Bioscreen User manual
Contents
1. The most important areas to be cleaned are the incubator and the sample compartment Clean the incubator thoroughly some white residue from the Honeycomb plates which is difficult to clean can remain on the corners after the cleaning If there has been spillage of any harmful substances take the incubator tray up and clean also underneath of the incubator The incubator tray is attached with two hexagonal screws on both ends of the tray large one on the left side and smaller one on the right side The carriage can be manually moved to the left in order to clean the bottom part of the sample compartment Bioscreen C Certificate of Decontamination Serial Number 110001 Owner company Contact Person Contact Phone Contact FAX Contact e mail Oy Growth Curves Ab Lid Peltopohjankatu 2 Date _ _ 21280 Raisio Finland tel 358 2 435 1800 Include this document with the instrument packaging ___fax 358 2 435 1818 CERTIFICATE OF DECONTAMINATION Decontamination Information Materials used in unit O Carcinogen O Chemical Hazard O Bacteria O Virus O Fungus O Toxic Substance O Pathogen O Radioactive O Non Hazardous Substance O Other specify Decontamination Procedure Used If pathogen or radioactive please check all that applies O HIV O Hepatitis B O Retro Virus O Alpha O Beta O Gamma O S35 Isotope O P33 Isotope O P32 Isotope This unit is certified as having been reviewed by a compete2. C across a Honeycomb 2 plate Heating time from 20 C to 30 C 30 min Dispensing temperature Room temperature Heat transfer fluid heating cooling liquid Mixture of monoethylene glycol and water 1 1 24 Microbiology Reader Bioscreen C User s Manual 8 5 Honeycomb 2 Plates Capacity Maximum volume Material Sterilizing method 100 wells per one Honeycomb plate Use 1 or 2 plates per experiment 400 ul Honeycomb well Polystyrene Gamma radiation Caution Honeycomb 2 plates are not autoclavable 8 6 PC and Printer Requirements PC Operating Software Printer Intel Pentium capable of running Microsoft Windows 2000 or later operating system For Growth Curves EZExperiment OD sample collector software Windows 2000 or later is required Windows 95 98 or ME cannot be used Please have a look at our home page at www bioscreen fi Norden Logic Professional supports Microsoft Windows 2000 2003 XP XP64 Vista Vista64 MAC OS X and Linux It requires at least Intel Pentium 500MHz or faster AMD processor family 500MHz or faster The basic memory requirement is 512MB or more Please refer to Norden Logic s home page for the latest information regarding requirements etc at www nordenlogic com support html Any CSV reading software can be used for example MS Excel for Growth Curves EZExperiment OD collector for result analysis and printing This depends on which software you select for OD
3. If anything is not clear or you need help please contact your Bioscreen sales representative Ed Microsoft Excel BioscreenExperiment_405 csv File Edit View Insert Format Tools Data Window Help OSHA S6RY SBOBS O Sx wm Hh Fh im Arial 10 B z ule BS 18 8 Time D E B G 1 dwell 101 Well 102 Well 103 Well 104 Well 105 Well 106 Wel 2 00 00 04 0 482 0 464 0 467 0 475 0 866 0 854 3 00 00 34 0 482 0 462 0 466 0 473 0 066 0 852 4 00 01 04 0 461 0 462 0 467 0 473 0 865 0 851 5 00 01 34 0 481 0 462 0 466 0473 0 865 0 85 6 00 02 04 0 481 0 462 0 466 0 472 0 865 0 851 7 00 02 34 0 482 0 462 0 466 0 473 0 866 0 851 6 00 03 04 0 482 0 463 0 467 0474 0 865 0 851 9 00 03 34 0 481 0 462 0 466 0 473 0 866 0 851 10 00 04 04 0 479 0 462 0 463 0 474 0 865 0 851 11 00 04 34 0 476 0 462 0 466 0 473 0 066 0 05 12 00 05 04 0 472 0 461 0 466 0 472 0 064 0 849 13 00 05 34 0 467 0 46 0 464 0 472 0 863 0 848 14 00 06 04 0 459 0 46 0 466 0 472 0 862 0 848 15 00 06 34 0 45 0 459 0 465 0 471 0 862 0 847 16 00 07 04 0 445 0 459 0 463 0 471 0 06 0 845 17 00 07 34 0 445 0 457 0 462 OA 0 06 0 845 18 00 08 04 0 445 0 457 0 462 O47 0 859 0 843 19 00 08 34 0 445 0 455 0 46 0 468 0 858 0 842 20 00 09 04 0 445 0 455 0 459 0 468 0 857 0 842 21 00 09 34 0 445 0 453 0 459 0 467 0 856 0 04 a nn 4an na N AAE N AZA N AET N ARR n oce
4. With a pipette take up a few milliliters of heat transfer fluid and dispense it through the hole from which you removed the plug Keep dispensing until the level in the fluid window is well above the minimum e Screw back the plug Press STOP on the keypad Note When the pump is on some fluid can leak out of the hole Please wipe it up Caution The heat transfer fluid contains ethylene glycol which is harmful if swallowed Keep the bottle clearly labeled and wash your hands after the use of the liquid 2 2 4 Running a temperature check After checking the fluid level switch the Bioscreen ON Wait until 00 appears on the LED display Press ENTER 22 ENTER 18 ENTER on the keypad Note This instructs the instrument to operate at 18 C Feel free to select another temperature but the instrument can only operate within 6 degrees below ambient If lower operating temperatures are required the instrument must be run in a cold room A loud noise caused by the start of heat transfer liquid circulation will be heard for a few seconds It takes approximately 30 minutes to reach the programmed temperature Please also note that all temperature settings are done through a computer and not on the keypad in the future real experiments 2 3 Installing the PC 2 3 1 Connecting to PC Connect the cable between the Bioscreen and your computer s COM port Alternatively you can use the attached USB to RS 232 cable if your PC isn t equipp
5. an optical fiber which leads the light upward to the lens of the measuring device After passing through a Honeycomb plate well the light enters the detector The measuring device is moved along the Y axis while the incubator tray with the plate is moved along the X axis This enables rapid measurement of all wells in the plate The incubator consists of an incubator tray a cover of the incubator tray and a temperature control system After filling the plate with experimental materials the top cover is placed manually on the top of the incubator tray and properly closed During the incubation and measuring the incubator tray cover remains in place The temperature control system maintains the incubation temperature set by the program The temperature control system consists of a peltier element Monoethylene glycol and water mixture 1 1 is used as a heat transfer liquid The incubation temperature is continuously monitored and saved so that the user can read it if wanted 4 2 Planning an Experiment Bioscreen C allows you to run 200 samples at a time At elevated temperatures thermophilic fermentation the growth curves may appear in 2 3 hours Bacteria such as E coli will develop a growth curve in 4 18 hours at 37 C In Bioscreen C the growth of a microorganism becomes visible twice as fast as in a petri dish If a continuous shaking feature is used the growth may become visible even 4 times faster than in a solid medium At refrige
6. and then click Apply in the Regional and Language Options window Double check the clock in the lower right hand corner of your desktop It should now be changed to a 24 hour clock 2 4 System Check 2 4 1 Inserting a Honeycomb plate Open the right front lid of the instrument examine the black incubator tray cover Press the spring catch towards you where you see the markings gt OPEN Lift the incubator tray cover by pushing it back and up Remove the Honeycomb plate from the plastic pouch and place it to the incubator tray Plate number one is to be placed to the left and plate number two to the right side Make sure that the cut off corner of the plate is in the left front of the tray Carefully replace the incubator tray cover making sure that the bottom hinges fit through the slots in the back of the cover and close the lock on the front side CAUTION Make sure that the incubator tray cover is firmly seated in place Otherwise serious damage can occur and the lenses in the instrument can be destroyed First place the cover on the hinges in the back where the white arrows point then gently push down and lock the front part marked with a white arrow and the text OPEN Always double check this before turning the instrument on See Figure 4 and Figure 7 for the position of the lenses 2 4 2 Setting the system check program Click on the EZExperiment icon to open the program A window with settings will appear Enter the number
