SMC Networks IN502-44 Series User manual

No.PS※※-OMY1006-B
PRODUCT NAME
Flow Controller for Air
MODEL / Series / Product Number
IN502-44-#
IN502-45-#

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No.PS※※-OMY1006-B
Table of Contents
Safety Instructions 2
Model Indication and How to Order 9
Names and Functions of Product Parts 10
Definition and terminology 11
Mounting and Installation 14
Installation 14
Piping 14
Wiring 15
Internal circuit and wiring examples 16
Outline of Settings 17
Initial Settings 19
Function Selection Mode 21
Function selection mode 21
Default setting 21
F0 Setting of the reference condition, flow rate display unit,
pressure display unit and switch output PNP/NPN switch 23
F1 Setting of OUT1 24
F10 Sub display setting 27
F14 Zero cut-off setting 29
F21 Analogue input setting 30
F22 Analogue output setting 31
F32 Control parameter setting 32
F80 Power saving mode setting 33
F81 Security code 34
F90 Setting of all functions 36
F96 Input check 38
F98 Output check 39
F99 Reset to default settings 40
Other Settings 41
Maintenance 44
Forgotten the Security Code 44
Troubleshooting 45
Specifications 53
Characteristics data 55
Parts in contact with fluid 58
Dimensions 59

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No.PS※※-OMY1006-B
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potentialhazard with the labelsof "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 andmalfunction.
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.PS※※-OMY1006-B
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.PS※※-OMY1006-B
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 changing the printed circuit board) or repair.
An injury or failure 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.
■Do not operate in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
This product is not designed to be explosion proof.
■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
•Stop the air supply, exhaust the residual pressure and verify that the air is released before performing
maintenance
Otherwise an injury can result.

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No.PS※※-OMY1006-B
Caution
■Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction or damage to the product 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.
■NOTE
○Follow the instructions given below when designing, selecting and handling the product.
Caution
1. When selecting equipment, carefully consider the application, required specifications, and operating
conditions (fluid, pressure, flow rate, filtration, and environment), making sure not to exceed the
specification range.
2. This product is provided for normally typical forms of use in the manufacturing industry. As such, to use
the product for applications that may affect the human body directly or indirectly such as caisson shield is
not foreseen.
3. When the product is used as an air blower for food, install an appropriate filter to eliminate foreign matter
in compressed air for air blowing. (Refer to the following example of pneumatic circuit).
4. Quality management relating to hygiene for food and medical treatment is not implemented for the product.
The product is produced in same line that manufactures other product which uses other materials. In rare
cases, some of these materials can be found as a residue.
5. Food grease used
•Fluid contact parts: NSF H1 grade grease
•Part other than fluid contact parts: NSF H1 grade grease or grease which is not NSF H1 grade
6. The grease used in the solenoid valves built into the product is not food grease.
Grease may drain out of the product from the solenoid valve EXH. If necessary, pipe it to the outside of
the area.
7. The product generates particles from the wear of sliding parts inside. When the product is used as an air
blower, install an appropriate filter on the outlet of the product to prevent foreign matter from flowing to
the downstream. Filters require regular inspection, replacement of the element, and maintenance
referring to the operation manual.
8. Flush the piping line before using the product for the first time and after it has been replaced. Also, if
piping, etc., is to be connected, flush (air blow) before using the product for the first time in order to
reduce the effects of the dust generated from the connection, etc. Flushing the line is also required to
eliminate contamination resulting from the installation of piping lines. Therefore, be sure to flush the line
before running the system.

