Specs : Clamp-On Flow Sensor - FD-H series

Flow Sensors

Model		FD-H10	FD-H10K	FD-H20	FD-H20K	FD-H32	FD-H32K
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Type		Standard model	High-temperature model	Standard model	High-temperature model	Standard model	High-temperature model
Supported pipe diameter		1/4" (8A), ø13–16 ø0.51"-0.63" 3/8" (10A), ø16–18 ø0.63"-0.71"		1/2" (15A), ø18–23 ø0.71"-0.91" 3/4" (20A), ø23–28 ø0.91"-1.10"		1" (25A), ø28–37 ø1.10"-1.46" 1 1/4" (32A), ø37–44 ø1.46"-1.73"
Supported pipe materials		Metal piping, hard plastic piping^*1
Supported fluids		All fluids (water, oil, chemicals, etc.)^*1
Supported fluid temperature		0–85°C 32–185°F (no freezing on pipe surface)^*2	0–180°C 32–356°F (no freezing on pipe surface)^2^10	0–85°C 32–185°F (no freezing on pipe surface)^*2	0–180°C 32–356°F (no freezing on pipe surface)^2^10	0–85°C 32–185°F (no freezing on pipe surface)^*2	0–180°C 32–356°F (no freezing on pipe surface)^2^10
Maximum rated flow		1/4" (8A) : 20 L/min 5.3 gal/min 3/8" (10A) : 30 L/min 7.9 gal/min		1/2" (15A) : 60 L/min 15.9 gal/min 3/4" (20A) : 100 L/min 26.4 gal/min		1" (25A) : 200 L/min 52.8 gal/min 1 1/4" (32A) : 300 L/min 79.3 gal/min
Zero cut flow rate		0.3 L/min 0.08 gal/min (variable, initial value)		0.5 L/min 0.13 gal/min (variable, initial value)		1.0 L/min 0.3 gal/min (variable, initial value)
Detection principle		Delta TOF + Pulse Doppler
Function for automatic correction for speed of sound in liquid		Yes
Display		QVGA 2.0 model: color LCD, status indicator light
Display update cycle		Approx. 10 times/second
Display resolution	Instantaneous flow	0.01/0.1/1 (L/min) (default value: 0.1)				0.01/0.1/1 (L/min) (default value: 1)
	Integrated flow	0.01/0.1/1 (L) (default value: 0.1; up to 8 digits)				0.01/0.1/1 (L) (default value: 1; up to 8 digits)
Response time		0.5 s / 1.0 s / 2.5 s / 5.0 s / 10.0 s / 30.0 s / 60.0 s / 120.0 s / 200.0 s
Measurement accuracy		Between 10 and 100% of F.S.: ±3.0% of RD^3^4 Between 0 and 10% of F.S.: ±0.3% of F.S.^3^4
Repeatability		0.5 s: ±1.0%, 1 s: ±0.7%, 2.5 s: ±0.45%, 5 s: ±0.3%, 10 s: ±0.2%, 30 s: ±0.15%, 60 s: ±0.1% of F.S.^3^5
Hysteresis		Variable
Flow units		L/min m³/h G/min
Pulse output increments (L)		0.02–999.99
Pipe temperature measurement accuracy		±2.0°C ±3.5°F (pipe temperature 0–50°C 32–122°F) , ±3.0°C ±5.4°F (pipe temperature 50–85°C 122–185°F) (ambient temperature of 25°C 77°F)^*3	—	±2.0°C ±3.5°F (pipe temperature 0–50°C 32–122°F) , ±3.0°C ±5.4°F (pipe temperature 50–85°C 122–185°F) (ambient temperature of 25°C 77°F)^*3	—	±2.0°C ±3.5°F (pipe temperature 0–50°C 32–122°F) , ±3.0°C ±5.4°F (pipe temperature 50–85°C 122–185°F) (ambient temperature of 25°C 77°F)^*3	—
Network support		IO-Link^*6
Heat calculation function	Unit	MJ/h kW kBTU/h^*7
	Display resolution	Instantaneous value (MJ/h): 0.01/0.1/1 (default value 0.1); Integrated value (MJ): 0.01/0.1/1 (default value 0.1)^*7
	Pulse output increments (MJ)	0.02–999.99^*7
Data accumulation	Accumulation period	Approx. 1 year
	Data reading	USB2.0
Power I/O connector		M12 8-pin connector (male)
I/O (switchable)	Output (Ch1/2/3/4)	Instantaneous flow mode / area mode / pulse output mode / integrated flow mode / bubble detection mode / error output NPN/PNP setting switching, open collector output 30 VDC or less, max. 100 mA/Ch or less, residual voltage 2.5 V or less
