Datasheet

How to Order
27
04
20
40
0.5 to 4 l/min
2 to 16
l/min
5 to 40
l/min
27
67
Output specification
NPN open collector 2 outputs
PNP open collector 2 outputs
PF2W7 20 T 03 27
Flow rate range
Nil
N
F
Thread type
Rc
NPT
G
Nil
M
With unit switching function
Fixed SI unit
Note)
Unit specification
T
Temperature range
0 to 90°C
Symbol
03
04
06
Port size
3/8
1/2
3/4
4

16


40


Port
size
Applicable model
Flow rate (l/min)
PF2W704T, PF2W720T
PF2W720T, PF2W740T
PF2W740T
Nil
N
Lead wire (Refer to page 35.)
M12 3 m lead wire with connector
Without lead wire
Series PF2W
Digital Flow Switch/High Temperature Fluid Type
For Water
Refer to www.smcworld.com for details of
products compatible with overseas standards.
Integrated
Display Type
Specifications
PF2W704T PF2W720T PF2W740T
Maximum load current: 80 mA; Internal voltage drop: 1 V or less (with load current of 80 mA)
Maximum applied voltage: 30 V; 2 outputs
Maximum load current: 80 mA; Internal voltage drop: 1.5 V or less (with load current of 80 mA);
2 outputs
Output specifications
Note 5)
NPN or PNP open collector (same as switch output)
Illuminates when output is ON OUT1: Green; OUT2: Red
1 sec. or less
Hysteresis mode: Variable (can be set from 0); Window comparator mode
Note 6)
: 3-digit fixed
12 to 24 VDC (ripple ±10% or less)
IP65
Operating: 0 to 50°C, Stored: –25 to 85°C (with no freezing and condensation)
1000 VAC for 1 min. between external terminal and case
50M Ω and more (500 VDC Mega) between external terminal and case
10 to 500 Hz with a 1.5 mm amplitude or 98 m/s
2
acceleration in each X, Y, Z direction for 2 hrs, whichever is smaller.
490 m/s
2
in X, Y, Z directions 3 times each
1000 Vp-p, Pulse width 1 µs, Rise time 1 ns
Status LED’s
Response time
Hysteresis
Power supply voltage
3/8 1/2, 3/4
0.35 to 4.5
l/min
0.35 to 4.5
l/min
0.5 to 4
l/min
0.05
l/min
0.05
l/pulse
3.5 to 45 l/min
3.5 to 45
l/min
5 to 40
l/min
0.5
l/min
0.5
l/pulse
1.7 to 17.0
l/min
1.7 to 17.0
l/min
2 to 16
l/min
0.1
l/min
0.1
l/pulse
0 to 90°C (with no cavitation)
±5% F.S. or less
±3% F.S. or less
±5% F.S. or less (0 to 90°C, based on 25°C)
70 mA or less
710 g
3/8, 1/2
Karman vortex
3-digit, 7-segment LED
l/min, gal(US)/min
l, gal(US)
0 to 1 MPa
1.5 MPa
0 to 999999
l
Switch output
Accumulated pulse output
Model
Measured fluid
Flow rate measurement range
Set flow rate range
Rated flow range
Minimum set unit
Accumulated pulse flow rate exchange value (Pulse width: 50 ms)
Operating fluid temperature
Linearity
Repeatability
Temperature characteristics
Note 1)
Current consumption (No load)
Weight
Note 2)
Port size (Rc, NPT, G)
Detection type
Indicator light
Operating pressure range
Withstand pressure
Accumulated flow range
Note 4)
Real-time flow rate
Accumulated flow
Display units
Note 3)
Resistance
Enclosure
Operating temperature range
Withstand voltage
Insulation resistance
Vibration resistance
Impact resistance
Noise resistance
Water, Mixture of water (50%) and ethylene glycol (50%)
NPN open collector
PNP open collector
Note 1) ±5% F.S. or less (0 to 50°C, based on 25°C), ±3% F.S. or less (15 to 35°C, based on 25°C)
Note 2)
Without lead wire.
Note 3) For digital flow switch with unit switching function. (Fixed SI unit [l/min or l] will be set for switch type without the unit switching function.)
Note 4) Accumulated flow rate is reset when the power supply turns OFF.
Note 5)
Switch output and accumulated pulse output can be selected during initial setting.
Note 6) Window comparator mode — Since hysteresis will reach 3 digits, keep P_1 and P_2 or n_1 and n_2 apart by 7 digits or more.
(In case of output OUT2, n_1, 2 to be n_3, 4 and P_1, 2 to be P_3, 4.)
Note 7) The flow switch conforms to the CE mark.
Note) Fixed units:
Real-time flow rate:
l/min
Accumulated flow:
l