Clamp-On Air Flow Sensor

FD-EC series

Catalogs View Catalog

Amplifier unit M12 connector type FD-ECA1C

FD-ECA1C - Amplifier unit M12 connector type


  • CE Marking
  • CSA





M12 connector type*1

Number of control outputs


Number of analog outputs


Number of external inputs

Power supply cable

Pigtail, 100 mm 3.94", M12 connector, 8 pins of which 6 are used pins used

Response time (90% response)

50 ms/100 ms/250 ms/1 s/5 s (selectable, initial value: 250 ms)*2


Control outputs 1 and 2

Instantaneous flow/Accumulated flow/Alarm output/Pulse output
NPN/PNP setting switchable, 100 mA or less total for two outputs, residual voltage: 2.5 V or less

Analog output

Instantaneous flow
4-20 mA/0-20 mA (switchable), load resistance: 260 Ω or less

External input

Zero flow/Origin adjust./Reset total
Short-circuit current: 1.5 mA or less

Network compatibility


Number of connectible units

Protection circuit

Protection against reverse power connection, output overcurrent, output surge, reverse output connection, and incorrect head cable wiring

Power supply

Power voltage

24 VDC +20%/-10% (including ripple), Class2/LPS

Power consumption

1680 mW*4excluding load current

Environmental resistance

Ambient temperature

−10°C to +55°C 14 to 131°F (no freezing)*5

Relative humidity

35%RH to 85%RH (no condensation)

Vibration resistance

10 to 500 Hz, power spectral concentration: 0.816 G2/Hz, XYZ axes

Shock resistance

100 m/s2, 16 ms pulse, XYZ axes, 1000 times for each axis


Main unit: polycarbonate, FG terminal: copper/iron


Approx. 42 g 1.48 oz

*1 Ensure the cable length is 30 m 98.4' or less (20 m 65.6' or less when using IO-Link) for the M12 connector type.
*2 5 ms is added to the analog output response time and the response is set to 63%.
*3 IO-Link: Compatible with specification v1.1/COM3 (230.4 kbps).
*4 182 mA or less with the load included.
*5 The ambient temperature to use varies depending on the number of adjacent cable type/M12 connector type units or depending on the number of expansion zero line type units added to the system. For 1 or 2 units, the temperature is 55°C 131°F. For 3 to 5 units, the temperature is 50°C 122°F. For 6 to 8 units, the temperature is 45°C 113°F. The prescribed values for the ambient temperature assume that the amplifier unit has been mounted on a DIN rail installed on a metal surface. Exercise special care when installing the product in an airtight space.

Data Sheet (PDF) Other Models