Air Flow and Pressure Dual Sensor

FD-EP series

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Specs Air Flow and Pressure Dual Sensor FD-EP series

Sensor head

Model

FD-EPH4

FD-EPH5

FD-EPH6

FD-EPH7

FD-EPH8

Image

Pipe size

Outer diameter of pipe

ø4 0.16" *1

3/16” (Approx.
4.76 mm 0.19") *1

ø6 0.24" *1

1/4” (Approx.
6.35 mm 0.25") *1

ø8 0.31" *1

Compatible outer diameter range

Polyurethane

4.0 ±0.1 mm
0.16" ±0.004"

4.76 ±0.15 mm
0.19" ±0.006"

6.0 ±0.1 mm
0.24" ±0.004"

6.35 ±0.15 mm
0.25" ±0.006"

8.0 ±0.1 mm
0.31" ±0.004"

Nylon

4.0 ±0.08 mm
0.16" ±0.003"

4.76 ±0.1 mm
0.19" ±0.004"

6.0 ±0.08 mm
0.24" ±0.003"

6.35 ±0.1 mm
0.25" ±0.004"

8.0 ±0.08 mm
0.31" ±0.003"

Pipe materials

Resin pipe connectible to a one-touch coupling

Supported gases

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

Supported gas temperature

−10°C to +60°C 14 to 140°F

Pressure resistance

1 MPa

Flow rate detection principle

Ultrasonic transmission time difference method

Flow rate specifications

Rated flow rate

(volume flow rate)

25 L/min 0.88 CFM

30 L/min 1.06 CFM

60 L/min 2.12 CFM

100 L/min 3.53 CFM

(20°C 68°F, atmospheric pressure conversion) * Initial display

Gas at 20°C 68°F, 0.0 MPa

Gas at 20°C 68°F, 0.2 MPa

75 L/min 2.65 CFM

90 L/min 3.18 CFM

180 L/min 6.35 CFM

300 L/min 10.59 CFM

Gas at 20°C 68°F, 0.4 MPa

125 L/min 4.41 CFM

150 L/min 5.30 CFM

300 L/min 10.59 CFM

500 L/min 17.7 CFM

Gas at 20°C 68°F, 0.6 MPa

175 L/min 6.18 CFM

210 L/min 7.41 CFM

420 L/min 14.8 CFM

700 L/min 24.7 CFM

Measurement accuracy

±(2.0% of RD+1.0% of F.S.)*3*4

Repeatability

Response time of 250 ms: ±2.5% of F.S.*3*5

Pressure specifications

Rated pressure

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

Overall accuracy

±2.0% of F.S.*3

Repeatability

Response time of 2.5 ms: ±0.4% of F.S.

Display resolution

Instantaneous flow

0.01/0.1 L/min

Accumulated flow

0.01/0.1/1/10/100 L

Pressure

0.1/1 kPa

Environmental resistance

Enclosure rating

IP65 (IEC60529)

Ambient temperature

−10°C to +60°C 14 to 140°F (no freezing)

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

Material

Sensor unit (parts that do not contact the gas)

PBT/PAR/iron/brass/POM/NBR/stainless steel/aluminum

PBT/PAR/iron/brass/POM/NBR/stainless steel

PBT/PAR/iron/brass/POM/NBR/stainless steel/aluminum

PBT/PAR/iron/brass/POM/NBR/stainless steel

PBT/PAR/iron/brass/POM/NBR/stainless steel/aluminum

Flow channel (parts that contact the gas)

PBT/nickel-plated brass/NBR/nylon

Weight

Approx. 127 g 4.48 oz

Approx. 128 g 4.52 oz

Approx. 127 g 4.48 oz

Approx. 129 g 4.55 oz

Approx. 145 g 5.11 oz

*1 To ensure stable detection, it is recommended to use a pipe inner diameter that is at least equivalent to the inner diameter of this product.
*2 Gases that transmit ultrasonic waves. Measurement may be unstable due to the pressure inside of the pipe and the type of gas.
*3 This value is guaranteed by KEYENCE inspection facilities. Errors will be introduced by factors such as the condition and type of pipes as well as the temperature and type of gas.
*4 This specification is valid when sufficient straight sections of pipe are provided and the flow velocity distribution is stable. This value does not take into account the effects of fluctuations in flow velocity distribution due to facility factors.
*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

Pipe size

Outer diameter of pipe

3/8” (Approx.
9.53 mm 0.38") *1

ø10 0.39" *1

ø12 0.47" *1

1/2” (Approx.
12.7 mm 0.50") *1

Compatible outer diameter range

Polyurethane

9.53 ±0.15 mm
0.38" ±0.006"

10.0 ±0.15 mm
0.39" ±0.006"

12.0 ±0.15 mm
0.47" ±0.006"

12.7 ±0.15 mm
0.50" ±0.006"

