Pfeiffer - Model PGS 300 - Water Management Controller - Brochure

The PGS 300 controller assigns the standard current signal 0 / 4...20 mA supplied by the sensor to a level expressed in the unit mWS (bar for pressure measurements and l/s for flow rate measurements). Scaling, e.g. of level measurements, is optionally calibrated via the maximum value of the sensor at 20 mA or the actual measured value (instantaneous value).Level scaling is fixed in 1/10, 1/100, or 1/1000 steps. The displayed value is calculated according to the input current and the fixed scaling factor. In addition, it is also possible to scale a percentage display. The value of the analogue output changes in line with this scaling, with 100 % corresponding to 20 mA at the output.