Instruction Manual
54 Pages
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Page 1
INSTRUCTION MANUAL
MDF-U500VX MDF-U500VXC
Ultra-Low Tem perature Freezer
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CONTENTS INTRODUCTION PRECAUTIONS FOR SAFE OPERATION ENVIRONMENTAL CONDITIONS FREEZER COMPONENTS Controlpanel REMOTE ALARM TERMINAL AIR INTAKE PORT INSTALLATION SITE INSTALLATION START-UP OF UNIT Operati on afterpowerfai l ure FUNCTION OF CONTROL PANEL BASIC SCREEN OF CONTROL PANEL RUNNING OPERATION (MENU/Set) Chambertemperature setti ng (Temperature) Al arm temp.setti ng (Hi gh Al arm/Low Al arm) Al arm del ayti me setti ng (Al arm Del ay) Ri ng backofal arm buzzersetti ng (Ri ng Back) Keyl ockfuncti on Keyl ockrel ease functi on VARIOUS SETTING (MENU/Log) Di spl ayofl og (Log) Indi cati on ofl og and transmi ssi on VARIOUS SETTING (MENU/Tool s) Ini ti al i zati on (Tool s/Defaul tSetti ng) Setofdate,ti me,l og i nterval(Tool s/Date Ti me) Setofdooral arm del ayti me (Tool s/DoorDel ay) Setofl og i nterval(Tool s/Log Interval ) Change ofcompressordel ayti me (Tool s/Comp.Del ay) Setofkeyl ockpassword (Tool s/KeyLockPW Setti ng) ALALRM BUZZER MONITOR OF FREEZER STATUS ALARMS & SAFETY FUNCTIONS ROUTINE MAINTENANCE Cl eani ng ofcabi net Defrosti ng ofi nsi de wal l Cl eani ng ofai ri ntake port REPLACEMENT OF BATTERY TROUBLESHOOTING DISPOSAL OF UNIT Recycl e ofbattery TEMPERATURE RECORDER (OPTION) BACK-UP SYSTEM (OPTION) MOUNTING OF INTERFACE BOARD (OPTION) MOUNTING OF LAN INTERFACE BOARD (OPTION) SPECIFICATIONS PERFORMANCE SAFETY CHECK SHEET
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P.2 P.3 P.7 P.8 P.10 P.11 P.11 P.12 P.13 P.14 P.14 P.15 P.16 P.17 P.18 P.19 P.20 P.21 P.22 P.23 P.24 P.25 P.27 P.28 P.29 P.30 P.31 P.32 P.32 P.33 P.34 P.36 P.36 P.37 P.38 P.39 P.40 P.40 P.45 P.47 P.48 P.49 P.50 P.51 P.52
INTRODUCTION Ŷ Read this manual carefully before using the appliance and follow the instructions for safety operation. Ŷ Sanyo never guarantee any safety if the appliance is used for any obj ects other than intended use or used by any procedures other than those mentioned in this manual. Ŷ Keep this manual in an adequate place to refer to it as necessary. Ŷ The contents of the manual will be subj ected to change without notice due to the improvement of performance or functions. Ŷ Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect. Ŷ Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any inaccuracies. Ŷ No part of this manual may be reproduced in any form without the expressed written permission of Sanyo.
CAUTION SANYO guarantees the product under certain warranty conditions. responsible for any loss of content or damage of content.
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SANYO in no way shall be
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PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with this manual as it contains important safety advice. Items and procedures are described so that you can use this unit correctly and safely. If the precautions advised are followed, this will prevent possible injury to the user and any other person. Precautions are illustrated in the following way:
W ARNING Failure to observe WARNING signs could result in a hazard to personnel possibly resulting in serious injury or death.
CAUTION Failure to observe CAUTION signs could result in injury to personnel and damage to the unit and associated property. Symbol shows;
this symbol means caution.
this symbol means an action is prohibited.
this symbol means an instruction must be followed.
Be sure to keep this manual in a place accessible to users of this unit.
< Label on the unit > This mark is labeled on the cover in which the electrical components of high voltage are enclosed to prevent the electric shock. The cover should be removed by a qualified engineer or a service personnel only.