7. at a time Conventional readers read a 96 well plate in one run but Bioscreen C can measure 200 results at a time e Unique versatility and reliability Other readers are not designed for microbiology work or for long term use with an incubating time of up to 1600 hours Bioscreen C has proven its versatility for a wide range of applications in over 500 sites worldwide with some units in use for over 20 years 7 8 Test Example Bioscreen C is an optical mechanical equipment for measurement of turbidity of samples kinetically To understand if Bioscreen C is capable of performing any particular test it is necessary to know if the test involves a turbidity or color change during growth in broth All microorganisms bacterial fungal yeast algae produce turbidity by multiplication in broth Most of the test tube tests where the turbidity or color change occurs can be made in the mini test tubes of Bioscreen C In addition to multipurpose research work the Bioscreen C is also used for routine work e g for measurement of the amount of bacteria in samples food QC bacteriuria etc and for microbiological assay tests of vitamins antibiotics or other chemicals Among many other studies the Bioscreen C is excellent for measuring the effect of antibiotics on microorganisms in vitro For example Let s imagine that we need to check in vitro the effect of 5 new antibiotics on 10 different bacteria For comparison 5 old antibiotics are also
8. e Norden Logic Professional software downloaded from the Internet e Honeycomb plates consumables e PC and a printer supplied by a customer The incubation temperature can be set from 1 to 60 C in steps of 0 1 C The measurement is done kinetically using the principle of vertical photometry All functions are controlled by computer software according to the parameters entered by the user The maximum capacity is 200 samples per run Honeycomb 2 plates are sterilized by gamma radiation and packed in individual bags The instrument can handle one or two plates at a time Each well of the plate is an individual test vessel so 200 microbiological growth monitoring experiments can be performed in a single run 3 2 Applications Bioscreen C monitors the growth of microorganisms by measuring turbidity of liquid growth medium in the well These measurements are done kinetically and recorded as optical density measurements These values are recorded by PC Bioscreen C can measure growth of any organism that will cause turbidity in its growth medium This includes bacteria yeast fungi cells phage etc Some applications for the system include microbiology research development of new antibiotics protein expression development of new preservatives optimization of fermentation processes development of waste treatment processes bioassays kinetic MIC food QC cell culturing growth medium development tests to study effects of pH or chem
9. n onan Figure 2 Growth OD results presented in MS Excel Microbiology Reader Bioscreen C User s Manual 2 GETTING STARTED 2 1 Unpacking These are the elements you will find in your Bioscreen shipping carton 2 1 1 Supplement pack e Black plastic case containing the filter wheel e Dust cover for Bioscreen e Power cord for the instrument e 2 spare fuses in a small carton 2 1 2 Bioscreen folder e Bioscreen User s Manual e Bioscreen Software alternatives EZExperiment software CD Instructions how to download Norden Lab Professional Norden Lab Network or Norden Lab Web Bioscreen C software editions from the Internet e Packing list Discrepancy Report Quick Start Instructions Warranty Statement Warranty Registration Form and other Bioscreen documentation 2 1 3 Protective packaging for the instrument e Lift the Bioscreen instrument with protective foam corners out of the carton e Remove foam corners and save with other packaging The box may be useful for future transportation service etc e Remove protective poly film cover from the instrument 2 1 4 Accessory pack below the instrument e Connector cable instrument to PC amp USB cable Spare halogen lamp Tool packet A bottle of heat transfer fluid 4 Honeycomb plates Spare locking piece Spare ground piece 2 2 Instrument Tests 2 2 1 Inserting the filter wheel Remove the filter wheel from the black box open the left rear lid over the lamp and very
10. of samples 2 duration of the run 2 min and the interval 20 sec Press START and another screen will come up Select the folder where you want the data to be stored preferable a local one not on the server and then press ENTER Please remember to always read the separate software instructions Note If you get an error message Bioscreen not found try another COM port setting from the settings menu Or try using the USB RS232 cable instead Remember to install the drivers 2 4 3 Examining the results EZExperiment will signal the instrument to start running The software will collect the data When 2 minutes is up there will be seven OD readings with measurement times These will automatically be exported to an MS Excel file and be displayed there You may choose a line graph from MS Excel to chart the results All values should be the same within 0 003 OD readings Note Readings may vary if the measurement is done immediately after the instrument has been turned on A minimum of 30 minutes prewarming with the instrument turned on is recommended before starting the measurements Microbiology Reader Bioscreen C User s Manual 3 SYSTEM DESCRIPTION 3 1 Overview The Bioscreen C Reader System is a fully automated instrument developed to perform a wide range of microbiology experiments The system consists of e Bioscreen C reader which includes an incubator and a measurement units e EZExperiment software
11. the minimum e Screw back the plug Press STOP on the keypad Note When the pump is on some fluid can leak out of the hole Please wipe it up Caution The heat transfer fluid contains ethylene glycol which is harmful if swallowed Keep the bottle clearly labeled and wash your hands after the use of the liquid 5 4 Replacing the Fuses e Switch the power off e Disconnect the power cord from the mains e The fuses are on the back of the Bioscreen in the power cord block The fuseholder can be removed after the lower cord is detached from the block The fuseholder is attached with two small clips which are released by pressing them towards each other e Change the blown fuses to new ones and put the fuseholder back into the power cord block 14 Microbiology Reader Bioscreen C User s Manual e Connect the instrument to the mains and switch it on CAUTION Replace the blown fuses only with fuses with the same rating shown on the serial plate of the instrument Failure to do this may cause instrument damage and or personal injury 5 5 Replacing the Lamp CAUTION Do not bend the lamp pins Do not touch the reflective surface of the bulb CAUTION LAMP MAY BE VERY HOT Do not touch with bare hands Switch the power off Disconnect the power cord from the mains Open the cover of the lamp cabinet Open the two screws of the lamp connectors with the tool provided Lift the lamp holder upwards and remove the lamp Install th
