TC-324C User`s Manual
Contents
1. ration Defects Thermistor Considerations 2 Operation Automatic Mode Manual Mode escus Connection to External Devices ld InzEine Healers mm Ote RUE 10 USING Other Devices oerte pc tesa rin 10 Appendix terreas wcll caste rer enr Ps 11 Accessories and replacement parts 11 CC 35 Connector pin designations 13 Warranty and Service isses 13 Warranty Service Nol8S trn tie v i d eet 13 Publication 5700 001 REV E sjueunJijsu 191103002 19 eeH euueu Single Channel Heater Controller Warner Instruments Introduction The TC 324C Single Channel Automatic Heater Controller from Warner Instruments is a versatile and simple to use thermal control device Although designed for use with Warner Series 20 chambers or in line solu tion heaters this instrument can be easily adapted for use with custom built equipment according to the requirements of the user Total automatic control of heating power is provided in automatic mode while manual control is available in manual mode A loop speed selector is used to optimize the response of the system to accommodate the thermal delay characteristics intrinsic to the environment Features of the TC 324C include Dual thermistor design2. Automatic and manual modes Control thermistor fault open detection e Selectable loop speed optimizes system speed and stability Selectable temperature set modes internal external Simultaneous monitoring of system temperature and a separate point of interest Optimized for use with Warner perfusion and imaging chambers Compatible with SH 27B In line Solution Heater etc e Provides 22 W of heating power into a 100 load THIS EQUIPMENT IS NOT DESIGNED NOR INTENDED FOR USE ON HUMAN SUBJECTS Nomenclature Text Conventions This manual refers to device controls at two functional levels specific con trols and settings of these controls To minimize the potential for confusion we have employed several text conventions which are specified below Since our goal is to provide clarity rather than complexity we welcome any feedback you may wish to provide e Warner Instrument product numbers are presented using bold type References to controls are specified using SMALL CAPS References to control settings are specified using italic type e Special comments and warnings are presented in Any other formatting should be apparent from context Publication 5700 001 REV E Control Description Front Panel A schematic of the face panel of the TC 324C is shown below Important components are identified by letter B H J Please refer to this diagram as an aid in identification of described components T
3. remplac par l utilisateur veuillez nous contacter pour toutes r parations H The device should be operated and stored in a temperature range of 5 35 C 41 95 F and humidity range of 5 95 noncondensing relative humidity D Installation Clearances Instrument shall have 5 cm clearance on both sides when rack mounted and 12 cm side clearances other wise Instrument should not be stacked on top of heat produc ing equipment without a minimum spacing of 9 cm J This device features a three prong grounded power cord Do not remove the ground pin or operate the device when ungrounded K The two disconnecting devices for this controller are the appli ance coupler on the back panel and the outlet plug cap Both disconnects should remain accessible during operation of the device NOTE If this equipment is used in a manner not specified by the manufacturer in this user manual the protection provided by the equipment may be impaired IMPORTANT CUSTOMERS OUTSIDE OF THE U S Please be sure to contact us before return shipping any goods We will provide instructions so that the shipment will not be delayed or subject to unnecessary expense in clearing U S Customs Publication 5700 001 REV E Declaration of Conformity CE MARKING EMC and CB Scheme We Manufacturer s Name Manufacturer s Address Harvard Apparatus Warner Instruments 84 October Hill Road Holliston MA 01746 Tel 508 893 8999 We herewith delcare t
4. the MAIN POWER is On Loop Speed Switch Item G Sets the feedback loop speed for the heater sensor system when the device is used in automatic mode Options include fast medium and slow Optimally set to fast for most applications but can be set to medium or slow for systems with longer thermal delay characteristics Output Connector Item H Connects the TC 324C to attached heater blocks and sensor thermistors When used with Series 20 chambers and platforms the CC 28 heater cable connects here The in line solution heaters also connect here Thermistor Recorder Input and Output Items J T2 Input and T2 Output BNC connectors are provided to send thermistor readings T2 signals to a data acquisition system or chart recorder Outputs are calibrated to 100 mV C T2 Input Used as an optional thermistor input for those configurations where a T2 Monitor thermistor is not included in the normal setup such as with an In line Heater Sensed thermistor readings can be displayed on the meter and sent to a recording device via the standard T2 output BNC Up Down LED s Item K Red and yellow 18 indicate relative power applied to heater Open Thermistor LED Item L Should a control thermistor T1 fail during operation the open ther mistor warning LED will light indicating the error mode When an open thermistor is detected the device output is automatically returned to zero volts This design feature prevents inadvertent ov
