Name: OMK-08A/OMK-08B Oil Water Interface Detector
Brand: WEITONG MARINE
SKU: 02665
Availability: InStock
Rating: 5 (1 reviews)

Home > Marine Instrument > Marine Alarm Device

OMK-08A/OMK-08B Oil Water Interface Detector

Description

OMK-08 Oil Water Interface Detector
Ultrasonie 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 ultrasonie 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 comp-lexity of the moledule, 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 avail-able 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 thus eflectively attenuated. An angle of 10 degrees is chosen and often this results in gap of the angled sensor, very little ultrasound reaches the receiver, but when the interface is above or below the sensor (ie 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 oceur 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.

Specification:

Send your message to us

Language

Language

OMK-08A/OMK-08B Oil Water Interface Detector