W ARNING As with any equipment that uses N2 gas, there is a likelihood of oxygen depletion in the vicinity of the equipment. It is important that you assess the work site to ensure there is suitable and sufficient ventilation. If restricted ventilation is suspected, then other methods of ensuring a safe environment must be considered. These may include atmosphere monitoring and warning devices.
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PRECAUTIONS FOR SAFE OPERATION
WARNING Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to rain water. Only qualified engineers or service personnel should install the unit. unqualified personnel may cause electric shock or fire.
The installation by
Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from turning over. If the floor is not strong enough or the installation site is not adequate, this may result in injury from the unit falling or tipping over. Never install the unit in a humid place or a place where it is likely to be splashed by water. Deterioration of the insulation may result which could cause current leakage or electric shock. Never install the unit in a flammable or volatile location. This may cause explosion or fire. Never install the unit where acid or corrosive gases are present as current leakage or electric shock may result due to corrosion. Always ground (earth) the unit to prevent electric shock. If the power supply outlet is not grounded, it will be necessary to install a ground by qualified engineers. Never ground the unit through a gas pipe,water main,telephone line or lightning rod. Such grounding may cause electric shock in the case of an incomplete circuit. Connect the unit to a power source as indicated on the rating label attached to the unit. Use of any other voltage or frequency other than that on the rating label may cause fire or electric shock. Never store volatile or flammable substances in this unit if the cylinder cannot be sealed. These may cause explosion or fire. Do not insert metal objects such as a pin or a wire into any vent,gap or any outlet on the unit. This may cause electric shock or injury by accidental contact with moving parts. Use this unit in safe area when treating the poison,harmful or radiate articles. Improper use may cause bad effect on your health or environment. Turn off the power switch (if provided)and disconnect the power supply to the unit prior to any repair or maintenance of the unit in order to prevent electric shock or injury. Do not touch any electrical parts (such as power supply plug)or operate switches with a wet hand. This may cause electric shock.
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PRECAUTIONS FOR SAFE OPERATION
WARNING Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance. These may be harmful to your health. Never splash water directly onto the unit as this may cause electric shock or short circuit. Never put cylinders with liquid on the unit as this may cause electric shock or short circuit when the liquid is spilled. Never bind, process, or step on the power supply cord, or never damage or break the power supply plug. A broken supply cord or plug may cause fire or electric shock. Do not use the supply cord if its plug is loose.
Such supply cord may cause fire or electric shock.
Never disassemble, repair, or modify the unit yourself. Any such work carried out by an unauthorized person may result in fire, or electric shock or injury due to a malfunction. Disconnect the power supply plug if there is something wrong with the unit. abnormal operation may cause electric shock or fire.
Continued
When removing the plug from the power supply outlet, grip the power supply plug, not the cord. Pulling the cord may result in electric shock or fire by short circuit. Disconnect the power supply plug before moving the unit. Take care not to damage the power cord. A damaged cord may cause electric shock or fire. Disconnect the power plug when the unit is not used for long periods. Keeping the connection may cause electric shock, current leakage, or fire due to the deterioration of insulation. If the unit is to be stored unused in an unsupervised area for an extended period, ensure that children do not have access and that doors cannot be closed completely. The disposal of the unit should be accomplished by appropriate personnel. Remove doors to prevent accidents such as suffocation. Do not put the packing plastic bag within reach of children as suffocation may result.
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PRECAUTIONS FOR SAFE OPERATION
CAUTION Use a dedicated power source (a dedicated circuit with a breaker) as indicated on the rating label attached to the unit. A branched circuit may cause fire resulting from abnormal heating. Connect the power supply plug to the power source firmly after removing the dust on the plug. A dusty plug or improper insertion may cause a heat or ignition. Never store corrosive substances such as acid or alkali in this unit if the cylinder cannot be sealed. These may cause corrosion of inner components or electric parts. Check the setting when starting up of operation after power failure or turning off of power switch. The stored items may be damaged due to the change of setting. Be careful not to tip over the unit during movement to prevent damage or injury. Prepare a safety check sheet when you request any repair or maintenance for the safety of service personnel.
