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SMC PF3W7 Digital Flow Switch for Water, 3-Color Display, Integrated Display – PF3W704-N03-BT-F

Model: SMC PF3W7

Origin: JAPAN

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توان تجهیز دنا

توضیحات محصول

5/5 - (2 امتیاز)
Model
PF3W704
PF3W720
PF3W740
PF3W711
PF3W721
Applicable fluid
Water and ethylene glycol solution with a viscosity of 3mPa•s (3 cP) or less *1
Detection method
Karman vortex
Rated flow range
0.5 to 4 L/min
2 to 16 L/min
5 to 40 L/min
10 to 100 L/min
50 to 250 L/min
Display flow range
0.35 to 5.50 L/min (Displays 0.00 when the value is below 0.35 L/min)
1.7 to 22.0 L/min (Displays 0.0 when the value is below 1.7 L/min)
3.5 to 55.0 L/min (Displays 0.0 when the value is below 3.5 L/min)
7 to 140 L/min (Displays 0 when the value is below 7 L/min)
20 to 350 L/min (Displays 0 when the value is below 20 L/min)
Switch point range
0.35 to 5.50 L/min
1.7 to 22.0 L/min
3.5 to 55.0 L/min
7 to 140 L/min
20 to 350 L/min
Min. setting unit
0.01 L/min
0.1 L/min
1 L/min
2 L/min
Conversion of accumulated pulse (Pulse width = 50 ms)
0.05 L/pulse
0.1 L/pulse
0.5 L/pulse
1 L/pulse
2 L/pulse
Fluid temperature
0 to 90 °C (No freezing and condensation)
0 to 70 °C (No freezing and condensation)
Display unit
L/min for real-time flow and L for accumulated flow
Accuracy
±3%F.S. max. Display and analogue output
Repeatability
±2%F.S. max *2
Temperature characteristics
±5%F.S. max. (25 °C reference)
Operating pressure range *3
Refer to graph of operating pressure and proof pressure
Proof pressure *3
Refer to graph of operating pressure and proof pressure
Pressure loss
Refer to graph of pressure loss
Accumulated flow range *4
99999999.9 L
999999999 L
By 0.1 L
By 0.5 L
By 1 L
Switch output
NPN or PNP open collector output
Max. load current
80 mA
Max. applied voltage
28 VDC
Internal voltage drop
NPN: 1 V max. (at 80 mA load current)
PNP: 1.5 V max. (at 80 mA load current)
Response time *2 *5
0.5 s/1 s/2 s
Output protection
Short circuit protection
Output mode Flow
Selects one of the output (hysteresis or window comparator mode), the output for the accumulated flow and the accumulated pulse output.
Temp
Selects the output for fluid temperature (hysteresis mode or window comparator mode).
Analogue output Response time *6
0.5 s/1 s/2 s
Voltage output
Output voltage: 1 to 5 V
Output impedance: 1 kΩ
Current output
Output current: 4 to 20 mA
Maximum load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC
Hysteresis
Variable
External input
Voltage free input of 0.4 V or less (reed or solid state type) for 30 ms or longer
Display method
2-screen display (Main screen: 4-digit, 7-segment, 2-colour; red/green, Sub screen: 6-digit, 11-segment, White)
Display updating frequency 5 times/sec.
Indicator light
Output 1 and 2: Orange
Power supply voltage
12 to 24 VDC ±10%
Current consumption
50 mA max.

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