Flow Monitor
Operation Manual
PF2A3
/PF2W3
/PF2D3
Installation
•Never mount the product in a location that will be used as a foothold.
Thank you for purchasing an SMC PF2A3
/PF2W3
/PF2D3
Series Flow
Monitor.
Please read this manual carefully before operating the product and make sure you
understand its capabilities and limitations.
Please keep this manual handy for future reference.
To obtain more detailed information about operating this product, please
refer to the SMC website (URL http://www.smcworld.com) or contact SMC
directly.
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or
equipment damage.
These instructions indicate the level of potential hazard with the labels of
"Caution", "Warning" or "Danger". They are all important notes for safety and must
be followed in addition to International standards (ISO/IEC) and other safety
regulations.
CAUTION indicates a hazard with a low level of risk
which, if not avoided, could result in minor or
moderate injury.
Operator
This operation manual is intended for those who have knowledge of machinery
using pneumatic equipment, and have sufficient knowledge of assembly,
operation and maintenance of such equipment. Only those persons are
allowed to perform assembly, operation and maintenance.
Read and understand this operation manual carefully before assembling,
operating or providing maintenance to the product.
Caution:
Warning:
Danger:
WARNING indicates a hazard with a medium level of
risk which, if not avoided, could result in death or
serious injury.
DANGER indicates a hazard with a high level of risk
which, if not avoided, will result in death or serious
injury.
Safety Instructions
Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
Do not operate in an atmosphere containing flammable, explosive or corrosive gas.
Fire or an explosion can result.
This product is not designed to be explosion proof.
Do not touch the piping or its connected parts when the fluid is at high temperature.
It may lead to burnt.
Ensure the piping cools sufficiently before touching.
Do not use the product in a place where static electricity is a problem.
Otherwise it can cause failure or malfunction of the system.
If using the product in an interlocking circuit:
•Provide a double interlocking system, for example a mechanical system
•Check the product regularly for proper operation
Otherwise malfunction can result, causing an accident.
The following instructions must be followed during maintenance:
•Turn off the power supply
•Ensure the flow is shut off before performing maintenance
Otherwise an injury can result.
After maintenance is complete, perform appropriate functional inspections and leak tests.
Stop operation if the equipment does not function properly or there is a leakage of fluid.
When leakage occurs from parts other than the piping, the product might be faulty.
Disconnect the power supply and stop the fluid supply.
Do not apply fluid under leaking conditions.
Safety cannot be assured in the case of unexpected malfunction.
Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction or damage to the product can result.
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
Warning
Caution
Maintenance
How to reset the product after a power cut or forcible de-energizing
The setting of the product will be retained as it was before a power cut or
de-energizing.
The output condition is also basically recovered to that before a power cut or
de-energizing, but may change depending on the operating environment.
Therefore, check the safety of the whole installation before operating the product.
Summary of Product parts
Mounting and Installation
Indicator LED (OUT1)
button (UP)
LED display
Panel mount adapter
button (SET)
Indicator LED (OUT2)
button (DOWN)
Indicator LED
Item
Installing
Removing the panel mount adapter
•Remove the panel mount adapter from the product if it has been delivered
assembled.
•Remove the mounting bracket using a flat blade screwdriver.
Hook
•Lever the hook to the outside to remove the adapter (See below).
•If the panel mount adapter is pulled with the hook engaged, the product or
the panel mount adapter will be damaged.
Front
Description
Terminal block
Terminals to connect the power, output and sensor wires.
For details, refer to Wiring.
Terminal block
Item
Back
Description
LED display
Displays the flow value, setting mode, and error indication.
Indicator LED
Indicates the reference condition selected. LED is ON (Red) when normal condition is
selected. (Only the PF2A3
)
Panel mount adapter
Adapter to mount the product to the panel.
Indicator LED (OUT1)
Indicates the output status of OUT1. LED is ON (Green) when OUT1 is ON.
The LED flashes when an over current error occurs.