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ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC-61010-1): Ŷ Indoor use; Ŷ Altitude up to 2000 m; Ŷ Ambient temperature 5oC to 40oC Ŷ Maximum relative humidity 80% for temperature up to 31oC decreasing linearly to 50% relative humidity at 40oC; Ŷ Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage; Ŷ Other supply voltage fluctuations as stated by the manufacturer; Ŷ Transient overvoltages according to Installation Categories (Overvoltage Categories) II; For mains supply the minimum and normal category is II; Ŷ Pollution degree 2 in accordance with IEC 60664.
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FREEZER COMPONENTS 1 2
6
3 12 4 5
6 7 8 9 11 14
10
13
15
ON OF F
16 Compressor for B
Compressor for A
Power switch
Rear side
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FREEZER COMPONENTS 1. Outer door: To open the door, grip the handle. On closing, lock the door latch completely. 2. Inner door: The operation of the inner door should be quick to minimize the temperature rise in chamber. Lock the door latch completely when the door is closed. The door is removable for cleaning or defrosting. See page 36 “Routine maintenance”. 3. Control panel (on the upper front of the door): Used for temperature setting and indication of operating status is displayed on the panel. See page 10 for details. 4. Door latch: Always lock the latch when the outer door is closed. 5. Magnetic door gasket: This provides a tight door seal and prevents cold air leak. Keep clean. 6. Access port (rear and bottom): This is used for leading a cable and sensor of a measuring equipment, or nozzle of back-up system to chamber. 7. Air intake vent (grille): Do not block this vent to keep the proper cooling performance. 8. Caster: 4 casters are provided to facilitate moving of the cabinet. For the installation, adjust the leveling foot so that the front 2 casters cannot contact with the floor. 9. Leveling foot: The height of the freezer can be adjusted by this screw type foot. Keep the unit in level at the installation. 10. Space for temperature recorder: An automatic temperature recorder (optional component) can be attached here. See page 45 “Temperature recorder (Option)”. 11. Lock: Turn clockwise to 180o with a key and the outer door is securely locked. 12. Air intake port:After closing the outer door, if used to open soon. See page 11 13. Fixture (on back side): 2 fixtures are provided as spacers between the cabinet and wall and also serve as hooks to fix the unit. See page 13 “Installation”. 14. Power switch: This is for turning ON/OFF the power to the unit. ON – “I” OFF – “O” 15. Remote alarm terminal: This is used to notice an alarm condition of the unit to remote location. Refer to page 11 “Remote alarm terminal”. 16. Battery switch: This is a switch for a battery for power failure alarm. Normally, turn on this switch. Be sure to turn off this switch if the freezer is not in operating for the long period (over one month).
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FREEZER COMPONENTS Control panel 3
2
1
4
5
6
.
7 8 9
1. LCD panel 2. Alarm lamp (ALARM): 3. Figure input key:
This lamp is flashed during alarm condition.
User for operation setting.
4. Menu button (MENU): To open the menu window during setting. 5. Shift key (Upward, downward, rightward, leftward): To move the cursor on the LCD panel during setting. 6. Enter key (ENTER): To determine the selection of parameter during setting. 7. Clear key (CE): To clear the input value during setting or to return to the top screen after setting. 8. Alarm buzzer stop key (BUZZER): This key has three functions as follows: - Buzzer stop key : To silence the audible alarm under alarm condition, press this key. Refer to page 33, 34 and 35 for the details. - Alarm test key: By pressing this key for 5 seconds during normal operation, the alarm lamp blinks, the buzzer sound and the remote alarm activate. Pressing this key again finishes the alarm test. Refer to page 15 as well. - Chamber temperature display key: The chamber temperature is displayed by pressing this key during power failure. 9. LCD contrast adjusting knob (CONT.):
To adjust the contrast of LCD panel.
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REMOTE ALARM TERMINAL The terminal of the remote alarm is installed at the lower left side of the unit. The alarm is outputted from this terminal. Contact capacity is DC 30 V, 2 A. Contact output: between COM. and N.O. between COM. and N.C. At normal Open Close At abnormal Close Open Note: The alarm is actuated when the power cord is disconnected from the outlet or the power switch is OFF.
