Power supply: 24 V DC / ± 3 V DC
Consumption: 20 mA / 0.65 W
Protection: Against polarity inversion
Output signal: NPN Type

Status indicators:
Red LED = powered 
Green LED = output (pulses) 

Wiring: DIN 43650-A Plug
Process connection: 1⁄2", 3⁄4",1” or 1 1⁄4" (vs. model) 
Nominal diameter: 8 mm, 14 mm, 18 mm, 25 mm (vs. model) 

Pipe material:
PVDF, red color
excepted 1 1⁄4" model, POM (Delrin) blue color

Tube and electrodes: Stainless steel 316 L
Mass: 250...690 g
Minimal conductivity: 20 µS
Maximal pressure: 10 bar /20°C – 8 bar /40°C – 6 bar /60°C
Operating temperature: -10°C to +60°C 

Those flow meters are calibrated on a test bench with a precision better than ± 5 pulses /1000. Tests are carrying out at room temperature with water.

In an electromagnetic flow meter, the fluid section is in a magnetic field originated by toroidal spools. Electrodes, fitted at 90° from the fluid movement and in contact with the conductive liquid measure the generated potential. This potential is proportional to the speed flow (Faraday law) and to the flow rate if the pipe section is constant.