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Yamato CFA302 Instruction Manual

Precision closed cooling circulator neo cool circulator
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Precision Closed Cooling Circulator
Neo Cool Circulator
Model
Instruction Manual
 Thank you for purchasing " Neo cool Circulator,
CFA302" of Yamato Scientific Co., Ltd.
 To use this unit properly, read this "Instruction
Manual" thoroughly before using this unit.
Keep this instruction manual around this unit for
referring at anytime.
WARNING!:
Carefully read and thoroughly understand the
important warning items described in this
manual before using this unit.
Yamato Scientific Co. LTD.
CFA302
- Second Edition -
This paper has been printed on recycled paper.

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  • Page 1 Instruction Manual - Second Edition -  Thank you for purchasing " Neo cool Circulator, CFA302" of Yamato Scientific Co., Ltd.  To use this unit properly, read this "Instruction Manual" thoroughly before using this unit. Keep this instruction manual around this unit for referring at anytime.

  • Page 3: Table Of Contents

    Contents Cautions in Using with Safety ............... 1   Explanation ........................1  Table of Illustrated Symbols ..................2  Fundamental Matters of "WARNING!" and "CAUTION!" ..........3 Before Using This Unit ................4   Requirements for Installation ..................4 ...

  • Page 4: Cautions In Using With Safety

    Cautions in Using with Safety Explanation MEANING OF ILLUSTRATED SYMBOLS Illustrated Symbols Various symbols are used in this safety manual in order to use the unit without danger of injury and damage of the unit. A list of problems caused by ignoring the warnings and improper handling is divided as shown below.Be sure that you understand the warnings and cautions in this manual before operating the unit.

  • Page 5: Table Of Illustrated Symbols

    Cautions in Using with Safety Table of Illustrated Symbols Warning Warning, Warning, Warning, Warning, Warning, generally high voltage high temperature drive train explosive Caution Caution, Caution, Caution, Caution, Caution, generally electrical shock scald no road heating not to drench Caution, Caution, water only deadly poison...

  • Page 6: Fundamental Matters Of "Warning!" And "Caution

    Cautions in Using with Safety Fundamental Matters of "WARNING!" and "CAUTION!" WARNING! Do not use this unit in an area where there is flammable or explosive gas Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion- proof.

  • Page 7: Before Using This Unit

    Before Using This Unit Requirements for Installation WARNING! 1. Always ground this unit ・ Never fail to connect the earth wire (green core wire of the power cord) to the ground wire or to the ground terminal to prevent an electrical shock due to earth leakage. ・...
  • Page 8 Before Using This Unit Requirements for Installation 3. Do not use this unit in an area where there is flammable or explosive gas  Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion-proof. An arc 爆発性ガス...
  • Page 9 Before Using This Unit Requirements for Installation CAUTION! 5. Installation on horizontal surface  Place this unit as flat a place as possible. If the casters are not in uniform contact with the floor surface, noise or vibration may result. Additionally, the unit may cause a problem or malfunction.
  • Page 10 Before Using This Unit Requirements for Installation 7. Handling of power code  Do not entangle the power cord. This will cause overheating and possibly a fire.  Do not bend or twist the power cord, or apply excessive tension to it. This may cause a fire and electrical shock.
  • Page 11 Before Using This Unit Requirements for Installation 9. About selecting a circulating fluid ・Select a circulating fluid according to the working temperature. Set temperature + 10°C or over: Tap water or soften tap water Set temperature + 10°C or below: Antifreezing fluid (We recommend Nybrine,please dilute by adding tap water.

  • Page 12: Installation Procedure

    Before Using This Unit Installation Procedure Release the stopper lock of the casters. Release Push down the stopper button of the casters as lock shown in the right figure. It will be unlocked. (Only the two casters on the front side of the unit are equipped with a caster.) stopper lock...
  • Page 13 Before Using This Unit Installation Procedure Precautions about the circulating path  Carefully check the direction of circulation, and connect the hoses properly. Improper connection results in an accident or malfunction of the unit and the circulating path.  Minimize the length of the circulating path. If resistance inside the piping increases, the quantity of circulating fluid decreases, resulting in lower cooling efficiency.

  • Page 14: Description And Function Of Each Part

    Description and Function of Each Part Main Unit Front view Rating notice sticker Serial number label Earth leakage breaker(20A) Control panel Condenser filter Caster (Two front casters have stopper) Rear view Discharge port (IN) (Size φ14) Return port (OUT) (Size φ14) Temperature output terminal (RS485 communication function) Overflow / Drain cock...

  • Page 15: Control Panel

    Description and Function of Each Part Control Panel ⑦ ⑫ ⑧ ⑨ ⑩ ⑬ ⑪ ⑭ ④ ① ⑤ ② ③ ⑥ ⑮ Name Function ① Starts/stops the operation. RUN/STOP Key： ② ▲▼ Key： Uses for rising UP/lowering DOWN the setting value. ③...

  • Page 16: Operation Monitor

    Description and Function of Each Part Operation Monitor ① ③ ② ④ Name Function ① Refrigerator Error Lamp Lights when the refrigerator is overloaded. ② Error Lamp Lights when the water level of circulation fluid declines or the coolant water pressure of the refrigerator declines. ③...

