Precision Plant Growth Chamber User Manual
Contents
1. 1 2 Explanation of Front Panel Controls 1 5 Explanation Of Auxiliary Panel 1 7 Instrumentation Port 1 8 installati n 2 1 Sor Tr QUE 2 2 Operation and Calibration 3 1 To keyboard 3 6 To Unlock the Keyboard 222254 3 7 Adjusting the Intake and Exhaust Ports 3 10 HERR EU EE DET TT 4 1 Tioublesh OO DO s auus ead Peace dud ems 4 1 Symptoms and Possible Causes 4 Possible Solutions oe se PR a EROR deb 4 3 Maintenant dc nd ace de DU a a 5 1 General Cautions 5 1 Anu E EE A E 6 1 158232 ROEDER ROR S b d 6 1 Setting Up the Incubator for Communication 6 2 Setting up the Computer for Communication 6 5 Using the Communication 6 5 Specifications 2 u asua 1 1 spare ene Cette 8 1 EE 8 2 Plant Growth Chamber V Unpacking and Thermo Scientific Damage Section1 Introduction Your satisfaction and safety are important2. ASSY 318VO lt L C 2 0018 VNINN3I 314 1504 WYV1V Q GR GR 2 4 LAVH ON ON WO9 dee m 8 Be 8 ove depre ee 2991 29254 gt 5 gt JE Eh NEP a N09 3NN MOTI3A 00 gt lt u a zH 09 ASSY 318 9 lt 265 40 91 N d L m ASSY 1SVTIV8 CL LLL L J AGLI 2189 16 N d JOV3j331NI dod ASSV j803d C 3 01 3 3 55 55 8189 16 N d d s MMd 804 ASSV 818 204 ASSY 318 0 9 1 Plant Growth Chamber Thermo Scientific ZH 09 SI TOA 801 101 JO 3015 802 0 ZH 09 WAL 1901704 INIT OLAY 9189 16 N d AW1dSIG ASSY Lf gif 9 9 N d ASSY ASSY 318 0 GZ89ZLE 824 ASSY YOLVENONI 818 WVYOVIC 43080033 LYVHO ON ON WOO 2991 26255 SNOLL 2 2 TVNOII dO NV3 3LIHM UW MOTI3A 7H 09 926 1 N d IVA OFZ 430100 MOSS WOLLOG JLAM 2 3IIHM JONYYO Zn WOLLOS 33Q10H MOSS 3NdWO2 10310 A
3. o Wd A WE Wy K WdE I 0 a a a 8 0E E E E a 20S por ew omm vw em ow w d d S d dp jll Lb HL dul LNTOd LYS SHLONIW INTOd LYS SHLONIW LH 3flHS HINGHHOS 4d IdWVvo Thermo Scientific Plant Growth Chamber 1 4 Explanation of Front Panel Controls E N o 19 187 Thermo Scientific Section 1 Introduction 1 AM PM Lamps These two green indicator lamps inform the user as to the12 hour time period of the day 2 Time Display This four digit display indicates the time of day In the program mode this display shows what parameter is being programmed 3 Day of the Week Lamps These seven green indicators show what day it 15 4 Mode Lamps These two indicators inform the user whether the growth chamber is in a continuous mode of operation or a program mode of operation timed sequence 5 Temperature Display This four digit display indicates the growth chamber chamber temperature Also during programming it displays the value prompted by the time display 6 Heater On Lamp This lamp is illuminated when power is applied to the heat
4. Display indicates or UUUU Malfunctioning Temperature Probe Solution 4 4 2 Plant Growth Chamber Thermo Scientific Section 4 Service Possible Solutions 1 Inoperative Fan Open the door Place your hand near the grille at the top rear of the chamber and check for air circulation If there is no air circulation the fan motor is malfunctioning Contact Technical Services 2 Burned out heater To check this the control panel cover must be removed Warning Hazardous high voltage conditions exist inside control panel Turn OFF line switch on front panel and disconnect line cord Remove all screws that fasten the cover Locate nylon connector J1 on the Limit Alarm PCB Assembly Depress both ears on the plug housing and gently pull out the connector With an Ohmmeter measure the resistance between TB1 4 Orange wire and TB1 6 Red wire The proper heater resistance is 24 ohms If heater resistance is correct then measure between one heater lead RED or ORANGE and growth chamber ground it must be infinity Open If the heater resistance check indicates an open circuit it may or may not be open In series with the heater is a thermal overload switch It might be that this thermal overload is open and not the heater To check the heater and thermal switch directly the shelfs of the growth chamber and the back wall cover must be removed Unplug heater and measure it s resistance If the resistance is
5. a digital voltmeter Warning The following troubleshooting instructions require that power be on Only qualified service personnel should perform these procedures A Remove the control cover and familiarize yourself with the power supply assembly 3176818 Locate the Triac Q2 the Opto isolator U1 resistor R4 Also locate the test point 2 TP2 The first measurements will be DC voltage measurement so a DC scale of at least 10 volts should be selected Connect the negative lead to TP2 This is DC ground Also locate the terminal block TB1 B This first section will be to verify the heater command is correct from the microprocessor through the optoisolator and through the triac when the growth chamber is NOT requesting heat The steps in this section must be followed in succession 1 Select a setpoint temperature at least 10 below what the actual temperature is The growth chamber should not be requesting heat as indicated by the Heater On indicator lamp on the front panel It should not be on continuously or even flashing 2 Measure the voltage at U1 Pin 2 with respect to TP2 It should be no less than 4 volts DC 3 Measure the DC voltage across R since the growth chamber is not requesting heat there should be no current flowing through this resistor making the voltage drop equal to 0 volts 4 If the last two steps are not as stated then most likely the CPU board is bad and should be replaced 5 Sw
6. and Calibration 3 10 Adjusting the Intake and Exhaust Ports Plant Growth Chamber Use the up or down arrow keys to select the correct month and then press ENTER and the displays will change to the following _ Use the up down arrow keys to select the correct year and then press ENTER The calendar is set and the growth chamber will return to normal operation at this point The exhaust port is the top port on the door Open it slightly by turning it counterclockwise to permit exhausting of chamber air The intake port is the bottom port on the door Open the intake port by turning it counterclockwise to permit an air exchange in the chamber Thermo Scientific Section 3 Preventive Maintenance PREVENTIVE MAINTENANCE Incubators Your equipment has been thoroughly tested and calibrated before shipment Regular preventive maintenance is important to keep your unit functioning properly The operator should perform routine cleaning and maintenance on a regular basis For maximum performance and efficiency it is recommended the unit be checked and calibrated periodically by a qualified service technician The following is a condensed list of preventive maintenance requirements See the specified section of the operating manual for further details We have qualified service technicians using NIST traceable instruments available in many areas For more information on Prevent
7. and the compressor goes off it will be approximately 10 minutes before the compressor turns back on This is due to an internal time delay within the compressor The user can change this 20 minutes to a value desired but when power is turned off and on again it will reset to 20 minutes again Use the up or down arrow keys to select your time value and press ENTER The displays will change to the following _ lll Il 1 11 This is the value for alarm the amount of temperature deviation allowed before either the high or low delay timers started Use the up or down arrow keys to select your value and then press ENTER and the displays will return to their normal operation 8 CALENDAR The clock key allows the hours minutes and day of the internal clock to be set To set the internal clock select Configuration mode 2 To set the date month and year follow these instructions A Press and hold the up or down arrow keys and then press the ENTER key and the displays will change to the following Use the key to select 02 and then press ENTER The displays will change to the following A number other than 01 might be shown This is the day of the month selection Use the up or down arrow keys to select the correct date and then press ENTER and the displays will change to the following MER PI Lit Ll Plant Growth Chamber 3 9 Sec tion 3 Operation
