The DFS2 Doppler Flow Switch continuously measures the velocity of fluid in pipelines using the non-intrusive Doppler principle. The DFS2 is quick and easy to install with no holes in the pipe, no sensor fouling, no maintenance and no downtime for sensor installation. The DFS2 includes a relay with adjustable high and low setpoint control and adjustable delay-on and delay-off timers. The DFS2 has two selectable flowranges, 0 - 2m/s and 0 - 6 m/s, with the flow rate indicated on the 10 LED bar graph flow indicator.
Selectable failsafe mode setting with latching of trip relay
Specifications
Measuring Range : 0.3 to 2.0 m/s (1), 0.3 to 6.0 m/s (2) Set Points : 0 to 100% of Range Timer Delays : 0 to 60 seconds Output : 1 Relay - 1Amp SPDT Transducer Cable : 3 metre length Temperature : Sensor -20 to 90°C, Electronics -10 to 50°C Electronics : IP65 Polycarbonate Enclosure 120 x 120 x 55mm Power Input : 115/230V ac, 50Hz or 24V dc +/-10% Transducer : IP68 St/Steel 81 x 23 x 21mm Indication LED’s : 10 LED bar graph, Range selection, Hi and Lo Alarm, Signal Strength Failsafe Mode : Selectable Weight : 0.85kg
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DFS2
DFS2 clamp on doppler flow switch, bar graph flow indicator, pipe sizes 1-118", hi & lo trip,selectable flow ranges: 0-6.5 & 0 -19.6 f/s Adj. drop-out timer for relay start-up timer for pump operation, failsafe mode with latching relay. PS 230VAC.
