USER'S MANUAL - Scala Scientific
Contents
1. Page Scala_Scientific_ULT_Manual 47 aal bae ael eel Gd Jn Page Scala Scientific ULT Manual 48 A H 1 1 03 41 u OE HI t IN GR M me PE pj K 8 I IN iL EU Ars I 2 7 2 I I I I Le I I I I I I 8 G AND a RT R Di ab I I I 4 I I I I I I 4 4 I I nn eT Ra o Er JJ I I El I Rij si T 1 LE IL I 5 5 A tet D cir rem d NEBO ER 220 var LO v c xm CONPRESSOR 1 COMPRESSOR 2 E Page Scala_Scientific_ULT_Manual 49 PT1O0 CHAMBER PT100 EXCHAMGER PT100 CONDENSER FT100 AMBIENT DOOR SWITCH DE OR Pedi Ol Hart Di 1004530 Besig mart Q 77041 G Page Scala_Scientific_ULT_Manual 50 Page Scala_Scientific_ULT_Manual 51 8 3 REFRIGERATION TROUBLE SHOOTING 8 3 1 COMPRESSOR NOT RUNNING Repairing the compressor not in working over one day Below Norma2. Recommendations and precautions Packing Transport Temperature recomendations Safety instructions Installation place How to install _ _ Electrical connections and service connections Power supply How to earth Main power connections Door alarm Remote alarm RS485 port 6 OPERATING INSTRUCTIONS 6 1 6 2 Control keyboard display Disconnection Scala_Scientific_ULT_Manual 21 21 21 22 22 23 23 24 24 24 25 0525 26 26 27 27 33 Page 5 7 ACCESSORIES __ 34 34 35 36 36 37 38 38 38 39 40 40 40 7 1 Aluminum storage racks for upright freezers 7 2 Fiberboard storage boxes and dividers 7 3 CO back up system optional 7 3 1 Introduction of CO back up system optional LC0070 7 3 2 CO back up system safety remarks 7 4 Chart recorder optional 7 4 1 Changing the chart paper A 7 4 2 Replacement of pen 7 4 3 Pen arm calibration U 7 4 4 Temperature recorder calibration check 7 4 5 Battery back up 7 4 6 Battery location and replacement 7 4 7 Chart range selection 8 SERVICE 8 1 General troubleshooting 8 2 Electrical trouble shooting 8 2 1 Error codes 8 2 1 Electrical trouble shooting 8 2 2 Electrical schematic 8 3 Refrigeration trouble shooting 8 3 1 Compressor not running 8 3 2 Compressor is running but with wrong temperature 8 3 3 Refrigeration drawing and principal of the cascade refrigeration system 8 3 4 Charging quantity and type of refrigera
3. Scala Scientific USER S MANUAL Ultra low temperature freezers Upright amp Chest Failure to read understand and follow the instructions in this manual may result in damage to the unit injury to operating personnel and poor equipment performance Scala_Scientific_ULT_Manual Page 2 0 QUICK INSTALLATION GUIDE After installation on location leave the freeze to rest for at least 8 hours 1 Recommended room conditions A RECOMMENDED ROOM TEMPERATURE BETWEEN 5 C AND 28 C If the room temperature is normally gt 30 C please install suitable air conditioning b Make sure the floor is level and even c Make sure the condenser grid is not blocked adequate air circulation is required d Install the two spacers on the back of the freezer to allow heat dispersion behind the freezer fig 1 2 Turning the Freezer on WARNING A gt Always start up the freezer empty Do not put racks inside the freezer before it has reached his set point a Push the power plug firmly into the power socket please check you have the correct voltage fig 2 WARNING A It should be connected to a suitable socket base minimum 15A with a grounded IN A plug The plug connection must be located in such a place to prevent it from being ANNAN unplugged accidentally during operation e g next to a wall or closed to another Fig 2 equipment b Once the above points have been controlled start up the ultr
4. UP FIN Increases the value of the selected field Decreases the value of the selected field 6 Confirms the value selected in a field and moves the selection to the next field After pressing for the final time if the password is correct it accesses the Main Operation screen 2 Main Operation screen It shows sample temperature ambient temperature and voltage information Such information is shown in several screens Activates Deactivates acoustic alarm HN Goes to Main Control screen Amb 22 C Vol 104 Scala Scientific ULT Manual Page 28 3 Main Control screen Access to Adjustments screen Access to Password Configuration screen Goes to Alarms screen 3 1 Adjustments screen Access to configuration screen Access to Language Selection screen Date hour screen Back to Main Control screen 3 1 1 Configuration screen requires pin confirmation Access to Set points screen Access to Contrast amp volume screen Access to Change filter screen Back to Adjustments screen 3 1 1 1 Set points screen Back to Configuration screen Scala_Scientific_ULT_Manual Page 29 3 1 1 2 Contrast amp volume screen o OD the contrast of the display aul Changes the volume of the alarms Back to Configuration screen 3 1 1 3 Change Filter screen Zero filters w w Confirms the resets of the hours for the filter Last rer l6r11r11
5. Oy UE d Easy to clean condenser filter 10 Pressure equalization port allows easy access to cabinet after door closing 11 Quiet running fans and compressors create a very low noise level 50 dBa 12 Heated door seals prevent ice to build up Theory Behind the Perfect Fit System High pressure insulated PU foam Door seal 1 Hot line Door seal 2 Door with control panel x cd Insulated inner doors 2 Vacuum insulation The hot gas line prevents ice building up at the sides of the door and 3 PU foam cabinet The plastic strip prevents direct contact between the metal cabinet housing and the door air Direct cold conduction ice is 4 Stainless steel interior prevented Insulated inner doors prevent cold loss from the individual compartments The unique 3 door seal system ensures a tight door 5 Double door seal heated closing with as result a minimum of ice us VIP insulation of Igloo 1 Polyester coated exterior Scala Scientific ULT Manual Page 11 4 2 1 CHEST MODEL SPECIFICATIONS Igloo Igloo Igloo TECHNICAL SPECS UNIT C370 C620 C820 full 304 stainless steel interior Cabinet material Polyester coated exterior Sample throughputs 2 standard ports 1 pre cut uncrated crated 180 200 220 250 285 325 Electricity 220 240 V 50 Hz Igloo Igloo Igloo C360 C620 C820 up to 86 factory set point is 80 TEMPERATURE SPECS emperature range We recomme
