SMC Networks PF3W504, Руководство по эксплуатации

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-44-
No.PF
※※
-OMW0004-A
Integrated display type <IO-Link>
Body specification (Flow unit: L)
Model PF3W704 PF3W720 PF3W740
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
Display flow range
0.35 to 5.50 L/min
(Flow under 0.35 L/min is
displayed as "0.00
“.)
1.7 to 22.0 L/min
(Flow under 1.7 L/min is
displayed as "0.0
“.)
3.5 to 55.0 L/min
(Flow under 0.35 L/min is
displayed as "0.0
“.)
Switch point range 0.35 to 5.50 L/min 1.7 to 22.0 L/min 3.5 to 55.0 L/min
Min. setting unit 0.01 L/min 0.1 L/min
Conversion of
accumulated pulse
(Pulse width = 50ms)
0.05 L/pulse 0.1 L/pulse 0.5 L/pulse
Fluid temp. 0 to 90
o
C (No freezing and condensation)
Display unit L/min for real-time flow and L for accumulated flow
Accuracy ±3%F.S.
Repeatability ±2%F.S.

2
Temp. characteristics ±5%F.S. (25
o
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
999,999,999.9 L 9,999,999,999 L
By 0.1 L By 1 L
Switch output
Select from NPN or PNP open collector output
Max. load current 80 mA
Max. applied
voltage
30 V (during NPN output)
Internal voltage
drop
1.5 V or less (Load current 80 mA)
Delay time

5
3.5 ms or less
Variable 0 to 60 s/0.01 step
Hy
s
te
re
s
is
Hysteresis
mode
Variable from 0
Window
comparator
mode
Output protection Short circuit protection
O
u
tp
u
t
m
o
d
e
Flow
Select from hysteresis mode, window comparator mode, accumulated output mode,
accumulated pulse output mode, error output and switch off.
Temp. Selects the output for fluid temp. (hysteresis or window comparator mode).