  • Page 17: Characters Of The Controller

    Description and Function of Each Part Characters of the Controller The characters controller shows are as follows: Character Identifier Name Purpose Used for setting the fixed temperature Fixed Temperature Setting Mode operation. Temperature Setting Used for setting the temperature. AStP Auto Stop Setting Used for setting the auto stop operation.

  • Page 18: Operation Mode And Function List

    Operation Method Operation Mode and Function List The operation modes of this unit are as follows; Name Description Page Continuous operation at set temperature. TEMP TIME SV: Set Temp TEMP Fixed Temperature Operation Indication Temperature TIME RUN/STOP key RUN/STOP key Automatic stop during fixed temperature operation.
  • Page 19 (workstation PC) to monitor measured temperature or to perform remote operation. Communication conforms to RS-485 interface. For conversion from RS-232/USB to RS-485 interface, RS485 Communication Function an optional RS485-RS232C (USB) translation adaptor is required. Simplified communication program is available on our web site. http://www.yamato-net.co.jp/support/program/index.htm...

  • Page 20: Operation Mode, Function Setting Key, And Characters

    Operation Method Operation Mode, Function Setting Key, and Characters The operation mode setting and function setting use the key operation and characters show in the following figure.

  • Page 21: Setting Of Overheating Prevention Device

    Operation Method Setting of Overheating Prevention Device Setting range/function The overheat prevention device temperature setting range is from 0°C to 50°C beyond the maximum temperature setting for this unit. When in-bath temperature exceeds objective temperature setting and reaches that of the overheat prevention device, the heater circuit is shut off and error code "Er19"...

  • Page 22: Fixed Temperature Operation

    Operation Method Fixed Temperature Operation Fixed temperature 1. Turn on the power (turn on the breaker in front)  Current version of the software is displayed for about five seconds operation procedure after turning on the power. The screen then displays the initial setting.
  • Page 23 Operation Method Fixed Temperature Operation 4. Start operation  Press the orange RUN/STOP key for about one second. The unit starts operation and the blinking FIXED TEMP lamp lights 5. Stop operation  Press the orange RUN/STOP key for about one second. The unit stops operation and the FIXED TEMP lamp lights off.

  • Page 24: Quick Auto Stop Operation

    Operation Method Quick Auto Stop Operation This operation is used to specify the period up to automatic stop, Quick auto stop i.e., sets the auto stop timer during operation. operation procedure 1. Set the time up to stop during fixed temperature operation ①...

  • Page 25: Auto Stop Operation

    Operation Method Auto Stop Operation It is used when "I want to automatically stop after reaching set temperature from set time". This operation is used to specify the automatic stop time in the Auto stop operation fixed temperature operation. procedure 1.
  • Page 26 Operation Method Auto Stop Operation 2. Start timer operation  Press the RUN/STOP for one second after deciding the time.  Timer operation starts with the AUTO STOP lamp lighting on.  The timer is activated at the point when the temperature in bath (measurement temperature) reaches to the setting temperature.

  • Page 27: Auto Start Operation

    Operation Method Auto Start Operation It is used when "I want to start driving automatically after the set time". Auto start operation 1. Set start time procedure ① Press the TIMER key on the initial screen. The setting temperature display screen displays the character "Astr", which indicates the auto start operation, with blinking.
  • Page 28 Operation Method Auto Start Operation 2. Start timer operation  Press the RUN/STOP for one second after deciding the time.  Timer operation starts with the AUTO START lamp lighting on. 3. Stop/terminate timer operation  The operation starts automatically at setting time. ...

  • Page 29: Calibration Offset Function

    Operation Method Calibration Offset Function Calibration offset is a function which corrects the difference between the temperature in bath and that of controller (sensor temperature) if arises. The function parallel corrects the difference either to the plus or minus side within the whole temperature range of unit. The function can be set or cancelled by the SUB MENU key.

  • Page 30: Lock Function

    Operation Method Lock Function This function locks the operation status previously set. The function can be set or cancelled by the SUB MENU key. ① Press the SUB MENU key. Select the character" "Lock", which indicates the lock of setting value, using the "▲▼", and then press the ENTER key.

  • Page 31: Temperature Output Terminal

    Operation Method Temperature Output Terminal Precautions  Operate this product according to the procedure described in this Operation Manual. Failure to follow the operation procedure described herein may result in a problem. The guarantee will not apply if you operate the product in the wrong manner. CAUTION! ...
  • Page 32 Operation Method Temperature Output Terminal Specification  The voltage (DC) corresponding to the measured temperature is output.  Output temperature range: -15 to 65℃  Output voltage: 4 to 20ｍA DC Temperature Output  Load: 600Ω or bellow (ANALOG)  Resolution: ±1℃ ...

  • Page 33: Rs485 Communication Function

    ・USB-485I from SYSTEM SACOM is recommended. ・Following connection can be made with the optional "external communication adapter (RS485- USB) OIL24" (Workstation PC not included) A sample program is uploaded on our website. http://www.yamato-net.co.jp/support/program/index.htm ■ Communication cable for connection VS6 built-in device Cable 1...