	Analog output (Ch1/2)	4–20 mA/0–20 mA (switchable), load resistance 500 Ω or less
	External input (Ch2/3)	Integrated reset input / flow-rate zero input / zero-point adjustment input / bank input Short circuit current: 1.5 mA or less; input time: 20 ms or more
Power supply	Power voltage	20–30 VDC, ripple (P-P) 10% included, Class 2/LPS
	Current consumption	240 mA or less (when using flow sensor standalone; with analog output; excluding load current)^*8
Protection circuit		Protection against reverse power connection, power supply surges, output short circuits, and output surges
Environmental resistance	Enclosure rating	IP65/67 (IEC 60529)^*9
	Ambient temperature	Sensor head: −20 to +60°C –4 to +140°F (no freezing); Display unit: −20 to +50°C –4 to +122°F (no freezing)^*2
	Relative humidity	35–85% RH (no condensation)
	Vibration resistance	10–500 Hz; Power spectral density: 0.816 G²/Hz; X, Y and Z directions
	Shock resistance	100 m/s² (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z axes
Material	Display unit	Body: PPS/PET/POM; Display window: PAR
	Sensor head	Body: PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7	Body: PEEK/PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7	Body: PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7	Body: PEEK/PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7	Body: PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7	Body: PEEK/PPS/PET/PAR/SUS304 Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7
Weight		approx. 440 g 15.52 oz	approx. 490 g 17.28 oz	approx. 480 g 16.93 oz	approx. 540 g 19.05 oz	approx. 620 g 21.87 oz	approx. 680 g 23.99 oz
^1 For fluids through which ultrasonic waves propagate, and which do not contain a large quantity of bubbles. Detection may be unstable depending on the type and condition of the pipe. ^2 When the display unit is mounted directly on the sensor head, there is a de-rating according to the ambient temperature and fluid temperature. ^3 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement error may occur depending on the type and condition of the customer’s pipes, the type of fluid, the fluid temperature and other factors. ^4 This is the value for when the zero point is adjusted, for a constant 25°C 77°F environment, taking into account the linearity and span error. ^5 In a state where flow velocity distribution is stable. Does not include pulsation and fluctuations in flow velocity distribution due to equipment factors. Please also convert the given F.S. (full scale) using the rated flow range. ^6 Supports IO-Link specification v.1.1/COM2 (38.4 kbps). Setting files can be downloaded from the KEYENCE website (www.keyence.com). IO-Link is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO). ^7 Can be used when two temperature sensors (sold separately) are connected. ^8 640 mA or less including load. When connecting devices such as temperature sensors, please add on the current consumption of each sensor (up to a maximum of 830 mA or less). ^9 When a USB connection is in use, IP65/67 compliance is impaired. ^10 When using with fluids at temperatures of 140°C 284°F or greater, equip with the separately sold ultra-high-temperature couplant FD-HK1/HK2/HK3. Furthermore, the display unit must be separated from the sensor based on the de-rating.

