Hawk Measurement Systems is a specialist provider of level measurement instruments for diverse industrial clients.
The customer had used conductivity probes to control high and low level water in their sand filter tanks. The probes were a problem because they coated up with slime and required routine cleaning.
Hawk installed the Sultan acoustic wave, 2-wire 20 kHz loop powered transmitter.
The lower frequency 20 kHz transducer provided excellent reliable control during all sequences of the sand filter process.
The maximum range of these 2-wire acoustic wave loop powered transmitter is 20m.
When the sand filter was drained, the loop powered transmitter had no trouble monitoring the sand and the backwash sequence, which the client could not achieve with the conductivity probes.
Using the 20 kHz frequency transmitter provided a solution to cover all environment factors including rain, fog, snow and condensation as well as some amount of frothing during the backwash process.
Hawk manufactures one of the largest ranges of 2-wire loop powered acoustic wave transmitters in the world to suit all applications.