  • Page 34: Data Transmission Method

    Operation Method RS485 Communication Function 2. Data Transmission Method Item Specification Communication standard EIA standard, complying with RS-485 Synchronization method Asynchronous communication method Communication method Half-duplex communication Transmission code ASCII code /19200/38400 Baud rate 2400/4800/9600 Communication distance Max. 500 m (It depends on the effect of the ambient environment.) Network Multi-drop method (up 1:31 stations) Signal wire...
  • Page 35 Operation Method RS485 Communication Function 4. Transmission Control Procedures 4.1 Communication Procedure ・This unit returns a "reply message" to a "request message" from the host computer but does not start transmission. ・This unit does not start communication (no reply) for about four seconds after the power is turned on. Set a delay until communication begins after the power is turned on.
  • Page 36 Operation Method RS485 Communication Function 4.3 Request Message Structures (transmission from the host computer to the unit) 4.3.1 Structure of Read Request Messages ① Start code ② Address □ □ R □ □ □ ③ Request (read) ④ Identifier ① ②...

  • Page 37: Operation Method

    Operation Method RS485 Communication Function 4.4 Reply Message Structures 4.4.1 Reply Messages to Read Request Messages ① Start code ② Address □ □ □ □ □ □ □ □ □ □ ④ Identifier ⑤ Numeric data ① ② ⑧ ④ ⑤...
  • Page 38 Operation Method RS485 Communication Function 4.5 Description of Codes ■ The following codes from ①STX, ②address to ⑩error type are represented by ASCII codes. ■ For ASCII codes, see "8. List of ASCII Codes." ■ For conversion into ASCII codes, see "5. Communication Examples." ①...
  • Page 39 Operation Method RS485 Communication Function ⑦ BCC This is the check code for error detection and takes the exclusive OR (EX-OR) of all characters from STX to ETX. When "Enabled" is selected for BBC check among the communication settings for the unit, this code (BCC) will not be included in the reply message.
  • Page 40 Operation Method RS485 Communication Function Communication Precautions 4.6.1 Transmission timing Set a sufficient response time when using communication to ensure that the host computer is switched from transmission to reception. Refer to the diagram of "4.1 Communication Procedure". 4.6.2 Request interval When transmitting "request message"...
  • Page 41 Operation Method RS485 Communication Function 5. Communication Examples 5.1 Read communication example Example) Request message: A request for reading PV 1 is transmitted to the unit set at address 01. Reply message from the unit to this request message: The data of PV1 12.3℃(00123) is returned. Read request message (transmitted from the host computer) ①...
  • Page 42 Operation Method RS485 Communication Function 5.2 Write communication example Example) Request message: A request for setting "SV1 to 37.0℃" (writing 00370) is transmitted to the unit set at address 01. Reply message from the unit to this request message: Information that the request message has been received is returned.

  • Page 43: Wire Connection

    Operation Method RS485 Communication Function 6. Wire Connection Shown below is an example of multi-drop wire connection. VS6 Built-in Device ID:01 Cable 1 Cable 2 USB-485I CN3-3,4 USB/485 converter (COM port) VS6 controller ID:02 Cable 3 CN3-3,4 VS6 controller Up to 31 stations can be connected.
  • Page 44 Operation Method RS485 Communication Function 7. List of Identifiers/Commands <Identifiers and set values> *1: "_" means a space. *2: When set value is 100 hours or longer, it is set in units of 10 minutes. *3: The W command on the setting screen is invalid. Fixed-value ·...
  • Page 45 Operation Method RS485 Communication Function Other Parameters Name Identifier Command Setting Value 00000：Lock Function oFF Lock Function 00001：Lock Function on 00000：Stop Operation start/stop 00001：Start 00000：Fixed temperature operation Operation type 00001: Timer operation selection ※W command valid only for fixed temperature operation 00000：Time-up Operation step Remaining hour...
  • Page 46 Operation Method RS485 Communication Function 8. List of ASCII Codes ASCII code Symbol ASCII code Numeric ASCII code － Numeric (space) (minus) ASCII code Symbol ASCII code Symbol ASCII code Symbol...

  • Page 47: Cooling Curve, Cooling Capacity Curve (Reference Data)

    Operation Method Cooling curve, cooling capacity curve (reference data) The graphs show the cooling and cooling capacity curves of each model below. Use the values just for reference because they depend on the sample volume, the ambient temperature, etc. Measurement conditions ・Room temp：23℃・Power supply：AC100V ・Frequency:50Hz ・Circulating fluid：Nybrine 50%(Cooling curve),...
  • Page 48 Operation Method Cooling curve, cooling capacity curve (reference data) Measurement conditions ・Room temp：20℃・Power supply：AC100V ・Frequency:50Hz ・Circulating fluid：Nybrine 50% ・Circulating fluid amount：13ℓ ・Fixed position: center in the bath ・Setting temperature: Heating：-15℃ Temperature（℃）...

  • Page 49: Nybrine Freezing Temperature And Viscosity (Reference Data)

    Operation Method Nybrine Freezing Temperature and Viscosity (reference data) You need to use a heat medium for lower temperature when the cooling temperature is set to 10℃ or below. Use an antifreezing fluid having a 10°C lower at least than the working temperature. See “9.

