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8. Troubleshooting

Safety device and error codes

The unit has the self diagnostic function with a controller and a separate safety device.

Table below shows possible causes and measures when the safety device is triggered.

[Error codes]

When a functional or mechanical abnormality occurs, the alarm lamp will illuminate on the

control panel, an error code will be displayed on the control panel and the alarm busser will

sound. When an abnormality occurs, confirm the error code and immediately stop operation.

Safety device

Symptom

Possible causes and measures

Sensor error

Alarm lamp on

indication



Error in the temperature input circuit



Disconnection or other errors in the temperature

sensor



Measured temperature is outside the displayable

range

Contact our customer service center.

SSR short circuit

Alarm lamp on

indication



SSR short circuit

Contact our customer service center.

Detection of heater

disconnection

Alarm lamp on

indication



Heater disconnection

Contact our customer service center.

Memory error

Alarm lamp on

indication



Memory setting error

Contact our customer service center.

Internal

communication

error

Alarm lamp on

indication



Internal communication circuit and temperature

input circuit error

Contact our customer service center.

Overheat

Alarm lamp on

indication



Activation of overheat protector

First reset the power supply and check the
temperature in the bath and the set temperature for
the overheat protector.

f the unit does not reset, contact our customer

service center.

Measurement

temperature error

Alarm lamp on

－－－－
－－－－

indication



Measurement value is out of display range.

Contact our customer service center

Содержание IL603

Страница 1: ...he Operating Instructions and Warranty before operating this unit to assure proper operation After reading these documents be sure to store them securely together with the Warranty at a handy place fo...

Страница 2: ...rt Operation 29 Calibration Offset Function 31 Lock Function 32 Freezer operation mode function 33 Temperature rise fall characteristics 34 Introduction of optional parts 35 Temperature Output Termina...

Страница 3: ...equire hospitalization or outpatient visits for a long time Note 2 Minor injury means a wound or an electrical shock that does not require hospitalization or outpatient visits for a long time Note 3 P...

Страница 4: ...Hazard of explosion Caution General cautions Electrical shock Burning Caution for no liquid heating Caution for water leak For water only Poisonous material Prohibitions General bans Fire ban Do not d...

Страница 5: ...rds bundled When these are used bundled they might overheat causing a fire Take care not to damage electrical power cords Avoid tightly bend pull with a strong force or twist to prevent electrical pow...

Страница 6: ...spaces shown below 15cm or more 15cm or more Front 15cm or more 1m or more 2 Install the unit on a level surface Install the unit on a level surface If the whole bottom surface of the unit does not c...

Страница 7: ...perate the unit at such a place that may subject to splash Liquid entering the inside may cause an accident a malfunction an electrical shock or a fire 6 Never operate the unit in an atmosphere contai...

Страница 8: ...t power supply line such as a gas pipe a water pipe or a telephone line Otherwise an accident or a malfunction may result 8 Handling of a power cord Never use electrical power cords bundled When these...

Страница 9: ...ever use a branch outlet which may generate heat and cause a dangerous situation We recommend use of a ground type outlet tap Outlet with an earth pole When there is no ground terminal In this case cl...

Страница 10: ...osts in the internal bath of the main body Completely push shelf boards by sliding to the end Take care to put each shelf board on correct pairs of right and left shelf pegs Make sure that shelf board...

Страница 11: ...Specimen that contains a flammable or explosive component This unit is not explosion proof Never attempt to dry or process a specimen that contains a flammable or explosive component Corrosive specim...

Страница 12: ...ressing the defrost key on the controller operation panel separately from the fixed value operation 1 Manual defrost operation operation is started manually and stopped automatically Carry out defrost...

Страница 13: ...the temperature control precision is slightly lower than the continuous operation mode but can reduce frosting When the set temperature is 10 is less the freezer will automatically switches to the con...

Страница 14: ...lf peg shelf board 3 sets included as standard Shelf pillar Up to 12 shelf boards accepted Observation window for monitoring frosting on the evaporator External output terminal Temperature output term...

Страница 15: ...amp Blinks while setting quick auto stop timer or auto stop timer Lights while quick auto stop timer or auto stop timer is running AUTO START Lamp Blinks while setting auto start timer Lights while au...

Страница 16: ...tion CYCLE DEFROST key Used to activate the cycle defrost function Manual defrost lamp Lights while the manual defrost function is active Cycle defrost lamp Lights while the cycle defrost function is...

Страница 17: ...operation is ended Refer to Pages 25 cAL Calibration Offset Setting Used for inputting the calibration offset temperature Refer to Page 31 Calibration Offset Function oH Overheating Prevention Setting...

