Submarines

The AA – Centralized Atmosphere Analyzer

Capable of measuring up to 30 gasses, from up to 20 compartments via sample lines, the AA ensures crew safety throughout the submarine.

Utilizing 3 gas sensing modules including SIL2 O2, a functionally safe oxygen monitor, mass spectrometer and FTIR spectrometer, the AA monitors for;

• Life support gasses which include oxygen (O2), carbon dioxide (CO2) and carbon monoxide (CO).
• Fire gasses which are monitored include hydrogen cyanide (HCN) and nitrogen oxide (NO).

COSAMS – Carbon Monoxide Submarine Atmosphere Monitoring System

Carbon monoxide (CO) can be generated onboard a submarine in many different ways;

• routine operations such as cooking
• fumes of a diesel engine
• emergency operations such as an onboard fire incident

The COSAMS system offers continuous, real time monitoring of CO in the living accommodation and machinery spaces onboard a submarine. The system also has a 90 day data logging facility, allowing for records to be stored should they ever be needed.

CO can be incredibly dangerous, you cannot smell, taste or see it and the side effects of CO poisoning can be devastating. At 35 ppm, with exposure around 6-8 hours, you may see physical symptoms such as headache, fatigue, dizziness and/or nausea. At 200 ppm these symptoms can happen with only 2-3 hours of exposure. When you reach 400 ppm the symptoms will come within 1-2 hours of exposure, but fatality may occur around 3 hours. As the levels rise the time it takes for symptoms to show becomes less and less, and so does the time it takes for the exposure levels to become fatal. It is vital for submariners safety that there is continual monitoring of carbon monoxide onboard.

Why should you use a specialist CO monitor like the COSAMS?

Off the shelf carbon monoxide detectors use standard electrochemical sensors that are extremely cross-sensitive to hydrogen. This means that they are not suitable for use on submarines as they will give out false CO readings. Using infra-red measuring techniques, instead of electrochemical sensors, Analox engineers managed to solve this problem, ensuring the safety of all submariners onboard. (Read more in depth information about that on the COSAMS product page)

DAMS – Distributed Atmosphere Monitoring System

The DAMS was created by Analox engineers to effectively monitor a range of gasses (up to 5) in multiple locations onboard a submarine that is more than 197ft (60m) long. It uses a PLC (programmable logic controller) in a centralized location to monitor all gasses simultaneously.

Each DAMS build uses various gas testing technologies to ensure that it meets the specifications for the submarine, including:

• gas filter correlation (GFC) to monitor carbon monoxide (CO)
• electrochemical for oxygen (O2) enrichment and depletion
• nondispersive infrared (NDIR) for carbon dioxide (CO2)
• R134a (refrigerants)
• catalytic bead technology for hydrogen (H2).

This system is proven in use and the Analox team are proud to be able to share (what little we can!) about the project. In 2018 Saab awarded Analox a contract to supply gas monitoring systems for the Blekinge-class (A26) next generation submarines. Read more about it here. 

Throughout the project the Analox team was dedicated to providing exceptional service, working closely with Saab, engaging in detailed discussions to solve their specific challenges. We are proud to be part of the system spec, build and installation of that project.

Sub Aspida: A portable life line for atmospheric monitoring 

The Sub Apida is designed to be a portable emergency backup to the main atmosphere monitoring system. The rugged and compact Sub Aspia offers both partial pressure oxygen and carbon dioxide monitoring in one. Meaning that in an emergency situation, you have your main gasses covered, ensuring the safety of the submariners in the area.

The Sub Apida may be small, but it was designed with the pressure sensitivities in mind. Both sensors in the monitor are pressure corrected, meaning that you get accurate readings over a pressure range of 700 – 1200MB.

Sub Mk3P, the new generation of DISSUB monitors

The Sub Mk3P is the newest monitor in the Analox submarine escape and rescue product line. The Sub Mk3P is the next generation of DISSUB monitors, replacing the widely successful Sub MkIIP DISSUB analyzer in 2021. The Sub Mk3P monitors the partial pressure of oxygen (O2) and carbon dioxide (CO2) along with measuring the depth, pressure and battery life – all of which are key factors within a DISSUB emergency situation.

Meeting the NATO STANAG 1476:2014 (ANEP/MNEP-86) for submarines with an escape capability, the Sub Mk3P now allows for maintenance staff to perform routine servicing and sensor updates in the dockyard – saving costs and reducing downtime.

Designed in conjunction with submariners and submarine agencies, the unit’s highly recognizable orange housing ensures the Sub Mk3P is easy to identify in case of emergency.

Sub MkIIIF, an effective hyperbaric monitor for SRV’s

The Sub MkIIF provides hyperbaric monitoring systems for use within the submarine rescue vehicles (SRV) and surface decompression chambers. It is a fixed atmosphere monitoring system which not only provides the partial pressure O2 and CO2 readings but it also displays pressure, temperature and relative humidity of the environment too, giving you all the information you need when taking part in a rescue operation. The unit’s bright red illuminated display makes it simple to use and easy to read in tense DISSUB situations.

Custom solutions, your challenge is our passion

The Analox team has worked with numerous Navies and Prime Contractors globally. Each individual submarine has its own unique gas monitoring needs in order to achieve efficient, effective and safe operations.

The Analox submarine product portfolio provides effective gas monitoring solutions, but we understand that unique and specialized requirements are also needed and Analox has a custom design and development team available to solve your challenge.

Our dedicated team will guide you through a consultation process, ensuring we fully understand what your challenge is and what you need from us. As part of the custom build, Analox offers:

• Factory Acceptance Tests (FAT)
• Commissioning
• Sea Acceptance Tests (SAT)
• User/operator training
• Maintenance training
• Through-life support packages

Every submarine has its own needs and standards, trust Analox to help you meet them.