6. Volts Failure of the power supply Battery needs Replacement part number Temperature of the condenser is over the upper limit 409C by default Temperature of the chamber is over the upper limit Temperature of the chamber is below the lower limit CO2 Valve has been activated The condenser filter is dirty or the condenser fan is not working properly Time date should be adjusted Chamber temperature PT100 has some problem Heat exchanger temperature PT100 has some problem Condenser temperature PT100 has some problem Ambient temperature PT100 has some problem Ambient Temperature is over the upper limit Temperature PT100 has some problem Temperature PT100 has some problem One or both compressors are overheated Scala Scientific ULT Manual Page 43 8 2 1 ELECTRICAL TROUBLE SHOOTING Yes Yes Yes Yes No Yes Scala_Scientific_ULT_Manual Page 44 Yes Yes Yes Yes Yes Scala_Scientific_ULT_Manual Page 45 8 2 2 ELECTRICAL SCHEMATIC CHEST and UP RIGHT PROJEST REFERENCE Telstar Technologies DRAWINGS TYPE ELECTRIC Dais 30092011 Report of Drawings 1004530 P gina 1 Gouda Telstar Technologies SREERS f AA bi too4630 Page Scala Scientific ULT Manual 46
7. and hold the change chart button 3 until the pen begins to move back onto the chart and the selected range will be saved into the recorder s permanent memory Note The correct range for your purchased ULT is factory set Changing of chart range is not necessary Scala Scientific ULT Manual Page 41 8 SERVICE 8 1 GENERAL TROUBLESHOOTING Symptom Solution 1 When the room temperature is above 30 If the room temperature around the unit is 30 C C or warmer please open the condenser air inlet and In case the room temperature is above 30 C for longer time the condenser cannot be cooled optimal This can cause high temperature alarm and damage to the compressor system make sure that the room is cooled below 30 C Please note you need an air conditioned room in these circumstances 2 When the room temperature is below O C The oil in the compressor will be condensed It can have negative effect on the operation of the compressor Some electrical parts will not operate optimal anymore When room temperature is below 0 C heat the area room and keep the temperature minimal 5 C 3 In case there is excessive dust around the unit This unit uses a condenser which is air cooled In case of excessive dust around the unit dust will pile up at the front of the condenser This will cause the compressor is not cooled effectively and this can cause high temperature alarm and
8. are non poisonous but very cold and will burn unprotected skin immediately Wear protective clothing The gases also distract the oxygen from the surroundings Do not keep them in enclosed areas After closing the valve please check whether the solenoid allows the liquid to bleed off instead of being trapped in the supply tube If pressure rises too high damage can be inflicted in the unit The flow of liquid CO2 and LN2 will be discontinued upon door or lid opening only if the switch provided with the Back up system is installed 7 3 1 INTRODUCTION OF CO2BACK UP SYSTEM OPTIONAL LC0070 A CO Backup System ensures an extra safe environment for your samples even in case the Freezer has a long term power failure or in case the freezer has a technical problem The backup system in combination with a liquid CO bottle cylinder can remain a temperature around 70 C for several hours WARNING N PLEASE DO NOT TURN ON THE CO2 BACK UP SVSTEM FOR THE FRIST TIME BEFORE THE UNIT HAS REACHED THE TEMPERATURE OF 80 C If the CO2 Back up system is turned on before the unit is cold 80C the back up system will start injecting CO2 because it has not reached the right temperature yet Scala Scientific ULT Manual Page 36 7 3 2 CO BACK UP SYSTEM SAFETY REMARKS When you replace the used CO cylinder please use the CO cylinder with Siphon Tube not general CO cylinder When the door is open during injection of CO2 the injecti
9. damage to the compressor system In case there is excessive dust around the unit open the condenser door once a month and remove and clean dust filter Also remove dust from the condenser with a soft cloth 4 In case the condenser door is blocked by an object This unit uses a condenser which is air cooled In case the air circulation intake is blocked by an object the compressor is not cooled effectively and this can cause high temperature alarm and damage to the compressor system Please always make sure the condenser air inlet is kept clear of any object 5 In case the freezer is installed directly to the wall This unit uses a condenser which is air cooled Warm air should have change to circulate In case the unit is too close to a wall this freedom is blocked This will cause the compressor is not cooled effectively and this can cause high temperature alarm and damage to the compressor system Please always make sure the freezer is always at least 15 cm free from all sides 6 Under heavy humid circumstances It can cause a technical malfunction in the electrical applications and short circuit Ventilate the space properly by using a ventilator or by opening the windows An application which can reduce moisture will be helpful Scala_Scientific_ULT_Manual 42 Page 8 2 ELECTRICAL TROUBLE SHOOTING 8 2 1 ERROR CODES The door is open Line voltage is lower than 205
