Non-Wetted Electrode Electromagnetic Flow SensorsFD-M series


Main Unit, Landscape, 5 L/min, NPN


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For horizontal piping


Built-in amplifier

Rated flow range

0.25 to 5 L/min*2*3

Possible display range

0.15 to 10 L/min*4

Possible ranges to set

0 to 10 L/min

Zero-cut flow rate

0.15 L/min*5

Connection port

Rc3/8 (10A)

Detectable fluids

Water or non-corrosive liquid

Conductivity of detection fluids

5 µS/cm or higher

Detection fluid temperature

0 to 85°C 32 to 185°F, (No freezing)

Pressure loss

0.01 MPa or less

Display method

Dual row display with 4-digit, 7 segment LED, bar display (2 colors), output indicators, flow indicator

Display resolution

0.05*6/0.1 ( L/min) selectable


0.5 s : ±5% of F.S.10 s : ±1% of F.S.1 s : ±3.5% of F.S.30 s : ±0.8% of F.S.2.5 s : ±2.5% of F.S.60 s : ±0.6% of F.S.5 s : ±1.6% of F.S.*7



Response time (chatter prevention feature)

500 ms/1 s/2.5 s/5 s/10 s/30 s/60 s variable

Accumulated flow unit

0.01/0.1/1/10/100 (L) selectable

Integration data storage cycle

Save to memory every 10 seconds

Memory backup

EEPROM (Data storage length : 10 years or longer, Data read/write frequency : 1 million times or more)

Control output

NPN open collector, max. 100 mA/ch*8 (40 V or less), residual voltage 1 V or less, 3 outputs (N.O./N.C. switchable)

Analog output

4-20 mA, max. load resistance 260Ω, Analogue output range can be set to any value

Integration reset/bank switch input/flow zero function input

Input time : 20 ms or greater, Either accumulation reset or bank switching mode can be selected

Power consumption (Current consumption)

Normal : 1700 mW (70 mA), Power save : 1000 mW (40 mA)


Power voltage

24 VDC, Ripple (P-P) 10 % or less

Environmental resistance

Enclosure rating


Pressure resistance

2.0 MPa

Withstand pressure

1.0 MPa or less

Ambient temperature

0 to +50 °C 32 to 122 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions


Liquid end materials

Bore : SCS13, Measurement pipe : PPS, O ring : fluoro-rubber (FKM)

Other materials

Plastic case areas : PPS, Metal case areas : SUS430, Cable : PVC


Instruction manual


Approx. 835 g

*1 The models with “A” at the end of the name have additional functions such as display averaging.
*2 The rated flow range indicates the range that is supposed to be used in general.
*3 The rated flow range indicates recommended operating range.
*4 Can be used within the display range as well as within the rated flow range.
*5 Flow under the zero cut flow will be displayed as 0 L/min.
*6 When it is 0.05, the display flow can be set in 0.05 increments between 0.15 and 0.5L, and set in 0.01 increments for values above 0.5L.
*7 The repeatability for FD-M5AT (P)/Y (P) is ±7.5% of F.S. at a response time of 0.5 s and ±5% of F.S. at a response time of 1 s.
*8 Maximum 20 mA for alarm output.

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