SMC Networks PF3A703H-L User manual

No.PF※※-OMX0002
PRODUCT NAME
Digital Flow Switch
( compatible)
MODEL/ Series/ Product Number
PF3A703H-L
PF3A706H-L
PF3A712H-L

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No.PF※※-OMX0002
Table of Contents
Safety Instructions 3
Model Indication and How to Order 11
Names and Functions of Individual Parts 12
Definition and terminology 14
Mounting and Installation 16
Installation 17
Piping method 18
Wiring 19
Outline of Settings [Measurement mode] 25
Change of Set Value [3 step setting mode] 26
Default setting 26
Change of Set Flow and Hysteresis [Simple setting mode] 29
Change the Function Settings [Function selection mode] 31
Function selection mode 31
Default setting 32
F0 Reference condition/Units selection function/Switch output function 33
F1 Setting of OUT1 35
F3 Select digital filter 44
F5 FUNC setting 45
F10 Sub display setting (Line name setting) 48
F13 Setting for reverse display mode 50
F14 Zero cut-off setting 51
F30 Setting of accumulated value holding time 55
F80 Set display OFF mode 56
F81 Security code 57
F90 Setting of all functions 59
F96 Check of input signal 61
F98 Setting of output check 62
F99 Reset to the default settings 65

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No.PF※※-OMX0002
Other Settings 66
Maintenance 69
Forgotten the Security Code 69
IO-Link Specifications 70
Outline of IO-Link functions 70
Communication specifications 70
Process data 71
IO-Link parameter setting 74
Troubleshooting 85
Error display 89
Specifications 90
Characteristics data 93
Dimensions 96

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No.PF※※-OMX0002
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)*1),
and other safety regulations.
*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines .(Part 1: General requirements)
ISO 10218: Manipulating industrial robots -Safety.
etc.
Caution
Caution indicates a hazard with a low level of risk which, if not avoided, could
result in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk which, if not avoided,
could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if not avoided, will
result in death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the
equipment or decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications
based on necessary analysis and test results.
The expected performance and safety assurance of the equipment will be the responsibility of the person
who has determined its compatibility with the product.
This person should also continuously review all specifications of the product referring to its latest catalog
information, with a view to giving due consideration to any possibility of equipment failure when
configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our products must be
performed by an operator who is appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is
confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to
prevent falling or runaway of the driven objects have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are
implemented and the power from any appropriate source is cut, and read and understand the specific
product precautions of all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the
product is to be used in any of the following conditions.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place
exposed to direct sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalog.
3. An application which could have negative effects on people, property, or animals requiring special
safety analysis.
4. Use in an interlock circuit, which requires the provision of double interlock for possible failure by using
a mechanical protective function, and periodical checks to confirm proper operation.

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No.PF※※-OMX0002
Safety Instructions
Caution
1.The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following "Limited warranty and Disclaimer" and "Compliance
Requirements".
Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is delivered,
whichever is first.2)
Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility,
a replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage
incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers
noted in the specified catalog for the particular products.
2) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum
pad or failure due to the deterioration of rubber material are not covered by the limited
warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass
destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the
relevant security laws and regulation of the countries involved in the transaction. Prior to the
shipment of a SMC product to another country, assure that all local rules governing that export
are known and followed.
Caution
SMC products are not intended for use as instruments for legal metrology.
Products that SMC manufactures or sells are not measurement instruments that are qualified by pattern
approval tests relating to the measurement laws of each country.
Therefore, SMC products cannot be used for business or certification ordained by the measurement laws of
each country.

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No.PF※※-OMX0002
■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.
■Safety Instructions
Warning
■Do not disassemble, modify (including the replacement of board) or repair.
Otherwise, an injury or failure can result.
■Do not operate the product outside of the specifications.
Do not use the product with flammable or harmful fluids.
Fire, malfunction, or damage to the product may result.
Check the specifications before use.
■Do not use in an environment where flammable, explosive or corrosive gases are present.
Otherwise, fire, explosion or corrosion may occur.
The product is not designed to be explosion proof.
■Do not use the product with flammable fluid
Fire or an explosion may result.
Only air and N2are applicable.
■Do not use the product in a place where static electricity is a problem.
Otherwise failure or malfunction of the system can result.
■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.
•Stop the air supply, exhaust the residual pressure in piping and verify that the air is released before performing
maintenance work.
Otherwise an injury can result.

