Bi-Directional Turbine Flow Meter System
Flow Technology, Inc. released the FT-BD turbine flow meter system. An accurate solution for measuring bi-directional flow in a wide range of liquid applications, this advanced system can also compensate for viscosity changes due to variations in ambient fluid operating temperature, which affect the accuracy of flow measurement data.
In various industrial and test & measurement processes, bi-directional flow presents difficult challenges for flow metering equipment. For example, utility pumping and circulating plants pump dielectric fluid into underground electrical cables in order to dissipate heat generated by high-voltage power lines. This application involves monitoring upstream and downstream flow rates. It also requires a precise method of viscosity compensation as the dielectric temperature changes.
Employing Flow Technology’s FT Series turbine flowmeter paired with the LinearLink(TM) Temperature Compensated Interface (TCI), the FT-BD system provides bi-directional flow measurements in a host of hydraulic, pneumatic and pumping applications. The FT Series meter is an ideal choice when high accuracy, compact size and fast response are critical. The LinearLink TCI is a sophisticated electronics platform for flow meter linearization, viscosity correction and density compensation.
With the FT-BD system, an FT Series turbine flow meter with a bi-directional Universal Viscosity Curve (UVC) calibration employs dual RF/RTD pickoffs for determining flow direction and sensing temperature. The LinearLink TCI’s innovative, temperature-compensated linearization technique reduces viscosity effects on K-factors by calculating fluid viscosity through real-time temperature measurements and proper calibration methods.
As an alternative, the FT-BD system can be employed with Flow Technology’s SL9100 Series Flow Computer. This powerful unit can be configured to display volumetric or mass units of measure with UVC and Strouhal-Roshko temperature compensation for variations in viscosity and density due to temperature. The SL9100 can output a 4-20 mA flow measurement signal to the user’s data acquisition system and display digital read-outs via a panel-mount display.
Turbine Meter Provides Leak Detection
November 6, 2009 by admin
Filed under Meters & Testers, Sensing
Flow Technology today announced the FT-LD (Leakage Detection) turbine flow meter system. This advanced solution offers significant improvements in flow measurement accuracy under dynamic temperature conditions. The FT-LD system provides inferred mass measurements for leakage detection by correcting for temperature effects on fluid volume.
Today’s industrial companies must ensure the ruggedness and reliability of every component used in their products. For example, manufacturers of off-road equipment employ automated test stands to test torque converters for leakage prior to assembly in tractors, bulldozer, backhoes, etc. Transmission oil is measured before entering the torque converter and again after exiting. Any difference in the flow rate can be attributed to leakage in the device. This testing is complicated by the fact that fluid volume at cool temperature is not the same as at high temperatures.
The FT-LD Turbine Meter Leak Dectector
Employing Flow Technology’s FT Series turbine flowmeter paired with the LinearLink(TM) Temperature Compensated Interface (TCI), the FT-LD system helps users obtain precise leakage measurements for fluids such as engine oil, transmission oil and hydraulic fluid. The FT Series meter is an ideal choice when high accuracy, compact size and fast response are critical. The LinearLink TCI is a sophisticated electronics platform for flow meter linearization, viscosity correction and density compensation.
For leakage measurement, FT Series turbine flow meters are installed in series on a test stand fixture with the inlet meter located downstream of the device-under-test (DUT) and the outlet meter positioned upstream of the device. The system is then pressurized with the application fluid and the DUT is run through pre-programmed tests to evaluate its overall performance.
The LinearLink TCI infers mass by density compensation, essentially bringing the cold and hot fluid volumes to a standard. Regardless of the fluid temperature, the compensated volume of flow is converted to a weight equivalent-allowing the user to determine the amount of leakage that has occurred during a test procedure. Fluid leakage rates are calculated by subtracting the outlet mass flow rate from the inlet mass flow rate.