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Flow Sensors

Model		FD-H22F	FD-H32F	FD-H47F	FD-H63F
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Type		Hose model
Supported pipe diameter		ø13–22.9 ø0.51"-0.90"	ø23–32.9 ø0.91"-1.295"	ø33–47.9 ø1.299"-1.886"	ø48–63 ø1.89"-2.48"
Supported pipe materials		Soft plastic piping, all hoses (braided hoses, pressure-resistant rubber hoses, etc.)^*1
Supported fluids		All fluids (water, oil, chemicals, etc.)^*1
Supported fluid temperature		0–100°C 32–212°F (no freezing on pipe surface)^*2
Maximum rated flow		60 L/min 15.9 gal/min	200 L/min 52.8 gal/min	300 L/min 79.3 gal/min	500 L/min 132.1 gal/min
Zero cut flow rate		0.5 L/min 0.13 gal/min (variable, initial value)	1.0 L/min 0.3 gal/min (variable, initial value)	2.0 L/min 0.5 gal/min (variable, initial value)	5.0 L/min 1.3 gal/min (variable, initial value)
Detection principle		Delta TOF
Function for automatic correction for speed of sound in liquid		—
Display		QVGA 2.0 model: color LCD, status indicator light
Display update cycle		Approx. 10 times/second
Display resolution	Instantaneous flow	0.01/0.1/1 (L/min) (default value: 0.1)		0.01/0.1/1 (L/min) (default value: 1)
	Integrated flow	0.01/0.1/1 (L) (default value: 0.1; up to 8 digits)		0.01/0.1/1 (L) (default value: 1; up to 8 digits)
Response time		0.5 s / 1.0 s / 2.5 s / 5.0 s / 10.0 s / 30.0 s / 60.0 s / 120.0 s / 200.0 s
Measurement accuracy		—
Repeatability		0.5 s: ±1.0%, 1 s: ±0.7%, 2.5 s: ±0.45%, 5 s: ±0.3%, 10 s: ±0.2%, 30 s: ±0.15%, 60 s: ±0.1% of F.S.^3^4
Hysteresis		Variable
Flow units		L/min m³/h G/min
Pulse output increments (L)		0.02–999.99
Pipe temperature measurement accuracy		—
Network support		IO-Link^*5
Heat calculation function	Unit	MJ/h kW kBTU/h^*6
	Display resolution	Instantaneous value (MJ/h): 0.01/0.1/1 (default value 0.1); Integrated value (MJ): 0.01/0.1/1 (default value 0.1)^*6
	Pulse output increments (MJ)	0.02–999.99^*6
Data accumulation	Accumulation period	Approx. 1 year
	Data reading	USB2.0
Power I/O connector		M12 8-pin connector (male)
I/O (switchable)	Output (Ch1/2/3/4)	Instantaneous flow mode / area mode / pulse output mode / integrated flow mode / bubble detection mode / error output NPN/PNP setting switching, open collector output 30 VDC or less, max. 100 mA/Ch or less, residual voltage 2.5 V or less
	Analog output (Ch1/2)	4–20 mA/0–20 mA (switchable), load resistance 500 Ω or less
	External input (Ch2/3)	Integrated reset input / flow-rate zero input / zero-point adjustment input / bank input Short circuit current: 1.5 mA or less; input time: 20 ms or more
Power supply	Power voltage	20–30 VDC, ripple (P-P) 10% included, Class 2/LPS
	Current consumption	240 mA or less (when using flow sensor standalone; with analog output; excluding load current)^*7
Protection circuit		Protection against reverse power connection, power supply surges, output short circuits, and output surges
Environmental resistance	Enclosure rating	IP65/67 (IEC 60529)^*8
	Ambient temperature	Sensor head: −20 to +60°C –4 to +140°F (no freezing); Display unit: −20 to +50°C –4 to +122°F (no freezing)^*2
	Relative humidity	35–85% RH (no condensation)
	Vibration resistance	10–500 Hz; Power spectral density: 0.816 G²/Hz; X, Y and Z directions
	Shock resistance	100 m/s² (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z axes
Material	Display unit	Body: PPS/PET/POM; Display window: PAR
	Sensor head	Body: PPS/PET/PAR/SUS304; Cable: PVC Sensor element: special rubber; Mounting bracket: PPS/PBT/POM/SUS304/SUSXM7
Weight		approx. 770 g 27.16 oz	approx. 880 g 31.04 oz	approx. 1130 g 39.86 oz	approx. 1360 g 47.97 oz
^1 For fluids through which ultrasonic waves propagate, and which do not contain a large quantity of bubbles. Detection may be unstable depending on the type and condition of the pipe. ^2 When the display unit is mounted directly on the sensor head, there is a de-rating according to the ambient temperature and fluid temperature. ^3 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement error may occur depending on the type and condition of the customer’s pipes, the type of fluid, the fluid temperature and other factors. ^4 In a state where flow velocity distribution is stable. Does not include pulsation and fluctuations in flow velocity distribution due to equipment factors. Please also convert the given F.S. (full scale) using the rated flow range. ^5 Supports IO-Link specification v.1.1/COM2 (38.4 kbps). Setting files can be downloaded from the KEYENCE website (www.keyence.com). IO-Link is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO). ^6 Can be used when two temperature sensors (sold separately) are connected. ^7 640 mA or less including load. When connecting devices such as temperature sensors, please add on the current consumption of each sensor (up to a maximum of 830 mA or less). ^8 When a USB connection is in use, IP65/67 compliance is impaired.