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No.PF※※-OMX0002
Caution
■Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction and damage to the product can result.
■After maintenance is complete, perform appropriate functional inspections and leak test.
Stop operation if the equipment does not function properly or there is leakage of fluid.
When leakage occurs from parts other than the piping, the product itself may be damaged.
Cut off the power supply and stop the fluid supply.
Do not apply fluid if the system is leaking.
Otherwise, an unexpected malfunction may occur and it will become impossible to ensure safety.
■Handling Precautions
○Follow the instructions given below for selecting and handling.
●The instructions on design and selection (installation, wiring, environment, adjustment, operation,
maintenance, etc.) described below must be followed.
Product specifications
•Use the specified voltage.
Otherwise failure or malfunction can result.
Insufficient supply voltage may not drive a load due to a voltage drop inside the product.
Check the operating voltage of the load before use.
•Do not apply a load that exceeds the max. load voltage or current.
This may cause damage or shorten the lifetime of the product.
•Data stored by the product is not deleted, even if the power supply is cut off.
(Limit to rewrite: 1,500,000 times)
•The applicable fluids for this product are dry air and N2.
The operating fluid temperature range is 0 to 50 oC.
•Before designing piping confirm the pressure loss (Characteristic data) at the sensor from the pressure
loss graph. Confirm pressure loss of the sensor from the characteristics data.
•For the details of compressed air quality, refer to JIS B 8392: 2012[3: 6: -].
•Use within the specified measurement flow rate and operating pressure.
Otherwise it will not be able to perform proper measurement due to delivery delay of the fluid.
•Reserve a space for maintenance.
Design the system allowing the required space for maintenance.

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No.PF※※-OMX0002
●Product handling
Mounting
•Tighten to the specified tightening torque.
If the tightening torque is exceeded, the product can be damaged.
Insufficient torque can cause displacement of the product from its proper position and the looseness of the
mounting screws.
•If a commercially available switching power supply is used, be sure to ground the frame ground (FG)
terminal.
•Do not drop, hit or apply excessive shock to the product.
Otherwise damage to the internal components may result, causing malfunction.
•Do not pull the lead wire forcefully, or lift the product by the lead wire.
(Tensile strength 49 N or less)
Hold the product by the body when handling to prevent damage.
•When connecting the piping, hold the piping and a part of the metal area with a spanner.
Holding other parts of the product with a spanner may damage the product.
•Any dust left in the piping should be flushed out by air blow before connecting the piping to the product.
Otherwise it can cause damage or malfunction.
•Refer to the flow direction of the fluid indicated on the product label for installation and piping.
•Do not mount the body with the bottom facing upwards.
Retention of air can cause inability to measure accurately.
•Do not insert metal wires or other foreign matter into the flow path.
This can damage the sensor causing failure or malfunction.
•Never mount the product in a place that will be used as a scaffold during piping.
The product may be damaged if excessive force is applied by stepping or climbing onto it.
•Do not apply excessive rotation force to the monitor.
The monitor with integrated display can be rotated 90oclockwise.
Rotating the display with excessive force will damage the end stopper.
•Visibility decreases if the display is viewed from the opposite side to the buttons.
Check the settings and display from in front of the display.
•If there is a risk of foreign matter entering the fluid, install a filter of mist separator at the inlet to avoid
failure and malfunction.
Otherwise it can cause damage or malfunction. Or the flow switch will become unable to measure accurately.
Air quality specified in the product specifications can be satisfied by using the pneumatic circuit below.
•Do not connect equipment or piping which may generate a fluctuation in the flow or drift at the IN side of
the product.
When installing the regulator at the IN side of the product, make sure that hunting is not generated.
•The piping on the IN side must have a straight section of piping whose length is 8 times the piping I.D.
or more. If a straight section of piping is not installed, the accuracy will vary by more than 3%F.S.
: "Straight section" means a section of the piping without any bends or rapid changes in the cross sectional area.
Recommended pneumatic circuit example (for compressed air)