When the accumulated pulse output mode is selected, the indicator LED will turn OFF.
Indicator LED (OUT2)
Indicates the output status of OUT2. LED is ON (Red) when OUT2 is ON.
The LED flashes when an over current error occurs.
When the accumulated pulse output mode is selected, the indicator LED will turn OFF.
button (UP)
Selects the mode or increases the ON/OFF Set value.
button (SET)
Press this button to change to another mode and to set a value.
button (DOWN)
Selects the mode or decreases the ON/OFF Set value.
+
PF2A30 series
PF2A550
PF2A510
PF2W511
PF2D520
PF2D540
PF2D504
Connected sensor
Di
sp
la
y
in
st
an
ta
ne
ou
s
flo
w
→
←
D
isp
lay
ac
cu
mu
lat
ed
flo
w
2 sec.
2 sec. or longer
Display mode
Display
accumulated flow
Display
instantaneous flow
3 sec. or longer
3 sec. or longer
Input the Set value of
instantaneous output
(Auto-preset)
Input the Set value of
accumulated output
Input the Set value of
instantaneous output
Input of the Set point 1
(OUT1)
Input of the Set point 2
(OUT1)
Input of the Set point 3
(OUT2)
Measurement of the
Set value (OUT1)
Input of the Set value for the
lower 3 digits (OUT1)
Input of the Set value for the
upper 3 digits (OUT1)
Input of the Set value for the
lower 3 digits (OUT2)
Input of the Set value for the
upper 3 digits (OUT2)
Function selection mode
Measurement of the
Set value (OUT2)
Flow
Set value is calculated and set.
Flow
Set value is calculated and set.
Display instantaneous flow
→
←
Display accumulated flow
Display accumulated flow
Accumulated value is reset
Display instantaneous flow
Display upper 3 digits
Accumulated
output mode
Accumulated pulse
output mode
Instantaneous
output mode
Output mode (OUT1)
Accumulated
output mode
Accumulated pulse
output mode
Instantaneous
output mode
Output mode (OUT2)
Unit selection function
∗
1
L/min,L
Non-Reverse
output
Reverse
output
Switch operation (OUT2)
Non-Reverse
output
Reverse
output
Normal
condition
Standard
condition
標準状態
Reference condition
∗
2
CFM x 10
-2
,
CFM x 10
-1
, ft
3
x 10
-1
,
gal(US)/min, gal(US)
Indicator LED
Switch operation (OUT1)
Measurement mode (Instantaneous flow)
∗
: Start the setting here to supply power under the default settings.
Measurement mode (Accumulated flow)
Accumulation stop
Accumulation starts
Press
and
PF2A511
PF2A521
PF2A551
PF2A31 series
PF2W520
PF2W540
PF2W504
PF2W30 series
PF2W33 series
PF2D30 series
2 sec.
∗
4
Set value
or
∗
3
∗
4
Set value
or
∗
3
∗
4
∗
4
∗
4
Set value
Set value
Set value
or
∗
3
∗
4
Set value
or
∗
3
∗
4
Set value
or
∗
3
∗
4
Set value
or
∗
3
∗
4
Set value
or
∗
3
∗
4
Set value
or
∗
3
Unlock
Lock
Unlock
Lock
Key-lock function
Initialize mode
Key-lock function
∗
1: Operate only the product with unit selction function (Model indication: without M).
∗
2: Operate only the PF2A3 series.
∗
3: Depend on the setting of switch operation in initialize mode.
∗
4: Displayed in turn.
Input of the Set point 4
(OUT2)
∗
: Accumulation starts and “-” flashes.
List of outputs
Find the diagram of the output required in the table below. Perform settings
following the Set value column on the right. Characters in ( ) are for OUT2.
Setting flow chart
Flow has exceeded the upper
limit of the display flow range.
Reduce the flow.
Error type
Troubleshooting method
Error indication
The switch output load current
is more than 80 mA (OUT1).