5. EMPERATURE SET MANUAL VOLTAGE WARNER e e TC 324C e INSTRUMENTS TEMP SET HEAT UP EXTERNAL e HEAT pown Ti EN Un d POWER TEMP MONITOR TEMP SET TEMP OUTPUT VOLTS e e MANUAL Located directly under the Warner logo Supplies power to the TC 324C Output Switch Item B Supplies or removes power to the OUTPUT CONNECTOR Item H Selects between Automatic Mode Manual Mode or center off The associated green LED is lit when output power is on auto or manual mode selected Set Temperature Control Internal amp External Item C Used to adjust the set point of the automatic control system The associated green LED is on when the controller is set to Automatic Mode on the OUTPUT sWITCH item B Manual Voltage Control item D Used to manually set the voltage output to the heater device The associated green LED is on when the controller is set to Manual Mode on the OUTPUT sWITCH item B Meter Selector Switch Item E SELECTOR SWITCH selects the parameter that the METER Item F will display Options include Set Temperature T1 Control T2 Monitor and Output Voltage Publication 5700 001 REV E sjueunijsu JOUIEM 191103007 19 eeH E Single Channel Heater Controller Warner Instruments Control Description Conto Meter Item F Displays the parameter selected by the METER SELECTOR SWITCH Item E The METER also provides an indication that
6. Single Channel Heater Controller Model TC 324C Order 64 2400 TC 324C iic eo E un MERERI RE a uc SET i uP 9 HEA ee T THERMISTOR OUTPUT CONTROLTEMP MONITOR TEMP SET TEMP OUTPUT VOLTS MONITOR TEMPERATURE AUTOMATIC TEMPERATURE CONTROLLER WARNER A INSTRUMENTS A Harvard Apparatus Company Publication 5700 001 REV E WEEE RoHS Compliance Statement EU Directives WEEE and RoHS To Our Valued Customers We are committed to being a good corporate citizen As part of that commitment we strive to maintain an environmentally conscious manufacturing operation The European Union EU has enacted two Directives the first on product recycling Waste Electrical and Electronic Equipment WEEE and the second limiting the use of certain substances Restriction on the use of Hazardous Substances RoHS Over time these Directives will be implemented in the national laws of each EU Member State Once the final national regulations have been put into place recycling will be offered for our products which are within the scope of the WEEE Directive Products falling under the scope of the WEEE Directive available for sale after August 13 2005 will be identified with a wheelie bin symbol Two Categories of products covered by the WEEE Directive are currently exempt from the RoHS Directive Category 8 medical devices with the exception of implanted or infected products and Category 9 monit
7. UAL VOLTAGE control Item D fully counterclockwise to zero Series 20 Chamber Setup The CC 28 cable assembly is used to connect Series 20 Chambers to the TC 324C Heater Controller The chamber end of the cable includes two connectors that attach to the resistive heaters in the heater platform Two thermistors are also provided one for feedback and one for monitoring the bath temperature The connector end plugs directly into the TC 324C OUTPUT CONNECTOR Item H Setup Assembly instructions 1 Assemble the Series 20 Chamber as described in the instructions supplied with the chamber 2 Connect the outboard end of the CC 28 Cable to the Series 20 platform a First attach the two blue 3 pin connectors on the cable to the heater resistors on the platform b Next insert the larger thermistor white wires or white band on the cable into the small hole in the side of the platform HINT To assure good thermal contact between the thermistor and platform place a drop of mineral or immersion oil in the thermistor hole prior to insertion Place the small bead thermistor into the chamber reservoir NOTE You will most likely need to restrain the cable and thermistor bead as the bead must be completely submerged for accurate temperature measurements Fill the solution bath to the desired level HINT For accurate temperature control protect the microscope stage from drafts The solution surface offers a large surfa
