SMC Networks PF3W7 Series, Operation Manual

Page: 69 / 93

-68-
No.PF
※※
-OMM0005-N
Specification
■
Specifications
Specifications of body (Metal attachment)
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
o
C (No freezing and condensation)
0 to 70
o
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
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
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).