12. 3 Optical system A halogen lamp produces light which then passes through the chopper wheel The light path is turned 90 degrees by a mirror Light then passes through the filter wheel The correct filter is chosen by making the appropriate entry during the experiment s set up In most cases a wide band filter is used to measure turbidity Filtered light moves through an optical fiber to the lens assembly in the measurement compartment below the Honeycomb plates Light passes through the bottom of each well and results are collected by the detector The detector is on a retractable arm which moves into the right places above the plate Detector UV mirror Chopper wheel 2 Honeycomb plates with covers 200 sample wells Lens Optical fiber Filter wheel Halogen lamp Figure 4 The optical system Microbiology Reader Bioscreen C User s Manual 4 OPERATION 4 1 Principles of Operation The changes in turbidity or the formation of color in the culture medium due to the growth of microorganisms is measured kinetically with a vertical photometer In this technique a light beam passes up through the bottom of the plate well through the sample suspension to the detector In the optical arrangement the halogen lamp emits a light beam which is carried through the chopper and a UV mirror to the filter wheel Fig 4 The interference filters of the wheel are selected with the PC software The filtered beam enters
13. C User s Manual 27 12 Appendix Bioscreen C Service request Serial Number 110001 Owner company Contact Person Contact Phone Contact FAX i Contact e mail Oy Growth Curves Ab Ltd Peltopohjankatu 2 Date __ 21280 Raisio Finland tel 358 2 435 1800 Include this document with the instrument packaging ___ fax 358 2 435 1818 4 25 3 1 Instrument is sentfor Q Maintenance Service Q Repair QO Warranty Repair Other specify 2 Specify and describe the problem maintenance request 3 Preferred type of contact for questions number 1 2 3 in the order of preference Please add the contact information as well _ e mail Phone FAX 4 Specify the return address for serviced repaired instrument Signature Date Instructions for Service Request and Decontamination Dear customer please follow this operating procedure to ensure the safety of our employees and expedite the return repair of the equipment Please fill in the Service Request completely and include it with the instrument Describe the problem in detail Please use separate appendix if necessary Fill in the Decontamination declaration form Have the person responsible for verifying decontamination sign and date the Certificate of Decontamination AND the Safety shipping label Attach Safety shipping label to the exterior of the packaging Take not
14. T SIGMASTAT TABLECURVE PEAKFIT LABWORKS SCIENTIST or others Curve drawing can be done in MS EXCEL or with any of these other curve plotting software programs The Norden Logic Professional software is a complete system with both calculation and graphs of the measurements together with a wide list of many other functions Please have a look at it and try it for free during the 30 days free trial period Disclaimer All use of the EZExperiment software is done entirely at the users own risk Growth Curves Ltd assumes no liability for any problems the user of the software might encounter including but not limited to any loss of data samples or any of the similar Growth Curves Ltd assumes no liability for software developed by other companies including without limitation software of Norden Logic Oy Any and all claims relating to software shall be addressed to the licensor or developer 12 Microbiology Reader Bioscreen C User s Manual 5 MAINTENANCE 5 1 Maintenance Steps amp Frequency During normal operation we recommend the following maintenance procedures e Cleaning of lenses Weekly more often if necessary e Cleaning of the filter wheel Weekly e Replacing the fuses As needed e Replacing the lamp As needed e Adding the heat transfer fluid As needed Check weekly e Decontamination Before service call Please see Appendix A 5 2 Cleaning WARNING Bioscreen can be used with substances containing or prod
15. User s Manual Bioscreen C Oy Growth Curves Ab Ltd rsion 2 1 2009 Table of Contents 1 How to Use this Manual 2 Getting Started 2 1 Unpacking 2 2 Instrument Tests 2 3 Installing the PC 2 4 System Check 3 System Description 3 1 Overview 3 2 Applications 3 3 Software 3 4 Bioscreen Reader 4 Operation 4 1 Principles of Operation 4 2 Planning an Experiment 4 3 Pre start Checklist 4 4 Start up 4 5 Running an Experiment 4 6 Data Handling 5 Maintenance 5 1 Maintenance Steps amp Frequency 5 2 Cleaning 5 3 Checking the Heat Transfer Fluid 5 4 Replacing the Fuses 5 5 Replacing the Lamp 6 Troubleshooting Guide 6 1 Optical Problems 6 2 Temperature Problems 6 3 Operational Problems 7 About Bioscreen 7 1 Product History 7 2 System Description 7 3 Comparison with Manual Techniques 7 4 Bioscreen Limitations 7 5 Applications 7 6 Capabilities of Bioscreen C 7 7 Unique Features of Bioscreen C 7 8 Test Example N ONNNN o1 amp amp 0 O O OO O 9 Technical Specifications General Specifications Safety Specifications Photometric System Incubator for Honeycomb Plates Honeycomb 2 Plates PC and Printer Requirements EU Directive on Waste WEEE Guide for Manual Dispensing 10 Guide to Anaerobic Experiments 11 User Replaceable Parts 12 Appendix Bioscreen C Service Request User s Manual Microbiology Reader Bioscreen C Honeycomb 2 multiwell plates Inc
16. all visible light wavelengths can be used The standard filters provided in the filter wheel are 405 420 450 492 540 580 and 600 nm and a wide band filter Other wavelength filters may be available by special request The wide band filter is a white filter for turbidity measurement band area 420 580 nm Usually the wide band filter is used in microbiology work because the results are not affected by change of color of growth medium The results indicate only a development of turbidity In special work for high sensitivity where the color change is needed other filters can be used 21 Microbiology Reader Bioscreen C User s Manual 7 7 Unique Features of Bioscreen C MBR Compared to conventional plate readers e No condensation or evaporation of the sample Patented technology assures there will be no liquid condensation on plate cover which can mask true results The cover also eliminates sample evaporation which can distort results Bioscreen C is the only reader that keeps the cover on during the entire experiment Tight temperature range for reliable results Temperature range is from 1 to 60 C with temperature variation held within 0 1 degree Conventional plate readers can not keep these tolerances and hence provide less reliable results Choice of optical measurements The user can choose of seven wavelengths plus wide band for turbidity measurements unaffected by change in color in the wells 200 results
17. an damage your instrument The incubation temperatures that can be used depend on the ambient room temperature see Fig 6 The user may select any of the eight filters on the filter wheel wavelengths from 405 to 600 nm including a wideband filter between 420 and 580 nm Usually WB wide band filter is used to measure turbidity because it is less sensitive to color changes During the measurements all instrument covers must be closed Caution Open covers can interrupt the test produce wrong results or result in personal physical injury for fingers etc Between the measurements the cover can be opened Make sure that the Bioscreen has come to a full stop and it is safe to open the cover If the cover is opened between measurements make sure that there s enough time to safely operate and to properly close the cover again before the next measurement will take place New samples can be added or samples for other studies can be taken Caution Do not put fingers or anything else between the incubator and a base frame the space under the green cover Serious damage can be caused if the instrument starts to measure with the cover open Note When the incubator cover is opened condensation may occur on the sample plate cover If this occurs adjust the time between the measurements so the condensation disappears before the next measurement When the experiment is completed remove and dispose the used plates if necessary Clean the inside o