  • Page 50: Handling Precautions

    Handling Precautions WARNING! Substances that cannot be used Never use explosive substances, flammable substances and substances that include explosive or flammable ingredients in this unit. Explosion or fire may occur. (Refer to page59 "List of Dangerous Substances".) If a problem occurs If smoke or strange odor should come out of this unit for some reason, turn off the power key right away, and then turn off the circuit breaker and the main power.
  • Page 51 Handling Precautions Abnormal refrigerator pressure If the refrigerator operates in a high-temperature range, the refrigerator overload relay protecting circuit may work to illuminate Refrigerator error lamp deactivate the refrigerator. In this case, reduce thermal load by changing the fluid, or taking other appropriate measures. Abnormal fluid level Turn off the earth leakage breaker once and check the water amount of the circulating fluid.

  • Page 52: Maintenance Method

    Replacing the hose Replace the hose about once every two years to assure reliable operation of the product. Ask Yamato for replacement of hoses. Periodic replacement of circulating fluid Replace a circulating fluid about once every three month if you use tap water, and if you use Nybrine, replace a circulating fluid about every six month.

  • Page 53: Cleaning The Filter

    Maintenance Method Daily Inspection and Maintenance Cleaning the filter A clogged filter deteriorates cooling performance or causes the refrigerator to malfunction. The clogged state depends on the ambient environment or working period. Clean the filter at regular intervals according to the working conditions. The mesh plate is fixed with a magnet.

  • Page 54: Long Storage And Disposal

    Long storage and disposal When not using this unit for long term / When disposing Caution Warning When the unit is not going to be used for a long When you are going to discard the product ● The unit uses replacing Fluorocarbon. time ●Turn the ELB to off and take off power supply Ask a professional for disposal of Fluorocarbon...

  • Page 55: In The Event Of Failure

    In the Event of Failure… Abnormality detection and Error Code The unit has an abnormality detection function. When an abnormality occurs, the alarm lamp on the control panel illuminates, an error code is displayed, and an alarm sounds. Note that a temperature gauging error will be indicated by displaying dashes on screen.

  • Page 56: Trouble Shooting

    In the case if the error other than listed above occurred, turn off the power switch and primary power source immediately. Contact the shop of your purchase or nearest Yamato Scientific Service Office.

  • Page 57: After Service And Warranty

    Warranty card will be handed by dealer or Yamato personnel upon delivery and installation, or will be attached to equipment if no one from dealer or Yamato is to be present at delivery and installation. Register warranty card at https://www.yamato-net.co.jp/support/warranty.htm ...

  • Page 58: Specification

    Specification Product Name Neocool Circulator Model CFA302 Circulation unit External sealed unit circulation Usable ambient temp. 5℃～35℃ Temperature control -10℃～60℃ range Temperature setting -15℃～65℃ range Temperature distribution JTM K05 ±0.1℃ at20℃ accuracy ±0.3℃ at20℃ Temperature incline Cooling capacity Approx.370W at10℃...

  • Page 59: Wiring Diagram

    Wiring Diagram CFA302 Temperature output (4-20mA) RS485 communication Symbol Part name Symbol Part name Earth leakage breaker Overload relay Terminal block Operation condenser Terminal block Start condenser Terminal block Start relay Heater Magnet pump Operation display board Current transformer Relay (refrigerator)

  • Page 60: Piping Diagram

    Piping Diagram Return 戻り口 オーバーフロー Overflow H Bypass Hﾊﾞｲﾊﾟｽ ﾎﾟﾝﾌﾟ Pump 吐出口 Discharge 外部装置（密閉系） External device 排水コック Drain cock (sealed system) Main unit 本体...

  • Page 61: Replacement Parts Table

    Replacement Parts Table Part Name Code No. Specification Manufacturer 9×12×0.5m Silicon hoses 3040010002 Yamato Scientific (Drain, overflow) CFA3241300 CFA32-41300 Filter Yamato Scientific...

  • Page 62: Reference

    Reference List of Dangerous Substances Never process any explosive, flammable samples and also samples contained with those substances. ①Nitroglycol, Glycerine trinitrate, Cellulose Nitrate and other explosive nitrate esters ②Trinitrobenzen, Trinitrotoluene, Picric Acid and other explosive nitro compounds ③Acetyl Hydroperoxide, Methyl Ethyl Ketone Peroxide, Benzoyl Peroxide and other organic peroxides ④Metallic Azide, including Sodium Azide, etc.

  • Page 63: Installation Standard Manual

    Installation Standard Manual * Install the unit according the procedure described below (check options and special specifications separately). Person in charge of installation Person in charge of Model Serial number Date Judgment (company name) installation № Item Method Reference operation manual Judgment Specifications Check the quantities of accessories with...

  • Page 65: Limited Liability

    Be sure to use the unit strictly following the handling and operating instructions in this operating instruction. Yamato Scientific Co., Ltd. assumes no responsibility for an accident or a malfunction caused by use of this product in any way not specified in this operating instruction.

