04
20
40
0.5 to 4
l/min
2 to 16
l/min
5 to 40
l/min
Water
2 to16
l/min
0.1
l/min
l/min, gal (US)/min
l
, gal (US)
0 to 1MPa
1.5MPa
0 to 999999
l
0 to 50°C (with no condensation)
±5% F.S. or less
±3% F.S. or less
±5% F.S. or less (0 to 50°C)
Lights up when ON, OUT1: Green, OUT2: Red
1s or less
Hysteresis mode: Variable (can be set from 0), Window comparator mode: Fixed (3 digits)
Note 3)
12 to 24VDC (ripple ±10% or less)
70mA or less
1000VAC for 1 min. between external terminal block and case
50MΩ (500VDC) between external terminal block and case
1000Vp-p, Pulse width 1µs, Rise time 1ns
490m/s² in
X, Y, Z directions, 3 times each
520g (without lead wire)
Equivalent to IP65
3/8, 1/2
Model
Measured fluid
Detection type
Flow rate measurement and setting range
Minimum setting unit
Operating pressure range
Withstand pressure
Accumulated flow range
Operating temperature range
Linearity
Repeatability
Temperature characteristics
Indicator lights
Response time
Hysteresis
Power supply voltage
Current consumption
Withstand voltage
Insulation resistance
Noise resistance
Vibration resistance
Impact resistance
Weight
Enclosure
Port size (Rc, NPT, G)
27
67
Output specification
NPN open collector 2 outputs
PNP
open collector 2 outputs
Real-time flow rate
Accumulated flow
Switch output
10 to 500Hz at the smaller of amplitude 1.5mm or acceleration 98m/s²
in X, Y, Z directions, 2 hours each
Display units
Output
specifications
Specifications
Note 1) For the type with unit switching function [The type without the unit switching function will have a fixed SI unit (l/min or l).]
Note 2) The output functions operate only for the real-time flow rate display, and do not operate for the accumulated flow display.
Note 3) Window comparator mode — Since hysteresis is 3 digits, separate P1 and P2 by 7 digits or more. 1 digit is the minimum setting unit (refer to the table above).
PFW720
PFW704 PFW740
0.5 to 4 (setting is 0.6 to 4) l/min
0.05
l/min
5 to 40
l/min
0.5
l/min
460g (without lead wire)
700g (without lead wire)
3/8
1/2, 3/4
How to order
PFW7 20 03 27
Nil
N
Wiring specification
3m lead wire with connector
Without lead wire
Flow rate range
Symbol
03
04
06
Port size
3/8
1/2
3/4
4
16
40
Size Applicable model
Flow rate (l/min)
Nil
N
F
Thread type
Rc
NPT
G
PFW704, PFW720
PFW720, PFW740
PFW740
Integrated
display type
Nil
M
Unit specification
With unit switching function
Fixed SI unit
Note)
NPN open collector
PNP open collector
Maximum load current: 80mA, Internal voltage drop: 1V or less (with load current of 80mA)
Maximum applied voltage: 30V
Maximum load current: 80mA
Internal voltage drop: 1.5V or less (with load current of 80mA)
Note) Fixed units:
Real-time flow rate:
l/min
Accumulated flow:
l
Karman vortex
Note 1)
Note 2)
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