Product category:
Machine Safety Monitoring and Control
News Release from: Delta Controls | Subject: Ultrasonic flow transmitter
Edited by the Engineeringtalk Editorial
Team on 01 July 2003
Transmitter measures air and gas flows
in engines
Ultrasonic flow transmitter for use on engine test beds can evaluate engine wear by quantifying the volume of blow-by gas, which increases steadily over time as the engine wears.
Available from Delta Controls is an ultrasonic flow transmitter for accurate, cost effective measurement of air and gas flows in engine blow-by applications The flow transmitter is specified for use on engine test beds by engine manufacturers and developers of lubricating oil
This article was originally published on Engineeringtalk on 29 May 2003 at 8.00am (UK)
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It is used to evaluate engine wear by quantifying the volume of blow-by gas, which increases steadily over time as the engine wears.
Using vortex measuring principles, the Delta unit works by detecting and measuring turbulence created by an obstruction in the flow.
It transmits an ultrasonic carrier wave across the flow and this is modulated by the passing vortices.
The frequency of modulation is processed through signal conditioning electronics to produce a pulsed output that can be monitored.
More accurate than traditional methods of measuring gas flow, such as rotameters, the compact design has no moving parts.
This ensures reliability and an accuracy of 1% with repeatability.
Pressure drops are typically 1.2mbar at full flow.
The transmitter is for pipes from 10 to 25mm in diameter, flow rates from 6 to 825 l/m, pressures up to 20bar and temperatures from -20 to + 120C.
Rated weather-proof to IP66, the transmitter is supplied with PTFE sensors and stainless-steel sensor heads as standard.
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