8. correct check resistance between heater terminal and the heater sheath It must be an open circuit If the heater is good then check the thermal overload switch At room temperature it should be closed 0 ohms This switch should only open at 80 C then close at 65 C If the heater and thermal switch are good then the problem is directed towards the heater wires in the harness If heater is defective contact Technical Services 3 Malfunctioning Power Supply PCB assembly The Power Supply PCB Assembly has the triac solid state AC voltage switch on it which supplies the power to heater This triac is told to operate when need be by the microprocessor Thermo Scientific Plant Growth Chamber 4 3 Section 4 Service 4 4 Possible Solutions continued Plant Growth Chamber There is another device known as an Optoisolator which serves as the high low voltage isolator between the triac and the microprocessor When the growth chamber starts experiencing temperature problems and or variations due to known controller malfunctions these two components become prime suspects The reason being they are under higher operating stress than other components If the growth chamber starts experiencing temperature problems such as no heat constant heat or creeping upward heat then follow the troubleshooting instructions below These instructions require the use of a voltmeter being able to measure DC and AC voltages and preferably
9. of the con denser heat exchanger of the cooling system Note that it has no impact on the specified performance of the unit Plant Growth Chamber 4 1 Section 4 Service Symptoms and Possible Temperature variations at set point poor control Causes continued Excessive ambient temperature variations see Solution 10 Compressor Relay failure see Solution 12 No air circulation in chamber inoperative fan see Solution 1 RTD Temperature Probe Location see Solution 5 Ice buildup on evaporator coils see paragraph on Defrosting RTD Temperature probe see Solution 3 Step D and or Solution 4 Power Supply PCB Assembly see Solution 3 Does not reach a high set point temperature No air circulation in chamber inoperative fan see Solution 1 Low line voltage less than 110V see Solution 9 RTD Temperature Probe see Solution 3 Step D and or Solution 4 Power Supply PCB Assembly see Solution 3 Overcharged compressor see Solution 11 Differences between Temperature Set and Digital Temperature Readout see performance figures page 3 RTD Temperature Probe see Solution 3 Step D and or Solution 4 Malfunctioning Power Supply PCB assembly see Solution 3 Takes an extremely long time to reach high temperature set point No air circulation in chamber inoperative fan see Solution 1 Low line voltage less than 110V see Solution 9 Power Supply PCB assembly see Solution 3 Overcharged Compressor see Solution 11
10. or less after 2 minutes the low alarm temperature will go off along with the compressor This is not a real alarm failure If the door is left open long enough for this to occur then the door must be closed sooner so the growth chamber can recover in time Alternately the delay times can be set for a longer period of time or the alarm band can be increased To adjust the delay timers and the alarm band follow these instructions A Press and hold the up or down arrow keys and then press the ENTER key and the displays will change to the following Use the up arrow key to select 01 and then press ENTER The displays will change to the following l A number other than 01 might be shown This is the delay time setting in minutes for the high alarm Use the up or down arrow keys to select your time value and press EN TER and the displays will change to the following JE Thermo Scientific Thermo Scientific Section 3 Operation and Calibration This is the delay time setting for the low alarm A difference between the high alarm and low alarm delay that should be noted at this point is that when you select a value for the high alarm delay and then turn power off that value will appear again when power is turned on again The low alarm delay however will always be 20 minutes when power is turned on The reason for this if the delay is set for too short of a time
11. such as COMI or COM2 The communication software must be configured to the selected port The serial port is IBM PC AT style port The cable that connects to it must end in a DB 25 25 pin male connector The cable is a one to one wiring format The pin assignments for the serial port are DES RR m Serial Received Data Plant Growth Chamber 6 1 Section 6 Factory Options TOP VIEW 0F CONTROL PANEL 3176707 3176720 J304 BLACK 2 WHITE 3 RED 4 To J304 Assy PCB 815 CPU 3176707 Pane WYRE SS SEES NV SUGGES TED ING Setting Up the Incubator Your growth chamber requires the selection of parameters for for Communication communications A Baud Rate This is the speed of communication between the growth chamber and computer Whatever is selected for the growth chamber must also be selected in the communication software selected to be used B Status Update Time Interval This is the time between information being sent from the growth chamber until it is received by the computer C Status Display Type Selection of the format of data to be sent to your computer 6 2 Plant Growth Chamber Thermo Scientific Section 6 Factory Options Set Up the Incubator for Read the following steps before performing any of them It will allow you Communications to familiarize yourself with the procedure and to determine the va
12. technical problems working together we will help you locate the problem and chances are correct it yourself over the telephone without a service call When more extensive service is necessary we will assist you with direct factory trained technicians or a qualified service organization for on the spot repair If your service need is covered by the warranty we will arrange for the unit to be repaired at our expense and to your satisfaction Regardless of your needs our professional telephone technicians are available to assist you Monday through Friday from 8 00 a m to 6 00 p m Eastern Time Please contact us by telephone or fax If you wish to write our mailing address is Thermo Fisher Scientific 401 Millcreek Road Box 649 Marietta OH 45750 International customers please contact your local Thermo Scientific distributor IV Plant Growth Chamber Thermo Scientific Thermo Scientific Preface Warranty Notes Information You Should Know Before Requesting Warranty Service Locate the model and serial numbers serial tag Is located on the unit itself For equipment service or maintenance or with technical or special application inquiries contact Technical services at 1 800 438 4851 or 1 740 373 4763 USA and Canada Outside the USA contact your local distributor Repairs NOT Covered Under Warranty Calibration of control parameters Nominal calibrations are performed at the factory typically 1 C for tempera
13. to Thermo and a complete understanding of this unit is necessary to attain these objectives Warning As a routine laboratory precaution always wear safety glasses when working with this apparatus A This product is not intended nor can it be used as a sterile or patient connected device In addition this apparatus is not designed for use in Class I or III locations as defined the National Electrical Code Save all packing material until unit is put into service This merchandise was carefully packed and thoroughly inspected before leaving our factory Responsibility for safe delivery was assumed by the carrier upon acceptance of the shipment therefore claims for loss or damage sustained in transit must be made upon the carrier by the recipient as follows 1 Visible Loss or Damage Note any external evidence of loss or damage on the freight bill or express receipt and have it signed by the carrier s agent Failure to adequately describe such external evidence of loss or damage may result in the carrier s refusing to honor your damage claim The form required to file such claim will be supplied by the carrier 2 Concealed Loss or Damage Concealed loss or damage means loss or damage which does not become apparent until the merchandise has been unpacked and inspected Should either occur make a written request for inspection by carrier s agent within fifteen 15 days of the delivery date then file a claim with the carr