Turn the power off and remove the
cause of the over current.
Then turn the power on again.
The switch output load current
is more than 80 mA (OUT2).
The display flow range of
accumulated flow has been
exceeded.
To reset, press
and
buttons
simultaneously for 2 seconds or longer.
Then set all data again.
The set data has been changed
unexpectedly.
To reset the accumulated flow value,
press
and
buttons simultaneously
for 2 seconds or longer.
Key-lock function
This function is used to prevent errors occurring due to unintentional changes of
the set values.
Excessive
instantaneous flow
Error name
OUT1
over current error
OUT2
over current error
Excessive
accumulated flow
System error
Initialize mode
Default settings
The default settings are as follows.
If this condition is acceptable, then keep these settings.
[F_1] Input the Set value of
instantaneous output
[n_1] Input of the Set point 1 (OUT1)
Function selection mode
Item
∗
Default settings
The default settings are as follows.
If this condition is acceptable, then keep these settings.
[n_2] Input of the Set point 2 (OUT1)
[n_3] Input of the Set point 3 (OUT2)
[n_4] Input of the Set point 4 (OUT2)
[F_2] Input the Set value of
instantaneous output
(Auto-preset)
-
[F_3] Input the Set value of
accumulated output
[1nL] Input of the Set value for the lower 3 digits (OUT1)
[1nH] Input of the Set value for the upper 3 digits (OUT1)
∗
: When Non-Reverse output is selected as the switching operation, n becomes P.
In measurement mode, press the
button, to display [F_ ].
This [F_ ] indicates the mode for changing each functional setting.
∗
: When OUT1 or OUT2 is assigned to be instantaneous output mode during initialize mode, [F_1] and [F_2] are
displayed.
When OUT1 or OUT2 is assigned to be accumulated output mode, [F_3] is displayed.
50% of max. rated flow
Default setting
50% of max. rated flow
50% of max. rated flow
50% of max. rated flow
-
[ 0]
[ 0]
[2nL] Input of the Set value for the lower 3 digits (OUT2)
[2nH] Input of the Set value for the upper 3 digits (OUT2)
[ 0]
[ 0]
Items below can be set.
•Connected sensor •Display mode •Unit selection function
∗
•Output mode (OUT1)
•Output mode (OUT2) •Switch operation (OUT1)
•Switch operation (OUT2)
•Reference condition
Troubleshooting
Mounting with the panel mount adapter
•Install the product as shown below.
•Insert panel mount adapter B into section A of panel mount adapter A.
Push panel mount adapter B from behind until the display is fixed onto the panel.
The pin of panel mount adapter B engages the notched part of panel adapter
section A to fix the display.
Panel mount adapter A
A
Panel
Panel mount adapter B
Press
Insert
Mounting bracket
Wiring
•Connections should only be made with the power supply turned off.
•Use separate routes for the product wiring and any power or high voltage
wiring. Otherwise, malfunction may result due to noise.
•Ensure that the FG terminal is connected to ground when using a commercially
available switch-mode power supply. When a switch-mode power supply is
connected to the product, switching noise will be superimposed and the
product specification can no longer be met. This can be prevented by inserting
a noise filter, such as a line noise filter and ferrite core, between the switch-
mode power supply and the product, or by using a series power supply instead
of a switch-mode power supply.
Connecting the wiring
•Use suitable crimp terminals for connection to the terminal block.
•Attention should be paid to the terminals to avoid short circuits.
1 2 3 4
5 6 7 8
Terminal block number
3
5
2
1
4
DC(-) (for sensor)
Sensor input
N.C.
DC(-) (supply voltage)
DC(+) (for sensor)
6
8
7
DC(+) (supply voltage)
OUT1
OUT2
Power is supplied
Outline of setting
The output will not operate for 3 seconds after supplying power.
The identification code of the product is displayed.
Measurement mode
The mode in which the flow is detected and displayed,
and the switch function is operating.
This is the basic operating mode;
and other modes should be selected for setting
changes and other function settings.