8. URE control Item C is disconnected as is the feedback system of the TC 324C The instrument now operates as a 0 15 VDC power supply that can provide up to 1 5 A of current to a device Use this mode with heater systems that will operate properly with a fixed voltage and lack feedback thermistors Connection To External Devices In Line Heaters The SH 27A and SF 28 In Line Solution Heaters connect directly into the TC 324C Output connector Item H For these devices the temperature of the solution is monitored by a thermistor placed at the outflow end of the in line heater This is the T1 CONTROL thermistor The T1 RECORDER OUTPUT BNC Item J on the TC 324C rear panel can be used to measure the temperature of this thermistor at a scale factor of 100 mV C A second thermistor plugged into the T2 INPUT on the instrument front panel can be used to measure the temperature at any other point of interest Using Other Devices A CC 35 Cable Assembly is required for connecting other external devices to the TC 324C Heater Controller See the Appendix for CC 35 pin designations Publication 5700 001 REV E Appendix sjueunJjsu JOUIE Specifications Maximum Output Voltage Maximum Output Current Minimum Load Resistance Manual Voltage Range Maximum Output Power Power Requirements Power Fuse 5 x 20 mm Front Panel Recorder Input Output Rear Panel Recorder Output Temperature Range Internal Set Temperature External Set Te
9. ce area for heat exchange and minimizing air flow in the immediate vicinity will ease your temperature control requirements Turn the controller POWER on Switch the METER SELECTOR switch Item E to Set Temp and adjust the SET TEMPERATURE Control Item C to the desired temperature Observe setting METER Set the Loop SPEED switch item G to fast Switch the METER SELECTOR switch Item E to 77 Control Set the OUTPUT switch Item B to auto The OUTPUT LED will be lit to indicate that power is being applied to the heater Observe the METER to assure that the temperature is approaching the set temperature The HEAT UP and HEAT DOWN LED s indicate the direction of heating control NOTE If the system is set up properly this is all that is needed to maintain a constant temperature in the chamber Publication 5700 001 REV E E sjueunijsu 191103002 5 5 Single Channel Heater Controller Warner Instruments Setup Cont d 10 Allow time for the system to stabilize at the desired temperature Set the METER switch Item E to 72 Monitor This will display the reading of the monitor thermistor submerged in solution This reading will most likely be lower than the platform set temperature due to the thermal gradient between the platform and the solution The temperature at the sample T2 thermistor reading can be adjusted to the desired setting by increasing
10. curs within this period we will either repair or replace the faulty component s This warranty does not cover instrument failure or damage caused by physical abuse or electrical stress inputs exceeding specified limits In the event that instrument repairs are necessary shipping charges to the factory are the customer s responsibility Return charges will be paid by Warner Instruments Inc Normal business hours are 8 30 AM to 5 30 PM EST Monday through Thursday and 8 30 AM to 5 00 PM on Friday Our offices are located at 84 October Hill Rd Holliston MA 01746 and we can be reached by phone at 800 599 4203 or 800 272 2775 Our fax number is 203 776 1278 In addition we can be reached by e mail at support warneronline com or through our Web page at http www warneronline com Operation and Service Notes Please refer all questions regarding service to our Engineering Department A If the instrument METER light fails to light check the fuse at the rear panel located in the black POWER INPUT MODULE If the fuse is found to be defective replace it with a 5x20 mm 0 5 slow blow fuse 0 25 A for facilities using 220 240 V line voltages If the replacement fuse also fails please call Warner Instruments for assistance B Occasionally a knob on the front panel will loosen after long use These are collet style knobs and are tightened with a screw located under the knob cap To gain access to the adjust ment screw pry
11. d the optimum feedback rate If the temperature of the CONTROL THERMISTOR is more than 0 5 C above the set temperature the voltage applied to the heater element will be immedi ately set to 0 V removing power to the heater The output voltage will remain at until the temperature of the CONTROL THERMISTOR becomes less than 0 5 C above the set temperature at which point power will be gradually re applied to disallow the system temperature to fall too far below the temperature set point It is normal for some overshoot to occur while the temperature is stabilizing and these features prevent the temperature from reaching very high levels during this time If the control themistor becomes open circuit it will indicate a low temperature This will cause the Automatic Mode to raise the temperature indefinitely The TC 324C has a circuit that checks for an open thermistor and removes output power to the heater to prevent overheating An LED on the front panel will indicate an open thermistor condition Publication 5700 001 REV E sjueunijsu 19103007 JQUUeYD E Single Channel Heater Controller Warner Instruments Operation Manual Mode In manual mode the MANUAL VOLTAGE control Item D is used to set the out put voltage to a fixed value The voltage setting can be viewed with the METER when the METER SELECTOR switch Item E is set to Output Voltage In manual mode the SET TEMPERAT