14. voltmeter to AC Volts scale capable of reading 120 volts Measure the voltage between U1 Pin 4 and U1 Pin 6 It should be less than 1 VAC If it is not most likely the optoisolator is bad and the power supply board should be replaced Measure the voltage between TB1 4 Orange wire and TB1 6 Red wire It should be line voltage 110 VAC to 120 VAC If it is not then most likely the triac is bad The power supply board should be replaced Plant Growth Chamber 4 5 Section 4 Service 4 6 Possible Solutions continued Plant Growth Chamber D Measure RTD temperature probe resistance at the connector after unplugging it from plug J302 The resistance between contacts at various temperatures are as follows TEMPERATURE RESISTANCE DC mem dp pam asua emp b ateq 100 OHMS OESTE EE kaa mania Sores 108 OHMS OF TEES 114 5 119 OHMS Note Only 2 of the 3 connector positions used 4 Malfunctioning RTD Temperature probe The Control Board can detect if the temperature probe or the connec tion of the temperature probe to the circuit board is OPEN or SHORTED These two conditions are shown on the display as fol lows DISPLAY Soon CONDITION OPEN CIRCUIT WISIS MC RO SHORT CIRCUIT Before deciding that the probe is bad when one of these displays appear check the connection of the probe to the circuit board 5
15. 0mm 2 Alarm Relay This Alarm Relay output is provided to the user for the purpose of remotely monitoring the growth chamber in case of a high or low temperature alarm condition This alarm relay will operate just as the audible alarm would The contact itself is an isolated form C normally open normally closed dry contact This contact is to be used for low voltage class 2 connections only The contact rating is 24 volts 1 25 amps resistive Typical usages of the output are shown below NC NA LIGHT NO 77 VOLTAGE SOURCE Oe In this configuration the light will illuminate whenever the unit goes into an alarm condition High or Low LIGHT NC _ NU Q VOLTAGE SOURCE In this configuration the light will go off in a high or low temperature alarm condition Note Wiring must conform to all local electrical codes ALARM RELAY LOW VOLTAGE CLASS NO NC 2 CONNECTION ONLY Thermo Scientific Plant Growth Chamber 1 7 Section 1 Installation and Start Up Explanation of Auxiliary Panel continued Instrumentation Port Plant Growth Chamber 3 4 RS 232 Output Optional Kit P N 3166245 This output is used for two way communications between the growth chamber and a personal computer With the use of a communications modem software program the user can record the temperature of the growth chamber at their selected time periods and store it in a file for use with a spr
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17. 758 3759 Plant Growth Chamber allows the user to program in two sets of time setpoint temperature and light conditions for each day of the week This is started by selecting PROGRAM mode pressing the SET key then pressing the PROGRAM key The displays and the indicator lamps will change to the following NN Z B PROGRAM T Y T de S WC E l H 0 0 CNN M m ums Use the up or down arrow keys select your choice for the first hour for Sunday There is separate selection for here as there is for setting the clock but note the AM PM lamps T T F 0000 0 After your selection is displayed press the ENTER key and the displays will change to the following m PRIGRAN co CONTINUOUS Use the up or down arrow keys to select your choice for the first minutes for Sunday After your selection is displayed press the ENTER key and the displays will change to the following Use the up or down arrow keys to select your choice for the setpoint you want the growth chamber to switch to at your first hour and minute you have chosen After your selection is displayed press the ENTER key and the displays will change to the following T Y T F M RR d CONTINUOUS ow ss WIN Thermo Scientific Thermo Scientific Section 3 Operation and Calibration Use the up or down arrow k
18. AR in this section A Press the CLOCK key and the displays will show the following _ REN A number other than 10 might be shown in the right display Also if no keys are pressed within 15 seconds the displays will return to their previous state Using either the up or down arrow keys the user can select the correct hour of the day After the correct hour has been selected ENTER must be pressed and the displays will change to those illustrated in Step B If the hour was correct when the CLOCK was pressed press ENTER and the displays will change to those shown in Step B The displays will be similar to those below These are for the minute selection Pu Eg E d seu se 471 Again a number other than 21 will most likely appear This display also has a 15 second time out just as the hour display Also the next two displays in Steps C and D will have a 15 second time out If the minutes are correct press the ENTER key and the displays will go to those in Step C If the minutes are incorrect use the up or down arrow keys to select the correct minutes and then press ENTER The displays will go to those shown in Step C Plant Growth Chamber 3 1 Section 3 Operation and Calibration 3 2 Plant Growth Chamber C The displays will be similar to those below This is for AM PM selection If the AM PM is correct as indicated by the AM PM lamps then press ENTER and the
19. Caution should be exercised by service personnel when servicing refrigeration system 4 Service should be performed by a certified refrigeration technician only Thermo Scientific Plant Growth Chamber 5 1 Thermo Scientific RS232 Section 6 Options Instructions to install and operate the RS232 option follow 1 Remove the eight 8 screws securing the control panel There are four 4 on the top and 2 on each of the sides Then remove the cover by sliding it towards the front of the growth chamber 2 Slide open the auxiliary panel door and locate the mounting area of the RS232 board as shown on page 4 3 Mount the RS232 printed circuit board assembly using the screws or standofts provided See Figure below 4 Connect one end of the cable to J304 located on the left edge of the left printed circuit board p n 3176707 Be careful of alignment 5 Connect the other end of the cable to the cable connector on the RS232 PCB assembly see sketch 6 Replace the control panel and secure with the eight 8 screws The RS232 PCB provides a bi directional communication port that will allow the user to monitor the performance or the change the operating valves of the growth chamber from a remote computer RS232 Communication will require a communication program such as a modem program installed in your computer which will allow the storage of data within your files The RS232 PCB utilizes one of the users computer serial ports
20. NESS REAR COMPRESSOR COVER PART NUMBER 31 6816 3176825 3176818 3176817 3176756 3176738 3175318 3176759 3176760 3176761 3176762 3176763 3167073 3167218 3167216 3167217 3178034 3177651 3176551 3177652 3167219 3166245 400141 3167215 3167220 130630 3174991 316129 3177654 1900381 Plant Growth Chamber 8 1 Section 8 Spare Parts Accessories mm Access Port Stopper 3167215 shelf includes protection strip GT3185275 and shelf mounting grommets 8 2 Plant Growth Chamber Thermo Scientific 9 8976 N d AW1dSId ASSY Lf alr 99 9 16 Q4VO8A3M ASSY zr ASSY 3182 G299 1 894 ASSY 1 3LIHM ONI 818 WVYOVIC MOTI3A ZH 09 7926716 N d 417 OVA GIL oss WOLLOS N 10H 9NILNVIS yossayqNod 012310 assy c QVO183A0 V 4 012000290015 C CE 00038 c gt MOV y MOTT3A AGL MOP dAV1 Xov1g 401 N3010H NOLWINSNI EE 3LIHM 3LIHM annoud e p ge 6 9 46 Na P im 5 5 m o 2 m p SS3NMVH 2 8 0038 2 TEEPE PEPER EE A A A A A A Z gt T 110 33S mM RM F RM M QNnON9 Q m Q m gt ve w as
21. RID Temperature Sensor Probe Location The Proper RTD location is important The RTD is supported by the stainless steel bracket attached on the rear wall and near the top of the chamber Two tube shaped clips securely support the probe into place The RTD must be inserted fully into its support bracket 6 Constantly Experiencing Low Temperature Alarm If the growth chamber is constantly going into low temperature alarm then most likely the setpoint temperature setting is too close to the low temperature alarm setpoint setting The setpoint temperature setting should be a minimum of 2 above the low temperature alarm setting If the problem persists then see Solution 3 7 Constantly Experiencing High Temperature Alarm If the growth chamber is constantly going into high temperature alarm then most likely the setpoint temperature setting is too close to the high temperature alarm setpoint setting The setpoint temperature setting should be a minimum of 2 below the high temperature alarm setting If the problem persists then see Solution 3 Thermo Scientific Possible Solutions Thermo Scientific Section 4 Service Note Software version 2 00 and later has a 30 minute delay for the lowe continued 229 high alarm to avoid nuisance alarms caused by door openings 8 10 Ice buildup on evaporator coils Excessive frost buildup is the result of the introduction of outside moisture This may be caused by the eva