10. official complaint to the forwarding company Scala_Scientific_ULT_Manual Page 21 If there is no visible damage to the unit unpack inspect and test the equipment within 8 days of delivery Do not return goods without notifying and authorization 5 3 TEMPERATURE RECOMENDATIONS We recommend running the ULT s with a set point of 80 C Our freezers are produced tested and calibrated on this temperature set point With this set point the freezer is performing in most optimal conditions and guarantees the longest lifetime for compressors In case of using set points with colder temperature will decrease compressor lifetime and does not have any effect on better conditions for your samples 5 4 SAFETY INSTRUCTIONS The ULT s are filled with flammable refrigerant always take care of the following warnings WARNING Keep ventilation openings in the appliance enclosure clear of obstruction WARNING Do not use mechanical devices or other mains to accelerate the defrosting process other than those recommended by the manufacturer WARNING Do not damage the refrigeration circuit WARNING Do not use electrical appliances inside the storage compartments of the appliance unless they are of the type recommended by the manufacturer Scala_Scientific_ULT_Manual Page 22 5 5 5 6 INSTALLATION PLACE an WN PR Do not subject to direct sunlight Adequate air circulation Not subject to excessive dust Not subje
11. service or sales back up is needed please do not hesitate to contact your local Dealer Scala Scientific Kryptonstraat Nr 15 6718 WR Tel 0318 642785 Fax 0318 642706 e mail info scala scientific nl http www scala scientific nl Scala Scientific ULT Manual Page 60 10 Fabricante Manufacturer Descripci n Description Equipos Equipments Archivo del expediente t cnico Body Retaining Technical File DIRECTIVAS CE EC DIRECTIVES Directiva de M quinas 2006 42 CE Machinery Directive 2006 42 EC Directiva de Compatibilidad Electromagn tica 2004 108 CE Electromagnetic Compatibility Directive 2004 108 EC Directiva de Baja Tensi n 2006 95 EC Low Voltage Directive 2006 95 EC Directiva Equipos a Presi n 97 23 EC Pressure Equipment Directive 97 23 EC Equipos de Laboratorio EN 61010 1 Laboratory Equipment EN 61010 1 Firmado por Signed by Cargo Title Fecha Date Scala_Scientific_ULT_Manual 61 CE DECLARACI N DE CONFORMIDAD EC DECLARATION OF CONFORMITY TELSTAR TECHNOLOGIES S L Ultra Low Temperature Freezers U830 45 U570 45 U445 45 C820 45 C620 45 C370 45 instrucciones de Telstar Telstar Cold Storage Manager EC DECLARATION OF CONFORMITY Av Font i Sagu 55 08227 Terrassa Spain Congeladores de Ultra Baja Temperatura U830 U570 U445 C820 C620 C370 Archivado por TELSTAR TECHNOLOGIES S L Retained by TEL
12. the evaporator and cools the inner chamber to temperatures down to 86 C Summary e Operation of first compressor e Cooling of first stage heat exchanger down to 40 C e Operation of second stage compressor e Second stage refrigeration is condensing in the heat exchanger of first stage e Cooling the inner chamber by the second stage refrigeration down to 86 C Scala Scientific ULT Manual Page 56 8 3 4 CHARGING QUANTITY AND TYPE OF REFRIGERANTS 8 3 4 1 REFRIGERANT QUANTITY FOR CHEST MODELS ALL DATA AT 4240C AMBIENT TEMPERATURES R 290 150 R 170 5000 2 x 602890 B _ 5 4hp R 290 150 R 170 5500 Hermetic Compressor R 290 150 R 170 6500 Above tables are for reference only In case of re charging please contact your local Scala service engineer Scala_Scientific_ULT_Manual Page 57 8 3 4 2 REFRIGERANT QUANTITY FOR UPRIGHT MODELS ALL DATA AT 24 C AMBIENT TEMPERATURES R 290 150 R 170 6000 2 x 602890 E _ 5 4hp R 290 150 R 170 6500 Hermetie Compressor R 290 150 R 170 8000 Above tables are for reference only In case of re charging please contact your local Scala service engineer Scala_Scientific_ULT_Manual Page 58 8 4 REGISTRATION OF SERVICE Before you register for the service please read the following information 1 The unit does not operate at all O Please check the power supply 230V plug connection O Please check whethe
13. Back to Configuration screen 3 1 2 Languages screen Es L anauaaez CE 4 Sranish Gb Enslish DT 3 G FI F Confirms the selected language and goes back to Adjustments screen erman rench 3 1 3 Date hour screen 12S Dod w Confirms the selected value and selects next field format dd mm yy hh mm Resets numeric fields Goes back to Adjustments screen Scala_Scientific_ULT_Manual Page 30 3 2 Password Configuration screen EC MM the user to change the user password E FIHI Coded password In case of forgotten password by giving this code to Customer Service the previous password will be recovered Back to Main Control screen 3 3 Tests screens CHK Back to Main Control screen Begins with freezer testing C Chamber probe I Heat Exchanger probe c Condenser A Ambient Alarm buzzer OK V Voltage C1 Compressor 1 stage C2 compressor 2 stage 4 Alarms screen Next page T en Access to Ambient alarms screen Fa Access to Alarm removal screen HN Goes to Info screen Scala Scientific ULT Manual Page 31 4 1 Ambient alarms screen Next page Hin Goes to Alarms screen 4 2 Alarm removal screen Inrut FIN Next page HN Goes to Alarms screen 5 Info screen It shows several data of current day including the alarm types occurred Next day Previous day con Fow bat lb Hr Goes to Week