REMOTE ALARM
N.C. COM N.O. MAX DC30V 2A
AIR INTAKE PORT When a door is closed and opened soon, a door does not sometimes open this product. The warm air which went into the chamber is cooled down rapidly, and this is because air inside the chamber contracted. When a door is closed and opened soon, a door is easy to open with the following process. 1. Turn the cap of the left side counterclockwise, and remove it. 2. Put the air into the chamber from about ten for twenty seconds, and open a door. 3. Close a cap if a door opens.
Cap
A door may not open in the above method when there are frost and ice in the air intake port. In that case, open a cap, and investigate the matter whether there is no frost inside the air intake port. Remove frost inside the air intake port in "the air intake port cleaning stick"of the accessories when there is frost. Clean a air intake port every month even when there is no frost inside the air intake port. Refer to page 37.
WARNING For removing the frost of the air intake port, do not use a tool with sharp edge such as a knife or a screw driver.
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INSTALLATION SITE To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: Ŷ A location not subjected to direct sunlight Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight cannot obtain the intended performance. Ŷ A location with adequate ventilation Leave at least 10 cm around the unit for ventilation. Poor ventilation will result in a reduction of the performance and consequently the failure. Ŷ A location away from heat generating sources Avoid installing the unit near heat-emitting appliances such as a heater or a boiler etc. decrease the intended performance of the unit.
Heat can
Ŷ A location with little temperature change Install the unit under stable ambient temperature. The allowable ambient temperature is between -5 and +35oC. Ŷ A location with a sturdy and level floor Always install the unit on a sturdy and level floor. The uneven floor or tilted installation may cause failure or injury. Install the unit in stable condition to avoid the vibration or noise. Unstable condition may cause vibration or noise.
WARNING Install the unit on a sturdy floor. If the floor is not strong enough or the installation site is not adequate, this may result in injury from the unit falling or tipping over. Select a level and sturdy floor for installation. This precaution will prevent the unit from tipping. Improper installation may result in water spillage or injury from the unit tipping over. Ŷ A location not prone to high humidity Install the unit in the ambient of 80% R.H. or less humidity. Installation under high humidity may cause current leakage or electric shock.
WARNING Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to rain water. Never install the unit in a humid place or a place where it is likely to be splashed by water. Deterioration of the insulation may result which could cause current leakage or electric shock. Ŷ A location without flammable or corrosive gas Never install the unit in a flammable or volatile location. This may cause explosion or fire or may result in the current leakage or electric shock by the corrosion of the electrical components. Ŷ A location without the possibility of anything fall Avoid installing the unit in the location where anything can fall down onto the unit. This may cause the breakdown or failure of the unit.
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INSTALLATION 1. Remove the packaging materials and tapes Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent can damage the plastic components. For the dilution, refer to the instruction of the detergent.) After the cleaning with the diluted detergent, always wipe it off with a wet cloth. Then wipe off the panels with a dry cloth. 2. Adjust the leveling foot Extend the leveling feet by rotating them counterclockwise to contact them to the floor. Ensure the unit is level. (Fig.1)
Leveling foot
Fig.1
3. Fix the unit Two fixtures are attached to the rear of the frame. Fix the frame to the wall with these fixtures and rope or chain. (Fig. 2)
Fixture Fig. 2
WARNING Use a power supply outlet with ground (earth) to prevent electric shock. If the power supply outlet is not grounded, it is necessary to install a ground by qualified engineers. Never ground the unit through a gas pipe, water main, telephone line or lightning rod. Such grounding may cause electric shock in the case of an incomplete circuit.
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START-UP OF UNIT Follow the procedures for the initial and consequent operations of the unit. 1. Connect the power cord to the dedicated outlet having appropriate rating with the chamber empty, and turn on the power switch on the freezer. 2. Turn off the switch of the back-up system (optional component) if it is installed. 3. Check that the battery switch is ON. 4. The audible alarm may activated. In this case, press the buzzer stop key (BUZZER) to silence the alarm. 5. Set the desired chamber temperature. See page 18 for the temperature setting. 6. Check that the chamber temperature reaches the desired temperature. 7. Turn on the switch of back-up system (optional component) if it is installed. 8. Check that the alarm lamp lights and the buzzer sounds by pressing the alarm test key. 9. After confirming the above, you can put articles into the freezer chamber in a small batch to prevent the temperature rise.
