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          Clamp-on Micro Flow SensorFD-X series


          Controller DIN rail type, expansion unit


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          DIN rail type, expansion unit

          Display method

          Output indicator, 4-digit 7 segment display, OLED, Stability level display

          Display refresh frequency

          Approximately 5 times/second

          Response time

          50 ms/100 ms/500 ms (selectable, default: 500 ms)

          Memory back up

          EEPROM (data storage period: more than 10 years, number of data rewritable times: 1 million times or more)

          Detection mode


          Instantaneous flow rate mode


          Error output mode



          NPN/PNP selectable
          Open collector output: 30 V or lower, main unit: 50 mA or lower/ch.*1/expansion unit: 20 mA or lower/ch., residual voltage: 2 V or lower

          External input

          Flow rate zero input/zero shift input (switchable) Short circuit current: NPN 1 mA or lower/PNP 2 mA or lower, input time: 20 ms or longer

          Network support

          Supports NU series

          Protection circuit

          Power supply reverse connection protection, power surge protection, output short circuit protection, output surge protection

          Addition of expansion units

          Up to 7*2 per main unit

          Power supply

          Power voltage

          20 to 30 VDC including 10 % ripple (P-P) , Class 2

          Current consumption

          185 mA or lower (including the sensor head, excluding the load current)

          Environmental resistance

          Operating ambient temperature

          -10 to +50 °C (No freezing)

          Operating ambient humidity

          35 % to 85 %RH (No condensation)

          Vibration resistance

          10 to 55 Hz, double amplitude 1.5 mm, 2 hours each for X,Y,Z direction

          Shock resistance

          100 m/s2 (approx. 10 G) 16 ms pulse, 1000 times each for X,Y,Z direction


          Main body case/front sheet: PC, Key top: POM, Cable: PVC


          Approx. 180 g

          *1 20 mA or lower/ch when adding expansion units.
          *2 Consult the manual for the number of serially-connectable devices to the N-bus.

          Process Controls / Process Sensors