SMC Networks INR-244-757 User manual

HEC-OM-P008
2011 Oct.
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PRODUCT NAME
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Thermo Electric Bath
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MODEL / Series / Product Number
INR-244-757
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To the customers
Thank you for purchasing our Thermo Electric Bath (hereinafter called “product”).SMC always strives to
provide the highest quality and high-performance temperature control devices to our customers by utilizing
our original technology.
For the long-term and safe use of this product, be sure to read and understand this Operating Manual
(hereinafter called “this manual”) thoroughly before use. Also, keep this manual available whenever
necessary.
The contents of this manual may be changed for the improvement of the customer service.
1) When the product is received, check the contents of the package immediately.
Packaging content
Item Qty.
1 Thermo Electric Bath 1 pc
2 Power supply cable 1 pc
3 Drain tube (with CPC fitting) 1 pc
2) Observe the warnings and precautions defined in this manual.
3) This manual provides explanations of the installation and operation of this product. Only those who
have a thorough understanding of the operating procedures and who have basic knowledge and skills
in handling industrial equipment are qualified to perform installation and operation.
4) The contents of this manual and the related documents supplied with this product shall be neither
regarded as a provision of the contract nor utilized to correct or modify the existing agreements,
commitments and relations.
5) Copying, duplicating or transferring any part or the entirety of this manual without the prior permission
of SMC is strictly prohibited.
6) The product is designed for use of industrial applications and research facilities of science. When it is
used for applications that require the consideration additional safety precautions, e.g., for medical
devices, investigate the safety needs for the application at the customer’s site before use.

HEC-OM-P008
Table of Contents
1
Table of Contents
Chapter 1 Safety Instructions ...............................................................1-1
1.1 Dangers, Warnings, and Cautions Used in This Manual........................................1-1
1.1.1 Hazard Levels........................................................................................................................ 1-1
1.1.2 Definitions of “Serious injury” and “Minor injury” ................................................................... 1-2
1.1.3 Symbols ................................................................................................................................. 1-2
1.2 Warning labels and Caution label.............................................................................1-4
1.2.1 Location of Warning label and Caution label ......................................................................... 1-4
1.3 Location of Model No. label ......................................................................................1-4
1.4 Safety Measures.........................................................................................................1-5
1.4.1 Precautions............................................................................................................................ 1-5
1.4.2 Protective Equipment............................................................................................................. 1-6
1.4.3 Long-term Storage ................................................................................................................. 1-6
1.4.4 Disposing of Product.............................................................................................................. 1-7
1.5 Precaution for running (safety interlock) ................................................................1-7
Chapter 2 Description and Function of Each Part ..............................2-1
2.1 Description of Thermo Electric Bath........................................................................2-1
2.2 Description of detail functions .................................................................................2-2
2.2.1 High/Low Temp. Alarm Function............................................................................................ 2-2
2.2.2 Offset Function....................................................................................................................... 2-2
2.2.3 Set Value Memory (EEPROM back-up) ................................................................................ 2-3
2.2.4 Alarm Stop Function .............................................................................................................. 2-3
2.2.5 Controller Alarm ..................................................................................................................... 2-4
2.2.6 Serial Communication Function............................................................................................. 2-4
Chapter 3 Transporting and Installation ..............................................3-1
3.1 Transporting...............................................................................................................3-1
3.2 Installation..................................................................................................................3-2
3.2.1 Installation Conditions............................................................................................................ 3-2
3.2.2 Installation in Clean Room..................................................................................................... 3-3
3.2.3 Pollution Degree .................................................................................................................... 3-3
3.2.4 Ventilation requirement .......................................................................................................... 3-4
3.3 Wiring..........................................................................................................................3-5
3.3.1 Power Source Specification................................................................................................... 3-5
3.3.2 Power Supply Cable and Connector ..................................................................................... 3-5
3.3.3 Grounding .............................................................................................................................. 3-6
3.3.4 Alarm output and Communication Connectors...................................................................... 3-6
3.4 Bath Liquid .................................................................................................................3-7
3.4.1 Preparation of Bath Liquid ..................................................................................................... 3-7
3.4.2 Filling Bath Liquid .................................................................................................................. 3-8