12. erheating and subsequent damage to the equipment or biological preparations NOTE When an open thermistor is detected the voltage output folds back to 0 1V as long as the LED indicator is on Once the fault has been corrected the LED will turn off and the system will resume heating immediately NOTE In the rare event of an open or shorted OUTPUT fault the voltage output folds back to 0 01V to protect the user and equipment The unit must be completely powered down 30 seconds and restarted to clear this fault mode and resume normal operation Publication 5700 001 REV E Control Description 115 VAC to 230 VAC Conversion ATTENTION PLEASE READ BEFORE APPLYING POWER TO YOUR The unit has been factory set to be used with 115 VAC If the operating voltage needs to be changed to 230 VAC then use the enclosed kit power cord 1 ea and 0 25 A fuses 2 ea for the conversion Note that the unit only uses a single fuse the second fuse is sent as spare Power Entry Module Fuse holder side view Push out drawer to access the Spare Fuse Active Fuse Step 1 Step 2 Depending on AC Voltage being used turn VAC selector switch to 110 VAC or 220 VAC For 90 110 115 and 120 VAC use the 110 position For 220 230 240 and 260 VAC use the 220 position Carefully pry open the fuse holder from the r
13. hat the following product Equipment Description Product Name Standards Heater Controller TC 324C IEC 61326 1 ed1 0 2005 12 FCC 47CFR Part 15 2013 Subpart B Class B To which this declaration relates is in conformity with the applicable EC Directives harmonized standards and other normative requirements Safety EMC Directives Emission Immunity Directive IEC 61010 1 2010 Third Edition FCC 47CFR Part 15 2013 Subpart B CISPR 11 2003 Group 1 All Class B IEC61000 3 2 2000 IEC61000 3 3 2002 IEC61000 4 2 2001 IEC61000 4 3 2002 IEC61000 4 4 2004 IEC61000 4 5 2001 IEC61000 4 6 2003 IEC 61000 4 8 1993 A1 2000 IEC61000 4 11 2004 EMC and Safety compliance were evaluated by Intertek I the undersigned hereby declare the equipment specified above conforms to the above Directive s and Standard s Place Date HARVARD APPARATUS WARNER M INSTRUMENTS Publication 5700 001 REV E United States October 31 2013 Signature Beth Bauman V P Engineering Operations sjueunJijsu JouJeM 191103002 euueu Notes L NS 191104002 1 1 1 5 1J9uJeM Publication 5700 001 REV E
14. ible or will require recalibration of the TC 324C Publication 5700 001 REV E Operation The main use of a heater control device such as the TC 324C is to maintain a constant bath temperature with minimum deviation from a set tempera ture This is usually achieved by using a heated chamber platform an in line solution heater or a combination of both Automatic Mode In Automatic Mode the TC 324C maintains the temperature of the con nected heater thermistor system at the value set by the user The selectable LOOP SPEED Control Item G is used to adjust the speed of the feedback loop in the heater thermistor system which controls the rate of change of its output voltage Non Warner heater systems with feedback thermistors can be used in automatic mode provided they are compatible with the TC 324C requirements Temperature can be set by the controls on the front panel when the device is in internal temperature set mode In external temperature set mode a voltage applied to a rear panel BNC sets the temperature at 100 mV C LOOP SPEED is normally set to fast to provide the shortest time between the application of power to the heater element and the sensing of temperature at the thermistor For heater thermistor systems with long response times the fast setting will cause the measured temperature to overshoot the tar get by a large amount resulting in system oscillation For this condition try medium slow settings to fin
15. ight side by using a small flat screwdriver Replace fuse according to voltage being used Item 64 0100 Model TC 324C use For 115 VAC 0 50 Amp 5x20 mm Slow Blow For 230 VAC 0 25 Amp 5x20 mm Slow Blow Publication 5700 001 REV E sjueunJijsu JOUIE 191103002 ouueu Single Channel Heater Controller Warner Instruments Control Description Conto Rear Panel M N T1 Output Item M BNC connectors are provid ed to send thermistor read ings T1 signals to a data acquisition system or chart recorder Outputs are cali brated to 100 mV C External Temperature Set Input BNC for adjusting the set temperature of the TC 324C Input functions only when internal external select switch Item C is set to external and the output mode switch Item B is set to auto Units are 100mV C across the temperature range of ambient to 65 C Can be used for remote or computer control of set temperature Ground Terminals Item O Provides separate connections for chassis and circuit ground Banana jacks are bridged when shipped from the factory Setup The TC 324C can be used to drive the heater blocks for Warner Series 20 Chambers or for providing power to other devices such as our In line Solution Heaters NOTES a Please refer to the front panel schematic on page 3 for orientation b Turn both the SET TEMPERATURE control Item C and the MAN
