| Model | FD-H20K | |||
| Type | High-temperature model | |||
| Supported pipe diameter | 1/2″ (15A), ø18–23 ø0.71″-0.91″3/4″ (20A), ø23–28 ø0.91″-1.10″ | |||
| Supported pipe materials | Metal piping, hard plastic piping*1 | |||
| Supported fluids | All fluids (water, oil, chemicals, etc.)*1 | |||
| Supported fluid temperature | 0–180°C 32–356°F (no freezing on pipe surface)*2*3 | |||
| Maximum rated flow | 1/2″ (15A) : 60 L/min 15.9 gal/min3/4″ (20A) : 100 L/min 26.4 gal/min | |||
| Zero cut flow rate | 0.5 L/min 0.13 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) | ||
| Integrated flow | 0.01/0.1/1 (L) (default value: 0.1; 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*4*5Between 0 and 10% of F.S.: ±0.3% of F.S.*4*5 | |||
| 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.*4*6 | |||
| 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*7 | |||
| Heat calculation function | Unit | MJ/h kW kBTU/h*8 | ||
| 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)*8 | |||
| Pulse output increments (MJ) | 0.02–999.99*8 | |||
| 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 outputNPN/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 inputShort 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)*9 | |||
| Protection circuit | Protection against reverse power connection, power supply surges, output short circuits, and output surges | |||
| Environmental resistance | Enclosure rating | IP65/67 (IEC 60529)*10 | ||
| 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: PEEK/PPS/PET/PAR/SUS304Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7 | |||
| Weight | approx. 540 g 19.05 oz | |||
Cảm biến lưu lượng Keyence FD-H20K
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Cảm biến lưu lượng Keyence FD-H20K
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- Cảm biến lưu lượng Keyence FD-H20K
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