The Pulsarflow 500 series utilises this technique to provide cost effective flow monitoring and switch point output.
There are three units in the range, Pulsarflow 510 and 515, both general purpose units system and Pulsarflow 511 for use in flammable atmospheres (approval pending)
The Pulsarflow 500 series is capable of operating in general flow measurement applications with velocities from 0.3m/second to 3.5m/second on liquids and slurries. (The Pulsarflow515 offers higher flow capacity.)
Pulsarflow500 series is a non-invasive pipe-mounted liquid indicator with analogue and switch output. The unique design combines both sensor and electronics in a single robust stainless steel enclosure which allows quick and easy installation on the outside of a metal or plastic pipe.
Pulsarflow 500 series has internal transmit and receive transducers which detect ultrasonic reflections from particles (minimum particle size 100 microns > 150ppm) or air inclusions in the liquid or slurry.
The change in frequency detected from these reflections is proportional to the velocity of the particle in the flow, and therefore can be converted by the system into a flow indication. It is possible, on the majority of liquids, to indicate the flowrate and provide a repeatable switching point on higher or lower than desired flow.
Each unit has ease of installation and calibration as a key feature, having a single button set up with status feed-back during initial calibration from red and green LEDs. The Pulsarflow 500 series has ingress protection to IP68. The rugged design provides a high degree of protection from bump, shock and vibration within a typical industrial environment.
Bintech | Level & Flow Instruments, Pressure & Temperature Gauges
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