14. RIES Pull down curve for U445 for testing cooling speed Temperature C Temperature Testing environment Powered by Ambient temperature 25 C 2 C Eolo fien Wireless Lab www wirelesslab eu Warm up curve for U445 for testing isolation rate Temperature C 100 Temperature Testing environment Powered by Ambient temperature 250C 2 C e Empty freezer W reless Lab www wirelesslab eu Scala Scientific ULT Manual Page 14 4 2 4 CHARACTERISTICS OF TEMPERATURE C370 SERIES Pull down curve for C370 for testing cooling speed Model C370 Temperature Pull Down 40 20 g i 60 80 1 Temperature Testing environment Powered by Ambient temperature 250C 2 C e Empty freezer Wireless Lab www wirelesslab eu Warm up curve for C370 for testing isolation rate Model C370 Temperature Warm Up e Lu 5 E Ue E AM Temperature Testing environment Powered by Ambient temperature 25 C 2 C e Emptv freezer Wireless Lab www wirelesslab eu Scala Scientific ULT Manual Page 15 4 3 COMPONENTS amp FUNCTION DESCRIPTION 4 3 1 CHEST MODEL Back inl acK UP system Mese Optional inlet inside Sensor inlet back Control panel Locking device Pd Handle DA nd Optional recorder Condenser door Castor Scala Scientific ULT Manual Page 16 Scala_Scientific
15. STAR TECHNOLOGIES S L DECLARACI N especificados cumplen con las normativas y Directivas CE mencionadas y sus enmiendas El equipo debe ser instalado probado y usado estrictamente de acuerdo con las instrucciones de Telstar y usado por personal totalmente capacitado Para el mantenimiento y reparaci n solo se deben usar piezas de recambio aprobadas por Telstar montadas seg n las This document hereby certifies that the above equipments comply with the standards and EC Directives listed and their amendments The equipment must be installed tested and operated in strict accordance with Telstar instructions and used by fully trained operators Only approved Telstar spares must be used for maintenance and repair Willem van Rheenen Responsable de Telstar Cold Storage Enero 2012 January 2012 Page 11 GUARANTEE CERTIFICATE SCALA TECHNOLOGIES S L guarantees the substitution of all the defect pieces in the period of TWO YEARS starting in the date of the expedition of the equipment This equipment has undergone satisfactorily all the tests and revisions Therefore any damage caused by transport wrong installation or inappropriate use is excluded of this guarantee This guarantee does not include any of the fungible materials comprised in the equipment such as filters fluids filaments etc The inappropriate use of the equipment excludes Scala of any responsibility for eventual direct or i
16. _ULT_Manual Page 17 4 3 2 UPRIGHT MODEL Back up system inlet on back optional on top of unit NS jj Control panel _ Sensor inlet on back of unit Locking device g nn Optional inlet on bottom of unit Optional recorder Condenser air inlet Scala_Scientific_ULT_Manual Page 18 4 3 3 INNER SUB LIDS FOR CHEST MODELS Double gasket 372x695x25 405x695x25 Scala_Scientific_ULT_Manual Page 19 INNER COMPARTMENT SHELVES FOR UPRIGHT MODELS 4 3 4 CO BACKUP TUBE Sensor cover Tray Double gasket nner door gasket 052 052 052 052 OO 662 662 662 662 66 ojojo H rd rd XI XI X Oren CO CO CO LO IN L XI XI X ojojo olojo O o o Sl o gt Oo Ln Ln Ln mm XI gt ON NTN ON N OO rd rd LN LN LN gt st Page Scala_Scientific_ULT_Manual 20 5 INSTALLATION INSTRUCTIONS 5 1 RECOMMENDATIONS AND PRECAUTIONS Before installing using or maintaining this product please be sure to read this manual carefully Failure to follow these instructions may cause this product to malfunction which could result in injury or damage This ULT freezer is designed to run at ambien
17. afreezer by pressing the On Off No Chapter 5 1 After entering the password correctly by default the password is 0000 or immediately if password has been disabled 3 Recommended set points a set point 80 C b cold alarm 83 C c warm alarm 76 C These set points are factory set and gives the freezer the optimum conditions for prolonged life 4 Recommended maintenance a We recommend the condenser filter is cleared of dust every month b We recommend that ice is removed from the door seals every month c We recommend a maintenance visit by your local dealer on an annual basis We wish you a quick and trouble free installation Scala_Scientific_ULT_Manual Page 3 Scala_Scientific_ULT_Manual Page 4 CONTENT 0 QUICK INSTALLATION GUIDE 1 WARRANTY NOTICE 2 SYMBOLS AND ABBREVIATIONS 3 GENERAL DATA 4 DESCRIPTION OF THE ULTRAFREEZERS 4 1 4 1 1 4 1 2 4 2 4 2 1 4 2 2 4 2 3 4 2 4 4 3 4 3 1 4 3 2 4 3 3 4 3 4 Dimensions Chest model Upright model Specifications _ Chest model specifications Upright model specifications Characteristics of temperature U445 SERIES Characteristics of temperature C370 SERIES Components 8 function description Chest model upright model Inner sub lids for Chest models Inner compartment shelves for upright models 5 INSTALLATION INSTRUCTIONS od 5 2 5 3 5 4 5 5 5 6 5 7 5 7 1 5 7 2 5 7 3 5 7 4 5 7 5 5 7 6
18. ate racks etc Scala Scientific ULT Manual Page 34 7 2 FIBERBOARD STORAGE BOXES AND DIVIDERS Thick Plastified Card box Material Easy to remove cover External Dimensions External dimensions of 2 inch boxes model PP0060 133x133x49 mm DxWxH External dimensions of 3 inch boxes model PP0061 133x133x77 mm DxWxH Internal Dimensions Internal dimensions of 2 inch boxes model PP0060 124x124x45 mm DxWxH Internal dimensions of 3 inch boxes model PP0061 124x124x70 mm DxWxH Possible dividers Dividers are also made of plastified card box Height of all dividers is 35 mm Model Description PP1049 Storage box divider 7 x 7 PP1064 Storage box divider 8 x 8 PP1081 Storage box divider 9 x 9 PP1100 Storage box divider 10 x 10 Scala_Scientific_ULT_Manual Page 35 7 3 CO AND LN2 BACK UP SYSTEM OPTIONAL WARNING N Always use a cylinder which is equipped with siphon tube for withdrawal liquid from the bottom of the cylinder CO cylinders must be kept at room temperature to function properly LN bottles are functional at any reasonable temperature If a CO2 or a LN2 cylinder falls and a valve is knocked off the cylinder becomes a deadly missile Transport the cylinders in a hand truck or cart with secure chain ties for the cylinder After connection of the cylinder to the system secure the cylinder with chains to a solid object The liquids used for these back up systems
