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Oil In Water Monitor


Oil In Water Monitor OMD21

Compact 15ppm Bilge Alarm, with superior solids suppression capabilities According to the regulations of IMO Resolution MEPC. 60 (33) U.S. Coast Guard CFR 162.050-35 and Canadian Standard for 5ppm Bilge Alarm

The OMD-21, 15ppm Bilge Alarm exceeds the requirements of IMO Resolution MEPC. 60 (33).  With the OMD-21 DECKMA offer the most advanced oil content measuring device, to prevent reliably pollution from oil. The OMD-21 measures the oil content in the sample through our advanced light scattering principle. Infrared light is passed through the sample and captured by an array of solid state sensors. The signals are then processed and through the application of advanced algorithms the displayed oil content disregards virtually all influence of solids present in the sample. Thus oil content is displayed and turbidity from other sources is disregarded.
The OMD-21 provides two independent alarm contacts, for the operation of an audible alarm and/or operation of an automatic overboard discharge shutdown device.

Special versions such as shock-proof, antimagnetic for Navy application or options like auto-clean system, higher sample throughputs are available on request.




Range (measurement & indication)

0 - 50 ppm

Range (IMO specification)

0 - 15 ppm (according IMO regulations)


better than IMO MEPC. 60 (33)

Electrical power supply

24V - 240V, AC or DC, automatic voltage adjustment

Electrical power consumption

less than 6W / 6VA


Oily water from separator outlet, 0,1 - 4 l/min

Sample temperature range

+1°C  to +65°C

Sample connections

R 1/4" ISO female

Alarm 1 & 2 Set Points

1 - 15ppm (independently adjustable)

Alarm 1 operating delay for annunciation

1 - 540 sec

Alarm 2 operating delay for control 

1 - 20 sec

Alarm contacts

2 independently adjustable switchover contacts

Alarm contact operation mode

De-energized in Alarm State

Alarm contact ratings

3A, 240V each

Alarm output

0 - 20 mA or 4 - 20 mA Current Loop, selectable


Numeric 2-Digit LED Display

Ambient temperature

+1°C to +55°C

Class of protection

IP 65


152 x 155 x 91 mm (WxHxD)


2,55 kgs


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