Oily Water Monitors

In both marine and industrial applications, there are many systems where detecting the presence of oil in water and measuring its concentration is of great importance. It can be applied to avoid unnecessary oil pollution or indeed detect early indications of a failure where lubricant could leak from one system to another – such as through a heat exchanger.

Service Contracts

An uncalibrated or faulty oily water monitor can result in operational and unexpected downtime, along with substantial fines or impounding if discharge water contamination exceeds legal limits. 

With a wealth of Oily Water Separator (OWS) monitoring system experience, AtZ are able to fully manage your calibration schedule as well as manage complete system lifecycle through upgrades and extension measures. 

AtZ offer calibration services or annual calibration and maintenance contracts as a flexible, cost-saving option to ensure your systems continues to operate effectively and meets legislation at all times.

MARINE

Within the marine industry, oily bilge water produced by vessels cannot be discharged overboard without first being processed to remove oils. MARPOL regulations require oil concentration not to exceed 15 parts per million (ppm) and in some cases 5 ppm in the discharged water.

Deckma-Hamburg have long been an industry leader in the provision of solutions for oil in water content measurement, and have a number of products targeted for the segment.

OMD-24

The OMD-24 Series Bilge Alarm Units have been designed specifically for use in conjunction with 15 ppm oil-water separator units and have a specification and performance which exceeds the requirements of the International Maritime Organization IMO specifications for 15 ppm Bilge Alarms contained in Resolution MEPC.107 (49). They can be programmed from the factory for 5 ppm use.

An optical sensor array measures a combination of light scattered and absorbed by oil droplets in the sample stream. The sensor signals are processed by a microprocessor to produce an output. If an alarm (set point form 1 ppm to 15 ppm) occurs, the two oil alarm relays are activated after the adjusted time delay. 

The microprocessor continuously monitors the condition of the sensor components and associated electronics to ensure that calibration accuracy is maintained over time and extremes of environmental conditions.

The OMD-24 requires a 24V power supply and has optional auto clean, valve and flow systems.

Range: 0 – 30 ppm, Trend indication 50 ppm
Accuracy: According IMO MEPC. 107(49)
Linearity: 0 – 30 ppm better than ± 2 %
Display: Yellow Graphic Display
Power Supply: 24 V AC or DC +/- 10%
Consumption: < 5 VA
Alarm Points 1 + 2: Adjustable between 1 – 15 ppm*
(Works adjustment 15 ppm)
Alarm 1 Operating Delay:
(for annunciation purpose)

Adjustable between 1 – 540 sec.
(Works adjustment 2 sec.)

Alarm 2 Operating Delay:
(for control purposes)

Adjustable between 1 – 10 sec.
(Works adjustment 10 sec.)

Alarm Indication:
(Alarm 1, 2, System Fault)

Red LEDs

Alarm Contact Rating:
(Alarm 1, 2, System Fault)

Potential free 1 pole change over contacts,
3 A / 240 V.
Output Signal: 0 – 20 mA or 4 – 20 mA selectable,
ext. Load < 150
Sample/ Fresh Water pressure: 0.1 – 10 bar
Sample Flow: Approx. 0.1 – 3 l/min
Sample Water Temperature: +1 to +65 °C
Ambient Temperature: +1 to +55 °C
Roll: Up to 45°
Size:
Computer Unit
Measuring Cell Assembly

185 mm W x 210 mm H x 65 mm D
140 mm W x 160 mm H x 65 mm D

Distance Computer Unit to
Measuring Cell:

Up to 0.5 m

Weight: (with Measuring Cell) 2.5 kg
Degree of Protection: IP 65
Pipe connections: R ¼” Female

OMD-2008

The OMD-2008 Series Bilge Alarm Units have been designed specifically for use in conjunction with 15 ppm oil-water separator units and have a specification and performance which exceeds the requirements of the International Maritime Organization IMO specifications for 15 ppm Bilge Alarms contained in Resolution MEPC.107 (49). They can be programmed from the factory for 5 ppm use.

An optical sensor array measures a combination of light scattered and absorbed by oil droplets in the sample stream. The sensor signals are processed by a microprocessor to produce an output. If an alarm (set point form 1 ppm to 15 ppm) occurs, the two oil alarm relays are activated after the adjusted time delay. 

The microprocessor continuously monitors the condition of the sensor components and associated electronics to ensure that calibration accuracy is maintained over time and extremes of environmental conditions.

The OMD-2008 can operate on any power supply from 24-240V ac or dc and has optional auto clean, valve and flow systems.

