Specs : Flow and Pressure Dual Sensor - FD-EP series

Sensor head

Model				FD-EPH4	FD-EPH5	FD-EPH6	FD-EPH7	FD-EPH8
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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/POM/NBR/Stainless steel/Aluminium	PBT/PAR/Iron/Brass/POM/NBR/Stainless steel	PBT/PAR/Iron/Brass/POM/NBR/Stainless steel/Aluminium	PBT/PAR/Iron/Brass/POM/NBR/Stainless steel	PBT/PAR/Iron/Brass/POM/NBR/Stainless steel/Aluminium
	Flow path (part in contact with fluids)			PBT/Brass/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
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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/POM/NBR/Stainless steel	PBT/PAR/Iron/Brass/POM/NBR/Stainless steel/Aluminium		PBT/PAR/Iron/Brass/POM/NBR/Stainless steel
	Flow path (part in contact with fluids)			PBT/Brass/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
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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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Specs Flow and Pressure Dual Sensor FD-EP series

Sensor head

Amplifier Units