Interface enhances flowmeter accuracy
A
Cox Instruments product story
Edited by the Engineeringtalk editorial team
Apr 3, 2008
The Cox 4080 is an ideal signal processing solution for turbine flowmeters used in aerospace, automotive, and test and measurement applications.
A new extended range fluid compensation flowmeter interface from Cox Instruments provides total flow compensation to enhance flowmeter accuracy, while extending the linear flow range.
Designed as the ultimate electronic processor, the Cox 4080 is an ideal signal processing solution for turbine flowmeters used in aerospace, automotive, and test and measurement applications.
The unit provides significant improvements in flowmeter accuracy under extreme temperature conditions.
It tracks all variables to compensate for viscosity and temperature variations while developing a 200 data point curve representing the flowmeter output.
The Cox 4080 uses enhanced DSP technology enabling exceptional signal characterisation and fast (less than 3ms) response to output dynamic data in engineering units.
This advanced flow computer allows users to employ a single device for multiple flow outputs, including frequency, analogue and RS485; no external amplifiers or signal conditioners are necessary.
The Cox FlowComp software graphical user interface is intuitively easy to configure, providing powerful characterisation of process signals, output signals, and liquid properties.
The software allows users to perform fluid selection, configuration of outputs, and data logging.
Additional key features of the Cox 4080 include: turbine blade averaging to enhance low flow resolution; integral temperature and pressure amplifier; Roshko-Strouhal correlation using 10bit resolution; and conformance to SAE ARP 4990 calculations.
Cox precision turbine meters provide a linear extended range from 15:1 on small meters, ranging up to 100:1 on 2in meters, without the use of linearising electronics.
This performance is achieved through a precision helical rotor design, proper use of rotor supports, and minimal bearing friction.
Even with this superior linearity, the Cox 4080 extends the nonlinear, but repeatable range even further.
The Cox 4080 complements the inherently nonlinear, but repeatable Cox Instruments LoFlo Series.
Cox Instruments has provided hundreds of thousands of quality turbine flowmeters to customers with demanding liquid and gas flow metering requirements.
Cox manufactures the meter-of-choice for critical flow measurement applications and is the standard in the aerospace and test and measurement industries.
As a preferred supplier, Cox Instruments' Precision AN Series flowmeters are delivered within 2-4 weeks, pending calibration requirements.
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