Specifications

Autronica Fire and Security AS Autronica Fire and Security AS
6362
PRODUCTS 2014
Omicron systems
Gas sampling system – OGS 3.1 and OGS 3.11
The Omicron systems by Autronica include high level/overfill alarm systems, gas detection systems, tank and vapour
pressure systems, temperature alarms and calibration equipment. Since delivery of the first generation independent high
level system in 1989, we have developed a range of high-tech systems for the shipping and oshore industry. More than 5000
vessels are using system equipment.
The systems are designed to attract minimum maintenance overheads. We deliver reliable, service-friendly systems to meet
owners’ and regulatory requirements. The systems fulfil IMO, IACS, EC, USCG and classification societies’ regulations.
The Omicron systems are based largely on tailor made solutions for FPSOs. Therefore, we give you a short description of the
complete systems rather than a description on part number level. Please contact us for more information.
OMICRON SYSTEMS
– solutions you can trust
Gas sampling system – OGS 3.1 and OGS 3.11
For total solutions in gas sampling
Omicron gas sampling system OGS 3.1 is our advanced
model for special requirements. Dierent models and
options cover most applications you will find onboard any
kind of tankers with special needs. All delivered parts are
completely assembled ready for interconnection to on-
site application. OGS 3.1 is based on a scanning method,
which means that sample points are being connected to
sensor(s) in a cyclic sequence. The operator panel has an
LCD display and individual LED lamps indicating each
measuring point status. To minimize scanning cycle
time and guarantee fresh samples at all times, the system
has two vacuum pumps. One main pump, continuously
sucking from all sample points and a smaller sample pump
taking samples from the actual point according to the
sequence. This insures quick response if gas is detected.
Purging of sample line is done immediately after each
sampling is finished.
New design of the well known OGS 3.1 gas sampling system (smaller
and more compact).
Gas sampling systems can be used in all spaces where gas
detection is requested, and they can handle several gasses
simultaneously. Our systems have the unique automatic
”blow-back feature”, which together with two sampling
pumps create a rapid and clean sampling cycle. Hence,
for gas tankers we are able to handle more points and still
maintain the 30 minute rule of IMO Gas Code.
Standard features:
• Infrared hydrocarbon sensor with range 0 - 100 % L.E.L
• Low and high gas alarms
• Flame arrestor and shut-o valve for each sampling tube
• Automatic and sequential purging of each sampling tube
• Manual disconnection of sampling points not in use
(e.g. when water in ballast tanks)
• Two vacuum pumps (main and sample)
• Non-return valves mounted on deck for ballast tanks in order
to avoid liquid entering into the system
• Extensive hardware and software system monitoring
Optional features:
• Up to 5 additional units with control transfer function.
• Multiple operating panels
• Remote alarm unit. Simple alarm status panel with LEDs and
buzzer (e.g. for Bridge)
• Aux. relay outputs. Up to 32 relay outputs, freely configurable
to any sample point
• Standby pump with manual switch over
• Dual purge supply (E.g. nitrogen and instrument air)
• Multi-gas detection. Up to 3 dierent gas sensors can be
installed
• Alarm printer
• Bulkhead penetrations
• Automatic disconnection of sample line when sample point
is manually disconnected from scanning cycle
• RS 485/422 MODBUS RTU serial line output to external
computer
• Custom made systems on request
Premium quality
safety monitoring and
environmental surveillance