18. carefully insert the filter wheel into the slot parallel to the instrument in the optical module with the gears facing backwards and the numbers facing forward of the instrument Please see Figure 3 on the next page The magnets will draw the wheel into the correct position Close the rear lid The magnets in the filter wheel prevent the wheel from being placed incorrectly Do not force the wheel incorrectly in place try to turn it the other way around instead Caution Avoid touching the filter lenses Fingerprints on the lenses diminish the amount of light passing through to the detector Caution Do not touch or remove the filter wheel while running the instrument Microbiology Reader Bioscreen C User s Manual Figure 3 Placing the filter wheel Connect the power cord to the back of the Bioscreen instrument Plug it in Caution Before turning the Bioscreen on ALWAYS remember to check that the incubator cover is in its right position Improper placing of the cover can cause serious damage to the instrument which is NOT covered by warranty Always close the lid before starting an experiment as placing fingers etc inside a running instrument can cause serous physical injury Please see chapter 4 4 Start up for more information Also remember to check that the green cover of the measurement compartment is properly in place Turn on the instrument the switch is on right side towards the back 2 2 2 Running the instrument
19. ch laboratories and most industrial laboratories the expected transient over voltage is 2500 V for a 230 V supply and 1500 V for a 120 V supply NOTE 2 Pollution degree describes the amount of conductive pollution present in the operating environment Pollution degree 2 assumes that normally only non conductive pollution such as dust occurs with the exception of occasional conductivity caused by condensation Both of these affect the dimensioning of the electrical insulation within the instrument 8 3 Photometric System Linear range 0 0 2 0A max dev lt 2 Noise max 0 002A at 0 0A Drift max 0 003A Resolution 0 001A Warm up time 30 min Optics Fiber optics with filter Light source Quartz Halogen lamp 8V 50W average lifetime with newer instruments serial number over 110001 300 approximately 4000 hours Filters 8 filters 405 420 450 492 540 580 600 nm and WB WB is a wide band filter 420 580 nm for turbidity measurement it is rather insensitive to color changes Half band width 3 10 nm Detector Silicon photocell 8 4 Incubator for Honeycomb Plates Cuvette type multiwell plate type Honeycomb 2 HC 2 plate 100 wells per plate Capacity 2 plates 200 wells in incubator Incubating temperature 1 0 60 0 C selectable with steps of 0 1 C Depends on ambient temperature see fig 6 Bioscreen can go 6 C below or 30 C above ambient temperature max 60 C Temperature uniformity 0 1
20. cohol WARNING Be careful when filling up the Honeycomb plates If the experiment is supposed to create gas or similar make sure you do not over fill the wells The flooding of the wells can cause damage to the sensitive optical lenses underneath the incubator tray Caution Don t immerse the incubator tray cover in cleaning solution 5 3 Checking the Heat Transfer Fluid Level The heat transfer fluid level is checked at the window of the incubator at the front of the instrument With the Bioscreen turned ON the green lamp in the tank window lets you see the level of the heat transfer liquid The fluid level should be above the minimum level marked at gt The heat transfer fluid tank is full when you receive your Bioscreen but remember to check the fluid level on a regular basis Caution Don t operate Bioscreen if the fluid level is too low it can damage the instrument The heat transfer fluid is in a bottle inside the accessory pack included with your system To add more fluid do the following e Switch the Bioscreen ON e Unscrew the plug on the upper part of the heat transfer fluid window e Press ENTER 21 ENTER on your Bioscreen instrument keypad The heat transfer liquid pump starts a continuous circulation of the heat transfer fluid e With a pipette take up a few milliliters of heat transfer fluid and dispense it through the hole from which you removed the plug Keep dispensing until the level in the fluid window is well above
21. ction of yogurt beer wine or foods 17 To measure the combined effect of various parameters e g pH temperature water activity salt concentration chemicals on pure and mixed cultures 18 To study the growth kinetics of bacteriophage dropping growth curves 19 LAL tests Limulus amoebocyte lysate gel assay for endotoxin assay 20 Mathematic modeling of microorganism phage or cell growth with the help of MS Excel or similar programs 21 To develop selective or broad range growth media for microorganisms or cells 7 6 Capabilities of Bioscreen C MBR Bioscreen C provides measurement of turbidity of samples kinetically All microorganisms bacteria fungi yeast algae produce turbidity by multiplication in broth Conventional test tube tests where the turbidity or color change occurs can be run with the mini tubes in a Honeycomb plate with Bioscreen C Bioscreen C is an open system the user can him herself decide what is put into the wells Any microorganism broth or chemical can be dispensed into the wells for monitoring growth kinetically and automatically Anaerobic bacteria can be grown by sealing the cover to the plate in an oxygen free gas alternatively the oil layer technique can be used One can also monitor bacteriophage growth dropping growth curves amoebae Limulus growth and other processes where the turbidity changes The results are reported as CSV formatted OD numbers For vertical light photometry
22. dramatically on media and consumable costs petri dishes test tubes etc Bioscreen C performs 200 tests automatically each well is one test at the same time It works unattended twenty four hours a day seven days a week You can complete as many tests in just a few weeks as would normally take a year by using traditional manual techniques 7 4 Bioscreen Limitations Growth media must be in a liquid form The maximum volume of each well is 400 ul 50 ul sample 350 ul growth media Incubation temperature range is from 1 0 to 60 0 C 6 30 C from ambient temperature Incubating time is from 1 to 1600 hours 200 simultaneous tests can be performed 7 5 Applications All microorganisms increase the turbidity of broth growth medium when growing and multiplying in it In addition to microorganism growth monitoring the growth of phage and suspended cell cultures can be monitored by Bioscreen C The range of Bioscreen C tests is virtually endless miniaturized bioassays measurement of effects of chemicals pH temperature and other parameters on micro organisms antibiotic susceptibility tests QC of food total count and others A user can dispense any favorite micro organism with any chemical and broth in empty multiwell plates to monitor kinetically the growth of the culture i e the development of turbidity or color in 200 wells at a time Most tests that are run in test tubes with broth can be run automatically by Bioscre
