Crown copyrightCourtesy of BAE

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Analox has been an active supplier to the submarineescape and rescue community since 1997. Oursuccess in this market stems from our innovativedevelopment of miniaturised, low power infra redsensors capable of performing accurately athyperbaric pressures. Our portable multigas monitoris the market leading analyser for operation in adistressed submarine (DISSUB). Our fixedanalysers are the decentralised system ofchoice for Submarine Rescue Vessels anddecompression chambers.

Analox has been a leading international supplierto the commercial diving market since 1981, inwhich divers are confined to saturation divecomplexes for 30 to 45 day periods. Analoxequipment is used to monitor and control thechamber atmosphere to ensure it can sustainlife, and is not polluted with contaminants.

Key Analox projects include;

• Decentralised hyperbaric monitoring systemsfor NSRS SRV & TUP

• Bespoke hyperbaric monitoring system withbuilt in redundancy for the Astute class

• Hyperbaric monitoring systems for a numberof internationally operated SRVs

Key Analox products;

• Sub MkIIP - the only NATO compliant multigasanalyser for submarine escape

• Sub MkIIIF - the fixed hyperbaric system ofchoice of SRV manufacturers

Submarine Escape & Rescue

1. The design, manufacture and supply of AnaloxSub E-IR15P, the first hyperbaric continuousreal time analyser for Submarine Escape &Rescue. This unit provides critical informationon the state of the DISSUB atmosphere to thesenior survivor and crew. This unit was suppliedto the Royal Navy for use in all British submarineescape compartments. The Sub E-IR15P is nowmore than 15 years old, and in 2000 wasreplaced by the Sub MkIIP.

The Sub MkIIP is currently the only continuousanalyser capable of meeting the requirementsof NATO STANAG 1320 Ed 4; Minimumrequirements for atmospheric monitoringequipment located in submarines with escapecapability. The Sub MkIIP has been put throughextensive testing, DISSUB & Survivex exerciseswith favourable outcomes. Over 500 units arein active service with more than 14 nationsincluding the UK, Canada, USA, Norway,Australia, France, Brazil, Italy and theNetherlands. The unit has been supplied directlyand through submarine builders like HDW andDCNS.

The Sub MkIIP is designed to operate over a0.8 to 10 Bar pressure range, 0 to 40°C temperature range and at humidity’s over 95% RH. It is compliant with EMC requirements of Def Stan 59-411.

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Analox’sSub MkIIIF

hyperbaric systemrecently selected forthe Swedish Navy

SRV-Urf.

In 2008-2009Analox supplied

Sub MkIIF, Hyper-GasMkII, 1000 and 5001

series to Draeger for usein 12 &19 man single

bell divingsystems.

In 2010, Analox approached the UK Royal Navyto seek permission to film on board one of theirsubmarines. During service of the Sub E-IR15Pfor the Royal Navy, Analox had concerns aboutthe unnecessary damage being caused to someunits. Analox wanted to prevent this on the newSub MkIIP units being deployed to the fleet,and felt the best way to achieve this was toprovide the crew with a familiarisation DVD thatthey could watch at their leisure.

The Royal Navy supported our request andarranged for filming to take place on a Trafalgarclass boat. Analox scripted the DVD, contractedthe videographer and production companyand produced a DVD at Analox’s expense. Eachnew Sub MkIIP is now supplied with a familiar-isation DVD, which can also be down-loadedfrom our website. Damage to units in servicewith the Royal Navy has reduced from 31% to2%.

Analox is actively engaged in service supportfor the Sub MkIIP, with established servicecontracts in place for several customers.

2. Analox have extensive experience in designingand manufacturing bespoke atmospheremonitoring systems for Submarine RescueVehicles, and have supplied the followingsystems over the last 20 years;

US Navy

a. The design and manufacture of a partialpressure carbon dioxide sensor module forDSRV Mystic. Obsolesence of theirexisting CO2 sensorforced the redesignin which Analoxhad to work withinthe constraintsof the existingvehiclearchitecturein terms of size,weight, power andcommunicationsinterfaces.

