Our range of German made stairwell pressure sensor are made by Beck in Germany.
The leader in pressure devices.
Our stairwell pressure sensor runs on 24VDC, so can be powered off a VSD direct if need be. Sensor comes complete with tubing & probes. We also have optional metal probes (please ask if these are needed instead!)
It outputs a 4-20mA signal over a 2 wire current loop. 4-20mA current is lot more stable over long distances and less susceptible to electrical noise over long distances too (unlike 0-10VDC).
Being able to run on a single pair (2 wire device) of cables also saves you money on expensive fire rated cables! Most other sensors need 3 wires as a minimum!
Your VSD can be setup for a P+I (proportional + integral) loop for best performance. Or even connect multiple sensors & average them directly on the VSD (dependent on the VSD).
Click here to buy on our secure site with free freight Australia wide: https://alvi-signal-isolators-converters.myshopify.com/products/differential-pressure-transmitter-pressure-range-0-100-pa-output-4-20ma