19. ct to mechanical vibration or shock Operating temperature 5 C to 33 C Recommended performance conditions are ambient of 18 220C Operating moisture below 80 in case that the max operating temperature is 33 C it should be below 57 Allowance of supplying voltage change lower than 1096 In case you install the unit other places than mentioned above the unit cannot operate properly HOW TO INSTALL 1 Keep the distance between the wall and the backside of the unit 15cm or more please use the standard supplied distance pins Do not install the unit in an uneven position Make the unit fixed with fixing screws on the sleepy floor The ventilation should not be obstructed Scala Scientific ULT Manual Page 23 5 7 ELECTRICAL CONNECTIONS AND SERVICE CONNECTIONS 5 7 1 POWER SUPPLY 1 To ensure trouble free connection connect the plug firmly in the power socket 2 Don t connect the plug of the unit together with plug of other units in the same socket Make sure that the power supplying cord is not folded and pressed 4 If you use an extension wire it should has capacity above 250V 15A and not longer than 3m 5 This unit is exclusively designed for 205 240V 50Hz please check the operating voltage before use 5 7 2 HOW TO EARTH 1 For security reasons the unit should be earthed 2 If the power socket is fitted with earth rod 230V please check the outlet for earth before use 3 In cas
20. d 5 7 6 RS485 PORT The RS485 Port can be used to monitor parameters and alarms on your PC by using the Scala software and a RS485 to RS232 cable with converter Scala_Scientific_ULT_Manual Page 26 6 OPERATING INSTRUCTIONS 6 1 CONTROL KEYBOARD DISPLAY The following elements are found in the control keyboard A On Off Button e Pressing when the freezer is turned off It goes to the Password Request screen When entering the correct password it goes to the Main Operation screen e Pressing when the freezer is turned on It goes to the Password Request screen When entering the correct password the cabinet switches off B Navigation buttons a and G They move the cursor though all different function icons and select them The icon pointed inverts its colours If the selected item is a numeric field the navigation buttons increase decrease and validate the value C Graphic display amp leds Scala Scientific ULT Manual Page 27 It shows alarm messages operating graphs function icons and all the information required in freezer user communication The colour or each led are Green Working mode Red Power fail indicator Acoustic alarm will be activated Yellow Alarm mode Alarm message will appear And an acoustic alarm is activated together with the yellow light Below is an explanation of the different system screens 1 Password Request screen by default 0000 T
21. e the power socket is not fitted with earth rod 230 V please contact your local supplier Scala Scientific ULT Manual Page 24 5 7 3 MAIN POWER CONNECTIONS RS485 Port CO2 LN2 backup Remote alarm Volt free contacts Main socket When the power supply is checked and the unit is earthed you can switch on the unit 5 7 4 DOOR ALARM The door alarm can be used in combination with the CO2 backup system It is a safety feature to make sure the operator does not get into contact with liquid CO2 LN2 in case of opening the door of the freezer Always connect the CO2 LN2 backup system to the door alarm connection at the back of the freezer For safety measure resistance on the contacts with Ohm metre 1 Do contact 1 amp 2 show resistance Connection should be a closed loop normal conditions closed loop door open conditions open loop 2 Open door lid 3 Do contact 1 amp 2 show unlimited resistance Connection should be an open loop Scala_Scientific_ULT_Manual Page 25 5 7 5 REMOTE ALARM The remote alarm is a volt free dry contact which will alarm in case of any alarm is activated Male and female alarm plug 603309 2 COM 2 COM 1 NC 1 NC Normal Conditions Alarm Conditions In normal conditions the relay is always open which means connection between COM and NO normally open In case of alarm the relay is closed which means connection between COM and NC normally close
22. g on the chart paper If it is not then carefully adjust the pen arm to establish contact with the paper 7 4 2 REPLACEMENT OF PEN Recorders that are equipped with fibre tipped cartridge pens will have a cartridge that is colour coded red to designate pen number one 1 The pen cartridge is securely fastened to the metal pen arm using a special U clip tab For ease of replacement it is suggested that the two 2 screws that hold the pen arm be loosened and the pen cartridge and metal pen arm be removed as an assembly Refer to the following figure next page for the location of the pen arm screws Scala Scientific ULT Manual Page 38 PEN ARM BATTERY STRAP BATTERY SCREWS s HOLDER TRENT lJ S voLT KI l BATTERY PEN CAP GREEN 09 CHART i ED HUB ee g INDICATOR lt PEN ARM CHAIN POSITION 1 E E 7 92 TIME LINE U CLIP TAB E l CHART d 4 PAPER PEN CARTRIDGE GREEN LED gt 0 CHART INDICATOR PLATE POSITION 2 Unsnap the plastic U clip tab of the pen cartridge from the metal pen arm remove and discard the old pen cartridge Replace the new cartridge by opening the hinge and snapping it securely around the metal pen arm Refer to the figure above 7 4 3 PEN ARM CALIBRATION To check and or adjust the recording pen calibration to the outer most temperature graduation of the chart press and hold the c