22. Set Up the Incubator for Press the UP or DOWN key until the setpoint display shows your Communications selection Press ENTER The value is entered 3 The display should have changed to the following Again the number in the display might be different than 1 This selection is for Status Display Type Listed are the numbered selections with explanations and examples of the values displayed on your computer s monitor when the growth chamber transmits information 0 Used for a raw one line status output suitable for importing into a spreadsheet 1 Used for a multi line format with English headings with continuous screen 2 Used for the format as 1 but preceded by a clear screen command used by terminals or computers running terminal software This mode overwrites the previous transmission With Status Display Type 0 10 5 0 0 Where 10 Actual Temperature 5 0 Setpoint Temperature 0 Normal With Status Display Type 1 or 2 Actual Temperature 10 Setpoint Temperature 5 0 Alarm Status Normal LOW HIGH 4 Allow the setup to time out The growth chamber is now ready to communicate with your computer 6 4 Plant Growth Chamber Thermo Scientific Section 6 Factory Options Setting up the Computer Your communications software will most likely have a setup routine to set for Communication the parameters listed below These are the values the growth chamber is using so the computer parameter
23. V133 O 0 01 3 0 wr R MOTI3A ASLL 3LIHM f TW dol 401 3LIHM wove 401 dV IE NOILVINSNI 03891 0402 30 YOLONGNOD 1 0 52 3LIHM 3LIHM QNhONO PU CO CO c gt a vSOLLLE N d m d 9 FE AO0 Z SSJNBVH OVE 11 Q 034 TS E d L m 5 504 9 30018 IYNINYJL a P a E 2 e e et e QNnou9 S m m 310 335 K L TIP 34 509 6 qd sn 1504 9NIQNIS LAdLNO WYV1V Q 1 1 a HOLIMS uH 7 15 0394 A339 ASSY 318 0 S T 2189746 32 824 ASSY 2017 3803d ASSY 3187 J 4 ASSY SS3NNVH 45 MMd dd ASSY 818 2 1 49V 18 3018 L 118 ree pes gt oe restr 3LIHA ZH 09 0 918 N d AGIL ASSY 154 AOEC Q034 Z YANYOASNVAL 01 0V 8 89 16 N d 6 vOIf MOTI3A QNnON9 Thermo Scientific Plant Growth Chamber 9 2 LHOI I detupnVveudduwa INTOd LYS SH NIN AAO NO LHOI I INTOd LYS 5 A INCGHHOS SH LONIW 5 AV IH AYCSdaNHib AYVCSHNCHM AVXGOS AL AXVGONON 5 Thermo Fisher Scientific
24. amber without covers The evaporation of moisture within the chamber will only add frost and hasten the need for defrosting This chamber is not self defrosting Excessive frost buildup on the evaporator coil located on the lower back wall will also affect temperature uniformity m Do not place any explosive combustible or flammable materials in the chamber 2 Do not place sealed containers in the chamber Sealed containers filled with material do not provide room for expansion and can develop dangerous vapor pressure as the temperature increases 3 Avoid spillage of liquids within the chamber 4 Do not evaporate noxious fumes Caution Do not store containers filled with acidic or caustic solutions as vapors from these materials will attack the evaporator and void the Thermo Scientific Thermo Scientific Section3 Operation and Calibration In the Explanation of Controls section all of the control panel keys were P P y discussed In this section some of those keys will be discussed in greater y 7 detail due to their more involved operation 1 Clock Key Pressing the CLOCK key will enable the user to select the hours minutes and day The clock will continue to function correctly if the growth chamber s power has been removed The date month and year selection is performed in Configuration mode and will be discussed later The date month and year have been preset at the factory If required see CALEND
25. c D Thermo Scientific Precision Model 818 Incubator Plant Growth Chamber Microprocessor Controlled Operating and Maintenance Manual 7013758 Rev 0 Visit us online to register your warranty Thermo www thermoscientific com labwarranty SCIENTIFIC Manual Number 7013758 Covered in this manual Catalog Number Model PR505755L 3759 PR505750L 3758 Preface Volume Ly ft V 989 504 17 8 120V 504 17 8 230V 0 40096 4 3 15 Original new cabinet size technical data Rev ECR ECN Date Description By Thermo Scientific Plant Growth Chamber Preface CAUTION Contains Parts and Assemblies 4 M A Susceptible to Damage by Electrostatic Discharge ESD Important Read this instruction manual 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 A Caution All internal adjustments and maintenance must be performed by qualified service personnel Warning If the growth chamber is not used in the manner specified in this operating manual the protection provided by the equipment design may be impaired Warning Hot warm surface s can occur Depending on ambient termperature and settings surface can become warm up to 60 C A Material in this manual is for information purposes only The contents and the product it describes are subject to change without no
26. displays will go to those in Step D If the AM PM is incorrect use the u or down arrow keys to select the proper one and then press ENTER D The displays will be similar to those below These are for the day selection 5 If the day is correct press ENTER and the growth chamber will return to regular operation and the setting of the clock is complete 5 N If the day is incorrect use the up or down arrow keys to select the day While using the up or down arrow keys observe the seven day of the week lamps for selecting the correct day After the correct day has been selected press ENTER and the growth chamber will return to normal operation and the setting of the clock is complete 2 Set Key Pressing this key will change the displays to one of the combinations shown below m CINTINIDUS At this time the user can select the growth chamber to operate in the PROGRAM mode or CONTINUOUS mode If CONT is displayed and you wish to change to PROG press the up arrow key The displays will return to their normal operation of showing time and temperature Also the continuous lamp will extinguish and the PROGRAM lamp will illuminate The growth chamber will automatically determine the programmed set point temperature and light status for the present time and day of the week Thermo Scientific Section 3 Operation and Calibration If PROG is displayed and y
27. eadsheet program The user can also change the setpoint temperature from their personal computer and periodically monitor the actual temperature setpoint temperature and alarm status Recorder Output This is a DC millivolt output which represents the temperature of the growth chamber The recommended main use of this is with a chart recorder having an input impedance of at least 1M ohm The scaled temperature output change is 1OmV C When the growth Recorder Output Millivolts Temperature chamber is operating at a negative Degree C temperature the chart recorder output is still positive Use the chart at right to relate temperature to output voltage When connecting a chart recorder to the recorder output connector it is recommended to use a shielded cable with the shield grounded at the chart recorder and to keep the cable short as possible Located on the rear side of the growth chamber is an instrumentation port for the user to insert sensor wires external meter leads etc into the chamber The rubber plug provided must always be used in this port to insure the uniformity specifications An extra plug is supplied for the user s convenience Be sure to seal any gaps around the wire s going through the plug Thermo Scientific Section2 Installation Use the proper lifting equipment when moving this unit The shipping weight of this unit is 340 lbs 154 kg To ensure proper ventilation allow 4 minim