16. mperature Meter Display Meter Readouts Enclosure W x H x D 15 VDC 15A 10 0 O 0 0 to 15 0 VDC 22 W into a 10 O load 95 130 or 200 260 VAC 50 60 Hz 0 5 A Slow Blow for 95 130 VAC and 0 25 A Slow Blow for 200 260 VAC T2 thermistor monitors BNC reporting 100 mV C BNC input calibrated at 10 0 at 25 C T1 control BNC reporting 100 Ambient to 65 C 22 C to 65 C Ambient to 65 C 3 5 digit LED display of C or V Set temperature T1 control temperature T2 monitor temperature Output voltage to heater 43 2 x 8 9 x 30 5 cm 17 0 x 3 5 x 12 0 in Accessories and Replacement Parts Model Order Description CC 28 64 0106 CC 35 64 0109 Publication 5700 001 REV E Cable Assembly for Series 20 Heater Platforms Cable Assembly with Unterminated Outboard Ends E 191103007 euueu Single Channel Heater Controller Warner Instruments Appendix Conto Color Designation pe Pa O T2 Monitor po No connection Thermistor common N C N C Control Thermistor T1 N C Heater ground Monitor Thermistor T1 The 8 pin DIN connector viewed Heater from solder side Publication 5700 001 REV E Appendix Warranty amp Service Warranty The model TC 324C is covered by our Warranty to be free from defects in materials and workmanship for a period of two years from the date of shipment If a failure oc
17. oring and control instruments Most of our products fall into either Category 8 or 9 and are currently exempt from the RoHS Directive We will continue to monitor the application of the RoHS Directive to its products and will comply with any changes as they apply Do Not Dispose Product with Municipal Waste Special Collection Disposal Required Table of Contents E 2 Nomenclature esee e enn nna 2 Text Conventions essent 2 Control Description atur tatnen tanus PANG eer rate Output Switch Item B Set Temperature Control Item C Manual Voltage Control item D Meter Selector Switch Item E Meter Item Bs Loop Speed Switch Item G Quiput Connector ltem Al Thermistor Recorder Input Output Items J Up Down LED s Item Open Thermistor LED Item L AC Conversion T1 Input Item M essasi External Temperature Set Item E Ground Terminals ltem tti 6 Series 20 Chamber Setup sse Assembly instructions csset rtt anre Operating With Other Equipment Load
18. the cap off with a thin bladed screwdriver or similar tool C Should service be required please contact the factory The problem may often be corrected by our shipping a replacement part Factory service if required will be expedited to minimize the customer inconvenience D Instruments are inspected immediately upon receipt and the customer is notified if the repair is not covered by the warranty Repairs can often be completed in 1 2 days from our receipt of the instrument Publication 5700 001 REV E sjueunJijsu 191103002 euueu Single Channel Heater Controller Warner Instruments Appendix Conto E If factory service is required please observe the following instructions D Package the instrument with at least 3 inches of cushioning on all sides Use the original shipping carton if it is available 2 Insure the shipment for its full value 3 Include with the shipment an explanation of the problem experienced F Cleaning Instructions Wipe exterior surfaces with a clean damp cloth G High Voltage Not for clinical use on humans To avoid AN risk of electric shock do not open top panel There are no internal user serviceable parts please contact us for repair Haut Voltage Non con u pour essaies cliniques sur l bumain Afin d viter le risque de choque lectrique ne pas ouvrir le panneau sup rieur L appareil ne contient aucune pi ce pouvant tre
19. the sET TEMPERATURE setting as described in step 6 above This is an example of static solution warming and is the simplest form of temperature control Temperature control is more complex in a system where solution continuously flows across the bath The best method for providing stable temperature control for a flowing solution is to pre heat the solution with an in line heater in conjunction with platform heating Operating With Other Equipment The TC 324C can be used to power other Warner equipment such as the SH 27B and SF 28 Slow Flow Solution Heaters In addition the controller can be used as an independent device to power third party equipment as long as the following considerations are met Load Resistance The TC 324C heater controller will work well with many other heating devices To obtain maximum heating power the resistance of the heating element should be between 10 18 Q but any element that works at a maximum of 15 V and 1 5 A will also work with the TC 324C Thermistor Considerations The TC 324C heater controller was designed to accommodate Unical thermistors from Thermometrics Edison New Jersey This family of thermistors can be interchanged without recalibration of the instrument The nominal resistance of Unical thermistors is 10 0 kQ at 25 C Other thermistors may be used with the TC 324C if the nominal resistance also is 10 0 at 25 C The use of thermistors with other characteristics may not be poss
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