HEC-OM-P008
Table of Contents
2
Chapter 4 Startup................................................................................... 4-1
4.1 Turning ON Power......................................................................................................4-1
4.2 Setting of Values........................................................................................................4-1
4.3 Cautions for Operation..............................................................................................4-2
Chapter 5 Operation ..............................................................................5-1
5.1 Operation of Controller .............................................................................................5-1
5.1.1 Details of Controller................................................................................................................ 5-1
5.1.2 Setting of Data........................................................................................................................ 5-2
5.1.3 Selection of Operation Mode.................................................................................................. 5-3
5.1.4 Details of Operation Mode ..................................................................................................... 5-4
5.1.5 Selection of Setting Mode ......................................................................................................5-6
5.1.6 Selection of key lock Setting Mode ........................................................................................ 5-7
5.1.7 Details of key lock Setting Mode ............................................................................................ 5-7
5.1.8 Selection of Control Setting Mode ......................................................................................... 5-8
5.1.9 Details of Control Setting Mode ............................................................................................. 5-9
5.1.10 Selection of Communication Setting Mode .......................................................................... 5-11
5.1.11 Details of Communication Setting Mode..............................................................................5-12
5.1.12 Initial Value and Setting Range for Each Mode ...................................................................5-13
5.2 Alarms.......................................................................................................................5-14
5.2.1 Content of Alarms................................................................................................................. 5-14
5.2.2 Troubleshooting....................................................................................................................5-15
Chapter 6 Maintenance.......................................................................... 6-1
6.1 Regular Maintenance.................................................................................................6-1
6.1.1 Draining the Bath Liquid......................................................................................................... 6-2
6.1.2 Check the strainer and clean the bath ................................................................................... 6-2
6.1.3 Cleaning the air filter .............................................................................................................. 6-3
6.2 Before returning the product....................................................................................6-3
Chapter 7 Appendix...............................................................................7-1
7.1 Outline Dimensions...................................................................................................7-1
7.2 Specifications.............................................................................................................7-2
7.3 Performance Chart.....................................................................................................7-3
7.3.1 Cooling Capacity .................................................................................................................... 7-3
7.3.2 Heating Capacity.................................................................................................................... 7-3
7.4 Calculation of Dew Point Temperature ....................................................................7-4
Chapter 8 Warranty................................................................................8-1
8.1 Limited warranty and Disclaimer/Compliance Requirements ...............................8-1
8.2 Compliance Requirements........................................................................................8-2

HEC-OM-P008
Chapter 1 Safety Instructions
1.1 Dangers, Warnings, and Cautions Used in This Manual
1-1
Chapter 1 Safety Instructions
1.1 Dangers, Warnings, and Cautions Used in This
Manual
1.1.1 Hazard Levels
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.”
DANGER, WARNING and CAUTION signs follow this order according to
hazard severity (DANGER > WARNING > CAUTION).
They are all important notes for safety and must be followed in addition to
International Standards (ISO/IEC)*1) , and other safety regulations.
*1) IEC 60204-1: Safety of machinery -- Electrical equipment of machines
(Part 1: General requirements)
ISO 10218-1: Manipulating industrial robots -Safety.
etc.

[Tips]
Tips are provided when there is information and content
that personnel are required to be aware of and refer to
for product operation and maintenance of this product.
Be sure to thoroughly read and understand the important precautions
defined in this manual before using this product.
"DANGER" denotes that there is an imminent hazard which will cause serious
personal injury or death during operation.
"WARNING" indicates a hazard with a medium level of risk which, if not avoided,
couldresult in death or serious injury.
"CAUTION" indicates a hazard with a low level of risk which, if not avoided, could
resultin minor or moderate injury.
"CAUTION" without an exclamation point denotes that there is a hazard which may
cause damage to or the failure of the system, facility, or devices.

HEC-OM-P008
Chapter 1 Safety Instructions
1.1 Dangers, Warnings, and Cautions Used in This Manual
1-2
1.1.2 Definitions of “Serious injury” and “Minor injury”
“Serious injury”
This term describes injuries such as the loss of eyesight, wounds, burns,
frostbite, electric shock, fractures, and toxicity that leave aftereffects, and/or
injury requiring hospitalization and/or a prolonged stay in a hospital.
“Minor injury”
This term describes injuries that do not require hospitalization or a prolonged
stay in a hospital (injuries other than the “serious injuries” described above).
1.1.3 Symbols
This manual provides the following symbols in addition to “Danger”,
“Warning”, and “Caution” to present warning details in an easy-to-understand
manner.
Symbol of electrical hazard
Symbol of heat hazard
Symbol of low temperature hazard
This symbol warns you of potential burns.
This symbol warns you of potential frostbite.
This symbol warns you of potential electrical shock.