Страница 18: ...p operation activates the timer function and stops the operation automatically after specified period P 25 3 Auto Stop Operation This operation is used to specify the automatic stop time in the fixed...

Страница 19: ...ration offset function This calibration offset function is for calibrating the difference occurred between the required in bath temperature and control temperature sensor temperature of the controller...

Страница 20: ...gs 1 Manual defrost operation Operation is started manually and stopped automatically Perform defrost operation when you have found that a lot of frost on the evaporator through the frost observation...

Страница 21: ...u set to the cycle operation When the set temperature is 44 1 or higher the freezer will stop automatically Continuous operation The freezer will operate continuously Select this when you think temper...

Страница 22: ...r starts Auto stop Time setting ASt Operation stops automatically 1 sec Breaker ON TIMER RUN STOP 1 sec Temp setting Time setting RUN STOP 1 sec AStr Temp setting Timer starts Operation starts automat...

Страница 23: ...he controller and previously set at factory shipment so to be automatically activated when the temperature exceeds the setting temperature of temperature controller by 4 where the heater turns off The...

Страница 24: ...erheat preventive temperature flashes in the set temperature screen Caution In most cases set the temperature here to a temperature for the controller 10 or higher Setting range 0 105 Factory setting...

Страница 25: ...character Overheating prevention screen Displays the setting temperature of overheating prevention device 2 Select the operation mode Press the FIXED TEMP key to display FIX which indicates the fixed...

Страница 26: ...The screen returns to the initial setting screen To correct or check setting Press the FIXED TEMP key again to correct or check the setting Changing the setting temperature during operation is also p...

Страница 27: ...sly Press them discontinuously when fine adjustment is needed 2 Start timer operation Press the RUN STOP key for one second after deciding the time Timer operation starts with the FIXED TEMP and AUTO...

Страница 28: ...ing the setting Changing the setting time during operation is possible by pressing the TIMER key Note that the time setting is required using the value calculated by adding a new additional time to th...

Страница 29: ...ent setting temperature with blinking The AUTO STOP lamp blinks too Set the temperature using the The temperature can be set to the first decimal place Press the ENTER key again The measurement temper...

Страница 30: ...FIXED TEMP and AUTO STOP lamps lighting on Press the RUN STOP to terminate the timer operation mode The screen returns to the initial setting screen To correct or check setting Changing the setting te...

Страница 31: ...emperature screen displays the current setting temperature with blinking The AUTO START lamp blinks too Set the temperature using the The temperature can be set to the first decimal place Press the EN...

Страница 32: ...n To correct or check setting Changing the setting temperature or time during operation is possible by pressing the TIMER key Use the to change the setting value Press the ENTER key respectively after...

Страница 33: ...her or side When it is set to the minus side the temperature on the measurement temperature display screen falls by the setting temperature while the temperature on bath rises When it is set to the mi...

Страница 34: ...ncel the lock Select the character Lock which indicates the lock of setting value using the and then press the ENTER key Select oFF with the and then press the ENTER key to cancel the function All key...

Страница 35: ...ing the value to 1 with the key When you want to set the freezer to continous operation press the SUB MENU key again to select the character Fcnt which indicates the freezer operation mode using the k...

Страница 36: ...34 4 Operation Method Temperature rise fall characteristics reference data 0 10 20 30 40 50 60 0 10 20 30 40 50 60 70 80 90 Temperature rise fall time Time min Temperature...

Страница 37: ...to be put in the bath by adding shelf boards Accessories Shelf board 1 Shelf peg 2 Wire shelf board product code 213464 One shelf board can support specimen of 15kg or more Withstand load of shelf boa...

Страница 38: ...e breaker before connecting the cables 2 Connect a recorder or another appliance of 600 or less in input impedance to the temperature output terminal 3 Securely fasten all connections with the screws...

Страница 39: ...0mA Load impedance 600 or less Resolution 1 Connection M4 screw terminal block Alarm Output ALARM Output when an abnormality is detected See Safety device and error codes on P 48 for description of a...

Страница 40: ...485 232C ODK18 or external communication adapter RS485 USB OIL24 permits the connections described in Note 1 below except the personal computer Communication cable for connection PC VS3 controller CN3...

Страница 41: ...Symbol Name Code Detail STX Start of text 02H Indicates the start of the text ETX End of text 03H Indicates the end of the text R Read 52H The command to read a request W Write 57H The command to writ...

Страница 42: ...I codes 4 3 Request Message Structures transmission from the host computer to the unit 4 3 1 Structure of Read Request Messages S T X R E T X B C C 4 3 2 Structure of Write Request Messages S T X W E...

