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Specifi cations
Model
Applicable fl uid
Fluid
Fluid temperature range
Detection method
Rated fl ow range
Instantaneous fl ow
Set point
range
Accumulated fl ow
Flow
Instantaneous fl ow
Smallest settable
increment
Accumulated fl ow
Accumulated volume per pulse
(Pulse width = 50 ms)
Accumulated value hold function ∗
Rated pressure range
Proof pressure
Pressure
Pressure loss
Pressure characteristics ∗
Power supply voltage
Electrical
Current consumption
Protection
Display accuracy
Analogue output accuracy
Accuracy
Repeatability
Temperature characteristics
Output type
Output mode
Switch operation
Max. load current
Switch output
Max. applied voltage (NPN only)
Internal voltage drop
(Residual voltage)
Response time ∗
Hysteresis ∗
4
Protection
Output type
Voltage output
Analogue output
Impedance
∗
5
Current output
Response time ∗
External input
External input ∗
7
Input mode
Reference condition ∗
Instantaneous fl ow
Unit ∗
9
Accumulated fl ow
Display
Instantaneous fl ow
range
Accumulated fl ow ∗
Display
Instantaneous fl ow
Minimum
display unit
Accumulated fl ow
Display
Indicator LED
Enclosure
Withstand voltage
Environmental
Insulation resistance
resistance
Operating temperature range
Operating humidity range
Standards
Piping specifi cation
Materials of parts in contact with fl uid
Piping
specifi cation
Weight
Lead wire
Bracket
∗1 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 times. If the product is operated 24 hours per day, the product life will be as follows:
5 min interval: life is calculated as 5 min x 1 million = 5 million min = 9.5 years
•
2 min interval: life is calculated as 2 min x 1 million = 2 million min = 3.8 years
•
If the accumulated value external reset is repeatedly used, the product life
will be shorter than the calculated life.
∗2 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.
∗3 The time from when the flow is changed by a step input (when the flow rate
changes from 0 to the maximum value of the rated fl ow range instantaneously) until
the switch output turns ON (or OFF) when set to be 90 % of the rated fl ow rate
∗4 If the fl ow fl uctuates around the set value, be sure to keep a suffi cient margin.
3-Colour Display
PFMC7501
(Air quality grade is JIS B 8392-1 1.1.2 to 1.6.2, ISO 8573-1 1.1.2 to 1.6.2.)
l/
5 to 500
min
l/
5 to 525
min
1 L/pulse
1
2
Select from Hysteresis, Window comparator, Accumulated output, or Accumulated pulse output modes.
3
6
Input voltage: 0.4 V or less (Reed or Solid state) for 30 ms or longer
8
l/
–25 to 525
min
(Displays [0] when value is within the
l/
–4 to 4
min range)
10
LCD, 2-screen display (Main screen/Sub screen)
Main screen: Red/Green, Sub screen: White
Main screen: 4 digits, 7 segments, Sub screen: 6 digits, 11 segments
2 MΩ or more (50 VDC measured via megohmmeter) between terminals and housing
Operating: 0 to 50 °C, Stored: –10 to 60 °C (No condensation or freezing)
Rc thread
NPT thread
G thread
Digital Flow Switch
For fl ow switch precautions and specifi c product precautions,
refer to the "Operation Manual" on the SMC website.
PFMC7102
Dry air, N
2
0 to 50 °C
Thermal type
l/
10 to 1000
l/
10 to 1050
0 to 999,999,990 L
l/
1
min
10 L
Intervals of 2 or 5 minutes can be selected.
0 to 0.8 MPa
1.2 MPa
Refer to the "Pressure Loss" graph.
±5 % F.S. (0 to 0.8 MPa, 0.6 MPa standard)
12 to 24 VDC ±10 %
Ripple (p-p) 10 % or less
55 mA or less
Polarity protection
±3 % F.S.
±3 % F.S.
±1 % F.S. (±2 % F.S. when the response time is set to 0.05 s)
±5 % F.S. (0 to 50 °C, 25 °C standard)
NPN open collector
PNP open collector
Select from Normal or Reversed output.
80 mA
28 VDC
NPN output type: 1 V or less (at load current of 80 mA)
PNP output type: 1.5 V or less (at load current of 80 mA)
Select from 0.05 s, 0.1 s, 0.5 s, 1 s, or 2 s.
Variable from 0
Short circuit protection
Voltage output: 1 to 5 V, Current output: 4 to 20 mA
Output impedance: Approx. 1 kΩ
Maximum load impedance at power supply voltage of 24 V: 600 Ω,
at power supply voltage of 12 V: 300 Ω
Minimum load impedance: 50 Ω
Linked to the response time of the switch output
Accumulated value external reset, Peak/Bottom value reset
Select from Standard conditions or Normal conditions.
l/
3
min, cfm (ft
/min)
3
L, ft
l/
–50 to 1050
(Displays [0] when value is within the
l/
–9 to 9
min range)
0 to 999,999,999 L
l/
1
min
10 L
LED ON when switch output is ON (OUT1/OUT2: Orange)
IP65
250 VAC for 1 min between terminals and housing
Operating/Stored: 35 to 85 % RH (No condensation or freezing)
CE marking (EMC Directive, RoHS Directive), UL (CSA)
Rc1/2, NPT1/2, G1/2
Stainless steel 304, PPS, Aluminum alloy, HNBR, Si, Au, GE4F
160 g
170 g
+80 g
+25 g
Otherwise, chattering will occur.
∗5 Setting is only possible for models with analogue output.
∗6 The time from when the fl ow is changed by a step input (when the fl ow rate
changes from 0 to the maximum value of the rated fl ow range instantane-
ously) until the analogue output reaches 90 % of the rated fl ow rate
∗7 Setting is only possible for models with external input.
∗8 The fl ow rate given in the specifi cations is the value under standard conditions.
∗9 Setting is only possible for models with the units selection function.
∗10 The accumulated fl ow display is the upper 3-digit and lower 6-digit (total of
9 digits) display. The position of the dots on the upper part of the screen
indicates which digits are displayed.
∗ Products with tiny scratches, marks, or display colour or brightness variations which
do not affect the performance of the product are verifi ed as conforming products.
PFMC7
PFMC7202
min
20 to 2000
min
20 to 2100
10 L/pulse
min
–100 to 2100
(Displays [0] when value is within the
l/
–19 to 19
min range)
Rc3/4, NPT3/4, G3/4
240 g
245 g
+30 g
Series
l/
min
l/
min
l/
min
10
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