Datasheet
Output
Fluid
temperature
C
D
B
A
100C0C–10C 110C
0
Output
Minimum
flow
Maximum
flow
Flow rate
A
C
B
Specifications
Note 1)
Cleared by turning off the power supply. It is possible to select the function to memorize it. (Every 2 or 5 minutes) When 5 minutes memorizing is selected, the
lifetime of the memory element (electronic part) is 1 million times (5 minutes x 1 million times = 5 million minutes = Approx. 9.5 years for 24 hour energizing).
Calculate the lifetime based on your operating conditions before using the memorizing function, and do not exceed it.
Note 2) The response time when the set value is 90% in relation to the step input. (The response time is 7 s when it is output by the temperature sensor.)
Note 3)
The response time until the set value reaches 90% in relation to the step input. (The response time is 7 s when it is analog output by the temperature sensor.)
Model
PF3W30<
Display flow range
Set flow range
Minimum setting unit
Conversion of accumulated pulse
Display unit
Accuracy
Repeatability
Temperature characteristics
Accumulated flow range
Note 1)
Switch output
Analog output
Hysteresis
External input
Input/output
Display method
Indicator light
Power supply voltage
Current consumption
Connection
Environment
Standards and regulations
Weight
Maximum load current
Maximum applied voltage
Internal voltage drop
Response time
Note
2)
Output protection
Output
mode
Response time
Note
3)
Voltage output
Current output
Enclosure
Operating temperature range
Operating humidity range
Withstand voltage
Insulation resistance
Without power supply/output connection lead wire
With power supply/output connection lead wire
1 L/min
1 L/pulse
0.1 L/min
Instantaneous flow rate: L/min, Accumulated flow: L
Display value: ±0.5% F.S. Analog output: ±0.5% F.S.
±0.5% F.S.
±0.5% F.S. (25C reference)
NPN or PNP open collector output
80 mA
28 VDC
NPN: 1 V or less (at 80 mA load current) PNP: 1.5 V or less (at 80 mA load current)
1 s/2 s
Short circuit protection
Select from hysteresis mode, window comparator mode, accumulated output mode, or accumulated pulse output mode.
1 s/2 s (linked with the switch output)
Voltage output: 1 to 5 V Output impedance: 1 k
Output current: 4 to 20 mA Max. load impedance: 300 for 12 VDC, 600 for 24 VDC
Variable
Voltage free input: 0.4 V or less (Reed or Solid state), input for 30 ms or longer
Input for copy mode
2-screen display (Main screen: 4-digit, 7-segment, 2-color, Red/Green Sub screen: 6-digit, 11-segment, White), Display values updated 5 times per second
Output 1, Output 2: Orange
12 to 24 VDC 10%
50 mA or less
Power supply output 5P connector, sensor connection 4P connector (e-con)
IP40 (Only front face of the panel is IP65 when panel mount adapter and waterproof seal of optional parts are used.)
0 to 50C (with no freezing and condensation)
Operation, Storage: 35 to 85% R.H. (with no condensation)
1000 VAC for 1 minute between
terminals and housing
50 M or more (500 VDC measured via megohmmeter) between terminals and housing
CE marking, UL (CSA), RoHS
50 g
100 g
1.7 to 18.0 L/min
0.1 L/pulse
3.5 to 45.0 L/min
0.5 L/pulse
7 to 112 L/min
0.35 to 4.50 L/min
0.01 L/min
0.05 L/pulse
By 0.5 LBy 0.1 L
99999999.9 L
999999999 L
By 1 L
Flow rate
Temperature
Select from hysteresis mode or window comparator mode.
Temperature Sensor Specifications
Note 1) The rated temperature range is for the temperature sensor alone.
The fluid temperature range specification of the flow switch as a
whole is 0 to 90C.
Note 2) The response time is for the temperature sensor alone.
The OUT2 can be selected from the output for temperature or flow rate by
button operation.
Rated temperature range
Setting/Display temperature range
Minimum setting unit
Display unit
Analog output accuracy
Response time
Ambient temperature characteristics
0 to 100C
Note 1)
–10 to 110C
1C
C
3% F.S.
7 s
Note 2)
5% F.S.
The output related to the temperature sensor is OUT2 only.
Analog Output
Flow rate/Analog output
Fluid temperature/Analog output
Voltage output
Current output
0.6 V
2.4 mA
A
1 V
4 mA
B
Voltage output
Current output
1 V
4 mA
A
1.5 V
6 mA
1.4 V
5.6 mA
B
1.5 V
5.9 mA
04/20/40
11 21
5 V
20 mA
C
PF3W504
PF3W520
PF3W540
PF3W511
PF3W521
0.5
2
5
10
30
Minimum
Model
Flow rate [L/min]
4
16
40
100
250
Maximum
5 V
20 mA
C
5.4 V
21.6 mA
D
OUT1 Switch output
Analog output
OUT2 Switch output
Analog output
Main circuit
Remote monitor unit
Brown DC (+)
Black OUT1
White OUT2
Blue DC (–)
DC (+) Brown
Flow rate
1 to 5 V Black
Temperature
1 to 5 V White
DC (–) Blue
Remote
sensor
unit
The values of B vary according to the range.
Be sure to use in combination
with remote sensor unit with
temperature sensor.
0.35 to 4.50 L/min
(Flow under 0.35 L/min is displayed as “0.00”)
1.7 to 18.0 L/min
(Flow under 1.7 L/min is displayed as “0.0”)
3.5 to 45.0 L/min
(Flow under 3.5 L/min is displayed as “0.0”)
7 to 112 L/min
(Flow under 7 L/min is displayed as “0”)
20 to 280 L/min
(Flow under 20 L/min is displayed as “0”)
2 L/min
2 L/pulse
20 to 280 L/min
Refer to “Handling Precautions for SMC Products” for Flow Switch Precautions and
the Operation Manual in our website for Specific Product Precautions.
Voltage output
Current output
Series PF3W3
19