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No.PS※※-OMY1006-B
●The instructions on design and selection (installation, wiring, environment, adjustment, operation,
maintenance, etc.) described below must also be followed.
Product specifications
•Use the specified voltage.
Otherwise failure or malfunction can result.
Insufficient supply voltage may not drive the load due to a voltage drop inside the product.
•Do not exceed the specified maximum allowable load.
Otherwise it can cause damage or shorten the lifetime of the product.
•Design the product to prevent reverse current when the circuit is opened or the product is forced to
operate for operational check.
Reverse current can cause malfunction or damage to the product.
•Input data to the product is not deleted, even if the power supply is cut off.
(Writing time: 10,000 times, Data duration: 20 years after power off)
•The applicable fluids for this product are dry air and N2.
The operating fluid temperature range is 0 to 50 oC.
•For the details of compressed air quality, refer to JIS B 8392: 2012[2: 6: 3].
•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.
Allow sufficient space for maintenance when designing the system.
●Product handling
Installation
•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.
The entry of drain or water may cause the sensor to fail or malfunction.
•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.
•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.
•This product does not function as a shut off valve. Operate the system to shut off the supply pressure
when not operating the product.

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No.PS※※-OMY1006-B
•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.
•Do not install a lubricator on the inlet side of the product. Otherwise, oil may enter into the product and
damage the internal parts.
Wiring
•Do not pull hard on the lead wire. Especially never lift the product equipped with fitting and piping by
holding the lead wires.
Otherwise damage to the internal parts can result, causing malfunction or to be off the connector.
•Avoid repeatedly bending or stretching the lead wire, or placing heavy load on them.
If the lead wire can move, fix it near the body of the product.
Replace the damaged lead wire with a new one.
•Wire correctly.
Incorrect wiring can break the product.
•Do not perform wiring while the power is on.
Otherwise damage to the internal parts can result, causing malfunction.
•Do not route wires and cables together with power or high voltage cables.
Otherwise the product can malfunction due to interference of noise and surge voltage from power and high voltage
cables to the signal line. Route the wires (piping) of the product separately from power or high voltage cables.
•Confirm proper insulation of wiring.
Poor insulation (interference from another circuit, poor insulation between terminals, etc.) can lead to excess
voltage or current being applied to the product, causing damage.
•Design the system to prevent reverse current when the product is forced to operate for operational check.
Depending on the circuit used, insulation may not be maintained when operation is forced, allowing reverse current
to flow, which can cause malfunction and damage the product.
•Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 30 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.
Environment
•Do not use the product in area that is exposed to corrosive gases, chemicals, sea water, water or steam.
Otherwise failure or malfunction can result.
•Do not use the product in an environment where the product is constantly exposed to water or oil splashes.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent, it
may be adversely affected (damage, malfunction, or hardening of the lead wires).
•Do not use in an area where surges are generated.
If there is equipment which generates a large amount of surge (solenoid type lifter, high frequency induction
furnace, motor, etc.) close to the product, this may cause deterioration or breakage of the internal circuit of the
product. Avoid sources of surge generation and crossed lines.
•Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is driven directly, use a product with a built-in surge
absorbing element.
•The product is CE/UKCA marked, but not immune to lightning strikes. Take measures against lightning
strikes in the system.
•Mount the product in a place that is not exposed to vibration or impact.
Otherwise failure or malfunction can result.
•Prevent foreign matter such as remnant of wires from entering the product.
Take proper measures for the remnant not to enter the product in order to prevent failure 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 inside of the product.

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No.PS※※-OMY1006-B
•Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, shade the product from the sunlight.
Otherwise failure or malfunction can result.
•Keep within the specified ambient temperature range.
The ambient temperature range is 0 to 50 oC. Operation at low temperature (5 oC or less) may cause damage or
operation failure due to frozen moisture in the air.
Protection against freezing is necessary.
Avoid sudden temperature change even within specified temperature.
•Do not operate close to a heat source, or in a location exposed to radiant heat.
Otherwise malfunction can result.
Adjustment and Operation
•Turn the power on after connecting a load.
Otherwise it can cause excess current causing instantaneous breakage of the product.
•Do not short-circuit the load.
Although error is displayed when the load at the output part 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.
It may damage the setting buttons.
•If using the product to detect very small pressure rates, Warm up the product for 10 to 15 minutes first.
The controlled flow rate/analogue output may fluctuate by 2 to 3% for 10 minutes after the power supply is turned on.
•Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
For details of each setting, refer to page 17 to 43 of this manual.
•Do not touch the LCD during operation.
The display can vary due to static electricity.
Maintenance
•Turn OFF the power supply before maintenance.
There is a risk of unexpected malfunction.
•Perform regular maintenance and inspections.
There is a risk of unexpected malfunction.
•Do not use solvents such as benzene, thinner etc. to clean the product.
They could damage the surface of the body and erase the markings on the body.
Use a soft cloth to remove stains. For heavy stains, use a cloth soaked with diluted neutral detergent and fully
squeezed, then wipe up the stains again with a dry cloth.

