Model | FD-H20K |
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Type | High-temperature model |
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Supported pipe diameter | 1/2" (15A), ø18–23 ø0.71"-0.91"3/4" (20A), ø23–28 ø0.91"-1.10" |
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Supported pipe materials | hard plastic piping*1, Metal piping |
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Supported fluids | All fluids (water, chemicals, etc.)*1, oil |
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Supported fluid temperature | 0–180°C 32–356°F (no freezing on pipe surface)*2*3 |
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Maximum rated flow | 1/2" (15A) : 60 L/min 15.9 gal/min3/4" (20A) : 100 L/min 26.4 gal/min |
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Zero cut flow rate | initial value), 0.5 L/min 0.13 gal/min (variable |
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Detection principle | Delta TOF + Pulse Doppler |
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Function for automatic correction for speed of sound in liquid | Yes |
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Display | QVGA 2.0 model: color LCD, status indicator light |
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Display update cycle | Approx. 10 times/second |
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Display Resolution | 0.01/0.1/1 (L) (default value: 0.1; up to 8 digits), 0.01/0.1/1 (L/min) (default value: 0.1) |
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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 |
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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 |
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Repeatability | 0.5 s: ±1.0%, 1 s: ±0.7%, 10 s: ±0.2%, 2.5 s: ±0.45%, 30 s: ±0.15%, 5 s: ±0.3%, 60 s: ±0.1% of F.S.*4*6 |
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Hysteresis | Variable |
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Flow units | L/min m3/h G/min |
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Pulse output increments (L) | 0.02–999.99 |
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Pipe temperature measurement accuracy | — |
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Network support | IO-Link*7 |
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Heat calculation function | 0.02–999.99*8, 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, MJ/h kW kBTU/h*8 |
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Data accumulation | Approx. 1 year, USB2.0 |
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Power I/O connector | M12 8-pin connector (male) |
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I/O (switchable) | 4–20 mA/0–20 mA (switchable), Instantaneous flow mode / area mode / pulse output mode / integrated flow mode / bubble detection mode / error outputNPN/PNP setting switching, 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, load resistance 500 Ω or less, max. 100 mA/Ch or less, open collector output 30 VDC or less, residual voltage 2.5 V or less |
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Power supply | 20–30 VDC, 240 mA or less (when using flow sensor standalone; with analog output; excluding load current)*9, Class 2/LPS, ripple (P-P) 10% included |
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Protection Circuit | Protection against reverse power connection, and output surges, output short circuits, power supply surges |
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Environmental resistance | Y and Z axes, 10–500 Hz; Power spectral density: 0.816 G2/Hz; X, 100 m/s2 (approx. 10 G), 1000 times each for X, 16 ms pulses, 35–85% RH (no condensation), IP65/67 (IEC 60529)*10, 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, Y and Z directions |
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material | Body: PEEK/PPS/PET/PAR/SUS304Sensor element: special rubber; Mounting bracket: SUS304/SUSXM7, Body: PPS/PET/POM; Display window: PAR |
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Weight | approx. 540 g 19.05 oz |
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Brand | Keyence |
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