Operation after power failure The set value is memorized by nonvolatile memory. Accordingly, the chamber resumes the operation with setting before power failure. During the power failure, the clock function is operating.
WARNING When this product operates at the first start-up or after no use for long period, the built-in battery capacity may be lowered or completely zero because of discharge of the battery. After installation the product, the freezer should operate for more than 3 days (72 hours) to charge the battery.
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FUNCTION OF CONTROL PANEL The following functions are available through control panel:. 1. Setting of standby operation: To set a running condition at the start-up.㧔refer to P.17䋩 2. Setting of log interval and sending to PC: To set a log interval (page 22) and to send a log date to PC. 䋨refer to P. 24䋩 When this function is used, an optional interface board is necessary. Contact Sanyo sales representative or agent at the time of installation of the optional parts.(refer to P. 53) 3. Setting of date and time: To set the date and time shown on the top screen.㧔refer to page 29䋩 4. Setting of alarm: To set the high or low temperature alarm(refer to P. 35). Also, to set the alarm delay (refer to page 16). 5. Default setting: To set the default items including LCD back color.㧔refer to page 28㧕 6. Alarm test: The test of alarm buzzer, alarm lamp and remote alarm is effective by pressing the alarm buzzer stop key (BUZZER) for about five seconds during normal operation. Pressing the key again finishes the alarm test. 1. Running operation (Set): 1-1 Chamber temperature (Temperature): -80oC (Default setting) (Setting range: -50oC - -90oC) (Refer to page 18) 1-2 High temperature alarm (High Alarm): +10oC (Default setting) (Setting range:+5oC - +20oC) (Refer to page 19) 1-3 Low temperature alarm (Low Alarm): -10oC (Default setting) (Setting range:-5oC - -20oC) (Refer to page 19) 1-4 Alarm delay time (Alarm Delay): 15 min. (Default setting) (Setting range: 0 -15 min.) (Refer to page 20) 1-5 Ring back of buzzer (Ring Back): 30 min. (Default setting) (Setting range: 0, 1 – 99 min.) (Refer to page 21) 1-6 Key lock (Key Lock): 0 (Default setting), 0: Unlock, 1: Lock (Refer to page 22 – 23) 2. Log (Log): When this function is used, an optional interface board is necessary. Contact Sanyo sales representative or agent at the time of installation of the optional parts. 2-1 Log data on past the first (PC 1D) (Refer to page 24) 2-2 All of the log data (PC ALL) (Up to 5 weeks) (Refer to page 25) 2-3 Clear log data (Clear) (Refer to page 25) 3. Various setting (Tools): 3-1 Initialization (Default Setting): When this function from 3-1-2 to 3-1-4 is used, an optional interface board is necessary. Contact Sanyo sales representative or agent at the time of installation of the optional parts. 3-1-1 LCD Back Color: 1 (Default Setting) (1: Blue䇮2: White) (Refer to page 28) 3-1-2 DAQ Speed: 0 (Default Setting) (0: 2400䇮2: 9600(bit/sec)) (Refer to page 28) 3-1-3 DAQ ID: 0 (Default Setting) (0: OFF䇮1 – 250) (Refer to page 28) 3-1-4 DAQ Mode: 0 (Default Setting) (0: Local䇮1: Remote) (Refer to page 28) 3-1-5 Remote Alarm: 1 (Default Setting)) 0: OFF䇮1: Active) (Refer to page 28) 3-1-6 Drive mode (Control: 0 (Default Setting) (0: Normal䇮1: ECO) (Refer to page 28) 3-2 Date䊶Time (Date Time): 3-2-1 Date: (YY/MM/DD) (Refer to page 29) 3-2-2 Time: (hh:mm:ss) (Refer to page 29) 3-2-3 Door alarm delay time (Door Delay: 2min. (Default Setting) (Setting range: 1 – 15 min) (Refer to page 30) 3-2-4 Log Interval: 15 min (Default Setting) (Setting range: 2 – 30 min.) (Refer to page 31) 3-2-5 Comp Delay: 3 min. (Default Setting) (Setting range: 3 – 15 min.) (Refer to page 32) 3-3 Key Lock PW Setting: (Refer to page 33) ƔAfter setting, press the menu button (MENU), select “OK” and press the enter key (ENTER) The setting is memorized.