HEC-OM-P008
Chapter 1 Safety Instructions
1.1 Dangers, Warnings, and Cautions Used in This Manual
1-3
Symbol for corrosion
Symbol for inhalation
“Don’t” Symbol
“Do” Symbol
This symbol denotes actions which you must not
perform in the operation of this product.
This symbol denotes actions which you must
perform and items you must observe in the
operation of this product.
This symbol warns of chemical corrosion. When
handling chemical fluids, read the MSDS carefully
and use appropriate protective equipment.
This symbol warns of chemical inhalation. When
handling chemical fluids, read the MSDS carefully
and use appropriate protective equipment.

HEC-OM-P008
Chapter 1 Safety Instructions
1.2 Warning labels and Caution label
1-4
1.2 Warning labels and Caution label
Warning label and Caution label are applied to the sections of this product in
which potential hazards are present during system operation and
maintenance. Warning label and Caution label are presented in sizes and
colors that will get the attention of the worker. They contain symbols in
addition to the descriptions of warnings.
1.2.1 Location of Warning label and Caution label
1.3 Location of Model No. label
zDo not peel off or deface the Warning label and Caution label.
zConfirm the location of the Warning label and Caution label.
zRead the contents of the Warning label and Caution label carefully
and keep them in mind.
zUsers are NOT allowed to change the location of the Warning label
and Caution label. If replacing a peeled off or worn out label, affix
the new label to exactly the same location as the replaced label.
Fig 1-2 Detail of Warning label and Caution label
Fig 1-3 Position of Model No. label Fig 1-4 Detail of Model No. label
Fig 1-1 Position of Warning label and
Caution label
Warning label and Caution label
Model No. label

HEC-OM-P008
Chapter 1 Safety Instructions
1.4 Safety Measures
1-5
1.4 Safety Measures
1.4.1 Precautions
This product is designed with consideration for safety. However, misuse or
disregard of any contents in this manual may result in electrical shock or other
accidents.
Be sure to keep the following instructions in mind to prevent accidents.
zThe 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.
zBe sure that you understand how the chemical fluids use in this
product affect the human body. Follow the MSDS when handling
chemical fluids.
zRead the precautions described in this manual carefully and keep
them strictly.
zStop operation immediately after any abnormal occurrence.
If an abnormality (noise, odor, smoke, water leakage, etc.) occurs,
stop this product (cutoff the power supply).
Abnormal noise,
odor, smoke or
water leakage
occurs;
1) Cutoff power supply
2) Request repair
zDo not disassemble or retrofit this product.
The internal parts of this product cannot be retrofitted by the user.
Contact the sales distributor or branch for all repairs. The user
must not perform any repairs. A product repaired by the user
cannot be guaranteed and carries the danger of causing electrical
shock and other acci
dents.
zThe 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.

HEC-OM-P008
Chapter 1 Safety Instructions
1.4 Safety Measures
1-6
1.4.2 Protective Equipment
Protective
goggles
Mask Gloves Safety
shoes
Fig 1-5Protective equipment
1.4.3 Long-term Storage
zWear protective equipment in order to maintain safety when
installing and/or handling the product.
When handling chemicals for the product especially, note the
contents of the MSDS and wear protective goggles, gloves, and a
mask.
zTouching the bath liquid and internal face of the liquid bath may
cause burns or frostbite depending on the temperature set for this
product. Be sure to use heat (cold) resistant gloves when handling
this product.
zCutoff the power supply and completely remove the bath liquid
from the liquid bath. Also, do not allow foreign matter to enter the
inside of the bath.
zKeep within the margin of safety in relation to cooling and heating
capacity.
zWhen restarting the power supply, wait 3 sec or more after the
indications on the display and operating panel disappear.

HEC-OM-P008
Chapter 1 Safety Instructions
1.5 Precaution for running (safety interlock)
1-7
1.4.4 Disposing of Product
The product contains electric circuit and components. When you dispose the
product, please follow your local laws and regulations regarding disposal of
electronic waste.
1.5 Precaution for running (safety interlock)
The product equips following device to prevent unexpected dangerous
situations.
Please remove the cause of the failure when you restart the product.
Table 1-1 Interlock list
No. Content Installation part Cause Status of product
after interlock works
1 Circuit protector to
detect over current AC power input Cut of all AC power
2 Overheat in heat
exchanger Heat exchanger Detects overheat in heat exchanger.
3 Overheat in heat sink Heat sink Detects overheat in heat
sink.
4 Low liquid bath level Reservoir Detects lowering of liquid
bath level.
5 Detection of breakage
of temp. sensor Controller
Detects breakage and
short circuit of
temp.sensor and cable.
Temperature control is
stopped.
ALARM LED (red)
lights up.

