A turbine acts as the primary sensor; its rotational speed is
proportional to the flow rate. The rotational speed is detected by
means of a biased Hall sensors, i.e. there are no magnets in the
flow space.
The FLEX transducer located on the sensor has an analog output
(4..20 mA or 0..10 V) and a switching output, which can be
configured as a limit switch for monitoring minimal or maximal, or
as a frequency output.
The switching output is designed as a push-pull driver, and can
therefore be used both as a PNP or an NPN output. The state of
the switching output is signalled with a yellow LED in the switching
outlet; the LED has all-round visibility.
The sensor is configured in the factory, or alternatively this can be
done with the aid of the optionally available ECI-1 device
configurator (USB interface for PC). A selectable parameter can be
modified on the device, with the aid of the magnet clip provided. In
this case, the current measured value is saved as the parameter
value. Examples of these parameters are the switching value or the
metering range end value.
The stainless steel electronics housing is rotatable, so it is possible
to orient the cable outlet after installation.

Technical data :

Sensor                         : turbine with biased Hall sensor

Nominal width             : DN 15..50 (others on request)

Process
connection                  :G 1/2 A...G 2 A

Metering ranges         : see table "Ranges"

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

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

Ambient
temperature                : -20..+70 °C

Storage
temperature                : -20..+80 °C

Materials
medium-contact          : Housing            stainless steel 316

                                       Turbine            stainless steel 430

                                        Bearing           tungsten carbide

Material
electronics
housing                        : stainless steel 1.4305 / adapter CW614N plated

Pressure loss
(average)                     : 0.3 bar at Qmax.

Pressure                       : PN 250 bar