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BASIC SCREEN OF CONTROL PANEL When the power switch is turned on, the top screen is displayed on the LCD panel. 0 1
0 2
1 1
1 2
- 8 0
o
1 3
T e mp
8 2 7 4 5
1 5
1 6
To p
1 3
1 4
C
㧙㧤㧜͠
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
3 3
3 4
3 5
3 3 6 7
3 8
3 9
4 0
Sc r e e n 㽲
Co n t r o l :
N o r ma l
㽳
A l a r m䋺
N o r ma l
㽴
St a t us 䋺
St a n d- b y
㽵
Do o r 䋺
Cl o s e d
1 2 3 4
㽶
6
2 0 0 9 /1 2 /0 1
6
1 2 : 0 0 : 0 0
5 1. Operation indication (Control): "Normal" (initialization value) is indicated by the normal operation. "ECO" is indicated in the saving energy mode. Refer to page 28. 2. Display of alarm 䋨Alarm䋩: “Normal” is usually indicated. “Alarm” or “Warning” is displayed during the alarm status and the additional message is displayed in the message column. “Test” is displayed at the alarm test. For the details of the alarm status, refer to page 25 through page 27. 3. Display of status (Status): “Stand-by” is usually displayed. A status number is displayed and an additional message is displayed in the message column when the operation monitor system detects the specified status. Refer to page 25 for the operation monitor system. 4. Display of door status (Door): When the door is open. 5. Display of date and time:
“Closed” is displayed when the door is close. “Open” is displayed
The current date and time are displayed.
6. Message column: An additional messages is displayed when the alarm status. Refer to page 33 through page 35 for the details. 7. Display of current value:
Current value of chamber temperature is displayed.
8. Display of setting: Set value of chamber temperature is displayed.
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16
RUNNING OPERATION (MENU/Set) This product is operated with set temperature at the time of start-up. 1. With the basic screen displayed, press the menu button (MENU) to show the menu window. Select “Set”, and press the enter key (ENTER). 1
2
1
2
3
4
5
6
7
To p
1 T e mp
2 3
8
9
0
1
- 8 0 o C
5
4
5
6
7
8
9
0
1
2
3
4
5
6 7
8
9
0
M ENU STD Se t N o r ma l L og St a nd- b y T ool s Cl o s e d
A l a r m䋺 St a t us 䋺 Do o r 䋺
2 0 0 9 / 1 2 / 0 1
6
3
Co nt r o l :
㧙㧤㧜͠
4
2
Sc r e e n
1 2 : 0 0 : 0 0
2. A setup screen (Temp. Setting) is displayed. Set up each parameter.
1 2 3 4 5 6 1. Temperature : This is a setting of chamber temperature. Temperature settable range is between -50 and -90oC. The factory setting is -80oC. 2. High Alarm: This is a setting of high temperature alarm. Temperature settable range: between chamber temperature +5 and +20oC The factory setting is chamber temperature +10oC. 3. Low Alarm: This is a setting of low temperature alarm. Temperature settable range: between chamber temperature -5 and -20oC The factory setting is chamber temperature -10oC. 4. Alarm Delay: This is a setting of delay time of alarm buzzer for high and low temperature alarm. The settable range is between 0 and 15 minutes. When 0 is set, the alarm buzzer sound without delay. The factory setting is 15 minutes. 5. Ring Back: This is the duration between the stop of alarm buzzer and next start of alarm buzzer. The settable range is between 1 and 99 minutes. The alarm buzzer is not back again when the setting is 0. (OFF). The factory setting is 30 minutes. 6. Key Lock: When 1 (Lock) is selected, the setting cannot be changed. The input of the password is necessary at the time of unlock. 3. Press the menu button (MENU) to finish the settlement of each parameter. Select OK on the menu window, and press the enter key (ENTER). The setting is memorized and the setup screen returns to 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 the top screen. 01 02 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
T e mp . S e t t i n g
2
T e mp e r a t u r e
-
8 0 o C
( - 5 0 o C
M ENU - O 9 K0 o C )
-
3
Hi g h
Al a r m
+1 0 o C
( +5 o C
-
+ 2 C0 ao nC c) e l
4
Low
Al a r m
- 1 0 o C
( - 5 o C
-
- 2 0 o C)
5
䌁l a r m Ri n g
6
Ke y
De l a y Ba c k
Loc k
1 5 mi n
( 0 - 1 5 mi n )
3 0 mi n
( 0 . OF F
0
1 - 9 9 mi n )
( 0 . Un l o c k
1 . Loc k )
Select Cancel on the menu window, and press the enter key (ENTER). The setting is not memorized and the setup screen returns to the top screen. Choose OK by this menu window, and push an enter key when you memorize the value of the running operation and the setting. And, when Cancel is chosen, various setting value is not memorized.