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b. Atmosphere monitoring system for the USNavy’s new submarine rescue system – SRDRS.Analox has supplied monitoring systems for usewithin the pilot and rescue compartments in thePressurised Rescue Module (PRM). The systemconsists of 2 main monitoringsystems and 2 independent back upsystems. The PRM was successfully used tomate with a Russian submarine (Alrosa) duringthe NATO BoldMonarch exercise in May 2011. As part of thethrough life support, Analox continue to exceedthe requirements of annual QA inspections fromPhoenix International, the US Navy primecontractor. View the exercise at:www.youtube.com/watch?v=ISCroiXpsXE andhttp://bbc.co.uk/news/world-13692299

c. The design, manufacture and supply of variousatmosphere monitoring systems for use by theJapanese Navy, for use on board their submarinerescue vessels Chihaya and Chiyoda, and theirresearch submarine Shinkai 6500.

After approximately 10 years of service, Analoxare now upgrading these with Mk2 versions.The Mk2 versions are based on Analox’s latestintelligent hyperbaric sensors. Their use enablesa modular system design which can besupported and maintained in Japan, a first fora hyperbaric system! The Mk2 versions fit intothe same space envelope as the Mk1 systemand utilises the same mechanical and electricalinterfaces.

d. In December 2011, Analox supplied its latesthyperbaric monitoring system, the Sub MkIIIF,to James Fisher Defence for use on theSingapore SRV DSAR-6 and the Swedish NavySRV URF, which is currently undergoingrefurbishment. The Sub MkIIIF uses Analox’slatest intelligent sensors which enable the systemto be entirely maintained and supported by thecustomer.

e. NSRSIn 2005, Analox were subcontracted to RollsRoyce for the design, manufacture and supplyof IEC61508 SIL2 compliant atmospheremonitoring and control systems for use in the

NATO SubmarineRescue System, inboth the SubmarineRescue Vehicle (SRV)and the Transfer UnderPressure (TUP) systems.The SRV system consisted of;• 3 operator consoles connected to 6 remote

sensor units within the pilot and rescuecompartments;

• 1 control console connected to 3 remotesensor control units for the purpose of oxygencontrol within the vehicle;

• 1 repeater unit, to repeat the conditions in thepilot compartment to the rescue chamber;and

• 1 toxic gas monitor (TGM) designed to checkthe quality of the DISSUB atmosphere priorto the SRV mating with the submarine. Oncethe TGM is presented with a sample of theDISSUB atmosphere, it will measure oxygen,carbon dioxide, hydrogen and flammablegases, chlorine and carbon monoxide over a0.8 to 1.084Bar pressure range.

The TUP system consisted of;• 5 operator consoles connected to 15 remote

sensor monitoring units; and• 2 control consoles connected to 5 remote

sensor control units

The system is designed to operate over a 0.8to 6.5BarA pressure range, from -15°C to +45°Cin up to 100% relative humidity. It has beendesigned under the Lloyds Register Rulesand Regulations for the construction and

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Fitted with anew state of the

art Analoxmonitoring system,Seven Atlantic has

achieved 1000 hoursdivingtime with no

Lost TimeIncident (LTI)

classification of submersibles parts 1-7 and toEMC requirements IEC 61000-6-2 andIEC61000-6-4, parts of the system had tocomply with BR1326 for materials toxicity.

Analox used a modular design to ensure thecustomer is capable of maintaining the system.The system was delivered during 2006 and2007. As part of the contract Analox wasresponsible for the preparation and delivery ofoperator and maintainer level training courses,in addition to a comprehensive document packincluding engineering drawings, operator andservice manuals and ILS information.Analox were present to commission the equipment and we continue tooffer through life engineeringsupport when required.

Submarine atmospheres

a. The design, manufactureand supply of a uniquehyperbaric atmospheremonitoring system for the UKRoyal Navy, for use on boardthe Astute class of submarine.Analox designed andmanufactured a bespoke gasanalysis system to IEC61508 SIL 2.

The system had to meet extremely demandingrequirements for shock and vibration, andmaterials had to comply with BR1326. Thesystem design was completed within 2 yearsof concept, boat units are provided on an as

required basis. Under the project, Analox has carried out installation and commissioning work on board Astute, adhered to strict contractrequirements in terms of project

management, quality (AQAP 2110, AQAP2210, AQAP 2105 & Def Stan 05- 61), documentation and ILS. Production and factory acceptance testing have been carried out, and Analox have been supporting the Sea Acceptance Trials process

as and when required. Analox have delivered comprehensive

training programmes at maintainer level, and continue to manage the engineering changes and obsolescence.

