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TFA Flowmeter
Brand: Spirax SarcoThe Spirax Sarco TFA flowmeter is designed for use on saturated steam only and operates on the target principle, by measuring the force produced on a target by the fluid flow.
This force is then converted into density compensated mass flowrate or power and is transmitted via a single loop powered 4-20 mA and pulsed output.
TFA flowmeters also incorporate a totalized flow function and EIA 232C (RS232) or EIA 485C (RS485) Modbus communications.
The TFA flowmeter has inbuilt electronics which give a density compensated output.
The LCD display is incorporated within the electronics head and can show totaliser, flowrate, power, pressure and temperature.
An M750 display unit can be used to provide a remote display function if required, utilising the 4 - 20 mA output.
As the TFA flowmeter is a self contained unit, the uncertainty quoted is for the complete system.
Many flowmeters claim a pipeline unit uncertainty but for a true system uncertainty, the individual uncertainty values of any associated equipment, such as DP cells, need to be added to the pipeline value.
Specifications
Brand
Maximum Design Pressure
- 32 bar g @ 239° C
Maximum Design Temperature
- 239° C
Minimum Design Temperature
- 0° C (non-freezing)
Maximum Operating Pressure
- Horizontal flow: 32 bar g @ 239° C
- Vertical flow: 7 bar g @ 170° C
Minimum Operating Pressure
- 0.6 bar g
Maximum Operating Temperature (Saturation)
- 239° C
Maximum Electronics Ambient Temperature
- 55° C
Maximum Electronics Humidity Level
- 90 % RH (non-condensing)
Designed for a Maximum Cold Hydraulic Test Pressure
- 52 bar g