Cảm biến lưu lượng Keyence FD-H20K

Flow Sensors High-temperature model 15A/20A
SKU: FD-H20K
Hãng sản xuất: Keyence
Chất lượng: Mới 100%
Bảo hành: Chính hãng
Chứng từ: CO/CQ, hóa đơn VAT

Báo giá
ModelFD-H20K
TypeHigh-temperature model
Supported pipe diameter1/2″ (15A), ø18–23 ø0.71″-0.91″
3/4″ (20A), ø23–28 ø0.91″-1.10″
Supported pipe materialsMetal piping, hard plastic piping*1
Supported fluidsAll fluids (water, oil, chemicals, etc.)*1
Supported fluid temperature0–180°C 32–356°F (no freezing on pipe surface)*2*3
Maximum rated flow1/2″ (15A) : 60 L/min 15.9 gal/min
3/4″ (20A) : 100 L/min 26.4 gal/min
Zero cut flow rate0.5 L/min 0.13 gal/min (variable, initial value)
Detection principleDelta TOF + Pulse Doppler
Function for automatic correction for speed of sound in liquidYes
DisplayQVGA 2.0 model: color LCD, status indicator light
Display update cycleApprox. 10 times/second
Display resolutionInstantaneous flow0.01/0.1/1 (L/min) (default value: 0.1)
Integrated flow0.01/0.1/1 (L) (default value: 0.1; up to 8 digits)
Response time0.5 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 accuracyBetween 10 and 100% of F.S.: ±3.0% of RD*4*5
Between 0 and 10% of F.S.: ±0.3% of F.S.*4*5
Repeatability0.5 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.*4*6
HysteresisVariable
Flow unitsL/min m3/h G/min
Pulse output increments (L)0.02–999.99
Pipe temperature measurement accuracy
Network supportIO-Link*7
Heat calculation functionUnitMJ/h kW kBTU/h*8
Display resolutionInstantaneous value (MJ/h): 0.01/0.1/1 (default value 0.1); Integrated value (MJ): 0.01/0.1/1 (default value 0.1)*8
Pulse output increments (MJ)0.02–999.99*8
Data accumulationAccumulation periodApprox. 1 year
Data readingUSB2.0
Power I/O connectorM12 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 supplyPower voltage20–30 VDC, ripple (P-P) 10% included, Class 2/LPS
Current consumption240 mA or less (when using flow sensor standalone; with analog output; excluding load current)*9
Protection circuitProtection against reverse power connection, power supply surges, output short circuits, and output surges
Environmental resistanceEnclosure ratingIP65/67 (IEC 60529)*10
Ambient temperatureSensor 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 humidity35–85% RH (no condensation)
Vibration resistance10–500 Hz; Power spectral density: 0.816 G2/Hz; X, Y and Z directions
Shock resistance100 m/s2 (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z axes
MaterialDisplay unitBody: PPS/PET/POM; Display window: PAR
Sensor headBody: PEEK/PPS/PET/PAR/SUS304
Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7
Weightapprox. 540 g 19.05 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 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.
*4 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.
*5 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.
*6 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.
*7 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).
*8 Can be used when two temperature sensors (sold separately) are connected.
*9 640 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).
*10 When a USB connection is in use, IP65/67 compliance is impaired.

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