28. ed to withstand safely It depends on the nature of the electricity sup ply and its overvoltage protection means For example in CAT II which is the category used for instruments in installations supplied from a supply comparable to public mains such as hospital and research laboratories and most industrial laboratories the expected transient overvoltage is 1500 for a 120V supply 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 measured at ambient temperature of 32 90 F 7 2 Plant Growth Chamber Thermo Scientific Thermo Scientific Section8 Spare Parts DESCRIPTION ASS Y PCB DISPLAY 818 ASS Y PCB 818 CPU ASS Y PCB 818 PWR SUP ASS Y PCB 818 INTERFACE DISPLAY KEYBOARD NEWCO2 ASS Y TEMP PROBE 100 SWITCH ON OFF ASS Y CABLE INTERFACE CABLE ASS Y INT TO REC CABLE ASS Y KEY TO CPU CABLE ASS Y CPU TO INT CABLE ASS Y INT TO PWR BALLAST ASS Y FUSE KIT 10 AMP 115V FUSE HOLDER KIT 115V FUSE HOLDER KIT 230V CORD W PLUG 115V HARNESS 815 818 115V CORD W PLUG 230V HARNESS 815 818 230V FUSE KIT 5 AMP 230V RS232 COMMUNICATIONS OPTION THERMAL CUTOFF SWITCH STOPPER KIT BULB KIT MOTOR FAN REAR MODEL FFU2064DW1 AUTO TRANSFORMER INS TEMP SENSOR BRACKET BACK HAR
29. er 7 High Low Temperature Lamps These lamps will illuminate if the growth chamber s chamber temperature exceeds the high or low limit temperatures 8 Locked Lamp This lamp will illuminate if the user has locked the keyboard to avoid accidental changing of parameters m 2 3 Program J Heater On Continuous High Temperature Alarm n Light On J Low Temperature Alarm PM Light Off Locked TIME TEMPERATURE C Clock Light WV A Set ENTER e o Lock Mute Cal Repeat PROGRAM e e 9 8 18 16 13 LI LA 12 Plant Growth Chamber 1 5 Section 1 Installation and Start Up Explanation of Front Panel Controls cont 1 6 Plant Growth Chamber 9 Light On Off Lamps These two lamps indicate the status of the internal light whether it is on or off during operation 10 Enter Key This key is used after any setpoint selection is made to enter the value into memory 11 Program Key When the program mode is selected with the SET key the PROGRAM key will prompt the user to enter program values starting with SUNDAY A blank schedule sheet is provided toward the end of this manual so the user can predetermine the weeks program Use of the schedule sheet is strongly recommended before any programming is started 12 Set Key This key has two functions The first being to select the continuous or program mode of operation The
30. er 2 1 Section 2 Calibration 2 2 Safety Precautions Plant Growth Chamber The power cord of this instrument is equipped with a three prong grounding plug which mates with a standard three prong grounding wall receptacle to minimize the possibility of electric shock hazard from this apparatus The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded Where a two prong wall receptacle is encountered it is the personal responsibility and obligation of the user to have it replaced with a properly grounded three prong wall receptacle Warning Do not under any circumstances cut or remove third ground prong from the power cord Do not use a two prong adapter plug A Determine the total amount of current presently being used by other apparatus connected to the circuit that will be used for this unit It is critical that the added current demand and other equipment on the circuit not exceed the rating of the fuse or circuit breaker in use Caution Be sure the power supply is the same voltage as specified on the nameplate A When loading the growth chamber a space of 1 2 must be allowed between adjacent items in the chamber This will allow maximum air circulation necessary for proper temperature uniformity The uniformity will be adversely affected if air circulation is obstructed Liquid containers should never be placed in the growth ch
31. essor cycles On Off it is an indication that the starting relay is overriding the control circuit This may be the result of excessive 90 F ambient temperature adjacent to the compressor excess dirt on the compressor or a relay malfunction Provide additional wall clearance and or circulation around the unit clean compressor or contact Technical Services Plant Growth Chamber 4 7 Section5 Maintenance The design of the growth chamber is such that periodic maintenance is kept to minimum No lubrication is required The following paragraphs cover the few minor procedures necessary for continuous operation Warning Turn off power switch and unplug line cord from power source before starting any maintenance procedure A If the chamber needs to be cleaned a mild soap and water solution or bicarbonate of soda 1tbsp gallon of water is recommended When the growth chamber is used frequently below ambient temperatures or in any manner that increases moisture buildup within the chamber an appropriate defrosting schedule must be determined Defrosting is accomplished by turning the growth chamber off for 24 hours Moisture will collect in the drip pan beneath the growth chamber General Cautions m Overcharging a refrigeration system can cause excessive system pressure and can be dangerous 2 The compressor terminal protective cover must be properly in place before applying electric power to the compressor 3
32. eys to select if you want the internal door lamps to be on or off at your first hour and minute selection After your selection is displayed press the ENTER key and the displays will change to the following T F S m PROGRAM NN I dri l Use the up or down arrow keys to select your choice for the second hour for Sunday Note the AM PM lamps After your selection is displayed press the ENTER key and the displays will change to the following Use the up or down arrow keys to select your choice for the second minutes for Sunday After your selection is displayed press the ENTER key and the displays will change to the following m PROGRAN CONTINUOUS Use the up or down arrow keys to select your choice for the setpoint you want the growth chamber to switch to a your second hour and minute you have chosen After your selection is displayed press the ENTER key and the displays will change to the following I Y T F Cm OO 0 ZmpgNINS Use the up or down arrow keys to select if you want the internal door lamps to be on or off at your second hour and minute selection After your selection is displayed press the ENTER key and the displays will change to the following At this point the whole sequence starts over except that it is for Monday instead of Sunday If any of the selections are already what you desire
33. for any day just press the ENTER key to advance to the next parameter While in PROGRAM mode if you do not press any keys for 10 seconds the growth chamber will automatically return to the normal operation mode Plant Growth Chamber 3 5 Section 3 Operation and Calibration 4 Repeat Key This is a convenience key for the user If the user desires to program each day with the same times temperature set points and light conditions then the use of this key is very helpful A Select PROGRAM mode of the growth chamber by using the SET key B Press the PROGRAM key then go to the present day by means of the ENTER key C Select and enter all eight of the days parameters desired D After the last parameter LGT2 is entered for the present day the day of the week lamps will indicate the next day At this time press the REPEAT key After about a half second the displays will return to normal operation E All of the days program schedules will be the same as the present day 5 Lock Key The keyboard may be locked to prevent inadvertent changes to previously stored values To Lock the Keyboard A Press the LOCK key and the displays will show the following Phe ll i um B Using the up or down arrow keys select a numerical password of your choice C Press the ENTER key The LOCKED lamp will light and the displays will return to their normal operation Your numerical password is stored and the keyb