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No.PS※※-OMY1006-B
Model Indication and How to Order
1:An analogue voltage input 0 to 5 V or 0 to 10 V can be specified by pressing the button.
The factory default setting is 0 to 5 V.
2:An analogue voltage output 1 to 5 V or 0 to 10 V can be specified by pressing the button.
The factory default setting is 1 to 5 V.
3: The behaviour of the product when the power is turned off during flow rate control can be selected by reference to the selected
product number. Note that "no flow" models do not guarantee that they function as shut off valves. "Flow rate kept unchanged"
models do not guarantee that they keep flow rates unchanged.
4: A lead wire with M12 connector is not included. Order separately.
○Accessories/part numbers
Name
Part number
Remarks
Lead wire with M12 connector
(Separate line on one side)
EX500-AP010-A
1 metre long, elbow union
EX500-AP010-S
1 metre long, straight union
EX500-AP050-A
5 metre long, elbow union
EX500-AP050-S
5 metre long, straight union
Lead wire with M12 connector
(Connector on both sides)
EX9-AC005-SSPS
0.5 metre long, straight union
EX9-AC010-SSPS
1 metre long, straight union
EX9-AC020-SSPS
2 metre long, straight union
EX9-AC030-SSPS
3 metre long, straight union
EX9-AC050-SSPS
5 metre long, straight union
EX9-AC100-SSPS
10 metre long, straight union
:A lead wire with M12 connector is not included. Order separately.
Refer to page 60 to 61 for further details.

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No.PS※※-OMY1006-B
Names and Functions of Product Parts
○Parts names
•Body
Connector: Connect a lead wire with M12 connector.
Display: See the diagram below.
Piping port: Port for connecting to piping (Rc 1/2). IN represents "inlet" and OUT represents "outlet."
Solenoid valve EXH: Exhaust port(M5 female thread) for the internal solenoidvalve. Do not block the exhaust.
•Display/controls
Operation LED (orange): Turns ON when OUT is ON
Main display (red/green): Displays the current controlled flow, setting mode status, selected display units
and error codes.
UP button: Selects the mode and increases the ON/OFF set value.
DOWN button: Changes the sub display, selects the mode and decreases the ON/OFF set value.
SET button: Press this button to change mode and to confirm settings.
Display unit 1 (red/green): Reference condition: Turns on when STD is selected.
Display unit 2 (red/green): The selected flow rate unit lights up.
For models without the units selection function, the unit is fixed to the SI unit (L/min).
Sub display (left) (orange): Displays a display item label.
Sub display (orange): Displays a display item, setting value, peak/bottom value, etc.
Connector pin numbers
(on the body)
Pin number
Details
1
DC(+)
2
Analogue input
3
DC( - )
4
OUT1 (SW output)
5
Analogue output