23. e and follow shipping laws and regulations In case an instrument is not decontaminated and or the decontamination declaration form is not filled in and or the Shipping safety label is not attached to the packaging exactly as specified the shipment will be refused and result in immediate return of the unit at the customer s expense Failure to properly document or label shipped units will result in the immediate return of the unit at the customer s expense Safety shipping label Fill out and sign the Safety Shipping Label below Cut out and affix it to the exterior outside of the shipping carton TO Growth Curves Ltd Safety Shipping Label Peltopohjankatu 2 21280 Raisio FINLAND EUROPE Samples used in product Decontamination performed by Signature Name Date This label must be affixed to the exterior of the packaging PACKAGES WITHOUT SAFETY SHIPPING LABEL WILL BE REFUSED Responsibilities It is the responsibility of the Bioscreen user to 1 Remove all substances which are dangerous for human health from the instrument so that the instrument is safe for human to handle 2 Choose the appropriate decontamination method depending on what substances liquids the instrument has been exposed to Why the instrument has to be cleaned e The product must be shipped under corresponding regulations e Safety of the service personnel must be secured Decontamination areas
24. e existence of strict anaerobiosis If O2 leaks then the colour of the indicator liquid or paper changes The hermetically closed Honeycomb plate is put into the Bioscreen C anda normal experiment with shaking incubating and measurement is carried out 2 The whole Bioscreen C can be placed in an anaerobic box or an anaerobic cabinet Facultative anaerobes e g lactobacilli and bifidobacteria 1 Oil layer technique can be used The oil diminishes the dissolving of O2 from air into the sample 2 Redox medium including chemicals which react with O2 can be used with previously described techniques or separately 11 User Replaceable Parts User Replaceable Parts 240 5590 Filter wheel 405 420 450 492 540 580 600 and WB 420 580 nm 240 0620 Halogen lamp 8V 50W use ONLY pre tested lamps 121 0051 Fuse 2A slow 10 pcs 121 0091 Fuse 4A slow 10 pcs Consumables 950 2550 Honeycomb 2 plate with a cover gammaz sterilized 100 pcs PC Software 518 6061 EZExperiment basic OD measurement application 510 1500 Standard OEM Norden Lab Professional sold only with a new instrument 510 1510 Standard Norden Lab Professional Bioscreen C Edition SW 510 1520 Premium Incl Professional Network server with 4 clients and Web 510 1530 Standard Lab Professional 1 year time limited subscription license 510 1540 Premium Professional Network amp Web 1 year subscription License Manual 150 6090 Bioscreen
25. e new lamp so that the red dot points upwards Place the lamp connector to the lamp pins and tighten the screws firmly Check that the lamp is correctly positioned e Close the cover plug the power cord in and switch the Bioscreen C on LAMP IS CORRECTLY S POSITIONED WHEN aft THE RED DOT IS A FACING UP Figure 8 Replacing the lamp Figure 9 Positioning the lamp NOTE Do not open the screws painted in red NOTE There are some brands of lamps that will not give enough light for the wavelength range that the Bioscreen uses Only those lamps sold AND pre tested by Growth Curves Ltd are guaranteed to operate properly Use only these certified lamps pre tested and approved by Growth Curves Lid in order to avoid the F1 b2 too little light error 15 Microbiology Reader Bioscreen C User s Manual 6 TROUBLESHOOTING GUIDE 6 1 Optical problems Description Filter error FE Cause Filter is missing Solution Be sure that the filter wheel is properly installed and all the filters are in place Description Blank error F1 B2 Cause Insufficient light to the amplifier The lamp is burned out or the lamp is of the wrong model The filters and or lenses are dirty Solution Change the lamp to a pre tested and approved lamp sold only by Growth Curves Ltd Clean the filters and lenses Note Sometimes old lamps can cause problems They are lit but the amount of ultraviolet light is not sufficient for the measurem
26. e on the upper lens in the detector assembly If the lens has been damaged it must be replaced Description Carriage movement is normal but noisy Cause Incubator tray cover is not placed properly over the hinges The cover crashes with the detector assembly Solution Place the cover properly over the hinges Wiggle it to be sure it s in place Check for damages on the upper lens in the detector assembly If the lens has been damaged it must be replaced 18 Microbiology Reader Bioscreen C User s Manual 7 ABOUT BIOSCREEN 7 1 Product History Waiting for days for Petri dishes is just too long when you re carrying out microbiological assays But what about the alternatives Surely you have considered automation but you need a system that operates on an accepted biological principle to produce meaningful results and which is versatile enough to carry out a wide range of both routine and research assays Such a system is available Bioscreen C Bioscreen C was developed by Labsystems Oy a Finnish company heavily involved in biotechnology and laboratory instrumentation They have manufactured over 16 000 ELISA readers and over 1 million Finnpipettes About 20 years ago they saw a need for a new generation of instruments designed specifically for microbiology This led them to develop Bioscreen C a fully automated growth curve reader that gives results in less than a day After Labsystems Oy was acquired by Thermo Elec
27. ed with a COM port Just remember to install the driver and read through the users s guide from the attached CD Place the EZExperiment software CD into the computer and install the software Follow the steps indicated on the PC screen to complete the installation At the end of the installation a microscope icon will appear on your menu screen Click on this icon to start the EZExperiment software There are also commercial softwares available that are more diverse than the EZExperiment software Please visit at www nordenlogic com download_bioscreen html and familiarize yourself with the alternatives 2 3 2 Setting the clock EZExperiment is designed to run on a 24 hour clock Since most U S Windows programs are set up with a 12 hour clock and AM PM settings the clock in your PC may have to be adjusted to run the EZExperiment To change your clock settings on your computer to 24 hour time open the Control Panel in your start menu Double click on Regional and Language Options Click the Customize button next to the language drop down menu In the Customize Regional Options window click on the Time tab Change the Time Format to read HH mm ss instead of hh mm ss Capital H implies a 24 hour clock Microbiology Reader Bioscreen C User s Manual Delete AM and PM from the drop down menus for AM setting and PM settings Click OK to exit the Customize Regional Options window
28. en C 7 5 1 Examples of Applications 1 To follow the growth turbidity development of 200 cultures simultaneously by simultaneous recording of the parameters of the growth curves 2 To measure the total count of microorganisms of food samples 3 Microbiological assays for measuring the amount of vitamins amino acids antibiotics disinfectants toxicants biostimulators growth retardants or other chemicals 4 To develop the production of microbiological protein from organic waste 5 To develop new antimicrobial antifungal agents 6 To develop microbiological preservatives 7 To develop microbiological single cell protein SCP production processes 20 Microbiology Reader Bioscreen C User s Manual 8 In production of enzymes proteins fatty acids or other substances 9 To develop wastewater treatment biofilm and activated sludge processes To find optimal conditions for biodegradation of pollutants 10 To study microbiological processes at different temperatures 11 To determine minimal inhibitory concentration MIC of antimicrobials or to determine the lethal dose LD of antibiotics or other compounds 12 To develop microorganisms with wanted characteristics 13 To detect the presence and level of bacteriuria 14 To measure the toxicity and potential mutagenicity of different compounds 15 To study the metabolic processes of microorganisms and cells 16 To study microbiological processes of produ