Nylon

9.53 ±0.1 mm
0.38" ±0.004"

10.0 ±0.08 mm
0.39" ±0.003"

12.0 ±0.1 mm
0.47" ±0.004"

12.7 ±0.1 mm
0.50" ±0.004"

Pipe materials

Resin pipe connectible to a one-touch coupling

Supported gases

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

Supported gas temperature

−10°C to +60°C 14 to 140°F

Pressure resistance

1 MPa

Flow rate detection principle

Ultrasonic transmission time difference method

Flow rate specifications

Rated flow rate

(volume flow rate)

150 L/min 5.30 CFM

250 L/min 8.83 CFM

(20°C 68°F, atmospheric pressure conversion) * Initial display

Gas at 20°C 68°F, 0.0 MPa

Gas at 20°C 68°F, 0.2 MPa

450 L/min 15.9 CFM

750 L/min 26.5 CFM

Gas at 20°C 68°F, 0.4 MPa

750 L/min 26.5 CFM

1250 L/min 44.1 CFM

Gas at 20°C 68°F, 0.6 MPa

1050 L/min 37.1 CFM

1750 L/min 61.8 CFM

Measurement accuracy

±(2.0% of RD+1.0% of F.S.)*3*4

Repeatability

Response time of 250 ms: ±2.5% of F.S.*3*5

Pressure specifications

Rated pressure

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

Overall accuracy

±2.0% of F.S.*3

Repeatability

Response time of 2.5 ms: ±0.4% of F.S.

Display resolution

Instantaneous flow

0.1/1 L/min

Accumulated flow

0.1/1/10/100/1000 L

Pressure

0.1/1 kPa

Environmental resistance

Enclosure rating

IP65 (IEC60529)

Ambient temperature

−10°C to +60°C 14 to 140°F (no freezing)

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

Material

Sensor unit (parts that do not contact the gas)

PBT/PAR/iron/brass/POM/NBR/stainless steel

PBT/PAR/iron/brass/POM/NBR/stainless steel/aluminum

PBT/PAR/iron/brass/POM/NBR/stainless steel

Flow channel (parts that contact the gas)

PBT/nickel-plated brass/NBR/nylon

Weight

Approx. 193 g 6.81 oz

Approx. 180 g 6.35 oz

Approx. 201 g 7.09 oz

Approx. 208 g 7.34 oz

*1 To ensure stable detection, it is recommended to use a pipe inner diameter that is at least equivalent to the inner diameter of this product.
*2 Gases that transmit ultrasonic waves. Measurement may be unstable due to the pressure inside of the pipe and the type of gas.
*3 This value is guaranteed by KEYENCE inspection facilities. Errors will be introduced by factors such as the condition and type of pipes as well as the temperature and type of gas.
*4 This specification is valid when sufficient straight sections of pipe are provided and the flow velocity distribution is stable. This value does not take into account the effects of fluctuations in flow velocity distribution due to facility factors.
*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

Number of control outputs

3

─*7

Number of analog outputs

1

─

Number of external inputs

2

─*7

Power supply cable

2 m 6.6', strand wire, 8 cores

Pigtail, 100 mm 3.94", M12 connector, 8 pins

No cable

Response time (90% response)

Flow rate

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

Pressure

2.5 ms/10 ms/50 ms/100 ms/250 ms/1 s/5 s (selectable, initial value: 2.5 ms) *1

I/O

Control outputs 1, 2, and 3

Instantaneous flow/Accumulated flow/Pressure/Alarm output/Predictive maintenance output/Seating Confirmation (output 1 only)/Pulse output NPN/PNP setting switchable, 100 mA or less total for three outputs, residual voltage: 2.5 V or less

Analog output

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

External inputs 1 and 2

Zero flow/Origin adjust./Atmospheric pressure correction/Pressure zero shift/Reset total/App. learning/App. reset Short-circuit current: 1.5 mA or less

Network compatibility

IO-Link*2

NU Series compatibility

Number of connectible units

─

Eight units per one NU1 main unit; four units per one FS-MC8N/P main unit*6

Protection circuit

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

Protection against incorrect head cable wiring

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°C to +55°C 14 to 131°F (no freezing)*4

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

Material

Main unit: polycarbonate, FG terminal: copper/iron

Weight

Approx. 90 g 3.17 oz

Approx. 42 g 1.48 oz

Approx. 26 g 0.92 oz

*1 5 ms is added to the analog output response time and the response is set to 63%.
*2 IO-Link: Compatible with specification v1.1/COM3 (230.4 kbps).
*3 190 mA or less with the load included.
*4 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.
*5 Ensure the cable length is 30 m 98.4' or less (20 m or less when using IO-Link) for the M12 connector type.
*6 To use the zero line type, connect it to the FS-MC8N/P, NU Series.
*7 This counts as 2 outputs/2 inputs when connecting multiple units to the FS-MC8N/P, NU Series.

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