SMC Networks PF3W504, Operation Manual

Page: 49 / 74

-48-
No.PF
※※
-OMW0004-A
Remote sensor type: PF3W5 series
Model PF3W504 PF3W520 PF3W540
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
Fluid temp. 0 to 90
o
C (No freezing and condensation)
Accuracy
±
3%F.S.
Repeatability
±
2%F.S.
Temp. characteristics
±
5%F.S. (25
o
C reference)
Operating pressure range

2
Refer to graph of operating pressure and proof pressure
Proof pressure

2
Refer to graph of operating pressure and proof pressure
Pressure loss Refer to graph of pressure loss
An
a
lo
g
ue
o
u
tp
u
t
Response time

3
1 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
Indicator light
LED for power supply,
LED for flow rate indicator (Flashing speed changes depending on the flow rate.),
LED for other error display
Power supply voltage 12 to 24 VDC ±10%
Current consumption 30 mA or less
En
v
iro
n
m
e
n
t
Enclosure IP65
Operating temp.
range
0 to 50
o
C (No freezing and condensation)
Operating humidity
range
Operation, Storage: 35 to 85%R.H. (No condensation)
Withstand voltage

4
1000 VAC, for 1 minute between the terminals and housing
Insulation
resistance
50 MΩ min. (with 500 VDC) between the terminals and housing
Standards and regulations CE marked (EMC directive, RoHS directive)
Material of wetted part
PPS, SUS304, FKM
Grease free

1: Please refer to the chart of measurement range of ethylene glycol aqueous solution on page 50 . Measurement is possible as long as
the fluid does not corrode the wetted parts, and viscosity is 3mPa

s (3 cP) or less. Be aware that water leakage may happen due to
internal seal shrinkage or swelling depending on kinds of fluid.

2: The operating pressure range and proof pressure vary depending on the fluid temperature. Refer to the chart on page 59 .

3: The response time is when the set value is 90% in relation to the step input. (The value will be 7 s for the temperature sensor output.)

4: When the temperature sensor is used, it will be 250 VAC.