HEC-OM-P008
Chapter 2 Description and Function of Each Part
2.1 Description of Thermo Electric Bath
2-1
Chapter 2 Description and Function of
Each Part
2.1 Description of Thermo Electric Bath
Table 2-1 Thermo Electric Bath
No. Description Function
①Operation and display panel Various displays are shown and settings are input.
②Circuit protector
(Power switch) Power ON/OFF switch with current protection.
③Power supply connector
(AC)
Connector for the single phase AC (AC100 to 240V) power
supply. Refer to page 3-5 “3.3.2 Power Supply Cable and
Connector”.
④Liquid Bath Vessel to store the liquid.
⑤Air filter Filter not to allow dust to enter easily inside.
⑥Alarm output connector
(ALARM)
Connector for the Alarm signal.
The relay contact is opened when these alarms are output.
⑦Communication connector
(COMMUNICATION) Connector for communication with RS-232C.
⑧RUN LED (Green) Lights up while the product is running.
⑨ALARM LED (Red) Lights up when an abnormality occurs. For details, refer to page
5-14 “5.2.1 Content of Alarms”, Table 5-3.
⑩Drain Port Drain the bath liquid.
Refer to page 6-2 “6.1.1 Draining the Bath Liquid”.
⑪ Strainer
(Perforated Metal Φ1) Filtration of cicurated bath liquid.
Fig 2-1 Thermo Electric Bath
③
⑦
⑥
①⑧⑨②④
⑩
⑤
⑪

HEC-OM-P008
Chapter 2 Description and Function of Each Part
2.2 Description of detail functions
2-2
2.2 Description of detail functions
The product controls the liquid temperature in the bath.
In addition to the main function, following functions are available to
supplement the main temperature control function and the safe operation.
2.2.1 High/Low Temp. Alarm Function
This function generates an alarm when the measured temperature deviates
from the set temperature by an amount outside of that defined as the high or
low limit deviation. In that case, the AL1 LED of the controller lights up and
the alarm is generated via relay contact to a pin for the High/low Temp. alarm
of the alarm output connector. After the measured temperature returns to
within the high or low deviation, the alarm will be reset automatically. In its
initial setting, the alarm comes on immediately after the power supply is
turned on when the temperature at that time deviates from the set
temperature by an amount outside of the high or low deviation limit.
Fig 2-2 Operation and display panel
2.2.2 Offset Function
The temperature sensor can be calibrated by inputting offset (calibration
value) between the temperatures of a standard thermometer and the
temperature sensor in the product.
[Tips]
The Controller has already set the calibration value of 25deg.C independently
by factory setting.
PV
SV
AL2 COM RDY DIAL1
OUT2
●
●
●OUT1
●● ●●
MODE FUNC
This LED lights up when the High/Low
Temp. alarm occurs.

HEC-OM-P008
Chapter 2 Description and Function of Each Part
2.2 Description of detail functions
2-3
2.2.3 Set Value Memory (EEPROM back-up)
This function memorizes all set values input via the operation and display
panel to nonvolatile memory EEPROM as back-up. Even if the power supply
is turned off, the settings remain and do not need to be reset when the power
supply is restarted.
2.2.4 Alarm Stop Function
The product stops operation when a serious abnormality occurs.
The ALARM LED lights up and the alarm signal is output via relay contact
from the alarm output connector. The alarm can be reset by turnning ON/OFF
the AC Power.
The alarm occurs typically caused by following case.
①Overheating of Liquid Tank (Thermostat is activated).
②Overheating of Heatsink (Thermostat is activated).
③Lowering of Controller output voltage.
④Lowering Bath Liquid level.
zAny set value input via the communication function is not stored.
If they need to be stored, use a storage command.
zThe overwrite limit is approx. 0.1 million times.
If the setting is performed via the communication function, pay
attention to how many times the overwrite has been done.