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No.PS※※-OMY1006-B
■Definition and terminology
Term
Definition
A
Analogue output
Function to output a voltage or current proportional to the indicated flow rate.
B
Bottom value display (mode)
The minimum flow recorded from when the power was supplied to the present
time.
C
Chattering
Phenomenon of the switch output turning ON and OFF repeatedly at high
frequencies.
Commanded flow rate
Target controlled flow rate obtained from input signals.
Control accuracy
Accuracy of the controlled flow rate in relation to the commanded flow rate.
D
Delay time
Setting time from when the controlled flow rate reaches the set value, to when
the ON-OFF output actually begins operating. Delay time setting can prevent
the output from chattering.
Display colour
Indicates the colour of digits on the digital display.
Always green, always red, green (switch OFF) changing to red (switch ON),
or red (switch OFF) changing to green (switch ON) are available in window
comparator mode.
E
Error indication
A code number displayed to identify the error code detected by the
self-diagnostic function of the product.
Refer to "Error display function" on page 51 for details of error codes.
Error output
Switches the switch output to ON/OFF when an error is displayed.
Refer to "List of output modes" on page 26 for details of operating conditions.
Refer to "Error display function" on page 51 for details of error codes.
F
F.S.
(full span, full scale)
Abbreviation of full span or full scale: the difference between the minimum
and maximum rated flow values. In other words, the maximum rated
fluctuation range of the product. For example, when analogue output is 1 to 5
V, F.S. = 5[V] –1[V] = 4[V]. (Reference: 1% F.S. = 4[V] x 1% = 0.04[V])
Fluid temperature range
Range of fluid temperature in which a fluid is suitable for the product.
Function selection mode
A mode in which setting of functions is performed. It is a separate menu from
the pressure setting. If any function setting needs to be changed from the
factory default, each setting can be selected using "F". The setting items are:
display colour, operation mode, output type, power saving mode, security
code, etc.
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.
Insulation resistance
Insulation resistance of the product. The resistance between the electrical
circuit and the enclosure.
K
Key-lock function
Function that prevents changes to the settings of the product (disables button
operation).
L
Limit deviation tolerance mode
Mode of output that maintains the switch output level when the controlled flow
is within a certain range of the commanded flow rate.
Refer to "List of output modes" on page 26 for details of operating conditions.

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No.PS※※-OMY1006-B
Term
Definition
M
Maximum applied voltage
Maximum voltage that can be connected to the output of an NPN device.
Maximum load current
The maximum current that can flow to the switch output (output line).
Maximum (minimum) load
impedance
Maximum or minimum load (resistance or impedance) that can be applied to
the output (output line) of the analogue current output.
Measurement mode
Operating condition in which flow rate control, display, and switching
operations take place.
Minimum unit
Resolution of indicated values and input signals.
N
Normal condition
Flow rate which is converted into the volume at 0oC and 101.3 kPa (absolute
pressure) and displayed. [nor] indicates that the product is in normal condition
Normal output
One of the switch output types, in which the switch is turned ON when a
controlled flow rate is detected within the set limit deviation tolerance range.
(Refer to the List of output modes on page 26)
O
Operation LED
A light that turns ON when the switch output is ON.
Operation mode
Limit deviation tolerance mode or error output mode can be selected.
Output impedance
Resistance value of components between the voltage output element and
output line residing in the output section of the analogue voltage output, which
is indicated after a conversion into a resistance value with a resistor
connected in series to the voltage output element. An error may occur in the
output voltage depending on the output and input impedance of the
customer's connected device.
(Example: An attempt to output a 5 V analogue output by connecting a
pressure switch with 1 kΩ output impedance to an A/D converter with 1 MΩ
input impedance results in an approximately 0.005 V error because the
detection voltage of that A/D converter is 5(V) x 1(MΩ) / (1(kΩ) + 1(MΩ)) ≒
4.995(V).
Output type
The working principle of the switch output. Normal output and reverse output
can be selected. Refer to "List of output modes" on page 26 for details of
operating conditions.
P
Parts in contact with fluid
(or fluid contact parts)
Parts of the product that are in contact with the fluid to be detected.
Peak value display (mode)
The maximum flow rate recorded from when the power was supplied to the
present time.
Power saving mode
Operating mode in which the digital display turns off to reduce the power
consumption.
Pressure characteristics
Indicates the change in the controlled flow rate due to fluid pressure changes.
R
Rated controlled flow range
Controlled flow range within which the product will meet all published
specifications.
Repeatability
Repeatability of the controlled flow rate, when the measured flow quantity is
repeatedly increased and decreased in the same operating environment.
Residual voltage
The difference between the ideal ON voltage and the actual voltage when the
switch output is on. Varies with load current. Ideally should be 0 V.
Reverse output
One of the switch output types, in which the switch is turned ON when a
controlled flow rate outside the set limit deviation tolerance range is detected.
(Refer to the List of output modes on page 26)
Ripple
A type of chattering.

