Flow and Pressure Dual Sensor

FD-EP series

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Specs Flow and Pressure Dual Sensor FD-EP series

Sensor head

Model

FD-EPH4

FD-EPH5

FD-EPH6

FD-EPH7

FD-EPH8

Image

Supported pipe diameter

Pipe outer diameter

ø4 *1

3/16”
(Approx. 4.76 mm) *1

ø6 *1

1/4”
(Approx. 6.35 mm) *1

ø8 *1

Applicable outer diameter range

Polyurethane

4.0 ±0.1 mm

4.76 ±0.15 mm

6.0 ±0.1 mm

6.35 ±0.15 mm

8.0 ±0.1 mm

Nylon

4.0 ±0.08 mm

4.76 ±0.1 mm

6.0 ±0.08 mm

6.35 ±0.1 mm

8.0 ±0.08 mm

Pipe materials

Plastic piping that can be connected to one-touch couplings

Supported fluids

Air, nitrogen, argon, non-corrosive gases*2

Supported fluid temperatures

−10 to +60°C

Pressure resistance

1 MPa

Flow detection principle

Transmission time difference method

Flow specifications

Rated flow

(volumetric flow)

25 L/min

30 L/min

60 L/min

100 L/min

(at 20°C, atmospheric pressure) *Initial display

Gas at 20°C, 0.0 MPa

Gas at 20°C, 0.2 MPa

75 L/min

90 L/min

180 L/min

300 L/min

Gas at 20°C, 0.4 MPa

125 L/min

150 L/min

300 L/min

500 L/min

Gas at 20°C, 0.6 MPa

175 L/min

210 L/min

420 L/min

700 L/min

Measurement accuracy

±(2.0% of RD+1.0% of F.S.)*3*4

Repeatability

2.5% of F.S. at 250 ms response time*3*5

Pressure specifications

Rated pressure

-100 kPa to +0.75 MPa *However, flow cannot be measured in the -100 to -50 kPa range.

Overall accuracy

±2.0% of F.S.*3

Repeatability

2.5 ms response time: ±0.4% of F.S.

Display resolution

Instantaneous flow

0.01/0.1 L/min

Integrated flow

0.01/0.1/1/10/100 L

Pressure

0.1/1 kPa

Environmental resistance

Enclosure rating

IP65 (IEC60529)

Ambient temperature

-10 to +60°C (no freezing)

Relative humidity

35 to 85% RH (no condensation)

Vibration resistance

10 to 500 Hz; Power spectral density: 0.816 G2/Hz; X, Y and Z directions

Shock resistance

100 m/s2, 16 ms pulses, 1000 times each for X, Y, and Z directions

Material

Sensor body (part not in contact with fluids)

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel/Aluminium

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel/Aluminium

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel/Aluminium

Flow path (part in contact with fluids)

PBT/Brass electroless nickel plating/NBR/Nylon

Weight

Approx. 127 g

Approx. 128 g

Approx. 127 g

Approx. 129 g

Approx. 145 g

*1 For stable detection, a pipe inner diameter equal to or greater than the inner diameter of this product is recommended.
*2 The gas through which ultrasonic waves penetrate. Readings may become unstable depending on the pipe’s internal pressure and the type of gas.
*3 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Errors may occur according to the type and condition of the customer’s pipes, the type of fluid, the fluid temperature, and other factors.
*4 The definition assumes that the flow velocity distribution is stable with a sufficient straight pipe segment. Does not include pulsations or changes in flow speed distribution caused by equipment.
*5 Accuracy improves with longer response times. As a rule, this is by a proportion of √(250 ms/response time)x.

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Model

FD-EPH9

FD-EPH10

FD-EPH12

FD-EPH13

Image

Supported pipe diameter

Pipe outer diameter

3/8”
(Approx. 9.53 mm) *1

ø10 *1

ø12 *1

1/2”
(Approx. 12.7 mm) *1

Applicable outer diameter range

Polyurethane

9.53 ±0.15 mm

10.0 ±0.15 mm

12.0 ±0.15 mm

12.7 ±0.15 mm

Nylon

9.53 ±0.1 mm

10.0 ±0.08 mm

12.0 ±0.1 mm

12.7 ±0.1 mm

Pipe materials

Plastic piping that can be connected to one-touch couplings

Supported fluids

Air, nitrogen, argon, non-corrosive gases*2

Supported fluid temperatures

−10 to +60°C

Pressure resistance

1 MPa

Flow detection principle

Transmission time difference method

Flow specifications

Rated flow

(volumetric flow)

150 L/min

250 L/min

(at 20°C, atmospheric pressure) *Initial display

Gas at 20°C, 0.0 MPa

Gas at 20°C, 0.2 MPa

450 L/min

750 L/min

Gas at 20°C, 0.4 MPa

750 L/min

1250 L/min

Gas at 20°C, 0.6 MPa

1050 L/min

1750 L/min

Measurement accuracy

±(2.0% of RD+1.0% of F.S.)*3*4

Repeatability

2.5% of F.S. at 250 ms response time*3*5

Pressure specifications

Rated pressure

-100 kPa to +0.75 MPa *However, flow cannot be measured in the -100 to -30 kPa range.