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Temperature Sensors

Model			FI-T8	FI-T15	FI-T25	FI-T50	FI-T100	FI-T200
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Supported pipe diameter			1/8", 1/4" (6 A, 8 A) ø8–14 ø0.31"–0.55"	3/8", 1/2" (10A, 15A) ø14–22 ø0.55"–0.87"	3/4", 1" (20A, 25A) ø22–38 ø0.87"–1.50"	1 1/4", 1 1/2", 2" (32A, 40A, 50A) ø38–70 ø1.50"–2.76"	2 1/2", 3", 3 1/2", 4" (65 A, 80 A, 90 A, 100 A) ø70–126 ø2.76"–4.96"	5", 6", 8" (125A, 150A, 200A) ø126–220 ø4.96"–8.66"
Supported pipe materials			Metal piping
Supported temperature range			−20 to +180°C –4 to +356°F^*1
Display method			Organic EL, status indicator light
Display resolution			0.1°C 32.18°F
Response time			5 s (50% response), 15 s (90% response)^*2
Display amplifier averaging time			0.1 s / 10.0 s / 20.0 s / 30.0 s / 60.0 s / 120.0 s / 300.0 s
Measurement accuracy			±0.5°C ±0.9°F (pipe temperature −20 to +80°C –4 to 176°F) (ambient temperature of 25°C 77°F)^2^3 ±1.0°C ±1.8°F (pipe temperature 80–180°C 176–356°F) (ambient temperature of 25°C 77°F)^2^3
Hysteresis			Variable
Measurement principle			Pt100 4-wire type
Power I/O connector			M8 4-pin connector
Power supply	Current consumption		20 mA or less (excluding load current)^*4
When used standalone	I/O (switchable)	Output (Ch1/Ch2)	Control output: switching NPN/PNP setting Open collector output: 30 VDC or less, maximum 100 mA/ch or less, residual voltage 2.5 V or less^*5
		Analog output (Ch2)	4–20 mA / 0–20 mA (switchable), load resistance 260 Ω or less^*5
	Power voltage		20–30 VDC, ripple (P-P) 10% included; Class2/LPS^*5
	Protection circuit		Protection against reverse power connection, power supply surges, output short circuits, and output surges^*5
	Network compatibility		IO-Link^6^5
Environmental resistance	Enclosure rating		IP65/IP67 (IEC60529)
	Ambient temperature		–10 to +60°C -14 to +140°F (no freezing)
	Relative humidity		35–85% RH (no condensation)
	Vibration resistance		10–500 Hz; power spectral density: 0.816 G²/Hz; X, Y and Z directions
	Shock resistance		100 m/s² (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z directions
Material	Display amplifier		PBT / PAR / POM / SUS303
	Sensor head		Head: PPS / SUS303 / Sn; Pipe clamp unit: SUS304; Cable: fluororesin
	Display amplifier mounting bracket		SUS304
Weight			Approx. 70 g 2.47 oz	Approx. 80 g 2.82 oz	Approx. 65 g 2.29 oz	Approx. 70 g 2.47 oz	Approx. 100 g 3.53 oz	Approx. 120 g 4.23 oz
^1 When pipe temperature is 100°C 212°F or more, the display amplifier cannot be mounted on the pipe clamp unit. Install the amplifier so it is insulated from the heat from the pipe. ^2 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement error may occur depending on the type and condition of the customer’s pipes and fluid, the ambient temperature and other factors. ^3 This is the value for a constant 25°C 77°F environment, taking into account absolute error and repeatability. ^4 During standalone use, 220 mA or less including load. ^5 When connecting to a FD-H Series/FI-1000 model, please follow the specifications of the display unit. ^6 Supports IO-Link specification v.1.1/COM2 (38.4 kbps). Setting files can be downloaded from the KEYENCE website (www.keyence.com). IO-Link is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO).