Initialize mode
Function
selection mode
Key-lock function
button
press for
2 sec.
button
press.
button
press for
3 sec.
In
s
ta
n
ta
n
e
o
u
s
f
lo
w
Switch output diagram
Output mode
Switch operation
Set value
Instantaneous
output mode
(
)
Non-Reverse
output
(
)
Set point 2 Set point 1
(
)
Hysteresis mode
∗
2
Set point 1 Set point 2
(
)
Window comparator mode
Set point 1
Set point 2
(
)
Window comparator mode
Reverse output
(
)
OFF
ON
Hysteresis
P_2
(P_4)
P_1
(P_3)
Instantaneous
flow
OFF
ON
Hysteresis
∗
1
Hysteresis
∗
1
P_1
(P_3)
P_2
(P_4)
Instantaneous
flow
OFF
ON
Hysteresis
n_2
(n_4)
n_1
(n_3)
Instantaneous
flow
OFF
ON
Hysteresis
∗
1
Hysteresis
∗
1
n_1
(n_3)
n_2
(n_4)
Instantaneous
flow
Set point 2 Set point 1
(
)
Hysteresis mode
∗
2
A
c
c
u
m
u
la
te
d
f
lo
w
Accumulated
output mode
(
)
Non-Reverse
output
(
)
Upper 3 digits
Lower 3 digits
+
(
+
)
Upper 3 digits
Lower 3 digits
+
(
+
)
Reverse output
(
)
OFF
ON
Time
Time
Accumlated flow
1PH+1PL
(2PH+2PL)
OFF
ON
Time
Time
Accumlated flow
1nH+1nL
(2nH+2nL)
A
c
c
u
m
u
la
te
d
p
u
ls
e
Accumulated
pulse output
mode
(
)
No Set value input
No Set value input
Reverse output
(
)
OFF
ON
Time
50 ms
OFF
ON
Time
50 ms
Error display
Accumulated
flow displayed
(flashing)
∗
: If the error cannot be reset after the above measures are taken, then please contact SMC.
Specification / Outline with Dimensions
Refer to the product catalogue or SMC website (URL http://www.smcworld.com) for
more information about product specifications and outline dimensions in detail.
Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
© 2011 SMC Corporation All Rights Reserved
Akihabara UDX 15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: +81 3-5207-8249 Fax: +81 3-5298-5362
URL http://www.smcworld.com
Non-Reverse
output
(
)
Refer to the SMC website (URL http://www.smcworld.com) for more information
about troubleshooting.
∗
1: In window comparator mode, the hysteresis is fixed at 3 digits. When setting, allow 7 digits or more between
Set point 1 and Set point 2 (Set point 3 and Set point 4).
∗
2: When Set point 1 = Set point 2 (Set point 3 = Set point 4), chattering may occur.
Selection of display mode
[d_1] Display instantaneous flow
Item
Default settings
Unit selection function
∗
[U_1] L/min
Selection of output mode (OUT1)
[o10] Instantaneous output mode
Selection of output mode (OUT2)
[o20] Instantaneous output mode
Selection of switch operation (OUT1)
[1_n] Reverse output
Selection of switch operation (OUT2)
[2_n] Reverse output
Selection of reference condition
[Anr] Standard condition
Selection of the connected sensor
[10L] 1 to 10 L/min type (PF2A510)
[04L] 0.5 to 4 L/min type (PF2W504)
[04d] 0.4 to 4 L/min type (PF2D504)
Common
Model
Common
Common
Common
Common
Common
PF2A3
series only
PF2A30
series
PF2W30
series
[11L] 10 to 100 L/min type (PF2A511)
[11L] 10 to 100 L/min type (PF2W511)
PF2A31
series
PF2W33
series
PF2D3
series
Refer to the product catalogue or SMC website (URL http://www.smcworld.com)
for more detailed information about panel cut-out dimensions.
∗
: Operate only the product with unit selection function.