  • Page 66: Third Edition

    Instruction Manual - Third Edition -  Thank you for purchasing " Neo cool Circulator, CFA・CFW" of Yamato Scientific Co., Ltd.  To use this unit properly, read this "Instruction Manual" thoroughly before using this unit. Keep this instruction manual around this unit for referring at anytime.
  • Page 67 Contents Cautions in Using with Safety ....................1   Explanation ........................1  Table of Illustrated Symbols ..................2  Fundamental Matters of "WARNING!" and "CAUTION!" ..........3 Before Using This Unit ......................4   Requirements for Installation ..................4 ...

  • Page 68: Cautions In Using With Safety

    Cautions in Using with Safety Explanation MEANING OF ILLUSTRATED SYMBOLS Illustrated Symbols Various symbols are used in this safety manual in order to use the unit without danger of injury and damage of the unit. A list of problems caused by ignoring the warnings and improper handling is divided as shown below.Be sure that you understand the warnings and cautions in this manual before operating the unit.

  • Page 69: Table Of Illustrated Symbols

    Cautions in Using with Safety Table of Illustrated Symbols Warning Warning, Warning, Warning, Warning, Warning, generally high voltage high temperature drive train explosive Caution Caution, Caution, Caution, Caution, Caution, generally electrical shock scald no road heating not to drench Caution, Caution, water only deadly poison...

  • Page 70: Fundamental Matters Of "Warning!" And "Caution

    Cautions in Using with Safety Fundamental Matters of "WARNING!" and "CAUTION!" WARNING! Do not use this unit in an area where there is flammable or explosive gas Never use this unit in an area where there is flammable or explosive gas. This unit is not explosion-proof.

  • Page 71: Before Using This Unit

    Before Using This Unit Requirements for Installation WARNING! 1. Choose a proper place for installation  Do not install this unit in a place where:  Outdoor.  Rough or dirty surface.  Flammable gas or corrosive gas is generated. ...
  • Page 72 Before Using This Unit Requirements for Installation 3. Do not modify  Modification of this unit is strictly prohibited. This could cause a failure. 改 造 Modification 4. Installation on horizontal surface  Place this unit as flat a place as possible. If the casters are not in uniform contact with the floor surface, noise or vibration may result.
  • Page 73 Before Using This Unit Requirements for Installation CAUTION! 5. Choose a correct power distribution board or receptacle  Choose a correct power distribution board or receptacle that meets the unit’s rated electric capacity. Electric CFA611 200V AC,17A/16.5A Max30A capacity(50/60Hz): CFW611 200V AC,22A Max30A NOTE) There could be the case that the unit does not run even after turning ON the power.
  • Page 74 Before Using This Unit Requirements for Installation 8. Be careful for the colors of core wires when connecting the power cords. Be sure to first make sure that the breaker on the power Core wire facility side is “Off” before connecting the power cords. Indoor wiring color The unit does not have a power plug.
  • Page 75 Before Using This Unit Requirements for Installation 9. About selecting a circulating fluid ・Select a circulating fluid according to the working temperature. Set temperature + 10°C or over: Tap water or soften tap water Set temperature + 10°C or below: Antifreezing fluid (We recommend Nybrine,please dilute by adding tap water.

  • Page 76: Installation Procedure

    Before Using This Unit Installation Procedure Release the stopper lock of the casters. Release Push down the stopper button of the casters as lock shown in the right figure. It will be unlocked. (Only the two casters on the front side of the unit are equipped with a caster.) stopper lock...
  • Page 77 Before Using This Unit Installation Procedure Precautions about the circulating path  Carefully check the direction of circulation, and connect the hoses properly. Improper connection results in an accident or malfunction of the unit and the circulating path.  Minimize the length of the circulating path. If resistance inside the piping increases, the quantity of circulating fluid decreases, resulting in lower cooling efficiency.
  • Page 78 Before Using This Unit Installation Procedure Connection with coolant water hose of refrigerator (CFW611 type only)  Connect with the water service cork accurately. Attach the water service cork and the base cap accurately for leak prevention. 1) Loosen four screws of the base cap. 2) Bolt the screws uniformly while pushing the base cap to the water service cork strongly, and fix it firmly.

  • Page 79: Description And Function Of Each Part

    Description and Function of Each Part Main Unit Front view Rating notice sticker Serial number label Control panel Earth leakage breaker(30A) Condenser filter (CFA611) Caster (Two front casters have stopper) Rear view Discharge port (OUT) (Size Rc3/8) Return port (IN) (Size Rc3/8) Temperature output terminal (RS485 communication function)

  • Page 80: Control Panel

    Description and Function of Each Part Control Panel ⑦ ⑫ ⑧ ⑨ ⑩ ⑬ ⑪ ⑭ ④ ① ⑤ ② ③ ⑥ ⑮ Name Function ① Starts/stops the operation. RUN/STOP Key： ② ▲▼ Key： Uses for rising UP/lowering DOWN the setting value. ③...

  • Page 81: Operation Monitor

    Description and Function of Each Part Operation Monitor ① ③ ② ④ Name Function ① Refrigerator Error Lamp Lights when the refrigerator is overloaded. ② Error Lamp Lights when the water level of circulation fluid declines or the coolant water pressure of the refrigerator declines. ③...