Overall accuracy

±2.0% of F.S.*3

Repeatability

2.5 ms response time: ±0.4% of F.S.

Display resolution

Instantaneous flow

0.1/1 L/min

Integrated flow

0.1/1/10/100/1000 L

Pressure

0.1/1 kPa

Environmental resistance

Enclosure rating

IP65 (IEC60529)

Ambient temperature

-10 to +60°C (no freezing)

Relative humidity

35 to 85% RH (no condensation)

Vibration resistance

10 to 500 Hz; Power spectral density: 0.816 G2/Hz; X, Y and Z directions

Shock resistance

100 m/s2, 16 ms pulses, 1000 times each for X, Y, and Z directions

Material

Sensor body (part not in contact with fluids)

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel/Aluminium

PBT/PAR/Iron/Brass electroless nickel plating/POM/NBR/Stainless steel

Flow path (part in contact with fluids)

PBT/Brass electroless nickel plating/NBR/Nylon

Weight

Approx. 193 g

Approx. 180 g

Approx. 201 g

Approx. 208 g

*1 For stable detection, a pipe inner diameter equal to or greater than the inner diameter of this product is recommended.
*2 The gas through which ultrasonic waves penetrate. Readings may become unstable depending on the pipe’s internal pressure and the type of gas.
*3 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Errors may occur according to the type and condition of the customer’s pipes, the type of fluid, the fluid temperature, and other factors.
*4 The definition assumes that the flow velocity distribution is stable with a sufficient straight pipe segment. Does not include pulsations or changes in flow speed distribution caused by equipment.
*5 Accuracy improves with longer response times. As a rule, this is by a proportion of √(250 ms/response time)x.

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Amplifier Units

Model

FD-EPA1

FD-EPA1C

FD-EPA0

Image

Type

Cable Type

M12 connector type*5

Zero Line Type*6

No. of control outputs

3

─*7

No. of analog outputs

1

─

No. of external inputs

2

─*7

Power supply cable

2 m, strand wire, 8-core

100-mm pigtail, M12 terminal, 8-pin

No cable

Response time (90% response)

Flow

50 ms/100 ms/250 ms/1 s/5 s (selectable, default 250 ms) *1

Pressure

2.5 ms/10 ms/50 ms/100 ms/250 ms/1 s/5 s (selectable, default 2.5 ms) *1

Input/output

Control output 1, 2, 3

Instantaneous flow/integrated flow/pressure/alert output/predictive maintenance output/seating (output 1 only)/pulse output NPN/PNP
setting switching, 3 output total: 100 mA max., residual voltage 2.5 V max.

Analog output

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

External inputs 1, 2

Zero flow/flow origin adjustment/atmospheric pressure correction/pressure zero shift/accumulation reset/application learning/application reset
Short-circuit current: 1.5 mA or less

Network compatibility

IO-Link*2

NU Series

No. of expansion units

─

8 units for one NU parent unit, 4 units for one
FS-MC8N/P parent unit*6

Protection circuit

Protection against reverse power connection, output overcurrent, output surges,
reverse output connection, head cable miswiring

Protection against head cable miswiring

Power supply

Power voltage

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

24 VDC ±10% (including ripple), Class2/LPS

Power consumption

1870 mW (excluding load current)*3*4

1400 mW (excluding load current)*4

Environmental resistance

Ambient temperature

-10 to +55°C (no freezing) *4

Relative humidity

35–85% RH (no condensation)

Vibration resistance

10 to 500 Hz; Power spectral density: 0.816 G2/Hz; X, Y and Z directions

Shock resistance

100 m/s2, 16 ms pulses, 1000 times each for X, Y, and Z directions

Material

Main unit: Polycarbonate, FG terminals: copper/iron

Weight

Approx. 90 g

Approx. 42 g

Approx. 26 g

*1 Analogue output response time is 5 ms additional and 63% response.
*2 IO-Link: SpecificationV1.1/COM3 (230.4 kbps) is supported.
*3 Less than 190 mA including load.
*4 The operating ambient temperatures for the adjacent number of cable type/M12 connector type units and the number of zero line type expansion units should be 55°C for 1 to 2 units, 50°C for 3 to 5 units, and 45°C for 6 to 8 units. 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.
*5 Ensure the cable length is 30 m or less (20 m or less when IO-Link is used) for the M12 connector type.
*6 The zero line type should be used by connecting to the FS-MC8N/P and NU Series.
*7 This counts as 2 outputs and 2 inputs when connecting multiple units to the FS-MC8N/P and NU Series.

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