Sub MkIIIF for submarine escape and rescue


The Sub MkIIIF is a hyperbaric atmosphere monitoring system ideal for use within decompression chambers. The design of this gas analyser is flexible in nature not only allowing it to be configured to meet your requirements but flexible regarding installation and the location of sensors.

The Sub MkIIIF provides vital gas readings ensuring crew are kept safe at all times. The system consists of a central display which can be connected to up to 3 remote sensor modules or ‘REMs’.

Examples of typical requirements

The Sub MkIIIF consists of a central display which can be connected to up to 3 remote sensor modules or ‘REM’s’.

An SRV will typically consist of a pilot compartment, which is normally held at atmospheric pressure and a rescue compartment, which is designed to operate at hyperbaric pressures up to 6 Bara.

The Sub MkIIIF is specifically designed to provide accurate measurement of oxygen, carbon dioxide and pressure in both the pilot and hyperbaric rescue compartment.

Submarine Rescue Vehicle diagram

The Sub MKIIIF is controlled by an operator console known as the ‘display control module’, or ‘DCM’. This displays measured parameters and alarm states sent from the remote sensor modules (REM) which are connected to it.

A REM 1 is designed to measure partial pressure oxygen, partial pressure carbon dioxide, and pressure.

A REM 2 is designed to measure temperature and humidity

If the measured parameters go outside normal operating limits there are two levels of audio-visual alarm activated, on both the DCM and the REM units. These alarms are announced by audible sounders and visible alerts (indicator lamps) on the front panel of each unit, which provide warning of gas and environment alarms, communication faults and calibration/general faults.

The DCM offers datalogging capability and can provide both relay outputs and 4–20mA outputs. The DCM is powered using 24 V DC. The REMs can be powered from either the DCM or a local supply. The DCM and REM units are connected together via a communications cable.

The REM units are designed to be calibrated and maintained by the user. A calibration check is recommended prior to deployment, or once every three months.

In most SRV configurations the DCM is installed in the pilot compartment with a REM 1, a second REM 1 is also installed in the rescue compartment. This provides the pilot & co-pilot with the ability to monitor and control the atmosphere in both compartments of the SRV.

In the event atmosphere monitoring is required for the Built in Breathing system (BIBS) Analox can offer a variant of the REM 1 which can fit into the BIBS pipework.

Part number: ASF3AAAACYYY

Gases monitored

The REM1 module monitors for partial pressure oxygen, partial pressure carbon dioxide and pressure whilst REM 2 monitors for temperature and humidity. Fitted with pressure corrected hyperbaric sensors, the Sub MkIIIF is an effective and accurate gas monitor with an intuitive user interface.

The central display would sit in the chamber control panel and the REMs would be located inside the hyperbaric chamber.

Sub MKIIIF downloads

Spares and accessories

Contact us if you would like to order or need any additional information about our spares and accessories range

MIRBGNX4S 0 to 50mBar CO2 sensor in N2
SA1HAT690 Spare temperature and humidity sensor for REM2

FSUB 607 - Spare cable DMC to REM1 or REM2

Spare cable DCM to REM1 or REM2


FSUB 608 - Spare cable from REM2 to REM1

Spare cable from REM2 to REM1

FSUB-609 Spare cable DCM to terminal
2822-0019A Universal in-line power adaptor 24V 65W
2822-0023 DIN rail mount power adaptor
8000-0069A Flow adaptor

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