34. ier since the damage is the carrier s responsibility If you follow the above instructions carefully we will guarantee our full support of your claim to be compensated for loss or concealed damage Note Do not for any reason return this unit without first obtaining authorization In any correspondence to Thermo please supply the nameplate data including catalog number and serial number A Plant Growth Chamber 1 1 Section 1 Introduction General Information The growth chamber has been commonly referred to as the standard model 818 The PR505750L can be converted for operation on 200V or 240V by changing the input connections to the autotransformers see wiring diagram at the end of this manual The PR505750L PR505755L Plant Growth Chamber has been designed to provide the ultimate in temperature control The user is assured of dependable and precise performance through the use of microprocessor technology in the temperature control circuitry This growth chamber is operable in the range of 10 to 50 C without illumination and 10 C to 50 C with illumination These temperature ranges will meet a wide variety of applications such as BOD determination general incubation as well as the preservation of critical materials P e rfo rmance D ata with door illumination switch on Uniformity values Temperature stability Heat up time Cool Temperature deviation Maximum temperature down time from Energy from set value spa
35. itch the voltmeter to an AC Volts scale capable of reading 120 volts Thermo Scientific Possible Solutions Thermo Scientific continued C Section 4 Service Measure the voltage between U1 Pin 4 and U1 Pin 6 It should be line voltage 110 VAC to 120 VAC If it is not most likely the Optoisolator is bad and the power supply board should be replaced Measure the voltage TB1 4 Orange wire and 1 6 Red wire It should be approximately 0 VAC If it is not then most likely the triac is bad and the power supply board should be replaced This next section will be to verify the heater command is correct from the microprocessor through the optoisolator and through the triac when the growth chamber IS requesting heat The steps in this section must be followed in succession 1 Select setpoint temperature at least 10 above what the actual temperature is The growth chamber should be requesting heat as indicated by the Heater On indicator lamp on the front panel It should be on continuously not flashing Measure the voltage at U1 Pin 2 with respect to TP2 It should be no greater than 4 volts DC Measure the DC voltage across R4 since the growth chamber is requesting heat there should be current flowing through this resistor making the voltage drop equal to 3 volts 0 5 volts If the last two steps are not as stated then most likely the CPU board is bad and should be replaced Switch
36. ive Maintenance or Extended Warranties please contact us at the number listed below Cleaning and calibration adjustment intervals are dependent upon use environmental conditions and accuracy required Tips for all incubators e Do NOT use bleach or any disinfectant that has high chloros Do not use powdered gloves for tissue cultures e Use sterile distilled or demineralized water 401 Millcreek Road Box 649 Marietta Ohio 45750 USA 740 373 4763 USA and Canada 800 438 4851 e Telefax 740 373 4189 htto www service led marietta thermofisher com Preventive Maintenance for Model 815 Incubators Referto Action Daily Weekly Manual Section Check temperature display versus setpoints w independent instrument Inspect door latch hinges door gasket seal Verify and document temp calibration as applicable See Calibration section 5 Perform a complete decontamination procedure Wipe down interior shelves Between experiments and side panels with disinfectant Rinse everything well with sterile distilled water More frequent decontamination may be required depending on use and environmental conditions Thermo Scientific Plant Growth Chamber 3 11 Troubleshooting Symptoms and Possible Thermo Scientific Causes Section4 Service Warning Service should be performed only by qualified service personnel Exercise care as line voltage is present in the control compartment If ref
37. ive equipment clothing gloves goggles etc Always dissipate extreme cold or heat and wear protective clothing Always follow good hygiene practices Y Each individual is responsible for his or her own safety Thermo Scientific Plant Growth Chamber 1 Preface Do You Need Information or Assistance on Thermo Scientific Products If you do please contact us 8 00 a m to 6 00 p m Eastern Time at 1 740 373 4763 Direct 1 800 438 4851 Toll Free U S and Canada 1 877 213 8051 FAX htto www thermoscientific com Internet Worldwide Web Home Page service led marietta thermofisher com Tech Support Email Address www unitylabservices com Certified Service Web Page Our Sales Support staff can provide information on pricing and give you quotations We can take your order and provide delivery information on major equipment items or make arrangements to have your local sales representative contact you Our products are listed on the Internet and we can be contacted through our Internet home page Our Service Support staff can supply technical information about proper setup operation or troubleshooting of your equipment We can fill your needs for spare or replacement parts or provide you with on site service We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products Whatever Thermo Scientific products you need or use we will be happy to discuss your applications If you are experiencing
38. lues you want beforehand Note In the following setup mode there is a five 5 second time out feature that is active following each entry If the five 5 seconds is exceeded the unit will return to the normal operation mode If the time out occurs before the value was entered start over A 1 With the growth chamber ON simultaneously press and hold the UP and DOWN keys then press the ENTER key The letters will be shown in the display A number other than 96 might be shown in the display Choose the number appropriate for the Baud Rate desired 3 300 600 12 1200 24 2400 48 4800 96 9600 Press the UP or DOWN key until the display shows your selection Press ENTER The baud rate has been entered 2 The display should change to the following Again the number in the display might be different than 0 1 but it will have a decimal point P LI Choose the number appropriate for the Status Update Time Interval desired OO MINUTES uuu et ua q No report Os Between reports 0 5 MINUS S aut ark we dev Between reports JO MINUS gag Between reports donate Between reports eee Between reports vi pusa Between reports 20 0 MINUS ae Between reports GOOM oh son psc PECES Od Res Between reports Thermo Scientific Plant Growth Chamber 6 3 Section 6 Factory Options
39. oard is now locked Note Record your password a safe place The locked keys are CLOCK LIGHT up or down arrow keys REPEAT and PROGRAM 3 6 Plant Growth Chamber Thermo Scientific To Unlock the Keyboard Thermo Scientific Section 3 Operation and Calibration SET and CAL will show the present values but if changes are attempted they will be locked out FEE NEZ l A Press the LOCK key and the displays will show the following B Using the up or down arrow keys select the numerical password that was chosen to lock the keyboard C Pres ENTER The LOCKED lamp will go out and the displays will return to their normal operation The keyboard is unlocked at this point Note If you have forgotten or lost your password enter the number 257 to unlock the keyboard A 6 CALIBRATE KEY The growth chamber is calibrated at the factory for use over a wide range of temperatures Due to the slight non linearization in the control system it may be necessary to make the display match a calibrated thermometer s reading even though the difference might be only a few tenth s of a degree The CALIBRATE key should be used ONLY to match a stable growth chamber s actual temperature to the calibrated thermometer Place a calibrated thermometer or the probe of one at the center of the third shelf of the growth chamber Select the SETPOINT you wish to run the unit at Allow the unit to run for at lea
40. omputer 0 Used for a raw one line status output suitable for importing into a spreadsheet 1 Used for a multi line format with English headings 2 Used for the format as 1 but preceded by a clear screen command used by terminals or computers running terminal software Display the Alarm Status The alarm has three 3 possible values 0 Normal no alarms 1 Low alarm 2 High alarm Thermo Scientific Plant Growth Chamber 6 7 Section Specifications 10 C to 50 C 10 to 50 C Shelves Shelves supplied max max 4 MB 6 Shelf size W x D mm in 642 X 372 25 3 x 14 8 bottom shelf PP Rated Avg Life 12 hour start 24000 hr color cool white supreme Door Illumination color temperature for complete plant testing 4100 K Lumens Brightness per fluorescent lamp 2600 Lm illumination level measured at chamber center point at 20 C 3678 Lux 342 foot candles Indoor use Altitude 2 000 meters Temperature 5 C to 40 C Humidity 80 RH at or below 31 C Installation Conditions decreasing linearly to 50 RH at 40 C Mains Supply Fluctuations Rated Voltage 10 Installation Category ll Pollution Degree 2 Class of Equipment with door illiumination on Thermo Scientific Plant Growth Chamber 7 1 Section 7 opecifications Installation category overvoltage category defines the level of transient overvoltage which the instrument is design