29. ent This can cause false assumption that the lamp is OK when it is not Description Blank error F1 B3 Cause Too much light is reaching the detector The filter wheel is missing or the cover is open Solution Check that the filter wheel is properly installed and all the filters are in place Close the covers Description Unnatural growth curves Cause 1 Sediment accumulates to the bottom of the sample wells then it moves randomly when the sledge moves 2 The cover has been opened during the measurement and this has elevated the measurement values 3 Ambient temperature is too high or too low to keep the programmed incubation temperature Solution 1 Use shaking before each measurement to keep it in suspension 2 Do not open the cover during the measurement 3 Place instrument in a room or box of higher or lower temperature 16 Microbiology Reader Bioscreen C User s Manual Description Instrument gives elevated readings which lower gradually to normal after a few minutes Cause The vapors from the sample have condensed on the sample plate cover This happens when measurement temperature is lowered during the measurement or when the run has been aborted and started again or when the incubator cover has been removed during the measurement Solution Make the measurement to start from lower temperatures and measure the warmest last If reverse temperature measurements are needed give the instrument enough time t
30. f the incubator tray and the cover with ethanol moistened tissues if necessary A white powderlike substance can occur because of the movements of the plate in the incubator tray especially if the shaking function is regularly used 11 Microbiology Reader Bioscreen C User s Manual Range of available incubation temperatures at ambient temperature of 25 C 70 C 60 C 50 C Temperature 40 C 30 C 20 C 10 C oC 10C 20 so 400 50 Ambient temperature Example 1 At ambient temperature 10 C the incubating temperature can be set at 4 40 C Example 2 At ambient temperature 20 C the incubating temperature can be set at 14 50 C Example 3 At ambient temperature 30 C the incubating temperature can be set at 24 60 C Figure 6 Range of incubating temperatures that can be selected at different ambient temperatures 4 6 Data Handling EZExperiment software handles the OD measurements and stores the data on a computer hard disk OD data and well numbers are stored in CSV format comma separated list This data can automatically be exported to MS EXCEL if desired This approach lets the user to handle Bioscreen data using any DOS OS 2 or Windows graphical scientific or Statistical software Examples MS EXCEL LOTUS DBASE STATISTICA MATHCAD MATHEMATICA COREL DRAW HARVARD GRAPHICS STATGRAPHICS MS WORD LABVIEW WINLIMS ORIGIN SIGMAPLO
31. functions are controlled by computer software according to the parameters entered by the user The maximum capacity is 200 samples at a time Each well can be considered as an individual test vessel where monitoring of the microbiological growth in 200 experiments can be performed simultaneously Two 100 well Honeycomb plates can be read at the same time This Honeycomb multiwell plate technology positions 100 wells in a similar footprint as a 96 well plate The plate was designed to both give the most even temperature possible across the whole plate as well as to eliminate evaporation and condensation common problems with conventional 96 well plates A unique incubator has a liquid circulation heat exchanger which gives constant temperatures to all wells This is essential for developing high quality growth curves 19 Microbiology Reader Bioscreen C User s Manual 7 3 Comparison with Traditional Manual techniques Using standard growth medium Bioscreen C directly measures growth Thus the data produced correlates directly with classical assays So you can simply transfer your present working method to Bioscreen C and enjoy the benefits of automation Bioscreen C provides consistent final results both for research and routine work You can run a wide range of assays Simply by changing the program parameters you can cover a wide range of routine and research applications Bioscreen C lets you work more cost effectively you can save
32. g an experiment First place the cover on the hinges in the back where the white arrows point then gently push down and lock the front part marked again with a white arrow and the text OPEN Always double check this before turning the instrument on Close the lid above the incubator to avoid physical injury when the instrument is operational Make sure that every person that uses the instrument is aware of this notification This is an example of the damage that will occur if the incubator is not properly fastened to the carriage or if the incubator tray cover is not properly placed on its hinges The coating has worn off and bare aluminium is visible in the corner of the cover and the detector lens has been scratched This instrument does not give usable results until the lens has been replaced Figure 5 Check the correct placement of the incubator tray cover 10 Microbiology Reader Bioscreen C User s Manual 4 5 Running an Experiment After dispensing media into the wells manually insert the Honeycomb plate into the incubator tray Be sure to place the Honeycomb plate in the correct position i e marked corner in left front Place the incubator tray cover on two hinges situated on the rear of the tray Place the rear left and right corners carefully Snap the front of the cover into the catch with the text OPEN Caution Make sure that the cover is firmly in place Improper positioning c
33. icals on microorganisms etc 3 3 Software The EZExperiment software is simple and easy to use The program stores all results from the experiment in a CSV file Data may readily be opened or exported to MS Excel for graph generation and analysis The more complex Norden Logic Professional software has a large number of functions and can be used for 30 days free of charge Complete installation information is available at www nordenlogic com download_bioscreen html Microbiology Reader Bioscreen C User s Manual 3 4 Bioscreen Reader The reader includes three interrelated systems mechanical transport incubator and optical system for the elements see Figure 1 These three systems work in a coordinated way to provide automated heating cooling sample indexing and OD readings 3 4 1 Mechanical transport The incubator tray assembly holds the Honeycomb plates in the correct position The assembly shuttles left from the plate loading section into the measurement compartment where light is passed through each well of the plate and the detector makes the OD readings 3 4 2 Incubator The incubator consists of the incubator tray itself fixed non removable and the incubator tray cover on hinges The heating cooling liquid circulates continuously in the incubator tray to keep the temperature stable and at a selected value NOTE Check amp adjust the level of the heat transfer liquid level weekly by examining the fluid window 3 4