23. hange chart button 3 until the pen begins to move off of the chart Once the pen has moved off of the chart again press and hold the change chart button 3 until the pen begins to move back onto the chart The pen should briefly stop at the outer most temperature graduation of the chart before continuing onto the chart to begin recording If the pen does not stop exactly at this location on the chart it can be adjusted or calibrated by using the left 1 or right 2 arrow buttons When the pen moves back onto the chart and briefly stops you will have approximately five 5 seconds in which to adjust the pen s position using the left and right arrow buttons Each time the chart paper or fibre tip pen cartridge is changed you should make sure that each pen stops at the outer most temperature graduation of the chart paper Otherwise this pen offset will cause the unit to record an incorrect temperature on the chart Scala_Scientific_ULT_Manual Page 39 7 4 4 TEMPERATURE RECORDER CALIBRATION CHECK This recorder has been accurately calibrated at the factory Before making any adjustments this instrument should be in service for 24 hours Thereafter if any adjustment is required perform the following procedure 1 Place a Certified Test Thermometer s in a solution bottle s alongside the recorder s sensor probe s 2 Once the temperature has levelled out compare the position of the pen on the recorder to the test t
24. hermometer s reading CHANGE CHART 3 If an adjustment is required use the left 1 and right 2 arrow push buttons on the recorder to calibrate or move the pen s position on the chart to correspond to the temperature of the solution The arrow buttons must be held for approximately five 5 seconds before the pen will begin to move 7 4 5 BATTERY BACK UP The green LED light remains a constant green colour indicating that both the battery and the main power to the unit are good If the AC power were to fail or the battery becomes weak then the green LED light will begin flashing indicating that either you have lost the main power to the unit or it is time to replace the battery Having a 9 volt DC battery back up in place will allow the recorder to continue working normally for approximately 24 hours in the event of a power failure 7 4 6 BATTERY LOCATION AND REPLACEMENT To replace the battery first open the recorder door The battery will be located in the upper right hand corner of the unit Note Use only NEW 9 volt alkaline replacement batteries Scala Scientific ULT Manual Page 40 7 4 7 CHART RANGE SELECTION The recorder that you are using has a range sticker that lists several temperature ranges mounted on the front of the chart plate This recording unit has the option for the user to select from several temperature ranges that are programmed into the recorder Note The chart paper that i
25. l High pre 60 80 psi Soak Sight Low pre 60 80 psi Leak Detector Welding on the Manifolds leaked part Vacuum pump Below High pre 70 80 psi beue vene Ke Low pre 70 80 psi i i Soak Sight R290 Yes Leak Detector n Charging refrigerants Necessary tools Manifolds Refrigerant R290 R170 Welding machine check pressure Welding on the gt Manifolds leaked part Vacuum pump High High normal normal pressure pressure High pre 130 150 High pre 140 160 gt Clean condenser psi psi Xen Below Normal pressure Refill a little bit R290 If ambient 20C chamber temp 80C i Checking temp amp pressure 1st high 130 150 psi low 5 5 psi 8 3 2 COMPRESSOR IS RUNNING BUT WITH WRONG TEMPERATURE After min High normal pressure 10 High Normal pressure After 10 min Below normal pressure Below Normal pressure Checking temp amp pressure Remark Pressure of 1 and 2 pressures may differ according to ambient amp chamber temperature Scala Scientific ULT Manual Page 53 8 3 3 REFRIGERATION DRAWING AND PRINCIPAL OF THE CASCADE REFRIGERATION SYSTEM Upright Igloo s capllery tube 0 MAMAM am Ga WT Aw caplllary tube 5 HEEL DOA DODOA DOA MID e HLI A ADORA KAN AN NL FIS m CN e Chest Igloo s Scala Scientific ULT Manual Page 54 Scala_Scie
26. litv arising All maintenance actions on this equipment must be performed by a qualified technician who is familiar with the proper maintenance procedure required for this equipment In case these actions are not carefully carried out as a result the equipment can work in abnormal conditions Scala_Scientific_ULT_Manual Page 8 4 DESCRIPTION OF THE ULTRAFREEZERS 4 1 DIMENSIONS 4 1 1 CHEST MODEL Exterior Dimensions Interior Dimensions Model No WxDxH WxDxH Capacity L C370 1267x872x1073mm 725x660x784 mm 370 C620 1747x872x1073mm 1200x660x784 mm 620 C820 2147x872x1073mm 1600x660x784 mm 820 Scala Scientific ULT Manual Page 9 4 1 2 UPRIGHT MODEL W Exterior Dimensions Interior Dimensions Model No WxDxH WxDxH Capacity L U445 705x901x1991mm 490x606x1500mm 445 U570 845x901x1991mm 630x606x1500mm 570 U830 1135x901x1991mm 920x606x1500mm 830 Scala Scientific ULT Manual 10 Page 4 2 SPECIFICATIONS 1 Hermetically sealed cooling system with very durable compressors Z Cold air loss is minimized by insulated inner doors Efficient evaporator with maximum contact with walls for fast cooling O down 80 mm polyurethane foamed insulation Heavy duty casters with built in adjustable stands Cabinet with round corners for easy cleaning 2 Built in access ports Very user friendly control panel at eye level Qo ea Al