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No.PF※※-OMX0002
Wiring (Including connecting/ disconnecting of the connectors)
•Do not pull hard on the lead wire. Especially never lift the product equipped with fitting and piping by
holding the lead wires.
Damage to the connector, circuit board, cover or internal components may result, causing failure or malfunction.
•Avoid repeatedly bending, stretching or applying a heavy object or force to the lead wire.
Repetitive bending stress or tensile stress can cause the sheath of the wire to peel off, or breakage of the wire.
If the lead wire can move, secure it near the body of the product.
The recommended bend radius of the lead wire is 6 times the outside diameter of the sheath, or 33 times the
outside diameter of the insulation material, whichever is larger.
Replace the damaged lead wire with a new one.
•Wire correctly.
Incorrect wiring may cause malfunction or damage to the product.
•Do not perform wiring while the power is on.
Otherwise damage to the internal components may result, causing malfunction.
•Do not route wires and cables together with power or high voltage cables.
Route the wires of the product separately from power or high voltage cables to prevent noise and surge from
entering the product.
•Confirm correct insulation of wiring.
Poor insulation (interference with other circuits, poor insulation between terminals etc.) can apply excessive
voltage or current to the product causing damage.
•Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 20 m.
Wire the DC(-) line (blue) as close as possible to the power supply.
•When analogue output is used, install a noise filter (line noise filter, ferrite element, etc.) between the
switch-mode power supply and the product.

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No.PF※※-OMX0002
Operating environment
•Do not use the product in an environment where the product is constantly exposed to water splashes.
Otherwise failure or malfunction can result. Take measures such as using a cover.
•Do not use the product in an environment where corrosive gases or fluids can be splashed.
Otherwise damage to the internal parts can result, causing malfunction.
•Do not use the product in a place where the product could be splashed by oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent,
even for a short time, it may be adversely affected (damage, malfunction, or hardening of the lead wires).
•Do not use in an area where surges are generated.
When there are machines or equipment that generate large surges near the product (magnetic type lifter, high
frequency inductive furnace, motor, etc.), this can result in deterioration and damage of the internal components.
Take protective measures to isolate the surge sources, and prevent the lines from coming into close contact.
•Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is directly driven, use the product with built in surge
protection.
•The product is CE marked, but not immune to lightning strikes. Take measures against lightning strikes
in the system.
•Mount the product in a location that is not affected by vibration or impact.
Otherwise it can cause damage or malfunction.
•Do not use the product in the presence of a magnetic field.
Malfunction can result.
•Do not let foreign matter, such as wire debris, get inside the product.
Otherwise it can cause damage or malfunction.
•Do not use the product in an environment that is exposed to temperature cycle.
Heat cycles other than ordinary changes in temperature can adversely affect the internal components of the
product.
•Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, protect the product from the sunlight.
Failure or malfunction may occur.
•Keep within the specified ambient temperature range.
The ambient temperature range is 0 to 50 oC.
Operation under low temperature may lead to damage or operation failure due to frozen moisture in the fluid or air.
Protection against freezing is necessary.
Mounting of an air dryer is recommended for elimination of drainage and water.
Avoid abrupt temperature changes even within the specified temperature range.
•Do not operate close to a heat source, or in a location exposed to radiant heat.
Insufficient air quality may cause operation failure.