Range: 0 – 30 ppm, Trend indication 50ppm
Accuracy According IMO MEPC. 107(49)
Linearity Up to 30 ppm better than ± 2 %
Display Yellow Graphic Display
Power Supply: 24 V – 240V AC or DC
Automatic Voltage selection
Consumption: < 10 VA Alarm Points 1 + 2: Adjustable between 1 - 15 ppm (Works adjustment 15 ppm) Alarm 1 Operating Delay: (for annunciation purpose) Adjustable between 1 – 540 sec. (Works adjustment 2 sec) Alarm 2 Operating Delay: (for control purposes) Adjustable between 1 – 10 sec. (Works adjustment 10 sec) System Fault Alarm: Red LED Alarm Contact Rating: Potential free 1 pole change over 3 A / 240 V Alarm Indication: Red LEDs Output Signal: 0 – 20 mA or 4 – 20 selectable ext. Load < 150 Ω Sample Water Pressure: 0,1 – 10 bar Sample Flow: Approx. 0,1 - 3 l/min depending on Ambient Temperature: + 1 to + 55° C Sample Water Temperature: + 1 to + 65° C Roll: Up to 45° Size (Computer Unit) 200 mm W x 200 mm H x 100 mm Size (EV-FC-Arrangement) 150 mm W x 290 mm H x 140 mm Degree of Protection: IP 65 Weight: 5,9 kg Pipe Connections: for 6mm OD Cu or SS pipe

INDUSTRIAL

Within the industrial processing sector, manufacturing and material processing use of monitoring equipment can support system feedback as well as identify early failures.

OMD-32A

Oil in Water Monitoring

OMD-&MKIIA

Oil in Water Monitoring + Suspended Solids in Water Monitoring + Turbidity Monitoring

NOTE

Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality.

Power Stations

Cooling Water

Surface Water Run-off

Paper Plant

Pulping process Heat Exchangers

Any machinery lubricating oil cooling water

Wastewater Treatment

Clean water intakes to Public Owned Treatment Works

There are many other industrial applications that Deckma monitoring equipment could be beneficial for. Please call us at AtZ to discuss your requirements.

Technical Details:

Both the and OMD-32 OMD-7MK11A offer continuous live monitoring, data logging and configurable alarms offering fast response to undesirable oil, solids or turbidity readings in water.

OMD-32A

Oil Monitoring 0 – 200ppm

0.1 – 1.0 ppm resolution

Signal Output 0(4) – 20mA

Configurable Alarms

+ 1°C – + 55°C

OMD7 MKIIA

Oil Monitoring 0 – 200ppm (parts per million)

Solids Monitoring

0 – 600 smu (solid measuring unit = equals 0-600 ppm Test Air Cleaner Dust)

Turbidity Monitoring 0 – 1000 ftu (Formazin turbidity units)

Signal Output 0(4) – 20mA

Configurable Alarms

+ 1°C – + 55°C

Measuring Method

Light Scattering with multiple wavelength light sources and multiple detector angles continuously. This design represents the first all new Industrial Monitor capable of distinguishing between the different characteristics of Oil particles, Solid particles and Water Turbidity on a continuous basis.

Key Features

  • OEM Supply
  • German Design and Manufacture
  • UK supply, support, calibration, installation and commissioning
  • Ease of Use
  • Rugged design for the Industrial environment
  • Common Technology transferrable to multiple industrial applications
  • Both the OMD-7 MKIIA and OMD-32A can be reconfigured for hazardous area operating environments. enabled by an explosion proof cabinet assembly. 
  • A multitude of specifications for differing environments can be catered for and all parts are included.


FAQ’s

Would monitoring give any up-time improvements?

Yes, the Deckma equipment can alarm and respond (direct control output) in as little as 1 sec from point of detection, enabling equipment damage avoidance and totally minimising environmental impact

Can AtZ support with Spares and services at short notice.

Yes, ATZ can offer:
Service exchange on all parts
Same day calibration
24/7 technical support 
Service contracts tailored to the customer’s needs.

Can existing equipment be easily replaced?

Yes, units can be retrofitted in place of other equipment with ease as long as there is a suitable power supply, and sample and freshwater pipework can be modified.

Why is calibration recommended yearly?

We are dealing with very small percentages of hydrocarbons or solids where just a small change could be detrimental to industrial equipment of meeting environmental legislation. The quick and inexpensive calibration process helps mitigate those risks.

Your Industry Is Our Industry

Talk to our team of technical experts

Our team of technical experts offer industry-leading consultation services, equipment sales and support and with a wealth of project management and technical experience, we plan and deliver. We work with you to ensure a smooth project from design specification to onsite installation. Our impartial guidance and multi-supplier approach mean we are focused on finding you the best solution meaning you can be confident in both our services and products.

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