  • Page 82: Characters Of The Controller

    Description and Function of Each Part Characters of the Controller The characters controller shows are as follows: Character Identifier Name Purpose Used for setting the fixed temperature Fixed Temperature Setting Mode operation. Temperature Setting Used for setting the temperature. AStP Auto Stop Setting Used for setting the auto stop operation.

  • Page 83: Operation Mode And Function List

    Operation Method Operation Mode and Function List The operation modes of this unit are as follows; Name Description Page Continuous operation at set temperature. TEMP TIME SV: Set Temp TEMP Fixed Temperature Operation Indication Temperature TIME RUN/STOP key RUN/STOP key Automatic stop during fixed temperature operation.
  • Page 84 PC) to monitor measured temperature or to perform remote operation. Communication conforms to RS-485 interface. For conversion from RS-232/USB to RS-485 interface, RS485 Communication Function an optional RS485-RS232C (USB) translation adaptor is required. Simplified communication program is available on our web site. http://www.yamato-net.co.jp/support/program/index.htm...

  • Page 85: Operation Mode, Function Setting Key, And Characters

    Operation Method Operation Mode, Function Setting Key, and Characters The operation mode setting and function setting use the key operation and characters show in the following figure.

  • Page 86: Setting Of Overheating Prevention Device

    Operation Method Setting of Overheating Prevention Device Setting range/function The overheat prevention device temperature setting range is from 0°C to 50°C beyond the maximum temperature setting for this unit. When in-bath temperature exceeds objective temperature setting and reaches that of the overheat prevention device, the heater circuit is shut off and error code "Er19"...

  • Page 87: Fixed Temperature Operation

    Operation Method Fixed Temperature Operation Fixed temperature 1. Turn on the power (turn on the breaker in front)  Current version of the software is displayed for about five seconds operation procedure after turning on the power. The screen then displays the initial setting.
  • Page 88 Operation Method Fixed Temperature Operation 4. Start operation  Press the orange RUN/STOP key for about one second. The unit starts operation and the blinking FIXED TEMP lamp lights 5. Stop operation  Press the orange RUN/STOP key for about one second. The unit stops operation and the FIXED TEMP lamp lights off.

  • Page 89: Quick Auto Stop Operation

    Operation Method Quick Auto Stop Operation This operation is used to specify the period up to automatic stop, Quick auto stop i.e., sets the auto stop timer during operation. operation procedure 1. Set the time up to stop during fixed temperature operation ①...

  • Page 90: Auto Stop Operation

    Operation Method Auto Stop Operation It is used when "I want to automatically stop after reaching set temperature from set time". This operation is used to specify the automatic stop time in the Auto stop operation fixed temperature operation. procedure 1.
  • Page 91 Operation Method Auto Stop Operation 2. Start timer operation  Press the RUN/STOP for one second after deciding the time.  Timer operation starts with the AUTO STOP lamp lighting on.  The timer is activated at the point when the temperature in bath (measurement temperature) reaches to the setting temperature.

  • Page 92: Auto Start Operation

    Operation Method Auto Start Operation It is used when "I want to start driving automatically after the set time". However, it does not automatically come to a stop and must be manually deactivated. Auto start operation 1. Set start time procedure ①...
  • Page 93 Operation Method Auto Start Operation 2. Start timer operation  Press the RUN/STOP for one second after deciding the time.  Timer operation starts with the AUTO START lamp lighting on. 3. Stop/terminate timer operation  The operation starts automatically at setting time. ...

  • Page 94: Calibration Offset Function

    Operation Method Calibration Offset Function Calibration offset is a function which corrects the difference between the temperature in bath and that of controller (sensor temperature) if arises. The function parallel corrects the difference either to the plus or minus side within the whole temperature range of unit. The function can be set or cancelled by the SUB MENU key.

  • Page 95: Lock Function

    Operation Method Lock Function This function locks the operation status previously set. The function can be set or cancelled by the SUB MENU key. ① Press the SUB MENU key. Select the character" "Lock", which indicates the lock of setting value, using the "▲▼", and then press the ENTER key.

  • Page 96: Temperature Output Terminal

    Operation Method Temperature Output Terminal Precautions  Operate this product according to the procedure described in this Operation Manual. Failure to follow the operation procedure described herein may result in a problem. The guarantee will not apply if you operate the product in the wrong manner. CAUTION! ...
  • Page 97 Operation Method Temperature Output Terminal Specification  The voltage (DC) corresponding to the measured temperature is output.  Output temperature range: -15 to 85℃  Output voltage: 4 to 20ｍA DC Temperature Output  Load: 600Ω or bellow (ANALOG)  Resolution: ±1℃ ...