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No.PF※※-OMX0002
Adjustment and Operation
•Connect the load before turning the power supply on.
•Do not short-circuit the load.
Although error is displayed when the product load has a short circuit, generated over current may lead to the
damage of the product.
•Do not press the setting buttons with a sharp pointed object.
This may damage the setting buttons.
•Supply power under no flow conditions.
•If using the product to detect very small flow differences, warm up the product for 10 to 15 minutes first.
There will be a drift on the display/ analogue output of approx 2 to 3% for 10 minutes after the power supply is
turned on.
•The product doesn't produce and output signal for 3 seconds after the power is supplied.
•Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
•During the initial setting and flow setting, the product will switch the measurement output with the
condition before setting.
Check the effect to the equipment before setting.
Stop the control system for setting, if necessary.
•Do not touch the LCD during operation.
The display can vary due to static electricity.
Maintenance
•Perform regular maintenance and inspections.
There is a risk of unexpected failure of components due to the malfunction of equipment and machinery.
•Before performing maintenance, turn off the power supply, stop the air supply, exhaust the residual
compressed air in the piping, and verify the release of air.
Otherwise, unintended malfunction of system components can result.
•Remove the condensate periodically.
If condensate enters the secondary side, it can cause operating failure of pneumatic equipment.
•Do not use solvents such as benzene, thinner etc. to clean the product.
This may damage the surface of the body or erase the markings on the body.
Use a soft cloth to remove stains.
For heavy stains, use a damp cloth that has been soaked with diluted neutral detergent and fully squeezed, then
wipe up the stains again with a dry cloth.

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No.PF※※-OMX0002
Model Indication and How to Order
Accessories/Part numbers
If an accessory is required, order using the following part number.
Product number
Description
Note
ZS-37-A
Lead wire with M12 connector
Length: 3 m
ZS-49-A
Lead wire with M12 connector
Length: 3 m, M12 (female) - M12 (male)

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No.PF※※-OMX0002
Names and Functions of Individual Parts
Body
Connector pin numbers
(on the product)
1
DC(+)
2
FUNC
3
DC( - )
4
OUT (C/Q)
Element
Description
Display
See below
Connector
M12 4-pin connector for electrical connections.
Lead wire with
M12 connector
Lead wire for power supply and outputs.
Piping port
For piping connections. Connected to the fluid inlet at IN and to the fluid outlet at OUT.
Body
The body of the product.
Display
Element
Description
Main display
Displays the instantaneous flow value and error codes. (2 colour display)
Operation LED
Indicates the output status of OUT.
When the output is ON: Orange LED is ON.
When the accumulated pulse output mode is selected, the output display will turn off.
Sub display
Displays the accumulated flow, set value and peak/bottom value when in measurement mode.
▲button (UP)
Selects the mode and the display shown on the Sub display or increases the switch point.
S button (SET)
Press this button to change the mode and to set a value.
▼button (DOWN)
Selects the mode and the display shown on the Sub display or decreases the switch point.
Units display
(Instantaneous flow)
Indicates the flow measurement units currently selected.
Units display
(Accumulated flow)
Indicates the flow measurement units currently selected.
IO-Link status
indicator light
LED is ON when OUT1 is used in IO-Link mode. (LED is OFF in SIO mode)

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No.PF※※-OMX0002
●IO-Link indicator light operation and display
Communication
with master
IO-Link status
indicator light
Status
Sub screen display 1
Content
Yes
IO-Link
mode
Correct
Operate
Normal communication
status
(Reading of
measurement value)
Start up
When communication
starts up.
Preoperate
Abnormal
Version does
not match
Version of master and
IO-Link does not match
2
No
Communication
shut-off
Correct communication
was not received for
1 second or more.
SIO mode
General switch output
LCD display: " " OFF, " " Flashing, " " ON
1: "ModE - - -" is displayed when selecting the modes on the sub screen.
2: When the product is connected to the IO-Link master with version other than "V1.1", an error is generated.