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b. The design, manufacture and supply of dualrange carbon dioxide monitoring systems toDomnick Hunter for use by the Royal Navy andRNLN submarines. As a supplier to DomnickHunter, our key requirement was delivery of thesystem on time and on budget.

c. Designed following discussions with RNLNand the Canadian Navy, the Sub Aspida is acompact, portable multigas monitor for routinemonitoring of the submarine atmosphere. Theunit contains a pressure sensor to ensurecorrection of the gas sensors during the pressurevariations caused by the submarine snorkelling,thus helping to avoid spurious alarms. The unitoffers a straightforward user interface, flexiblebattery technology and can be fully maintainedby the customer. Both the EC O2 and IR CO2sensors are replaceable modules which can bechanged in the field. The supporting softwarepackage offers flexibility to the customer,allowing them to configure the unit to suit theirspecific requirements including; alarms anddatalogging as well as offering an intuitivecalibration and maintenance section.

RNLN boats use Sub Aspida’s as the primaryback up for their Atmosphere MonitoringSystem.

Military & Commercial Diving

a. Analox has supplied atmosphere monitoringequipment to the commercial diving industryfor over 30 years. This environment poses similardemands on equipment design and performanceas the submarine environment. The divers areliving in sealed decompression chambers for 4to 6 week cycles, where the quality of theatmosphere is critical to their survival.

Analox has successfully delivered gas monitoringand control systems capable of working atpressures up to 60 BarA, reliably and accuratelywhilst conforming to Lloyds and DNVrequirements for material selection and electricalsafety in enriched oxygen environments.

Analox currently offer off the shelf solutions tomonitor; oxygen, carbon dioxide, carbon

monoxide, helium, pressure, temperature,humidity and hydrocarbons in addition to anoxygen controller. The diving industry brings itsown challenges, particularly the effect of heliumon gas sensors. Analox has overcome thesechallenges and we are one of the leadingmanufacturers in this market with systemsoperating worldwide with minimum downtime.

In March 2008, Analox was contracted by Divexto supply IEC61508 functionally safe monitoringsystems for 2 new diving vessels – Skandi Arctic& Seven Atlantic. Analox designed andmanufactured a distributed hyperbaricmonitoring system to incorporate into the stateof the art saturation chamber and divingcomplex. Analox delivered 22 systems, inDecember 2008, on time and on budget.Analox has provided comprehensive documentpacks, including ILS, delivered operator andmaintainer level training and supported the HATand SAT phases. Seven Atlantic has nowcompleted 1000 dives without lost time incident,a significant achievement over a year ofoperation.

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15 Ellerbeck Court, Stokesley Business Park, North Yorkshire, UK.TS9 5PT.

+44 (0) 1642 711400 info@analox-military.netanaloxmilitarysystems.co.uk

During this period, Analox also supplied COTSdiving analysers to commercial diving systembuilders including:• Draeger• Drass• Divex• Lexmar

for vessels including:• Acergy Havila• Acergy Eagle• Bibby Topaz• Mermaid Endurer• Ocean Carrier• SBM Installer• Sea Leopard• Skandi Achiever• SOV Ullswater

b. The design, manufacture and supply of 40atmosphere monitoring and control systems forthe Royal Navy Type C decompressionchambers fitted to the Hunt Class andSandown Class minesweepers. These unitsautomatically control theatmosphere within thechamber to suit thechamber depth anddecompressionprofile required.The system wasdesigned to thesafety standardsDEF STAN00-55 and DEFSTAN 00-56. Itincorporates aslave standby unitwhich continuouslyvalidates theperformance of themaster unit, and iscapable of taking overfrom the master unitin the event of a system fault. Both units useindependently designed software to prevent acommon mode software failure. The systemshave been in service for over 12 years with noreported safety failures.

c. May 2012 - Supply of Analox’s latest divinganalysers, the SDA series, for oxygen and carbondioxide monitoring of 11 Swedish Navydecompression chambers. In addition to theCOTS analysers, Analox have providedsupporting maintenance documentation toenable the Swedish Navy to carry out full systemsupport in Sweden.

Over 500Analox Sub

MkIIPunits are inservicewith more than 14

submarinenations.

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