Aichi Tokei Denki Vietnam, VN10R, Cảm biến dòng điện từ VN10R, Đại lý chính hãng Aichi Tokei Denki Vietnam



This flow sensor is a compact version of our electromagnetic flow meters that has been designed to be easily built into equipment. It also has realized cost saving. It provides stable measurement and repeatability. * We are happy to provide sample or evaluation products for customers who need to build the sensors into their equipments.  

 ・Compact design, no straight piping is required for either side of the piping! Greater freedom in installation locations.

 ・Equipped with two outputs, this sensor broadens the choice of output, such as flow rate, switch judgment and self-diagnosis.

 ・Having no moving parts makes free of damage resulting from foreign substances.


* For usages in Medical or Concrete industry, please contact us in advance.

Standard Specifications

Model VN05R VN10R VN20R
Accuracy Guaranteed Flow Rate Range (Minimum flow rate – maximum flow rate) 0.05 – 1 L/min 0.5 – 10 L/min 3.0 – 60 L/min
Maximum operating flow 3 L/min 25 L/min 100 L/min
Low flow cut-off 0.025 L/min 0.25 L/min 1.5 L/min
Accuracy (at fluid temperature of 25°C) Frequency pulse ± 2.5 RS% (100% to 20% of maximum flow rate) ± 0.5 FS% (20% to 5% of maximum flow rate)
Unit pulse ± 2.0 RS% (100% to 20% of maximum flow rate) ± 0.4 FS% (20% to 5% of maximum flow rate)
Piping connection (Screw size) R1/4 R1/2 R1
Fluid temperature range 0 to 60℃(Non-freezing)
Fluid conductivity range 50 µS/cm or higher
Target liquids Conductive liquid that does not corrode the material exposed to it.
Operating pressure 1 MPa or less
Pressure loss 0.02 MPa or less
Ambient temperature and humidity Temperature: -20°C to 60°C Humidity: 35% to 85% RH (Non-condensing)
Responsiveness 63% response Damping time: 2 s (Standard)
Signal cables Length: 0.5 m, 4-wire Red: Power + line White: Output 1 Blue: Power – line (GND) Yellow: Output 2
LED displays One LED display on the sensor body Green: Indicates flow rate with three scales of blinking speed. Red: Indicates abnormal state with the number of blinks.
Installation position Free (Vertical piping is recommended.)
Output common specifications NPN open collector Current capacity: 20: mA or less Voltage: 30 VDC or less Residual voltage when ON: 1 V or less
Output 1*2 Frequency pulse*1 Duty ratio Standard 200 Hz (Can be configured by 0.1 Hz in the range between 20 and 400 Hz.)
Unit pulse 0.001 L/P (Standard) 0.01 L/P (Standard) 0.1 L/P (Standard)
Alarm*3 Can be selected from normal open (Standard) or normal close. Alarm contents (Power supply and voltage drops/ meter failure/ empty fluid/ excessive flow rate/ excessive flow noise/ reverse flow)
Switch*4 Can be selected from normal open (Standard) or normal close. Level judgment value: Can be configured by 1% in the range of 0 – 100%. (The maximum flow rate is converted to 100%.)
Output 2 *2 Unit pulse Same as output 1.
Alarm*3 Same as output 1.
Switch*4 Same as output 1.
Safety Class IP X4(IP 64 compatible)
Current Consumption 100mA or less
Power Source Supply isolated power at 12 -24 VDC (±10%). Use of one unit of power supply is recommended for one unit of VN.