  • Page 98: Rs485 Communication Function

    ・USB-485I from SYSTEM SACOM is recommended. ・ Following connection can be made with the optional "external communication adapter (RS485-USB) OIL24" (Workstation PC not included) A sample program is uploaded on our website. http://www.yamato-net.co.jp/support/program/index.htm ■ Communication cable for connection VS6 built-in device Cable 1...
  • Page 99 Operation Method RS485 Communication Function 2. Data Transmission Method Item Specification Communication standard EIA standard, complying with RS-485 Synchronization method Asynchronous communication method Communication method Half-duplex communication Transmission code ASCII code 2400／4800／9600/19200/38400bps Baud rate Communication distance Max. 500 m (It depends on the effect of the ambient environment.) Network Multi-drop method (up 1:31 stations) Signal wire...
  • Page 100 Operation Method RS485 Communication Function 4. Transmission Control Procedures 4.1 Communication Procedure ・This unit returns a "reply message" to a "request message" from the host computer but does not start transmission. ・This unit does not start communication (no reply) for about four seconds after the power is turned on. Set a delay until communication begins after the power is turned on.
  • Page 101 Operation Method RS485 Communication Function 4.3 Request Message Structures (transmission from the host computer to the unit) 4.3.1 Structure of Read Request Messages ① Start code ② Address □ □ R □ □ □ ③ Request (read) ④ Identifier ① ②...
  • Page 102 Operation Method RS485 Communication Function 4.4 Reply Message Structures 4.4.1 Reply Messages to Read Request Messages ① Start code ② Address □ □ □ □ □ □ □ □ □ □ ④ Identifier ⑤ Numeric data ① ② ⑧ ④ ⑤...
  • Page 103 Operation Method RS485 Communication Function 4.5 Description of Codes ■ The following codes from ①STX, ②address to ⑩error type are represented by ASCII codes. ■ For ASCII codes, see "8. List of ASCII Codes." ■ For conversion into ASCII codes, see "5. Communication Examples." ①...
  • Page 104 Operation Method RS485 Communication Function ⑦ BCC This is the check code for error detection and takes the exclusive OR (EX-OR) of all characters from STX to ETX. When "Enabled" is selected for BBC check among the communication settings for the unit, this code (BCC) will not be included in the reply message. ⑧...
  • Page 105 Operation Method RS485 Communication Function Communication Precautions 4.6.1 Transmission timing Set a sufficient response time when using communication to ensure that the host computer is switched from transmission to reception. Refer to the diagram of "4.1 Communication Procedure". 4.6.2 Request interval When transmitting "request message"...
  • Page 106 Operation Method RS485 Communication Function 5. Communication Examples 5.1 Read communication example Example) Request message: A request for reading PV1 is transmitted to the unit set at address 01. Reply message from the unit to this request message: The data of PV1 12.3℃ (00123) is returned. Read request message (transmitted from the host computer) ①...
  • Page 107 Operation Method RS485 Communication Function 5.2 Write communication example Example) Request message: A request for setting "SV1 to 37.0℃" (writing 00370) is transmitted to the unit set at address 01. Reply message from the unit to this request message: Information that the request message has been received is returned.
  • Page 108 Operation Method RS485 Communication Function 6. Wire Connection Shown below is an example of multi-drop wire connection. VS6 Built-in Device ID:01 Cable 1 Cable 2 USB-485I CN3-3,4 USB/485 converter (COM port) VS6 controller ID:02 Cable 3 CN3-3,4 VS6 controller Up to 31 stations can be connected.
  • Page 109 Operation Method RS485 Communication Function 7. List of Identifiers/Commands <Identifiers and set values> *1: "_" means a space. *2: When set value is 100 hours or longer, it is set in units of 10 minutes. *3: The W command on the setting screen is invalid. F Fixed value ·...
  • Page 110 Operation Method RS485 Communication Function Other Parameters Name Identifier Command Setting Value 00000：Lock Function oFF Lock Function 00001：Lock Function on 00000：Stop Operation start/stop 00001：Start 00000：Fixed temperature operation Operation type 00001: Timer operation selection ※W command valid only for fixed temperature operation 00000：Time-up Operation step Remaining hour...
  • Page 111 Operation Method RS485 Communication Function 8. List of ASCII Codes ASCII code Symbol ASCII code Numeric ASCII code － Numeric (space) (minus) ASCII code Symbol ASCII code Symbol ASCII code Symbol...

  • Page 112: Cooling Curve, Cooling Capacity Curve (Reference Data)

    Operation Method Cooling curve, cooling capacity curve (reference data) The graphs show the cooling and cooling capacity curves of each model below. Use the values just for reference because they depend on the sample volume, the ambient temperature, etc. Measurement conditions ・Room temp：23℃・Power supply：AC200V ・Frequency:50Hz ・Circulating fluid：Nybrine 50%(Cooling curve),...
  • Page 113 Operation Method Cooling curve, cooling capacity curve (reference data) Measurement conditions ・Room temp：20℃・Power supply：AC200V ・Frequency:50Hz ・Circulating fluid：Nybrine 50% ・Circulating fluid amount：6ℓ ・Fixed position: center in the bath ・Setting temperature: Heating：-15℃ CFA611 Cooling capacity curve 1400 1300 1200 1100 1000 -15 -10 Temperature （℃）...

  • Page 114: Nybrine Freezing Temperature And Viscosity (Reference Data)

    Operation Method Nybrine Freezing Temperature and Viscosity (reference data) You need to use a heat medium for lower temperature when the cooling temperature is set to 10℃ or below. Use an antifreezing fluid having a 10°C lower at least than the working temperature. See “9.