27. nd running the 86 Igloo CXXX Series with a set point of 80 Our freezers are produced tested and calibrated on this temperature set point With this set point the freezer is performing in most optimal conditions and guarantees the longest lifetime for compressors In case of using set points with colder temperature will decrease compressor lifetime and does not have any effect on better conditions for your samples Scala_Scientific_ULT_Manual Page 12 4 2 2 UPRIGHT MODEL SPECIFICATIONS Igloo Igloo Igloo U445 U570 U830 internal full 304 stainless steel interior TECHNICAL SPECS UNIT Cabinet material external Polyester coated exterior Sample throughputs ES 2 standard ports 2 pre cut Shelves inner doors KS standard 5 inner doors 4 shelves eight Electricity 220 240 V 50 Hz Igloo Igloo Igloo TEMPERATURE SPECS UNIT U445 U570 U830 mperature range oC up to 86 nidi k a factorv set point is 80 We recommend running the 86 Igloo UXXX Series with a set point of 80 Our freezers are produced tested and calibrated on this temperature set point With this set point the freezer is performing in most optimal conditions and guarantees the longest lifetime for compressors In case of using set points with colder temperature will decrease compressor lifetime and does not have any effect on better conditions for your samples Scala_Scientific_ULT_Manual Page 13 4 2 3 CHARACTERISTICS OF TEMPERATURE U445 SE
28. ndirect damages of any nature Likewise this guarantee will be void if pieces other than the ones supplied by SCALA TECHNOLOGIES S L are used for the repairing of the equipment NOTE This guarantee is valid for all the equipment unless otherwise stated In order to obtain any information about this guarantee please contact with our Sales Department Scala_Scientific_ULT_Manual Page 62
29. ntific_ULT_Manual Page 55 Principal of Cascade Refrigeration System The cascade refrigeration system is designed to use different refrigerants which have different boiling points in one system in order to reach ultra low temperatures 609C down to 150 C range Therefore a cascade cooling system needs two separate cooling systems compressors Each cooling system compressor works simultaneously The first stage compressor exists to condense the high pressure line of the second stage compressor The second stage compressor is the main system which maintains the ultra low temperature of the freezer The refrigerant of the first stage compressor is compressed This compressed refrigerant is cooled by the air cooled condenser The refrigerant evaporates in the evaporator by a capillary tube low pressure low temperature The heat exchanger is cooled down to less than 40 C This heat exchanger is now used to condensate the compressed refrigerant coming from the second stage compressor Because we use a liquid separator liquid refrigerant is prevented from sucking into the compressor The second stage refrigerant is compressed in the second stage compressor After passing the oil separator it is condensed in the heat exchanger cooled to 40 C by the first stage cooling system The condensed refrigerant goes through the second stage capillary tube Because of this capillary tube low temperature low pressure it is evaporated in
30. nts 8 4 Registration of service 9 CONTACT INFORMATION 10 EC DECLARATION OF CONFORMITY 11 GUARANTEE CERTIFICATE Scala_Scientific_ULT_Manual 41 42 42 43 43 44 46 52 52 52 54 57 59 60 61 62 Page 6 1 WARRANTY NOTICE IMPORTANT WARRANTY AND ROOM TEMPERATURE This unit is equipped with automatic monitoring of ambient temperature alarm 1 In case this WarmMark is removed from the product warranty will be terminated 2 In case the room temperature climbs above 33 C for a long period of time a red colour gradually moves through the window of the WarmMark Indicator Every 31 C 88 F window which is indicated red will decrease warranty period with 1 year Scala_Scientific_ULT_Manual Page 7 2 SYMBOLS AND ABBREVIATIONS Abbreviations used in this manual V Volts h hours A Amperes Hz Hertz W kw Watts kilowatts dB Decibel mm cm Millimetres centimetres oC celsius m metres k Kilgarami ULT Ultra Low Temperature g g Freezer 3 GENERAL DATA WARNING N This Manual must be read and understood before its installation maintenance and operation of the equipment All the safety instructions given in the Manual must be followed Anv use or application failing to complv with the recommendations expressed in the Manual mav cause danger and loss of rights to manufacturing guarantee as well as freeing the manufacturer from all responsibi
31. on should be stopped automatically to protect the user r N For safety for our Freezers we recommend to use our CO backup system always in combination with our pressure equalization valve PR102 to prevent over pressure in the cabinet Scala_Scientific_ULT_Manual Page 37 7 4 CHART RECORDER OPTIONAL 7 4 1 CHANGING THE CHART PAPER Press and hold the change chart button 3 for approximately one 1 second until the pen begins to move to the left of the chart and then release the button Wait until the pen has moved completely off of the chart To remove the chart paper unscrew counter clockwise the chart hub knob at the centre of the chart Remove the old chart paper and position the new one so that the correct time line coincides with the time line groove on the chart plate Refer to following figure for the location of the time line groove BATTERY PEN ARM EWS STRAP BATTERY y HOLDER TRENT m Q 8 voLT EN al q BATTERY Y CHART GREEN del HUB INDICATOR CHAIN POSITION 1 TIME LIME GROOVE CHART I PAPER GREEN LED 4 CHART INDICATOR PLATE POSITION 2 Re attach the chart hub knob and screw securely by hand against the chart Press and hold the change chart button 3 again for approximately one 1 second until the pen begins to move back onto the chart and then release the button Check to make sure that the pen is markin