17
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RUNNING OPERATION (MENU/Set) Chamber temperature setting (Temperature) Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -35oC. Note: The unit is set at the factory that the chamber temperature -80oC. (Setting range: -50 - -90oC) Table 1. Basic operation sequence (Chamber temperature -80oC to -75oC) Description of operation
Key operated
Indication after operation
1
Switch on the freezer.
-----
The basic screen displayed
2
Press the MENU key.
MENU
The menu window is indicated. “set” is highlighted.
3
Press the ENTER key.
ENTER
The temp. Setting window indicated. And Chamber temperature -80 is highlighted.
4
The number input key is pressed in order of 7 ĺ 5.
7
5
Press the MENU key.
MENU
6
Press the ENTER key.
ENTER
5
And the
Chamber temperature is changed from -80 to -75. The menu window is indicated. And the “OK” is highlighted. Chamber temperature is memorized, and the top screen window is indicated.
Note: The set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation. Although the value of the chamber temperature setting can range between -50oC and -90oC, the guaranteed temperature without load is -85oC at ambient temperature of 30oC
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18
RUNNING OPERATION (MENU/Set) Alarm temp. setting (High Alarm/Low Alarm) As an example, Table 2 shows the procedure to set the high temperature alarm so that the alarm can activate when the chamber temperature is 5oC higher than the set temperature. Table 3 shows the procedure to set the low temperature alarm so that the alarm can activate when the chamber temperature is 5oC lower than the set temperature. The buzzer rings with the high temperature alarm and the low temperature alarm after fifteen minutes. (Factory setting) (The chamber setup temperature ± 10oC at the time of the factory setting.) Alarm temperature settable range: between chamber temperature -/+5 and -/+20oC. Table 2. Procedure for setting high temperature alarm (Change from +10oC to +5oC) Description of operation
Key operated
1
Indication after operation
-----
The basic screen displayed
2
Press the MENU key.
MENU
The menu window is indicated. “set” is highlighted.
3
Press the ENTER key.
ENTER
The temp. Setting window indicated. And Chamber temperature -80 is highlighted.
0
5
The set value 10 of the high temperature alarm (High Alarm) is highlighted. High temperature alarm is changed from +10 to +5. The menu window is indicated. And the “OK” is highlighted. High temperature alarm is memorized, and the top screen window is indicated.
4 5
Select High Alarm item pressing Shift keys. The number input key is pressed in order of 0 ĺ 5.
6
Press the MENU key.
MENU
7
Press the ENTER key.
ENTER
And the
Table 3. Procedure for setting low temperature alarm (Change from -10oC to -5oC) Description of operation
Key operated
1
Indication after operation
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The basic screen displayed
2
Press the MENU key.
MENU
The menu window is indicated. “set” is highlighted.
3
Press the ENTER key.
ENTER
The temp. Setting window indicated. And Chamber temperature -80 is highlighted.
0
5
The set value 10 of the low temperature alarm (Low Alarm) is highlighted. Low temperature alarm is changed from -10 to -5. The menu window is indicated. And the “OK” is highlighted. Low temperature alarm is memorized, and the top screen window is indicated.
4 5
Select Low Alarm item pressing Shift keys. The number input key is pressed in order of 0 ĺ 5.
6
Press the MENU key.
MENU
7
Press the ENTER key.
ENTER
And the
Note: The high temperature alarm / low temperature alarm set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation. And, high temperature alarm / low temperature alarm setting value is not memorized.
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