  • Page 115: Handling Precautions

    Handling Precautions WARNING! Substances that cannot be used Never use explosive substances, flammable substances and substances that include explosive or flammable ingredients in this unit. Explosion or fire may occur. (Refer to page60 "List of Dangerous Substances".) If a problem occurs If smoke or strange odor should come out of this unit for some reason, turn off the power key right away, and then turn off the circuit breaker and the main power.
  • Page 116 Handling Precautions Abnormal refrigerator pressure If the refrigerator operates in a high-temperature range, the refrigerator overload relay protecting circuit may work to illuminate Refrigerator error lamp deactivate the refrigerator. In this case, reduce thermal load by changing the fluid, or taking other appropriate measures. Abnormal fluid level Turn off the earth leakage breaker once and check the water amount of the circulating fluid.

  • Page 117: Maintenance Method

    Replacing the hose Replace the hose about once every two years to assure reliable operation of the product. Ask Yamato for replacement of hoses. Periodic replacement of circulating fluid Replace a circulating fluid about once every three month if you use tap water, and if you use Nybrine, replace a circulating fluid about every six month.
  • Page 118 Maintenance Method Daily Inspection and Maintenance Cleaning the filter(CFA611) A clogged filter deteriorates cooling performance or causes the refrigerator to malfunction. The clogged state depends on the ambient environment or working period. Clean the filter at regular intervals according to the working conditions. The mesh plate is fixed with a magnet.

  • Page 119: Long Storage And Disposal

    Long storage and disposal When not using this unit for long term / When disposing Caution Warning When the unit is not going to be used for a long When you are going to discard the product ● The unit uses replacing Fluorocarbon. time ●Turn the ELB to off and take off power supply Ask a professional for disposal of Fluorocarbon...

  • Page 120: In The Event Of Failure

    In the Event of Failure… Abnormality detection and Error Code The unit has an abnormality detection function. When an abnormality occurs, the alarm lamp on the control panel illuminates, an error code is displayed, and an alarm sounds. Note that a temperature gauging error will be indicated by displaying dashes on screen.

  • Page 121: Trouble Shooting

    In the case if the error other than listed above occurred, turn off the power switch and primary power source immediately. Contact the shop of your purchase or nearest Yamato Scientific Service Office.

  • Page 122: After Service And Warranty

    Warranty card will be handed by dealer or Yamato personnel upon delivery and installation, or will be attached to equipment if no one from dealer or Yamato is to be present at delivery and installation. Register warranty card at https://www.yamato-net.co.jp/support/warranty.htm ...

  • Page 123: Specification

    Specification Product Name Neo cool Circulator Model CFA611 CFW611 Circulation unit External sealed unit circulation Usable ambient temp. 5℃～35℃ Temperature control -10℃～80℃ range Temperature setting -15℃～85℃ range Temperature distribution JTM K05 ±0.1℃ at20℃ JTM K05 ±0.1℃ at20℃ accuracy ±0.2℃ at20℃ ±0.2℃...

  • Page 124: Wiring Diagram

    Wiring Diagram Symbol Part name Symbol Part name Earth leakage breaker Start condenser Terminal block Magnet pump Terminal block Operation display board Heater Relay (refrigerator) Relay (heater,pump) Current transformer Relay (pressure) PLANAR board Relay (float) Display board Relay (float) Temperature sensor (Pt) Pressure switch Temperature sensor (K) Pressure switch...

  • Page 125: Piping Diagram

    Piping Diagram Return 戻り口 オーバーフロー Overflow H Bypass Hﾊﾞｲﾊﾟｽ Pump ﾎﾟﾝﾌﾟ 吐出口 Discharge 外部装置（密閉系） External device 排水コック Drain cock (sealed system) Main unit 本体...

  • Page 126: Replacement Parts Table

    Replacement Parts Table ・CFA611 Part Name Code No. Specification Manufacturer 9×12×0.5m Silicon hoses 3040010002 Yamato Scientific (Drain, overflow) FA61141300 FA611-41300 Filter Yamato Scientific ・CFW611 Part Name Code No. Specification Manufacturer 9×12×0.5m Silicon hoses 3040010002 Yamato Scientific (Drain, overflow) Tetoron blade hose...

  • Page 127: Reference

    Reference List of Dangerous Substances Never process any explosive, flammable samples and also samples contained with those substances. ①Nitroglycol, Glycerine trinitrate, Cellulose Nitrate and other explosive nitrate esters ②Trinitrobenzen, Trinitrotoluene, Picric Acid and other explosive nitro compounds ③Acetyl Hydroperoxide, Methyl Ethyl Ketone Peroxide, Benzoyl Peroxide and other organic peroxides ④Metallic Azide, including Sodium Azide, etc.

  • Page 128: Installation Standard Manual

    Installation Standard Manual * Install the unit according the procedure described below (check options and special specifications separately). Person in charge of installation Person in charge of Model Serial number Date Judgment (company name) installation № Item Method Reference operation manual Judgment Specifications Check the quantities of accessories with...
  • Page 129 Be sure to use the unit strictly following the handling and operating instructions in this operating instruction. Yamato Scientific Co., Ltd. assumes no responsibility for an accident or a malfunction caused by use of this product in any way not specified in this operating instruction.

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