 402, a digital interface is used between the sensor and the SDA. The ROC alarm constants can be changed to suit different chamber sizes and configurations. Two alarm thresholds can be selected: meters/feet of sea water per minute or meters/feet of sea water per hour.

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The SDA Temperature and Humidity can help monitor comfortable and safe levels of temperature and humidity in diving chambers and dive systems.

The SDA Temperature and Humidity monitor provides a full-colour display of both temperature and humidity.
 
The alarm set points can be adjusted using the front panel user interface and the SDA Temperature and Humidity provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs (for 1 reading). The monitor interfaces with a state of the art dual temperature and humidity probe.
 
The SDA Temperature and Humidity replaces the now obsolete Analox 4000 (Temperature) and Analox 7000 (Humidity).
 
Maintaining a comfortable temperature in a diving chamber or dive system is vital for the comfort and well-being of the divers and is required by classification bodies and industry guidelines. Relatively small changes in temperature can prove to be dangerous due to the thermal conductivity of helium.
 
Humidity levels also need to be maintained for the comfort and well-being of the divers. If the humidity level is too high this can encourage microbial growth which can cause health issues in the chamber.
 
The SDA Temperature and Humidity monitor can be located in sat/dive control or at the compressor. The probe is located either in the chamber or in the gas pipework:
 
Chamber Version
The probe is mounted inside the chamber is ideal for monitoring levels in a hyperbaric chamber, lifeboat or diving bell to help ensure a comfortable and safe living and working environment is maintained in line with industry guidelines.
 
Inline Version
The probe is mounted inside the gas pipework, ideal for monitoring the breathing gas supply temperature and humidity in line with classification requirements such as the ABS rules for building and classing underwater vehicles, systems and hyperbaric facilities.

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The SDA Depth provides a full-colour display of depth and pressure to help ensure the safety of your divers. The SDA is a range of panel/rack mountable atmosphere monitors originally designed with commercial diving in mind. The monitor provides a full-colour display of the depth/pressure reading.
 
The alarm set points and calibration can be achieved using the front panel user interface. The SDA Depth provides audio/visual alarms, optional data-logging and 4-20mA/relay outputs. The monitor interfaces with a pressure sensor provided by Analox or can be set up to interface with a third party sensor which provides a 4-20mA output.
 
The SDA Depth replaces the obsolete Analox 6000.
 
The accuracies supplied by the SDA Depth are compliant with DNV, IMCA, Lloyds, ABS, and ADCi requirements/guidelines.
 
Monitoring the depth of diving chambers is vital to the whole operation. Depth readings are also used with the gas readings to calculate the partial pressures to ensure the safety of the divers.
 
The SDA Depth is normally located in sat/dive control and can be supplied in rack or panel mount configurations. The pressure sensor is mounted in the hyperbaric environment.
 
Contact us today to see how the SDA Depth is compliant with international commercial diving guidelines.

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"We've been selling Analox products, well, forever. The Analox SDA's are the most reliable and flexible diving analyzers on the market. That's why we are proud to be a master distributor " Mike Malone - Vice President Sales & Marketing - Amron International Inc.

  • Intelligent sensors flag when calibration and sensor change are due
  • Designed with the latest digital technology
  • Easily configurable with with interchangeable sensors and software
  • Large, bright, full colour display
  • Datalogging option
  • Ethernet data output option

Oxygen (O2)
Carbon Dioxide (CO2)
Helium (He)
Carbon Monoxide (CO)
Temperature & Humidity

The Analox team is here to answer any questions you might have about the product or gas safety. 

We also have a 24/7/365 emergency support helpline available to all customers. 

Analox, always by your side.

Fixed
Panel Mount
Rack Mount

SDA CO2 Panel Mount Interactive Image

SDA CO2 (Panel Mount) Interactive Image

SDA O2 Panel Mount Interactive Image

SDA O2 (Panel Mount) Interactive Image