Water in Oil sensor - WIO

Effects of water in oil

• Surveys have documented that water or moisture is the second largest contamination (after particles) in oil systems
• Water has a damaging effect on the life time of oil and system components:

• Reduced oil film strength and lubricity
• Corrosion
• Hydrogen-induced fractures (embrittlement or blistering)
• Fastened oil degradation which will speed up the oils oxidization

• The effect is damages to engine parts, cylinders, bearings, etc with resulting mechanical failures and therefore repairs and expensive downtime costs (ranging between EUR 10,000 - 200,000).
• Any oil can hold a certain amount of water (dissolved water) depending on the oil type and temperature - until free water is formed.
• Free water is what has the most damaging effects, however, the damaging effect occur already at low water activity. For optimal protection of machine components the water content should not exceed 30% of the saturation
point.
• The amount of water a specific oil type can dissolve varies significantly, depending on e.g. the base oil, additives, oxidation, temperature and pressure.

Measuring the water activity

• Traditionally the water content of oils has been measured using either chemicals or laboratory equipment providing a percentage (%) or as ppm (parts per million)
• This laboratory approach has some drawbacks:

• The small oil sample volume may not represent the many tons of oil
• Time will elapse before the result returns from the lab – and the damage may actually have happened before results are knows
• The analysis are typically only conducted once or twice a month
• Samples are highly dependent on the personnel and correct handling & storage for precise measurements

• These drawbacks can be eliminated by installing PAJ Water-In-Oil sensors which will monitor the water level in the entire oil system around the clock
• The sensor will be giving you early warnings and the ability to take preventing actions – and is thus a cheap insurance against the very costly repair and downtime costs.

 

WIO Product Range

A: Sensors

Standard
 

BALL VALVE

  

WIO200A

•24VDC±10% power supply
•2 x NC relay outputs 60VAC/1A
•1 x galvanic isolated analog output 4 - 20mA
•fixed alarm points H-Alarm-0.50 aw, HH-Alarm 0.90 aW
•manual test function

WIO300-500 range

•2 x galvanic isolated analog output 4 - 20mA •RS485/RS232 modbus user interface or
•Adjustable alarm points for H-Alarm and HH-Alarm
•Service LED indication

Oil Types : Lube, Hydraulic, Diesel, Transformer and Gear Box Oil

 

B: Terminal Boxes

WIO200A

•LED indication/push button for H/HH-alarm
•1 x galvanic isolated analog output 4 - 20mA
•4 digit indication display for aW/ppm
•Acoustic indication for H/HH alarm

 

WIO300-500 range (additional features)

•2 x galvanic isolated analog output 4 - 20mA •RS485/RS232/CANopen user interface or
•Adjustable alarm points for H-Alarm and HH-Alarm

C: Intergrated Solution (Will be available for sale during 2nd quarter of 2013)

 

 

Applications

Anywhere where there is lube oil, gear box oil, hydraulic oil, transformer oil or diesel oil, there is a potential application of our WIO sensors.

•Engine or oil systems –for two-stroke vessel engines up to high speed engines

•Gear boxes – repairing or reinstalling gear boxes in machines, turbines or vessels is very costly

•Hydraulic systems – especially high pressure hydraulic systems are intolerant of water

•Transformers – water in the transformer oil can be very dangerous and is safety critical

•Cooling/ventilation systems – keeping the cooling or vantilation systems up and running is critical

•Cylinders – adjacent machinery injecting the oil directly into the cylinders


•Pumps – especially large scale water or heat pumps

•Compressors – large industrial air compressors in for example factories, power plants or vessels

 

Documentation

• Datasheet

• MAN Diesel approval

• GL Certificate

Contact us

PAJ GROUP

Grundtvigs Allé 163
DK-6400 Sønderborg
Denmark

Phone: +45 7443 7181
Fax: +45 7443 7191
Email: paj@paj.dk

 

 

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