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Concentration Sensors

Model		FI-C20D	FI-C40F
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Type		Probe type	Pipe type
Attachment		—	FI-CF1/3, FI-CF2/4
Detection principle		Refractive index (surface light source)
Rated concentration range		Brix: 0–20% (nD: 1.32500–1.37000)	Brix: 0–40% (nD: 1.32500–1.41000)
Display method		Status indicator light
Display range		Brix: 0–25%	Brix: 0–50%
Supported fluids		Non-corrosive aqueous solutions (such as water-soluble coolants, mold release agents, etc.)^*1
Supported fluid temperature		0–70°C 32–158°F (no freezing)
Connection diameter		—	FI-CF1: Rc3/4 (20 A); FI-CF3: NPT3/4 FI-CF2: Rc1 1/2 (40 A); FI-CF4: NPT1 1/2
Rated pressure range			1.0 MPa or less
Pressure resistance			2.0 MPa
Display resolution		Brix: 0.01/0.1% (default value: 0.1) (nD: 0.00001)
Response time		1.0 s / 2.5 s / 5.0 s / 10.0 s / 30.0 s / 60.0 s / 120.0 s / 200.0 s
Measurement accuracy		Brix: ±0.2%^2^3 (nD: ±0.0003)
Concentration unit		Brix nD^*4
Temperature measurement accuracy		±1.0°C 1.8°F^*2
Power supply	Current consumption	25 mA or less
Environmental resistance	Enclosure rating	IP65/IP67 (IEC60529)
	Ambient temperature	–10 to +60°C 14 to +140°F (no freezing)
	Relative humidity	35–85% RH (no condensation)
	Vibration resistance	10–500 Hz; Power spectral density: 0.816 G²/Hz; X, Y and Z directions
	Shock resistance	100 m/s² (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z directions
Material	Liquid end materials	Sensor element: synthetic quartz Body: aluminum die-cast (nickel chrome plating) / SUS304 Pipe: aluminum alloy (anodized); Gasket: FKM	Sensor element: sapphire Body: SCS16A; Gasket: FFKM
	Other materials	Indicator light: PPSU / TPU / PBT Cable: PUR	Body: SUS304; PPS indicator light: PPSU / TPU / PBT Cable: PVC
Weight		Approx. 480 g 16.93 oz	Approx. 410 g 14.46 oz
^1 Use water as the solvent, and use materials that are soluble in water. If the particles are not water soluble, such as with slurry, the refractive index may not change. ^2 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement error may occur depending on the type, condition and temperature of the fluid used by the customer, as well as other factors. ^3 This is the value obtained when sucrose solution is used in a constant 20°C 68°F environment, and absolute error and repeatability is taken into account. ^4 When using solutions other than sucrose solutions, concentration can be adjusted via span adjustment.

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Standalone Display Unit

Model		FI-1000
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Display		QVGA 2.0 model: color LCD, status indicator light
Display update cycle		Approx. 10 times/second
Network support		IO-Link^*1
Heat calculation function	Unit	MJ/h, kW, kBTU/h, GJ/h, MW, MBTU/h^*2
	Display resolution	Instantaneous value (MJ/h): 0.01/0.1/1 (default value 0.1); Integrated value (MJ): 0.01/0.1/1 (default value 0.1)^*2
	Pulse output increments (MJ)	0.02–999.99^*2
Data accumulation	Accumulation period	Approx. 1 year
	Data reading	USB2.0
Power I/O connector		M12 8-pin connector (male)
I/O (switchable)	Output (Ch1/2/3/4)	NPN/PNP setting switching, open collector output 30 VDC or less, max. 100 mA/ch or less, residual voltage 2.5 V or less
	Analog output (Ch1/2)	4–20 mA/0–20 mA (switchable), load resistance 500 Ω or less
	External input (Ch2/3)	Short circuit current: 1.5 mA or less; input time: 20 ms or more
Power supply	Power voltage	20–30 VDC, ripple (P-P) 10% included, Class 2/LPS
	Current consumption	55 mA or less (display unit standalone, excluding load current)^*3
Protection circuit		Protection against reverse power connection, power supply surges, output short circuits, and output surges
Environmental resistance	Enclosure rating	IP65/IP67 (IEC60529)^*4
	Ambient temperature	–20°C to +50°C –4°F to +122°F (no freezing)
	Relative humidity	35–85% RH (no condensation)
	Vibration resistance	10–500 Hz; Power spectral density: 0.816 G²/Hz; X, Y and Z directions
	Shock resistance	100 m/s² (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z directions
Material		Body: PPS / PET / POM; Display window: PAR
Weight		Approx. 120 g 4.23 oz
^1 Supports IO-Link specification v.1.1/COM2 (38.4 kbps). Setting files can be downloaded from the KEYENCE website (www.keyence.com). IO-Link is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO). ^2 Available when the separately sold flow meter FD-R Series and two temperature sensors are connected. ^3 455 mA or less including load. When connecting devices such as temperature sensors, please add on the current consumption of each sensor (to a maximum of 830 mA or less). ^4 When a USB connection is in use, IP65/67 compliance is impaired.

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Specs Clamp-On Flow Sensor FD-H series

Flow Sensors

Flow Sensors

Temperature Sensors

Concentration Sensors

Standalone Display Unit