Страница 43: ...ly Messages to Write Request Storage Request Messages S T X A C K E T X B C C 4 4 3 Reply Messages In Case of an Error S T X N A K E T X B C C Start code Address Identifier Numeric data End code BCC d...

Страница 44: ...e unit or save it in the unit Identifier This is the classification symbol identifier of the data to be read or written and represented by a three digit alphanumeric ASCII code See 7 List of Identifie...

Страница 45: ...o error is found in the received message NAK This is a negative acknowledgement code and included and returned in the reply message from the unit when there is an error in the request message received...

Страница 46: ...ed S T X 0 2 R P V 1 E T X B C C Code Symbol Data ASCII code 2 Start Code STX 02H Address 02 30H 32H Request Read R 52H Identifier 1 PV1 50H 56H 31H Numeric Data 00123 30H 30H 31H 32H 33H End Code ETX...

Страница 47: ...data has been properly written by reading it separately S T X 0 3 A C K E T X B C C Code Symbol Data ASCII code 2 Start Code STX 02H Address 03 30H 33H Request Write W 57H Identifier 1 PV1 53H 56H 31H...

Страница 48: ...1 VS3 Built in Device Up to 31 stations can be connected Note 1 Communication cable 1 One meter long RS 232C cable with a connector for IBM nine pin appliance connection to the personal computer and...

Страница 49: ...ameter with which a W command is valid during each operation valid during operation in regular mode Fixed value operation parameters Name Identifier Command Set value Temperature setting SV1 R W SLL S...

Страница 50: ...000 First digit Memory error Second digit Sensor error Third digit AT error Fourth digit Heater wire disconnection error Fifth digit SSR short error Error state 0 No error exists 1 An error exists Err...

Страница 51: ...code 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H Numeric 0 1 2 3 4 5 6 7 8 9 ASCII code 2DH 20H Numeric minus SP space ASCII code 41H 42H 43H 44H 45H 46H 47H 48H 49H 4AH Symbol A B C D E F G H I J ASCII...

Страница 52: ...perature of the unit will rise degrading the performance and an accident a malfunction or a fire may result 4 Do not allow liquid to spill over the unit Do not allow liquid to spill over the unit Pay...

Страница 53: ...tage and resumes operation If you do not want to resume operation by automatic recovery turn the ELB off 6 Abnormal refrigerator pressure If the refrigerator operates in a high temperature range the r...

Страница 54: ...s the test button on the device with a ball point pen to check whether it is turned off to indicate that it is in the normal state Maintenance of the internal bath Stop operation and turn the ELB to O...

Страница 55: ...er Caution Condenser clogged with dusts or foreign objects may deteriorate cooling capacity or cause a malfunction The fins of the condenser are bent easily Take care not to crush them while cleaning...

Страница 56: ...ute to the preservation of the global environment Major components and materials for the unit are as follows Names of major parts Major materials Major components of the outer finish Outer finish Bond...

Страница 57: ...outside the displayable range Contact our customer service center SSR short circuit Alarm lamp on indication SSR short circuit Contact our customer service center Detection of heater disconnection Ala...

Страница 58: ...ply voltage has declined IF fluctuation of the environmental temperature has become large If load for inside the bath is large The refrigerator does not start Refrigerator is overloaded Turn the ELB o...

Страница 59: ...y matters and send the card to the customer service center by fax number shown in the back cover Save the warranty card at a safe place Warranty period is one full year from the date of purchase Repai...

Страница 60: ...ter Chrome iron wire heater 800W Refrigerator Air cooled fully closed compressor 300W reciprocal type Refrigerant amount HFC R134a 230g Defrosting mechanism Hot gas bypass system Manual defrost manual...

Страница 61: ...ansformer 100V 9 8V DEF Defrost board TF Transformer Electric Leakage Breaker AC100V 15A 30mA Terminal block for wiring Heater inside unit 800w Fan inside unit Electromagneti c valve Return valve Elec...

Страница 62: ...60 12 Replacement parts list Part name Code Specifications Maker Silicone plug for cable port H436 4008 09 Aram Filter condenser suction assembly IL60340500 IL603 40500 Yamato Scientific...

Страница 63: ...er perchlorates Potassium peroxide sodium peroxide barium peroxide and other inorganic peroxides Potassium nitrate sodium nitrate ammonium nitrate and other nitrates Sodium chlorite and other chlorite...

Страница 64: ...connect the ground wire Power supply is 10 Specifications Specification power supply P 6 P 6 P 58 2 Operation start Start operation Set to a temperature about five to 5 lower than the room tempera tu...

Страница 65: ...pt to perform matters prohibited in this operation instruction Otherwise an unexpected accident may result Notice Descriptions in this operating instruction are subject to change without notice We wil...

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