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No.PF※※-OMX0002
■Definition and terminology
Term
Definition
A
Accumulated flow
The total amount of fluid that has passed through the device. If an
instantaneous flow of 100 L/min lasts for 5 minutes, the accumulated flow will
be 5 x 100 = 500 L.
Accumulated flow external
reset
A function to reset the accumulated value to "0" when an external input signal
is applied.
Accumulated pulse output
A type of output where a pulse is generated every time a predefined
accumulated flow passes. It is possible to calculate the total accumulated flow
by counting the pulses.
Accumulated-value hold time
A function to store the cumulative flow value in the product's internal memory
at certain time intervals. Reads the memory data when power is supplied.
Accumulation of data begins with the value read at the moment power is
supplied. The time interval for memorizing can be selected from 2 or 5
minutes.
Analogue output
Outputs a value proportional to the flow rate. When the analogue output is in
the range 1 to 5 V, it will vary between 1 to 5 V according to the rate of flow.
The same for analogue output of 0 to 10 V or 4 to 20 mA.
D
Delay time
The setting time from when the flow applied to the flow switch reaches the set
value, to when the ON-OFF output actually begins working.
Delay time setting can prevent the output from chattering.
The response time indicates when the set value is 90% in relation to the step
input.
Display range
Displayable range of flow.
Digital filter
Function to add digital filtering to the fluctuation of flow value. Smooth the
fluctuation of displayed value for sharp start up or fall of the flow.
When the function is valid, digital filtering is reflected to the ON/OFF of the
switch output and analogue output. The response time indicates when the set
value is 90% in relation to the step input.
Output chattering or flicker in the measurement mode display can be reduced
by setting the digital filter.
F
F.S.
(full span/ full scale)
This means "full span" or "full scale", and indicates varied analogue output
range at rated value. For example, when analogue output is 1 to 5 V,
F.S. = 5 [V] –1 [V] = 4 [V]. (Reference: 1%F.S. = 4 [V] × 1% = 0.04 [V])
H
Hysteresis
The difference between ON and OFF points used to prevent chattering.
Hysteresis can be effective in avoiding the effects of pulsation.
Hysteresis mode
Mode where the switch output will turn ON when the flow is greater than the
set value, and will turn OFF when the flow falls below the set value by the
amount of hysteresis or more.
I
Instantaneous flow
The flow passing per unit of time. If it is 10 L/min, there is a flow of 10 L
passing through the device in 1 minute.
Internal voltage drop
The voltage drop across the product (and therefore not applied to the load),
when the switch output is ON. The voltage drop will vary with load current,
and ideally should be 0 V.

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No.PF※※-OMX0002
Terminology
Definition
K
Key-lock function
Function that prevents changes to the settings of the flow switch (disables
button operation).
N
Normal condition
The flow which is converted into the volume at 0 oC and 101.3 kPa (absolute
pressure).
<nor> indicates that the product is in normal condition.
O
Operating pressure range
The pressure range in which the product can be used.
Operating temperature range
Ambient temperature range in which the product can operate.
Operating humidity range
Humidity range in which the product can operate.
Operating fluid temperature
Range of fluid temperature that can be measured by the product.
P
Pressure characteristics
Indicates the change in the display value and analogue output when the fluid
pressure changes.
Proof pressure
Pressure limit that if exceeded will result in mechanical and/or electrical
damage to the product.
R
Rated flow range
The flow range within which the product will meet all published
specifications.
Repeatability
Reproducibility of the display or analogue output value, when the measured
quantity is repeatedly increased and decreased.
S
Set point range
Range in which ON-OFF point (threshold) is adjustable
Smallest settable increment
The resolution of set and display values.
If the minimum setting unit is 2 L/min, the display will change in 2 L/min steps,
e.g. 30…..32…..34 L/min.
Standard condition
The flow which is converted to the volume at 20 oC and 101.3 kPa (absolute
pressure).
<Std> indicates that the product is standard condition.
Switch output
Output type that has only 2 conditions, ON or OFF. In the ON condition an
indicator LED will show, and any connected load will be powered. In the OFF
condition, there will be no indicator LED and no power supplied to the load. An
output showing such behavior is called switch output.
T
Temperature characteristics
Indicates the change in the display value and analogue output caused by
ambient temperature changes.
U
Units selection function
A function to select display units other than the international unit (SI unit)
specified in the new Japanese measurement law. The product is not equipped
with this function.
W
Wetted part
A part that comes into physical contact with the fluid.
Window comparator mode
An operating mode in which the switch output is turned on and off depending
on whether the flow is inside or outside the range of two set values

