A turbine acts as the primary sensor; its rotational speed is
proportional to the flow rate. The rotational speed is detected by
means of pre-tensioned Hall sensors, i.e. there are no magnets in
the flow space.
The integrated converter / counter make available an electronic
switching output (push-pull) with adjustable characteristics
(minimum/maximum) and hysteresis, which responds when an
adjustable limit is fallen short of or exceeded.
The switching value can be set to the currently existing flow using
"teaching".
Models with analog or pulse output are also available.

Technical data :

Sensor                  : turbine with biased Hall sensor

Nominal width      : DN 15..50

Process
connection           : G 1/2 A...G 2 A (others on request)

Switching ranges : see table "Ranges" On Technical Data (PDF)

Measurement
accuracy              : ±1 % of full scale value in the specified metering range
                                including linearity and repeatability

Pressure loss       : 0.3 bar at Qmax.

Pressure
resistance            : PN 250 bar

Medium
temperature         : -20..+85 °C optionally -20..+150 °C (for 8 bar min.)

Ambient
temperature         : -20..+70 °C

Storage temp.       : -20..+80 °C

Materials
medium-contact   : Housing stainless steel 315

                                Turbine stainless steel 430

                                 Bearing tungsten carbide