32. r the temperature is set in a right way O Please check whether the unit is too close to a heating object O Please check whether the rear side of the unit is too close to the wall O Please check whether the condenser is blocked by dust Remedy wipe off the dust by soft brush O Please check whether a big amount of test sample is inserted within a few hours Remedy this is a temporal phenomenon please just wait 2 Loud running noise O Please check whether the floor is even O Please check whether the noise is coming from the compressor The noise of the compressor is bigger than that of household refrigerators O Do you hear a turbo sound This unit is equipped with a fan motor which is used for air cooling system when the fan motor is running you can hear some noise O Do you hear a knocking sound This sound originates from the parts of the unit when they are expanded or shrunk O Do you hear water stream The unit is equipped with circulation of refrigerant You can hear the refrigerant stream through the circulation It is not a technical problem 3 Alayer of ice has formed in the inside wall of the deep freezer O Put the samples with distances for good ventilation O If a sample contains much moisture then put a top on it or keep it in wrap O Please check whether the door is closed O Please reduce the times to open the door Scala_Scientific_ULT_Manual Page 59 9 CONTACT INFORMATION In case of
33. s used on the recording unit must match the range that is selected for the recorder Otherwise the pen s position on the chart paper will not correspond to the temperature that is measured Also if the pen moves to the centre or outer edge of the chart and remains there while the unit is powered on then this maybe an indication that the current range that is selected for the unit is not correct The recorder has a built in safety mechanism that will always move the pen to the highest temperature on the chart when the current temperature that is measured is not within the selected range This recording unit has five 5 user selectable ranges programmed into the unit To select from one of the available ranges follow these instructions After the recording unit has been powered on and is operating normally recording temperature press and hold the change chart button 3 until the pen arm begins to move off of the chart Once the pen has moved off of the chart press and hold the left arrow 1 or right arrow 2 button for approximately five 5 seconds and then release the button The green LED light will begin flashing one 1 time if range 1 is selected or will flash two 2 times if range 2 is selected and so on Press the left arrow button 1 to increase the range number or press the right arrow button 2 to decrease the range number that is selected for the recorder When you have finished selecting the range press
34. t temperature of 5 C till 289C This unit is a storage freezer Freezing large quantities of water or high water content items will temporarily increase the unit temperature and will cause the compressors to operate for a longer period of time Using this freezer as a rapid freezer may cause damage to refrigeration system or compressors Avoid opening the door for longer periods of time since cold air will go out of the chamber quickly room air may cause frost and ice built up in the chamber and around the door The sub lids of the chest freezer are necessary to maintain set temperature do not remove these sub lids or leave the freezer open without sub lids for a period of time Upright models have HDPE inner doors as extra safety to prevent cold air getting out and warm air getting into the freezer Do not position the unit into direct sunlight or near a heating device Connect the unit to the correct power source Incorrect voltage can result in severe damage to the equipment Make sure this unit is properly grounded Do not connect the unit to overloaded power lines 5 2 PACKING TRANSPORT When our products leave our warehouse they have been tested thoroughly and packed with precision At delivery examine the packing while the forwarder is present Check the ShockWatch in case of visible damage to packing or ShockWatches indicated red In this case mark this on the shipping documentation while the forwarder is present and state an
35. view screen Scala_Scientific_ULT_Manual Page 32 6 Week view screen It shows chamber temperature graph in a several days view and on bottom the date min max T type of alarm happened in selected date and maximum ambient T value Previous day E FH Goes to Main Operation screen Z Day view screen It shows chamber temperature graph of the current day It shows on bottom the date minimum maximum temperature type of alarm happened in selected date and maximum ambient temperature value Week view Previous day A 4 Next dav G ir Goes to Main Operation screen 6 2 DISCONNECTION To stop the ULT it is necessary to push the On Off button Chapter 5 1 to access the Password Request screen After entering the correct password the ULT will be switched off Scala Scientific ULT Manual Page 33 7 ACCESSORIES 7 1 ALUMINUM STORAGE RACKS FOR UPRIGHT FREEZERS boxesFit in freezer model total Box size rack 2 50mm E U445 15 racks U570 20 racks U830 30 racks BB irme U445 15 racks U570 20 racks U830 30 racks Side opening 2 50mm C370 20 racks C620 32 racks C820 44 racks i Ia C370 20 racks C620 32 racks C820 44 racks 2 50mm U445 15 racks U570 20 racks U830 30 racks Sliding shelves d 3 75mm U445 15 racks U570 20 racks U830 30 racks all other racks are available on request micro pl
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