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No.PF※※-OMX0002
Mounting and Installation
Mounting
•Never mount the product in a place that will be used as a mechanical during piping.
•Attach the piping so that the fluid flows in the direction indicated by the arrow on the body.
•Never mount the product upside down.
•The monitor with integrated display can be rotated.
Rotating the display with excessive force will damage the end stop.
○Flow direction
○Rotation of the display

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No.PF※※-OMX0002
■Installation
Direct mounting
•Install the product with 4 screws suitable for the product number according to the required tightening
torque.
Product number
Suitable screws
Tightening torque
Thread depth
PF3A703H
Equivalent to M4
1.5 Nm±10％
7
PF3A706H
Equivalent to M5
3 Nm±10％
8
PF3A712H
Equivalent to M6
5.2 Nm±10％
9
•Prepared by the user.
•Refer to the dimension drawing (page 96) for the diameter and depth of the mounting screw holes.

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No.PF※※-OMX0002
■Piping
•Do not connect equipment or piping which may generate a fluctuation in flow or drift at the IN side of the
product.
When installing a regulator at the IN side of the product, make sure that hunting is not generated.
•The piping on the IN side must have a straight section of piping whose length is 8 times the piping diameter
or more.
If a straight section of piping is not installed, the accuracy will vary by approximately 3%F.S.
Refer to the graph for IN side straight pipe length and accuracy (page 95).
•Avoid sudden changes to the piping size on the IN side of the product.
The accuracy may vary.
•Do not release the OUT side piping port of the product directly to the atmosphere without connecting piping.
The accuracy may vary.
•Use the correct tightening torque for piping. (Refer to the table below for the required torque values.)
•If the tightening torque is exceeded, the product can be damaged.
If the tightening torque is insufficient, the fittings may become loose.
•Avoid any sealing tape getting inside the fluid passage.
•Ensure there is no leakage after piping.
•When mounting the fitting, a spanner should be used on the body (metal part) of the fitting only.
Holding other parts of the product with a spanner may damage the product.
Specifically, make sure that the spanner does not damage the M12 connector.
Nominal thread size
Required torque
Port size
Width across flats of attachment
Rc1、NPT1
36 to 38 Nm
1
45 mm
Rc1 1/2, NPT1 1/2, Rc2, NPT2
48 to 50 Nm
1 1/2
60 mm
2
70 mm

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No.PF※※-OMX0002
■Wiring
Connection
•Connections should only be made with the power supply turned off.
•Use a separate route for the product wiring and any power or high voltage wiring. If wires and cables are
routed together with power or high voltage cables, malfunction may result due to noise.
•If a commercially available switching power supply is used, be sure to ground the frame ground (FG)
terminal. If the product is connected to the commercially available switching power supply, switching noise
will be superimposed and the product specifications will not be satisfied. In that case, insert a noise filter
such as a line noise filter/ ferrite between the switching power supplies or change the switching power
supply to the series power supply.
Connecting/Disconnecting
•Align the lead wire connector with the connector key groove, and insert it straight in. Turn the knurled part
clockwise. Connection is complete when the knurled part is fully tightened. Check that the connection is not
loose.
•To remove the connector, loosen the knurled part and pull the connector straight out.
Connector pin numbers (lead wire)
•Used as switch output device
Pin number
Wire colour
Description
Function
1
Brown
DC(+)
24 VDC
2
White
FUNC
Analogue output or External input
3
Blue
DC( - )
0 V
4
Black
OUT
Switch output
•Used as IO-Link device
Pin number
Wire colour
Description
Function
1
Brown
DC(+)
18 to 30 VDC
2
White
N.C./Other
Not connected/Analogue output or External input
3
Blue
DC( - )
0 V
4
Black
C/Q
Communication data (IO-Link)/Switch output (SIO)