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No.PS※※-OMY1006-B
Term
Definition
S
Set controlled flow rate range
Controlled flow rate range in which the product can be controlled.
Settling time
Time for the controlled flow rate to reach within ±5% F.S. of the commanded
flow rate value in relation to the step input.
Standard condition
The flow rate which is converted into the volume at 20oC and 101.3 kPa
(absolute pressure) and displayed.
[Std] indicates that the product is in standard condition.
Switch output
Sometimes referred to as "ON-OFF output".
T
Temperature characteristics
Indicates the change in the controlled flow rate due to ambient or fluid
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 for use in
Japan is not equipped with this function.
W
Withstand pressure
Pressure limit that if exceeded will result in mechanical and/or electrical
damage to the product.
Withstand voltage
A measure of the product's resistance to a voltage applied between the
electrical circuit and the case. Durability in withstanding voltage. The product
may be damaged if a voltage over this value is applied.
(The withstand voltage is not the supply voltage used to power the product).
Z
Zero-clear function
Function to adjust the indicated pressure to zero.

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No.PS※※-OMY1006-B
Mounting and Installation
Mounting
•Never mount the product in a place that will be used as a foothold.
•Never mount the product upside down.
•Mount the product so that the fluid flows in the direction indicated by the name plate on the side of the body.
•If the EXH port of the solenoid valve may be exposed to water or dust, connect a fitting and tube (sold
separately) and route the tube to a safe place where it will not be affected by water or dust.
■Installation
•Install the product using 4 screws suitable for the product, according to the required tightening torque.
Suitable screw: M5, Tightening torque: 3 N•m ±10%
•Screws should be prepared by the user.
•Refer to the dimension drawing (page 59) for the diameter and depth of the mounting screw holes.
■Piping
•Use the correct tightening torque: 20 to 25 N•m
•If the tightening torque is exceeded, the product can be damaged.
•If the tightening torque is insufficient, the connection threads and brackets may become loose.
•Avoid any sealing tape getting inside the flow path.
•Confirm that there is no leakage after piping.
•When attaching a fitting, the attachment to attach the fitting should be held with a wrench.
Holding other parts with a wrench may damage the product.

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No.PS※※-OMY1006-B
■Wiring
○Wiring connections
•Connections should only be made with the power supply turned off.
•Use a separate route for the product 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 a switch-mode power supply is connected for use, switching noise will be superimposed and it
will not be able to meet the product specifications. 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 a series
power supply.
○Plugging and unplugging of the connector
•Align the lead wire connector with the connector key groove on the controller, 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 unplug the connector, loosen the knurled part and pull it straight out.
Connector pin numbers (lead wire)
Pin number
Colour
Details
Function
1
Brown
DC(+)
24 VDC
2
White
Analogue input
Analogue voltage/current input
3
Blue
DC( - )
0 V
4
Black
OUT1
Switch output
5
Grey
Analogue output
Analogue voltage/current output

