Analox Sensor Technology has been supplying atmospheric gas analyzers to the US Navy since the late 1990’s.
Analox specialises in supplying hyperbaric atmosphere monitoring for submarines, encompassing emergency portable analyzers
for use in the event of a DISSUB (Distressed Submarine) through to custom designed fixed systems for use in the submarine rescue vehicles.
In 2005 Analox supplied the US Fleet with the Sub MkIIP, for use in the event of a DISSUB. This
unit offers continuous real time monitoring of the atmosphere inside the submarine escape compartment
and acts as a vital decision making aid for the Senior Survivor.
Sub MkIIP™
In 2005 Analox began supplying the US Fleet with the Sub MkIIP, for use as part of their Rescue Assets. In the event of a DISSUB, the Sub MkIIP provides continuous real time monitoring of Oxygen, Carbon Dioxide, Pressure & Temperature inside the submarine escape compartment and enables the Senior Survivor to take those critical decisions needed to maximise survival within the DISSUB.
The Sub MkIIP replaces the original Sub E-IR15P, it’s smaller, more lightweight and offers longer battery endurance on half the batteries.
The effectiveness of the Sub MkIIP has been proven through several simulated DISSUB exercises, in Norway, the USA and Italy. Click here for further information
The sensors within the analyzer operate via diffusion, annual factory maintenance is required, to ensure the performance of the Oxygen,
Carbon dioxide and pressure sensors throughout their service life.
Several versions of the Sub MkIIP are available under a Nato Stock Number – click here for further information.
The US Navy’s new Submarine Rescue Diving & Recompression System (SDSRS), currently under the management of Phoenix International has been fitted with Custom designed versions of Analox’s portable and fixed hyperbaric gas analyzers.
The Pressurized Rescue Module (PRM) developed by Oceanworks, is designed to descend to the DISSUB, mate with the escape hatch and enable the transfer of the crew, under pressure, from the DISSUB into the Surface Decompression System (SDS).
Within the PRM the escapees are held within a chamber compartment which is designed to be held at the same pressure as they were exposed to on the DISSUB, Analox has supplied a version of the Sub MkIIF hyperbaric atmosphere monitor for use within the breathing loops in the chamber compartment.
The Sub MkIIF is powered with a 24vDC supply and consists of 1 main panel and 1 remote sensor block (Rem 1).
The main panel is used to power the Rem 1, adjust the audio visual alarms, and to carry out calibration procedures on the Rem 1.
The Rem 1 contains the O2, CO2 and pressure sensors and offers the following ranges;
O2: 0-1500mBar pp O2
CO2: 0-50mBar pp CO2
Pressure: 1-10 Bar Absolute
Further information is available in the user manual
As a secondary measure Analox has also supplied Oceanworks with a version of the Sub MkIIP portable hyperbaric monitor. The standard unit has been modified to incorporate factory set audio visual alarms, a data output and different ranges for O2 and CO2, detailed below;
O2: 0-1500mBar pp O2
CO2: 0-50mBar pp CO2
Pressure: 1-10 Bar Absolute
Further information is available in the user manual
Sub MkIIP-S™
In November 2003, Analox provided NEDU with a prototype variant of the Sub MkIIP, the Sub MkIIP-S for use within the Dry Deck Shelter on the US Navy Submarines.
The Sub MkIIP-S has its Oxygen and Carbon Dioxide sensors mounted internally with an internal sample pump, in order to draw a sample from remote areas of the dry deck shelter. The sensors are ranged as follows;
O2: 0-2000mBar pp O2 displayed in %
CO2: 0-25000ppm SEV
Pressure: 0-300 FSW (Feet of Seawater)
Temperature: in degrees Fahrenheit
The prototype units have been tested by NEDU, and some modifications have been suggested, these are yet to be carried out – pending further instruction from NEDU.
Further information is available in the user manual