41. ou wish to change to CONT press the down arrow key and the displays will change to the following Now the user can select the SETPOINT temperature to operate at by means of the up or down arrow keys then pressing the ENTER key Note If the user selects the CONTINUOUS mode of operation after being in Program mode the setpoint and light condition will remain the same while the growth chamber was in Program mode A 3 PROGRAM KEY Before reading about this key please take some time to study the sample schedule sheet provided on page 1 4 For each day there are eight items which must be programmed and are as follows Hri Hour 1 AM or PM Minute 1 l esas 4 2 Setpoint Temperature 1 Light On Light Off 1 Hour 2 AM or PM Minute 2 l _ _ _ Setpoint Temperature 2 Light On Light Off 2 a _ When programming it is important to keep in mind that Hour 1 must always be before Hour 2 Also keep in mind that AM is before PM Another important note about the operation of the program mode is that if the present time is before Hour 1 of any day the operation of the growth chamber will be that of Hour 2 of the previous day Thermo Scientific Plant Growth Chamber 3 3 Section 3 Operation and Calibration 3 4 Plant Growth Chamber PROGRAM mode of the 3
42. poration of liquids placed in the chamber or it may be the result of excessive opening of the door during high humidity conditions The door gasket should also be examined for proper seal If repairs are necessary contact Technical Services Excessive line voltage variation Incubator will operate satisfactorily over full temperature range 10 C to 50 C when line voltages vary from nominal voltage by 5 or 10 Larger voltage variations may impair the Temperature Control Correct as required Excessive ambient temperature variation If the growth chamber is placed close to the air conditioning outlet hot radiators or direct sunlight or if the ambient temperature changes drastically the chamber temperature will be affected Correct as necessary Caution The growth chamber should not be operated in an environment where the ambient temperature exceeds 90 F as the compressor thermo overload will be tripped and will result in a wide band control cycle of approximately 4 C Such cycling should not be misinterpreted as a malfunction of the electronic controls 11 12 Overcharged compressor This would happen only if compressor was overcharged after installation For correct charge see nameplate located behind lower portion of door If unit has more charge than shown it will not reach 50 C Compressor must be discharged and recharged correctly The circuit design calls for continuous compressor operation If compr
43. proportioning circuit to achieve sensitive temperature control An RTD Resistance Temperature Detector located in the airstream senses any temperature deviation from the control point and heat is provided proportionally to maintain the desired temperature Regardless of what temperature is being maintained the compressor operates continuously This constant operation alleviates component failures associated with cycle type operation The circulating fan provides even air distribution throughout the chamber and ensures temperature uniformity The program mode of PR505750L PR505755L plant growth chamber allows the user to program into memory 2 sets of values for time setpoint temperature and light condition per day for a full week The following is an example of a schedule and a pictorial describing the events during that week A blank schedule sheet is provided toward the end of the manual for the user to copy then document a schedule It is strongly recommended to do this before any programming is performed The growth chamber leaves the factory with a default schedule as follows Hrl lam Hr2 lpm Minl 00 Min2 00 Setl 20 0 Set2 20 0 LGT1 OFF LGT2 OFF Plant Growth Chamber 1 3 Section 1 Introduction LVS Ic I NOW NIIS 990 i a u a a Wd v Wd 9 ds I 01
44. rigeration service is required after review of the Troubleshooting Section contact Technical Services In any communication with Thermo include the model and serial numbers from both nameplates Problems encountered with any constant temperature chamber will most frequently be related to temperature control Before proceeding with detailed troubleshooting be certain that the Low Limit and High Limit controls are adjusted properly If the limit controls are set too close or beyond the operating temperature the growth chamber may be consistently going into alarm This will result in erratic temperature control First the symptoms and possible causes will be listed for quick reference Possible solutions will be suggested later Warning Hazardous high voltage conditions exist inside the control panel unplug line cord and turn off line switch before removing the cover only qualified electrical instrument personnel are authorized to perform troubleshooting and or servicing Freeze up or gradual drop in chamber temperature No air circulation in chamber inoperative fan see Solution 1 Heater see Solution 2 Power Supply PCB Assembly see Solution 3 RTD Temperature Probe see Solution 3 Step D and or Solution 4 Side walls are getting warm Depending on ambient temperature and the specific settings the side walls may get warm to the touch up to 60 C 140 F This is not a malfunction This is normal due to the location
45. s must match accordingly Also you will probably have to select the COM serial port you chose when you connected the cable from your computer to the growth chamber The software may ask what format the data is in You should choose ASCII Parameter Settings Baud Rate Baud Rate value selected earlier in Step 1 Parity None 0 Data Bits Fight 8 Stop Bits One 1 COM Port Selected by user Format ASCII Using the Communication The growth chamber transmits information on its RS232 port as long the status update time interval is not 0 0 If you start your communication software with the growth chamber on most likely you will see the error s messages as follows ERR VALUE IS READ ONLY ILLEGAL COMMAND Wait for the Status Update Time duration you selected to complete and the communications will correct itself Besides having the growth chamber transmit information in one of the three formats the user can monitor other values or even change some of these from their computer Thermo Scientific Plant Growth Chamber 6 5 Section 6 Factory Options Using the Communication continued 6 6 Plant Growth Chamber The following table lists the available commands for monitoring or controlling your unit MIN Description Range Change Command phan Je Command Actual Temperature 10 to 50 Read Only setpoint Temperature 10 to 50 110 thru 50 V Current Rev Read Only Number Status To Vie
46. second being to select a setpoint temperature if the continuous mode of operation has been selected 13 Up Down Arrow keys These keys are used to increase or decrease a desired value 14 REPEAT KEY This key is a time saver key When in the program mode pressing this key will duplicate the program setting from the current day to the other 6 days 15 CAL KEY This key is used to calibrate the growth chamber to a certified traceable thermometer 16 Mute Key This key is used to silence the internal audible alarm and to also deactivate the external alarm device if one is being used 17 Light Key This key in Continuous mode will turn the internal light on or off In Program mode this key is disabled The internal light will not be allowed to operate at a setpoint temperature below 10 degrees in either the Continuous or Program mode 18 Lock Key This key is used to enable or disable the keyboard 19 Clock Key This key is used to select the day hours and minutes Thermo Scientific Section 1 Installation and Start Up Explanation of Auxiliary the left side of the growth chamber control panel there is an auxiliary Panel Panel which has the items shown the figure the next page They are described as follows 1 Fuse This fuse is in line with the main power cord that comes into the growth chamber The rating of this fuse is printed above the fuse holder The physical size of this fuse is 5mm x 2
