SMC Networks PF3W504, Руководство по эксплуатации

Страница: 43 / 74

-42-
No.PF
※※
-OMW0004-A
Integrated display type: PF3W7 series
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 3.5 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 = 50 ms)
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. max. Display and analogue output
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
99999999.9 L 999999999 L
By 0.1 L By 0.5 L By 1 L
Switch output
Select from 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
O
u
tp
u
t
m
o
d
e
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 temp. (hysteresis or window comparator mode).