34. kg Dimensions WxDxH 62 cm x 38 cm x 23 cm Primary fuses T 4A 250V IEC 127 Ill at 100 110 V T 2A 250V IEC 127 Ill at 220 240 V Ambient temperature range Transportation and storage 25 50 C Operation 5 40 C this is an ambient temperature surrounding Bioscreen incubation temperature inside the incubator is 1 60 C and it can go 6 C below or 30 C above ambient temperature max 60 C 8 2 Safety Specifications Bioscreen C fulfills the following requirements IEC 1010 1 including Amendments 1 and 2 The safety specifications are met also under the following environmental conditions in addition or in excess to those stated in the operating conditions Altitude up to 2000 m Temperature 5 C 40 C Humidity max 85 at normal room temperature Mains supply fluctuations 10 Installation category over voltage category Il according to IEC 664 1 Note 1 Pollution degree 2 according to IEC 664 1 Note 2 WEEE EU Directive 2002 96 EC 23 Microbiology Reader Bioscreen C User s Manual NOTE 1 Installation category over voltage category defines the level of transient over voltage which the instrument is designed to withstand safely It depends on the nature of the electricity supply and its over voltage protection means For example in CAT II which is the category used for instruments in installations supplied from supply comparable to public mains such as hospital and resear
35. nt member of our organization and found to have been totally decontaminated off all chemical biological and or radioactive materials PRIOR to packaging for shipment By signing this form acknowledge that have read and understood my responsibilities have also read and understood that have to attach Safety shipment label to the exterior of the packaging in order to extradite the expenses for shipment refusal and returning Printed Name of Company Representative Title Signature Date Signature of Radiation Safety Officer is also required when the unit has been used with radioactive materials Unit is certified by me to be free of Radioactive Contamination Printed Name Signature Date This User s manual covers Microbiology Reader Bioscreen C Without Dispenser code 5101370 Microbiology Reader Bioscreen C measures kinetically by vertical photometry the development of turbidity i e growth in 200 wells simultaneously Code of this User s Manual 1506090 Information in this User s Manual is subjected to change without prior notice Web databases on Bioscreen C www bioscreen fi www bionewsonline com www growthcurvesusa com Varichannel Pipettes instructions for use www thermo com eThermo CMA PDFs Articles articlesFile_16763 pdf Oy Growth Curves Ab Ltd www bioscreen fi Sarkiniementie 5 C 7 00210 Helsinki Finland Phone 358 9 687 46 300 Fax 358 9 260 98 45
36. o stabilize to desired temperature before measurement If condensation occurs while experiment has been aborted warm up the instrument and sample as usually done when starting the experiment Description Absorbance values oscillate randomly Static noise is very high Cause The incubator tray is loose in its carriage The locking screws are loose and the incubator is not firmly secured in its place Solution If the carriage locking screws are loose tighten them firmly but not too tight Service A loose incubator tray can be tightened by the operator Note With very old instruments this behavior can be caused by electrical interferences Newer instruments have protective coating on the chassis that prevents EMP disturbances If the problem arises after the instrument has been relocated or other changes have been made in the operational environment this is the probable cause Try to solve the problem by using the instrument in another location or use better regulated power outlets reserved for computer use only 6 2 Temperature problems Description Desired temperature is not reached Cause 1 Desired temperature out of operational range 2 Ambient temperature too low or too high 3 Heat transfer fluid level is too low Solution 1 Refer to operations manual about correct operational range 2 Place instrument in a room or box of higher or lower temperature 3 Replenish the heat transfer fluid 17 Microbiolog
37. rator temperatures microorganisms grow slowly A growth curve may take 1 week to develop It may be possible to start a Bioscreen C experiment in the evening before leaving the laboratory and have 200 growth curves ready in the morning 4 3 Pre Start Checklist Check that the filter wheel is clean Check that there are no spills inside the instrument Check that there is enough heat transfer liquid Check that the incubating temperature is not more than 6 C below ambient Check that the cables are connected thoroughly 4 4 Start up Make sure that the incubator tray cover is properly in place CAUTION See Fig 5 on the next page e Switch ON Bioscreen C and your PC Start the computer software and perform the System Check See Section 2 4 Microbiology Reader Bioscreen C User s Manual CAUTION Do not store computer disks near the data processor or over the reader There are several small magnets inside Bioscreen Their magnetic field can destroy the contents of your disk ATTENTION Always check the correct placement of the incubator tray cover Damage caused by improper operation is not covered by warranty Please be careful to place the incubator tray cover properly in its hinges The most common cause of Bioscreen malfunction is careless placing of the cover This prevents free track movement and will damage your instrument Always make sure that the incubator tray cover is properly placed and closed before startin
38. result analysis but in principle any modern software supports any printer that your operating system supports Please refer to exact details in the manuals of the analysis software of your choice 8 7 European Union Directive on Waste Electrical and Electronic Equipment WEEE This symbol applies to European countries only and indicates that the equipment carrying this mark must NOT be thrown into trash and must be collected separately and properly recycled under local regulations pid 25 Microbiology Reader Bioscreen C User s Manual 9 Guide for Manual Dispensing INSTRUCTION FOR USE KEEP THIS PAPER UNDER THE HONEYCOMB PLATE DURING MANUAL DISPENSING THE WELL NUMBERS ARE SEEN THROUGH THE HONEYCOMB WELLS Plate number 1 Plate number 2 Rosagogase SeLaBokaFo 22 22 OOO 0s DOO CECEO OLORO ORORO OOOO OOOO 02020200 OOOO S020702 02O OOOO 0 52 Ke2 2S LoLo LOLO Microbiology Reader Bioscreen C User s Manual 10 Guide to Anaerobic Experiments Experiments with anaerobic bacteria can be done with Bioscreen C by using different methods Strict anaerobes 1 Honeycomb plates are filled with O2 free atmosphere Samples are dispensed into Honeycomb wells in an anaerobic box The 2 ears of the Honeycomb plate are cut off and the Honeycomb plate is hermetically sealed in an anaerobic box with glue or tape An indicator liquid or paper is placed into one well for confirming th
39. test When the instrument is ready to start 0 0 is shown on the LED display Press MODE on keypad display will read tESt Press 21 then press ENTER on keypad and the pump will start etc Allow the instrument to run for at least 5 minutes If there is a problem the test sequence will automatically terminate If the instrument is OK it will keep displaying readings and continue to run To stop the instrument press the RESET key then switch the instrument off Microbiology Reader Bioscreen C User s Manual 2 2 3 Running the heat transfer fluid test The heat transfer fluid level is checked at the window of the incubator at the front of the instrument With the Bioscreen turned ON the green lamp in the tank window lets you see the level of the heat transfer liquid The fluid level should be above the minimum level marked at gt The heat transfer fluid tank is full when you receive your Bioscreen but remember to check the fluid level on a regular basis Caution Don t operate Bioscreen if the fluid level is too low it can seriously damage the instrument The heat transfer fluid is in a bottle inside the accessory pack included with your system To add more fluid do the following e Switch the Bioscreen ON e Unscrew the plug on the upper part of the heat transfer fluid window e Press ENTER 21 ENTER on your Bioscreen instrument keypad The heat transfer liquid pump starts a continuous circulation of the heat transfer fluid e
