Series

 VTH25

 VTM25

 • Cost optimized version

 • Pressure rating up to 50 bar

 Type

 VTH25

 VTM25

 Material pipe section

 Brass

 Brass

 Flow range

 4...160 l/min*

 Accuracy

 ±5 % of of reading (up to 5 l/min 7 % of of reading)

 Repeatability

 ±0.5 %

 Signal output

 < 1 l/min

 Medium temperature

 0...85 °C**

 0...80 °C** / 2 bar

 0...60 °C** °C / 5 bar

 0...30 °C** °C / 10 bar

 0...85 °C**

 Pressure rating

 PN 10

 PN 50

 Nominal diameter

 DN 25

 Process connection

 G 1¼ male thread, supplementary screwed connection required, see accessories

 Sensor

 Hall effect sensor

 Hall effect sensor

 Output signal 

 → Pulse rate / K-factor 

 → Resolution 

 → Signal shape 

 → Signal current

 65 pulses/l 

 15 ml/pulse 

 Square wave signal NPN open collector 

 Max. 19 mA

 65 pulses/l 

 15 ml/pulse 

 Square wave signal NPN open collector 

 Max. 19 mA

 Electrical connection

 2 m PVC cable, shielded (Tmax = 75 °C)

 4 pin plug connector M12 x 1

 Power supply

 10...30 VDC 

 optional 4.5...26.5 VDC

 6.5...24 VDC 

 short circuit proof and reverse polarity protected

 Degree of protection EN 60529

 IP54

 Max. particle size in the medium

 < 0.63 mm