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Measuring principle

SFI utilize a microwave transceiver (combination transmitter/receiver) enclosed within a watertight, dustignition proof powder coated aluminum housing with a screwon/ off cover. A process seal (Teflon?or Ryton? acts as a transparent window through which the microwave energy is transmitted and the reflected return signal is received. The transceiver module generates and transmits a microwave signal into the area where material flow is to be monitored. The reflected microwave signal shifts in accordance with the Doppler Effect phenomena. The Doppler-shifted energy is analyzed to determine the appropriate output from the unit.
The SFI Solids Flow Indicator consists solely of a transceiver. In this case the transceiver will receive its DC power through the user supplied signal cable and power supply. The three-wire design allows the user to monitor the analog output while providing the supply power to the unit. The Doppler-shifted energy is relative to the magnitude of the flow/no-flow condition that exists, when material velocity is constant,and this is reflected in the varying analog output signal.

Application guidelines

Typical applications include:
.Detection of a partial or full plug in a conveying line
.Detecting the bridging of material in a storage vessel
.Sensing inadequate or a lack of flow due to upstream
equipment failure (conveyor, blower, diverter valve, feeder)
.Verifying flow conditions
.Turning on/off equipment or processes downstream.

Product list
  • Microwave solid flowmeter-MONITOR SFI Monitor’s line of microwave solids flow monitors are high quality,industrial grade instruments capable of providing a signal
    indicating the flow/no-flow condition of solids and powders in gravity chutes, feeders and pneumatic pipelines.

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