HEC-OM-P008
Chapter 2 Description and Function of Each Part
2.2 Description of detail functions
2-4
2.2.5 Controller Alarm
When an error in the controller occurs, the product stops operation and
display following error code. The error can be reset by the AC power ON/OFF.
In case it cannot be reset by the AC power ON/OFF, it must require the
product repair.
Table 2-2 Indication of alarms on operation and display panel
Indicator Content of alarm
Shown when a temperature sensor is opened.
Shown when a temperature sensor is short
circuited.
Shown when the Controller has a memory error.
Shown when the Controller has an A/D conversion
error.
2.2.6 Serial Communication Function
This product has a serial communication function conforming to
communication protocol.
The contents of then serial communication on this product are as follows.
1) Setting and reading of target temperature
2) Reading of measured temperature
3) Setting and reading of offset value
4) Storage command of set value (Any set value input via the communication
function is stored in the volatile memory. If they need to be stored in
nonvolatile memory, use a storage request command.)
PV
SV
PV
SV
PV
SV
PV
SV

HEC-OM-P008
Chapter 3 Transporting and Installation
3.1 Transporting
3-1
Chapter 3 Transporting and Installation
3.1 Transporting
zProper procedure must be followed when using this product.
Exercise caution to assure personal safety during the installation,
transporting operation, maintenance, and inspection of the system.
zOnly 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.
zContact 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, safety equipment or other applications
unsuitable for the standard specifications described in the product catalog.
3.
A
n application which could have negative effects on people, property, or
animals requiring special safety analysis.
zAvoid strong vibrations and impacts
This product is precision equipment and must not be subject to
strong vibration and impact during transport.

HEC-OM-P008
Chapter 3 Transporting and Installation
3.2 Installation
3-2
3.2 Installation
3.2.1 Installation Conditions
The product is designed for indoor use.
zEnvironments containing splashing water, salt water, oil, or various
chemicals (including chemical mists).
zEnvironments containing particles and dust.
zEnvironments containing corrosive gas, solvents and flammable gas.
zEnvironments containing direct sunlight and radiant heat.
zEnvironments having ambient temperatures over the following range:
Operation10 to 35 deg.C
Storage 0 to 50 deg.C
(with no liquid in the tank)
zEnvironments having ambient humidity over the following range:
Operation35 to 80%
Storage 35 to 85%
zEnvironments with sharp temperature changes.
zEnvironments generating strong magnetic noise (having a strong
electric or magnetic field that generates surges.)
zEnvironments generating electrical static discharge and conditions in
which static electricity is applied to this product.
zEnvironments generating strong high frequency radiation (including
radio frequency appliances such as mobile phones and transceivers).
zEnvironments generating strong vibrations and impacts.
zEnvironments that may be damaged by lightning.
zAltitude limit: 2000m
zDo not use this product in the following environments, where the
product may not work normally and may be damaged.
zKeep enough open space to access any AC power switch and cable
connections.
zKeep enough ventilation for liquid vapor.
zThis product should be installed on a vibration-free stable level
place
zThe mounting orientation of this product is horizontal.
zPlace the product in a flat area which can handle its weight and take
measures to prevent the tipping of the product. If installed
improperly, the product might leak water or topple, resulting in
injury.

HEC-OM-P008
Chapter 3 Transporting and Installation
3.2 Installation
3-3
zEnvironments in which forces or gravity may deform the body of the
product.
zLocating the cables of the product near the power lines of other
machines.
zConditions in which insufficient grounding for the power supply is
provided
zConditions that cause dew condensation.
zEnvironments containing harmful gases such as silicone.
zPlaces preventing the horizontal set-up of the product.
3.2.2 Installation in Clean Room
This product uses a fan and generates dust. When it is set up and operated in
a clean room, take appropriate preliminary measures for dust.
3.2.3 Pollution Degree
The pollution degree is a classification from 1 to 4 degrees depending on the
pollution present in the air. This product is suitable for environments with a
pollution degree of 1 or 2.
Table 3-1 Thermo Electric Bath specifications
Degree 1 There is no pollution or only dry and nonconductive pollution occurs. An example of an environment of this degree is a clean room or a place using an
air cleaner.
Degree 2
Normally, only nonconductive pollution occurs. The pollution may become
conductive temporarily because of dew condensation.
An example of an environment of this degree is a place where electric equipment
can operate normally, such as a working office or a control panel.
Degree 3 Conductive pollution or dry and nonconductive pollution which can become conductive when dew condensation occurs. An example of an environment of this
degree is a factory.
Degree 4 Conductive pollution that holds its conductivity due to conductive dust, rain or
snow. An example of an environment of this degree is the outdoors.
This product can be used only in environments with a pollution degree
of 1 or 2.

HEC-OM-P008
Chapter 3 Transporting and Installation
3.2 Installation
3-4
3.2.4 Ventilation requirement
Fig3-1 Installation environment
200mm or more
200200
Keep open area for ventilation