47. st an hour after it reaches the setpoint before the calibration is performed Note If possible place the thermometer into a liquid for stability A To perform calibration press the CAL key The displays will show the following Note The temperature displayed will be current operation Then press either the up or down arrow keys to make the display match the noted thermometer reading After the satisfied display is achieved press the ENTER key The temperature display will then return to showing the newly calibrated actual temperature The TIME display will return to displaying the time of day Plant Growth Chamber 3 Section 3 Operation and Calibration 3 8 Plant Growth Chamber 7 ALARMS The growth chamber has high and low alarms There are settable delay timers and alarm band associated with these alarms The high and low timers provide a delay before either alarm will go off if the chamber temperature has deviated from the setpoint temperature by the amount set in the alarm band These time delays and alarm band are used in the control to distinguish between door openings and real alarms The following is an example of this The growth chamber is controlling at 40 0 C and the low delay timer is set for 2 minutes and the alarm band is set for 1 Now the door is opened Most likely the temperature will begin to drop If the door is not closed and the control senses a temperature of 39 C
48. tial difference at chamber RETO ambient temperature 27 point measurement point 1 point according to DIN Uniformity values Temperature deviation temperature from set value spatial 3 point measurement Recovery time after door open Ing according to DIN 12880 according to DIN 12880 measurement 12880 0 6 C 0 2 41 99 1 3 lt 0 2590 54 min lt 0 56 kW 0 25 C 0 15 C 976 lt 0 51 kW 100 42 min Note The above performance figures are based upon the following operating conditions Ambient temperature of 22 C 3 C Line voltage 120V 5 120V version and 230V 5V 230V version The following test protocols have been used 3 point measurement test 1 thermocouple sensor in center of each shelf 1 shelf top position 1 shelf lowest position 1 shelf middle position 27 point measurement test 9 x thermocouples on each shelf 1 shelf top position 1 shelf lowest position 1 shelf middle position based on DIN 12880 point measurement test 1 thermocouple at chamber center point temporal temperature variation characterized by the maximum temperature difference 1 2 Plant Growth Chamber Thermo Scientific Theory of Operation Thermo Scientific Section 1 Introduction The refrigeration system detrost heater and air circulating fan are used in conjunction with a microprocessor controlled
49. tice Thermo Fisher Scientific makes no representations or warranties with respect to this manual In no event shall Thermo be held liable for any damages direct or incidental arising out of or related to the use of this manual 92015 Thermo Fisher Scientific All rights reserved Plant Growth Chamber Thermo Scientific Preface 1 Important operating and or maintenance instructions Read the accompanying text carefully otential electrical hazards Only qualified persons should perform procedures associated with this symbol Equipment being maintained serviced must be turned off and locked off to prevent possible injury Marking of electrical and electronic equipment which applies to electrical and electronic equipment falling under the Directive 2002 96 EC WEEE and the equipment that has been put on the market after 13 August 2005 This product is required to comply with the European Union s Waste Electrical amp Electronic Equipment WEEE Directive 2002 96 EC It is marked with the WEEE symbol Thermo Fisher Scientific has contracted with one or more recycling disposal companies in each EU Member State European Country and this product should be disposed of or recycled through them Further information on Thermo s compliance with this directive the recyclers in your country and information on Thermo Scientific products will be available at www thermoscientific com Always use the proper protect
50. ture 1 for gases and 5 for humidity Our service personnel can provide precise calibrations as a billable service at your location Calibration after a warranty repair is covered under the warranty Damage resulting from use of improper quality water chemicals or cleaning agents detrimental to equipment materials Service calls for improper installation or operating instructions Corrections to any of the following are billable services 1 electrical service connection 2 tubing connections 3 gas regulators 4 gas tanks 5 unit leveling 6 room ventilation 7 adverse ambient temperature fluctuations 8 any repair external to the unit Damage resulting from accident alteration misuse abuse fire flood acts of God or improper installation Repairs to parts or systems resulting from unauthorized unit modifications Any labor costs other than that specified during the parts and labor warranty period which may include additional warranty sensors blower motors water jackets etc Plant Growth Chamber V Thermo Scientific Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Table of Contents Meer LT suyun hum Sa amas 1 1 Unpacking and Damaso er stet pr puwa 1 1 Performance Data aun las e a OR CRD as 1 2 General Information 1 2 Treoin of ODSESUON
51. um clearance between the rear top and sides of the growth chamber and adjacent walls If two or more growth chambers are positioned side by side allow a minimum of 8 between cabinets Adjust the front leveling feet of the growth chamber so that the front is higher than the rear This will assist in door closing Choose a site free from rapidly changing ambient temperature conditions Caution The growth chamber should not be operated in an environment where the ambient temperature exceeds 90 F as the compressor thermo overload will be tripped and will result in a wide band control cycle of approximately 4 C Such cycling should not be misinterpreted as malfunction of the electronic controls A Radiators air conditioning outlets other ventilating system outlets and drafts can affect the operation of the growth chamber by a sudden inrush of air that is at a temperature different than operating conditions Warning For personal safety this apparatus must be properly grounded A Wall mount brackets are attached to the top rear of the cabinet Remove any packaging materials from the brackets Rotate the brackets so they point straight out from the back Secure bracket in place with the included hardware Attach brackets to wall Figure 2 1 Brackets During Shipping Figure 2 2 Brackets During Use The power cord is the mains disconnect Make sure the outlet and plug are accessible at all times Thermo Scientific Plant Growth Chamb
52. w Data If Status Update Time is 0 0 no data will automatically be displayed To view data within a particular command code type that command code followed by the question mark symbol and then ENTER Return Example To view Setpoint Temperature type T To Change Data To change the value within the command type the command code followed by the new value and ENTER Return Example 1 To change Setpoint Temperature to 25 0 C type T25 0 lt CR gt Example 2 To change Setpoint Temperature to 8 C type T 8 lt CR gt A Actual Temperature The actual temperature within the growth chamber Thermo Scientific Section 6 Factory Options Using the Communication T Setpoint Temperature The temperature at which the user has selected continued the growth chamber to operate R Baud Rate The rate at which data is transmitted between the growth chamber and your computer 0 300 Baud 1 600 Baud 2 1200 Baud 3 2400 Baud 4 4800 Baud 5 9600 Baud S Status Update Time Interval The time between data messages sent from the growth chamber to your computer 0 0 Minutes No report 1 0 1 Minutes 6 seconds 2 0 5 Minutes 30 seconds 3 1 0 Minutes 4 2 0 Minutes 5 5 0 Minutes 6 10 0 Minutes 7 30 0 Minutes 8 60 0 Minutes V EPROM Version Number The growth chamber software version level D Status Display Type Selection of format that data is sent to your c
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