OMK-08 Type Oil/Water Interface Detector

OMK-08 Type Oil/Water Interface Detector

Product Introduction:

Ultrasonic attenuation is the reduction in energy of the beam as it is transmitted through the liquid. Viscous liquids, emulsions and liquids with entrained solids generally have a higher ultrasonic attenuation than low viscosity clear liquids such as water. When the attenuation difference is sufficient, the amplifier gain can be adjusted so that the ultrasound beam passes through the less attenuative liquid but is stopped by the more attenuative liquid. The output relay can then be set to monitor which liquid is in the gap. The ultrasonic attenuation of a liquid depends on many factors, the main ones being the complexity of the molecule, followed by the viscosity, assuming there is no aeration. Many liquids can be distinguished by this technique and for further information on previously tested liquid systems consult our technical sales. If samples of the liquids are available then a simple site test can often be done. When two immiscible liquids have similar attenuations the above method cannot be used; however, it is likely that the velocity of ultrasound will be different. In this case a beam of ultrasound passing through the interface will be reflected and refracted and if the sensor is arranged at an angle it is thus effectively attenuated. An angle of 10 degrees is chosen and often this results in very little ultrasound reaching the receiver across the gap of the angled sensor, but when the interface is above or below the sensor (i.e. in either liquid) then there is a large signal present. The control unit gain is set to actuate the relay when the interface is in the gap. Note this condition will also occur if the upper liquid drains away and air (gas) is in the gap. Note for further information on suitability of this application consult our technical sales.

Main Technical Specification:

Features:

1.No moving parts;2.Ignores forms;3.Convenient installation;4.Performance is stable and reliable

Application:

1.Petroleum processing;2.Chemical processing;3.Food processing;4.Marine operation;5.Water industry

Sensor Outline Dimension Type 402SD:

Specification For 402SD:

Deyuan Marine provides one-stop sourcing services and offers tailor-made products on request.