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Summary of Contents for Thermo Electron 815
- Page 1 Installation/Service Manual Microprocessor Controlled Low Temperature Incubator Model 815 (3721/3722) Thermo Electron Corporation Millcreek Road, Box 649 Marietta, Ohio 45750 Phone: 740-373-4763 Toll Free: 800-848-3080 FAX: 740-373-4189 Manual P/N 3177879 Rev E Dated 1 June, 2005...
- Page 2 THE MATERIAL IN THIS MANUAL IS FOR INFORMATION PURPOSES ONLY. THE CONTENTS AND THE PRODUCT IT DESCRIBES ARE SUBJECT TO CHANGE WITHOUT NOTICE. THERMO ELECTRON CORPORATION MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THIS MANUAL. IN NO EVENT SHALL THERMO BE LIABLE FOR ANY DAMAGES, DIRECT OR INCIDENTAL, ARISING OUT OF OR RELATED TO THE USE OF THIS MANUAL.
- Page 3 REVISION STATUS INDEX DATE AMENDED PAGES NOTES Initial Release 6/99 8/99 Update parts list for new kit #'s 9/01 18-20 Removed dual fans, updated parts list 12/04 18-20 Update for base model FFU2064DW1 6/05 36100114 (34001729) manual #, manufacture location...
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Page 4: Table Of Contents
Contents Introduction .......................... 1 Unpacking and Damage ....................... 1 General Information ......................2 Performance Data ........................ 2 Explanation of Controls ......................3 Instrumentation Port ......................5 Installation ..........................6 Operation ..........................7 Servicing ..........................8 Troubleshooting ........................8 Maintenance ........................12 Installation and Operation of the RS232 Option ...................... -
Page 6: Introduction
INTRODUCTION UNPACKING AND DAMAGE Your satisfaction and safety are important to Save all packing material until unit is put into Thermo and a complete understanding of this unit service. This merchandise was carefully packed is necessary to attain these objectives. and thoroughly inspected before leaving our factory. -
Page 7: General Information
UPON THE FOLLOWING OPERATING CONDITIONS: PAGE 17). LINE VOLTAGE ....110.5 TO 112.5 AMBIENT TEMPERATURE ... 22.5° TO 24°C The 815 Low Temperature Incubator has been designed to provide the ultimate in temperature Theory of Operation control. The user is assured of dependable and... -
Page 8: Explanation Of Controls
EXPLANATION OF CONTROLS 6) HIGH/LOW LIMIT KEY - This key is used to view the high or low temperature alarm setpoint The -Front Panel- first depression of the key selects the high limit. The second depression selects the low limit. The 1) HEATER ON LAMP - The "Heater On"... - Page 9 -Explanation of Auxiliary Panel- On the left side of the incubator control panel there is an auxiliary panel which has the items shown in VOLTAGE SOURCE the figure below. They are described as follows: 1) FUSE - This fuse is in line with the main power cord that comes into the incubator.
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Page 10: Instrumentation Port
INSTRUMENTATION PORT Located on the chart recorder printed circuit board is an offset potentiometer R3. If for some reason the recorder output voltage does not match the Located on the rear side of the incubator is an temperature as shown in the chart, this instrumentation port for the user to insert sensor potentiometer can be used to tune it in. -
Page 11: Installation
INSTALLATION Determine the total amount of current presently being used by other apparatus connected to the Location circuit that will be used for this unit. To assure proper ventilation, allow a minimum of It is critical that the added current demand and 4"... -
Page 12: Operation
OPERATION The CALIBRATE key should be used ONLY to match a stable incubator's actual temperature to Power up by depressing the ON/OFF switch. the calibrated thermometer. Immediately after turning on power, all the segments of the display and all of the indicators Place a calibrated thermometer or the probe of will be on. -
Page 13: Servicing
TROUBLESHOOTING .Press the HIGH/LOW LIMIT key twice. The green "Low Temperature Alarm/Setpoint" indicator should be lit. Use the UP or DOWN arrow keys to select Problems encountered with any constant your limit value. Then press the ENTER key. If the temperature chamber will most frequently be LOW LIMIT value you have selected is above the related to temperature control. - Page 14 Does not reach a high set point temperature: WARNING HAZARDOUS HIGH VOLTAGE CONDITIONS EXIST No air circulation in chamber; inoperative fan (see INSIDE CONTROL PANEL. TURN "OFF" LINE SWITCH ON FRONT PANEL AND UNPLUG LINE Remedy 1) CORD. Low line voltage, less than 110V (see Remedy 9) RTD Temperature Probe (see Remedy 3, Step D Remove all screws that fasten the cover.
- Page 15 There is another device known as an -Measure the DC voltage across R4, since Optoisolator which serves as the high/low the incubator is not requesting heat, there voltage isolator between the triac and the should be no current flowing through this microprocessor.
- Page 16 If the last two steps are not as stated then Before coming to the conclusion that the probe most likely the CPU board is bad and it will is bad when one of these displays appear, have to be replaced. check the connection of the probe to the circuit board.
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Page 17: Maintenance
MAINTENANCE Excessive line voltage variation: Incubator will operate satisfactorily over full temperature range (-10°C to 50°C) when line The design of the incubator is such that periodic voltages vary from nominal voltage by -5% or maintenance is kept to a minimum. No lubrication +10%. -
Page 18: Installation And Operation Of The Rs232 Option
Connect the other end of the cable to the cable Signal Ground (O V) connector on the RS232 PCB assembly (see sketch). Replace the control panel and secure with the eight (8) screws. TOP VIEW OF CONTROL PANEL To J304 Assy, PCB, 815 CPU #34381002... - Page 19 Setting up the Incubator for Communications The display should change to the following. Again, the number in the display might be Your Incubator will require the selection of 3 different than 0.1, but it will have a decimal parameters for communications: point.
- Page 20 Using the Communications: With Status Display Type = 0: The incubator transmits information on its RS232 -5.0 Port as long as the status update time interval is not “0.0.” Where: If you start your communication software with the 10 = Actual Temperature incubator on, most likely you will see the error(s) -5.0 = Setpoint Temperature messages as follows:...
- Page 21 To Change Data: To change the value within the EPROM Version Number: The incubator command type the command code followed by the software version level. new value and ENTER (Return). Status Display Type: Selection of format Example 1: To change Setpoint Temperature to that data is sent to your computer 25.0°C type: T25.0 <CR>...
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Page 22: Wiring Diagrams
WIRING DIAGRAMS... -
Page 24: Parts Replacement List
FU SE H O LD ER K IT, 230V 3178031 C O RD W /PLU G , 115V 177651 H A R N ESS , 815 B O D , 115V 176551 C O RD W /PLU G , 230V 177652... -
Page 25: Warranty
At Thermo's option, all non-conforming parts must be returned to Thermo Electron Corporation postage paid and replacement parts are shipped FOB destination. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL OR IMPLIED.
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