Datasheet

1 L/pulse
Specifications
Applicable fluid
Note 1)
Fluid temperature range
Detection method
Rated flow range
Set flow rate
range
Minimum setting unit
Accumulated volume per pulse (Pulse width = 50 msec.)
Accumulated value hold function
Note 2)
Rated pressure range
Proof pressure
Pressure loss
Pressure characteristics
Note 3)
Power supply voltage
Current consumption
Protection
Display accuracy
Analogue output accuracy
Repeatability
Temperature characteristics
Output type
Output mode
Switch operation
Maximum load current
Maximum applied voltage (NPN only)
Internal voltage drop (Residual voltage)
Response time
Note 4)
Hysteresis
Note 5)
Protection
Output type
Impedance
Response time
Note 7)
External input
Input mode
Reference condition
Note 9)
Display mode
Unit
Note 10)
Displayable
range
Minimum display
unit
Display
Indicator LED
Enclosure
Withstand voltage
Insulation resistance
Operating temperature range
Operating humidity range
Piping specifications
Piping entry direction
Body
Flow adjustment valve
Lead wire
Bracket
Panel mount adapter
DIN rail mounting bracket
Instantaneous flow
Accumulated flow
Instantaneous flow
Accumulated flow
Model
Fluid
Pressure
Accuracy
Switch
output
Electrical
Flow
Instantaneous flow
Accumulated flow
Instantaneous flow
Accumulated flow
Instantaneous flow
Accumulated flow
Voltage output
Current output
Standard
Main materials of parts in contact
with fluid
Note 12)
Analogue
output
Note 6)
Display
Environmental
Weight
Piping
External
input
Note 8)
2 to 200 L/min
2 to 210 L/min
0 to 999,999,999 L
1 L
0 to 0.75 MPa
1.0 MPa
±5%F.S. (0 to 0.75 MPa, 0.35 MPa reference)
L or ft
3
can be selected.
−10 to 210 L/min
(Displays [0] when the value is within the −1 to 1 L/min range.)
1 L
Display method: LED Display colour: Red/Green Display: 3 digit 7 segment
LED ON when switch output is ON. (OUT1: Green, OUT2: Red)
CE, UL (CSA), RoHS
Rc1/4, NPT1/4, G1/4, ø8 One-touch fitting
Straight, Bottom
FKM, Stainless steel 304, PPS, PBT,
Brass (Electroless nickel plating), HNBR, Si, Au, GE4F
+45 g
+20 g
+15 g
+65 g
PFMB7201 PFMB7501 PFMB7102
10 L/pulse
Air, N
2 (Air quality grade is JIS B 8392-1 1.1.2 to 1.6.2, ISO8573-1 1.1.2 to 1.6.2.)
−25 to 525 L/min
(Displays [0] when the value is within the −4 to 4 L/min range.)
0 to 999,999,990 L
10 L
0 to 0.8 MPa
1.2 MPa
±5% F.S. (0 to 0.8 MPa, 0.6 MPa reference)
L or ft
3
can be selected.
10 L
Display method: LCD Display colour: Red/Green Display: 4 digit 7 segment
LED ON when switch output is ON. (OUT1/OUT2: Orange)
CE, RoHS
Rc1/2, NPT1/2, G1/2
ADC, PPS, Stainless steel 304, Au
HNBR, Si, GE4F
—
+25 g
—
—
0 to 50°C
Thermal type
5 to 500 L/min
5 to 525 L/min
1 L/min
Interval of 2 or 5 minutes can be selected.
Refer to “Pressure Loss” graph.
12 to 24 VDC ±10%
55 mA or less
Polarity protection
±3%F.S.
±3%F.S.
±1%F.S. (±2%F.S. when response time is set to 0.05 seconds.)
±5%F.S. (0 to 50°C, 25°C
reference)
NPN open collector PNP open collector
Select from Hysteresis, Window comparator, Accumulated output or Accumulated pulse output modes.
Select from Normal or Reversed output.
80 mA
28 VDC
NPN output type: 1 V or less (at load current 80 mA) PNP output type: 2 V or less (at load current 80 mA)
Select from 0.05 sec., 0.1 sec., 0.5 sec., 1 sec., or 2 sec.
Variable from 0
Short circuit protection
Voltage output: 1 to 5 V, Current output: 4 to 20 mA
Output impedance: Approx. 1 kΩ
Max. load impedance at power supply voltage 24 V: 600 Ω, at power supply voltage 12 V: 300 Ω
Linked with the response time of the switch output.
Input voltage: 0.4 V or less (reed or solid state) for 30 msec. or longer
Select from Accumulated flow external reset or Peak/Bottom reset.
Select from Standard condition or Normal condition.
Select from Instantaneous flow or Accumulated flow.
L/min or cfm can be selected.
0 to 999,999,999 L
1 L/min
IP40
1000 VAC for 1 minute between terminals and housing
50 MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
Operation: 0 to 50°C, Storage: −10 to 60°C (No condensation or freezing)
Operation, Storage: 35 to 85%RH (No condensation or freezing)
+35 g
−50 to 1050 L/min
(Displays [0] when the value is within the −9 to 9 L/min range.)
100 g
10 to 1000 L/min
10 to 1050 L/min
Rc1/4, NPT1/4/Straight: 70 g Bottom: 85 g
G1/4 /Straight: 115 g Bottom: 130 g
ø8 One-touch fitting/Straight: 50 g Bottom: 65 g
Note 1) Refer to “Example of Recommended Pneumatic Circuit” on Features 2.
Note 2) When using the accumulated value hold function, use the operating
conditions to calculate the product life, and do not exceed it. The
maximum access limit of the memory device is 1 million cycles. If the
product is operated 24 hours per day, the product life will be as follows:
s
5 min interval: life is calculated as 5 min x 1 million = 5 million min = 9.5 years
s
2 min interval: life is calculated as 2 min x 1 million = 2 million min = 3.8 years
If the accumulated flow external reset is repeatedly used, the product
life will be shorter than calculated life.
Note 3) Do not release the OUT side piping port of the product directly to the
atmosphere without connecting piping. If the product is used with the
piping port released to atmosphere, accuracy may vary.
Note 4) The time from when the flow is changed by a step input (when the flow
rate changes from 0 to the maximum flow instantaneously) until the
switch output turns ON (or OFF) when set at 90% of the rated flow rate.
Note 5) If the flow fluctuates around the set value, the width for setting more
than the fluctuating width needs to be set. Otherwise, chattering will
occur.
Note 6) When using a product with an analogue output
Note 7) The time from when the flow is changed as a step input (when the flow
rate changes from 0 to the maximum flow instantaneously) until the
analogue output reaches 90% of the rated flow rate.
Note 8) When using a product with an external input
Note 9) The flow rate given in the specification is the value at standard condition.
To convert the units from standard condition to normal condition, use
the following conversion calculation:
Flow rate at standard condition x 0.927 = Flow rate at normal condition
Note 10) Setting is only possible for models with the unit selection function.
Note 11) Refer to “Straight Piping Length and Accuracy” on page 4 for details.
Note 12) Refer to “Construction/Fluid Contact Parts” on page 5 for details.
Refer to “Handling Precautions for SMC Products” for Flow Switch Precautions
and the Operation Manual in our website for Specific Product Precautions.
Note 11)
Series PFMB7
3