Digital Flow Switch
For Air
Note 1) For digital flow switch with unit switching function. (Fixed SI unit [(l/min, or l, m
3
or m
3
x 10
3
)] will be set for switch type without the unit switching function.)
Note 2) Flow rate display can be switched between the basic condition of 0°C, 101.3 kPa and the standard condition (ANR) of 20°C, 101.3 kPa, and 65% RH.
Note 3) Without lead wire.
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.
How to Order
Series
PF2A
PF2A7 10 01 27
Symbol
N
Lead wire (Refer to page 35.)
M12
3 m lead wire with connector
Without lead wire
10
50
11
21
51
Flow rate range
1 to 10 l/min
5 to 50 l/min
10 to 100 l/min
20 to 200 l/min
50 to 500 l/min
Symbol
01
02
03
04
Port size
1/8
1/4
3/8
1/2
10
쎲
쎲
50
쎲
쎲
100
쎲
200
쎲
500
쎲
Port
size
Applicable model
Flow rate (l/min)
Symbol
27
67
Output specification
Output specification
NPN open collector 2 outputs
PNP open collector 2 outputs
Nil
M
With unit switching function
Fixed SI unit
Note)
Nil
N
F
Thread type
Unit specification
Rc
NPT
G
PF2A710/750
PF2A711/721
PF2A751
Integrated
Display Type
M
1
Refer to www.smcworld.com for details of
products compatible with overseas standards.
Note) Fixed units:
Real-time flow rate: l/min
Accumulated flow: l
Specifications
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
Current consumption (No load)
Weight
Note 3)
Port size (Rc, NPT, G)
Detection type
Indicator light
Operating pressure range
Proof pressure
Accumulated flow range
Note 4)
Status LED’s
Response time
Hysteresis
Power supply voltage
Real-time flow rate
Accumulated flow
Resistance
Output
specifications
Enclosure
Operating temperature range
Withstand voltage
Insulation resistance
Vibration resistance
Impact resistance
Noise resistance
0.5 to 10.5 l/min
0.5 to 10.5 l/min
1 to 10 l/min
0.1 l/min
0.1 l/pulse
2.5 to 52.5 l/min
2.5 to 52.5 l/min
5 to 50 l/min
0.5 l/min
0.5 l/pulse
5 to 105 l/min
5 to 105 l/min
10 to 100 l/min
1 l/min
1 l/pulse
10 to 210 l/min
10 to 210 l/min
20 to 200 l/min
2 l/min
2 l/pulse
25 to 525 l/min
25 to 525 l/min
50 to 500 l/min
5 l/min
5 l/pulse
PF2A710 PF2A750 PF2A711 PF2A721 PF2A751
Air, Nitrogen
l/min, CFM x 10
-
2
l/min, CFM x 10
-
1
±1% F.S. or less ±2% F.S. or less
290 g
150 mA or less
250 g
1/8, 1/4
160 mA or less
3/8
170 mA or less
1/2
l, ft
3
x 10
-
1
0 to 50°C
±5% F.S. or less
Heater type
3-digit, 7-segment LED
1.0 MPa
0 to 999999
l
–50 kPa to 0.75 MPa
±3% F.S. or less (15 to 35°C, based on 25°C), ±5% F.S. or less (0 to 50°C, based on 25°C)
–50 kPa to 0.5 MPa
NPN or PNP open collector (same as switch output)
Illuminates up 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 or 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. (de-energized)
490 m/s
2
in X, Y, Z directions 3 times each
1000 Vp-p, Pulse width 1 µs, Rise time 1 ns
Display units
Note 1, 2)
Note 5)
Switch output
Accumulated pulse output
NPN open collector
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
PNP open collector
Maximum load current: 80 mA
Internal voltage drop: 1.5 V or less (with load current of 80 mA); 2 outputs