40. tested We will use 5 different concentrations of each antibiotic and perform the tests at 5 different temperatures and at 3 different pH Also all tests are performed in 3 parallels So the number of tests needed to create this model of antibiotic effect is 10 antibiotics 5 new ones and 5 old ones for comparison 10 bacteria e g strain 1 strain 10 5 concentrations of each antibiotic e g 1 5 20 50 100 ug ml 5 different temperatures e g 30 36 37 37 5 and 38 C 3 different pH e g 6 5 7 5 and 8 5 3 parallels for each test 10x 10 x 5 x 5 x 3 x 3 22 500 growth curve tests To perform these tests manually max 20 tests per day takes 22 500 20 1125 working days Assuming 200 working days per year it takes 1 125 200 5 6 years additional time for data handling With Bioscreen C 400 tests per day are possible if the growth curve is received in less than 12 hours it is usually possible if the continuous shaking feature is used Bioscreen runs these 22 500 tests in 56 days This experiment can be performed by traditional manual means in 6 years or by Bioscreen C in 2 months 22 Microbiology Reader Bioscreen C User s Manual 8 TECHNICAL SPECIFICATIONS 8 1 General Specifications Nominal voltages 100 240 VAC 50 60 Hz 110 220 VAC 50 60 Hz Operating voltage range 10 of nominal 90 130 VAC 100 110 VAC 180 260 VAC 220 240 VAC Power consumption 1 6A 100 110 VAC 0 8A 220 240 VAC Weight 22
41. tron the strategic decision was made to sell off the Bioscreen C line to a newly formed company Oy Growth Curves Ab Ltd Helsinki Finland Oy Growth Curves Ab Ltd now manufactures the Bioscreen C instrument for distribution throughout the world 7 2 System Description Bioscreen C is a fully automated instrument developed to perform a wide range of microbiology experiments automatically The system consists of a reader which incorporates an incubator and a measurement unit sample plates and software EZExperiment software which records OD readings over time is included in the system Norden Logic Professional software can be downloaded from the website www nordenlogic com and used for free during the 30 days trial period Bioscreen C is designed to be used with a PC and a printer not supplied with the system Users can export data to commercially available scientific software packages such as MS Excel for additional data handling if required Norden Logic SW works differently please see its homepage The incubation temperature selection ranges from 1 to 60 C in steps of 0 1 C The maximum temperature of 60 C is reached when the lid is 60 C and the cassette holding the samples has reached 59 C Bioscreen can reach 6 C below and 30 C above ambient temperature If lower temperatures are desired the whole Bioscreen must be placed in a cooled room Measurement is done kinetically using the principle of vertical photometry All
42. ubator compartment Lamp and filter wheel cabinet Measurement 2 Honeycomb plates compartment sample tray f J va Analyzer cover Ff y j A f d Heat transfer Oe ns Bioscreen keyboard for Bi isol fluid window Heating cooling compartment puilt in service tests los reen display Figure 1 Growth Curves Ltd s Bioscreen System and the Components of Bioscreen reader Microbiology Reader Bioscreen C User s Manual 1 HOW TO USE THIS MANUAL Start by looking at the pictures in this first section Figure 1 illustrates a schematic layout of your Bioscreen C system and the modules of the instrument The growth results that you will get with EZExperiment software are shown in Figure 2 as an MS Excel format Section 2 will walk you through how to unpack your Bioscreen how to hook it up and what checks you need to run before starting an experiment Section 3 provides a description of the system components and general applications Section 4 describes how Bioscreen operates and gets you started running your first experiment Section 5 lists the maintenance steps required when and how to do them Section 6 lists some common problems encountered and how to troubleshoot them Section 7 tells you about Bioscreen s history system description and some examples of applications Section 8 contains technical specifications and in sections 9 10 and 11 you will find some useful information about the use of Bioscreen
43. ucing hazardous compounds Remember to clean the contaminated parts properly after use to avoid health risks This is particularly important when the Bioscreen is sent out of the laboratory or if a service visit is needed Your service rep may ask you to provide a written certificate of decontamination 5 2 1 Cleaning the lenses If the lenses are dirty clean them with alcohol and a lint free cloth Avoid harsh treatment There are two lenses one below and the other one above the incubator Upper lens Lower lens Figure 7 Position of both upper and lower lens 13 Microbiology Reader Bioscreen C User s Manual 5 2 2 Cleaning the outer surface Unplug Bioscreen from the power outlet before cleaning All the surfaces of the instrument can be cleaned with a moist soft cloth and mild detergent Make sure that no liquid enters the instrument 5 2 3 Cleaning the filter wheel Check the filter wheel once a week and clean it if necessary Turn the power off Open the cover of the lamp cabinet Lift the filter wheel up Avoid touching the filter surfaces Clean the filter surfaces with a lens paper If necessary use purified alcohol Put the filter wheel back so that the toothed edge is facing backwards The magnets will draw the wheel into the correct position Do not try to force it to the right place turn it around instead e Close the cover 5 2 4 Cleaning the incubator tray Clean the incubator tray with a soft cloth and al
44. y Reader Bioscreen C User s Manual 6 3 Operational problems Description The instrument does not work Cause Power cord is not connected properly or primary fuses are blown Solution Check that the power cord is properly connected from both ends Check the primary fuses in the power socket Description No connection between the computer and the Bioscreen C Cause 1 Serial cable is not connected 2 Incorrect COM port setting 3 Incorrect serial cable Use modem cable supplied with Bioscreen Solution 1 Check the serial cable from both ends 2 Check COM settings from EZExperiment settings menu 3 Check the cable If you have a null modem cable be sure to attach the null modem adapter between the cable and the Bioscreen C Note Bioscreen C used to be delivered with null modem cable and adapter Now they are shipped with standard peripheral cables Description Instrument gives periodically totally wrong readings during a long experiment Cause Computer power saving features interfere with serial port communication Solution Turn off all power saving features from your computer Please consult with your IT department if necessary Description Motor runs incubator against an obstacle which causes noise Cause Incubator tray cover is not placed properly over the hinges The cover crashes against the optical detector assembly Solution Place the cover properly over the hinges Wiggle it to be sure it s in place Check for damag
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