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No.PS※※-OMY1006-B
■Internal circuit and wiring examples
○Output specifications
The colours of the wires shown in the circuit diagram (brown, blue, black, white, and grey) apply when the
SMC lead wire with M12 connector (product number: EX500-AP###-#) is used.
When PNP open collector is selected
Max. 80 mA
Residual voltage: 1.5 V or less
Analogue voltage input/output type: Analogue input: 0 to 5 V (0 to 10 V) input
Input impedance: approx. 1 MΩ
Analogue output: 1 to 5 V (0 to 10 V) output
Output impedance: approx. 1 kΩ
Analogue current input/output type: Analogue input: 4 to 20 mA input
Input impedance: approx. 50 Ω
Analogue output: 4 to 20 mA output
Max. load impedance: 600 Ω
Min. load impedance: 50 Ω
When NPN open collector is selected
Max. 30 V, 80 mA
Residual voltage: 1.5 V or less
Analogue voltage input/output type: Analogue input: 0 to 5 V (0 to 10 V) input
Input impedance: approx. 1 MΩ
Analogue output: 1 to 5 V (0 to 10 V) output
Output impedance: approx. 1 kΩ
Analogue current input/output type: Analogue input: 4 to 20 mA input
Input impedance: approx. 50 Ω
Analogue output: 4 to 20 mA output
Max. load impedance: 600 Ω
Min. load impedance: 50 Ω

-17-
No.PS※※-OMY1006-B
Outline of Settings
Power is supplied
The product code is displayed for approximately 3 sec. after power is supplied. Then, measurement
mode is displayed.
: The switch operation starts within approximately 0.2 seconds after power is supplied.
[Initial Settings]
(Refer to page 19)
Set the reference condition, flow rate display unit, pressure display unit and
switch output PNP/NPN switch.

-18-
No.PS※※-OMY1006-B
[Measurement mode]
In this mode, flow rate control and display and switch operations are performed in accordance with
commanded flow rates.
This is the basic mode; other modes should be selected for set-point changes and other function
settings.
Measurement mode screen
Sub display
In measurement mode, the content of the sub display can be switched by pressing the UP or
DOWN button.
:An arbitrary display method can be added using [F10] Sub display settings.
Press the SET button for
at least 1 second but no
more than 3 seconds.
[Function Selection Mode]
The settings of each function
can be changed.
(Refer to page 21)
[Other Settings]
•Zero-clear
•Key-lock
(Refer to page 41)
: Output continues during setting.
: If a button operation is not performed for a set period of time during setting, the display will flash. (This is to prevent the setting from
remaining incomplete if, for instance, an operator were to leave during setting.)
Zero-clear of the secondary pressure value
When the secondary side is released to the atmosphere and the displayed secondary pressure value
is not zero, perform zero-clear.
Refer to page 41 for details of this operation.

-19-
No.PS※※-OMY1006-B
Initial Settings
Configure the reference condition, flow rate display unit, pressure display unit and switch output PNP/NPN
switch.
Reference condition
Standard condition or normal condition can be selected for the standard reference condition of flow rate.
Standard condition and Normal reference condition are defined as follows:
•Standard condition: flow rate converted into volume at 20 °C and 101.3 kPa (absolute pressure)
•Normal condition: flow rate converted into volume at 0 °C and 101.3 kPa (absolute pressure)
Units selection function
The flow rate display units selection function allows for selecting L/min or cfm (ft3/min) as the standard unit.
The pressure units selection function allows for selecting kPa, MPa, kgf/cm2, bar, or psi as the standard unit.
This setting is only available for models with the units selection function.
Switch output type
The switch output function can be toggled between PNP and NPN output.
Measurement mode
[F 0] Display the reference condition, flow rate display unit, pressure display unit and
switch output PNP/NPN switch.
Press the SET button. Move on to reference condition setting.
Reference condition setting
Standard condition or normal condition can be selected as the reference
condition.
Press the UP or DOWN button to select a reference condition.
Press the SET button. Move on to flow rate display unit setting.
Flow rate display unit setting
Press the UP or DOWN button to select a flow rate unit.
: Only Lcan be selected if the product does not have the units selection function.
Press the SET button. Move on to pressure display unit setting.
Press the SET button for at least 1 second but
no more than 3 seconds.