832 Temperature Regulator User's Guide
Contents
1. adjust the minimum and 1 2 the maximum tempera mA aN tures for which the alarm Max Next Prev Quit is set This is done for both 7 of the thermostating 8 7 6 5 4 cuvettes racks 1 Alarm Indicator This indicates the thermostating cuvette rack to which the temperatures relate A or B 2 Temperature yyy represents minimum alarm temperature of the Indicators thermostating cuvette YYY represents maximum alarm temperature of the thermostating cuvette A aaa represents the target temperature for thermostating cuvette B bbb represents the target temperature for thermostating cuvette B You may set different alarm limits for each rack U indicates the temperature units C F or K 3 Alarm Status Identifies the thermostating cuvette rack and indicates the temperature limits 4 Soft Key Labels Tell you the function of the soft touch keys for this screen see below 5 Quit Press this key to return to the ready to run screen 37 Setting Up and Operating 4 Setting Up 38 6 Prev This key is used to return to the previous screen accessed except for the first screen the ready to run display is returned 7 Next This key is used to skip to the next screen except after the last screen the ready to run display is returned 8 Change Limits Press this key to toggle between the maximum and minimum alarm2. a 7 data from slave a 3 data from master n 8 data from master a 4 clock from master a 9 clock from master a5 reserved System Example Before running a system from a com puter you need to connect the devices and install the software The example represents an isocratic HPLC system with two thermostatically controlled cuvettes The system is controlled by the computer linked to the 506C interface with an RS232C cable GSIOC cables are used to connect the interface and all modules in the system including for contact control purposes except the thermostating cuvettes which are linked to the 832 Temperature Regulator by their own special cables You can start and stop the thermostating process from the computer via GSIOC or directly from the 832 Temperature Regulator s integral keypad providing Installation 3 you first send an unlock command amp from the computer 9 3 lt a O O XL Sampling Injector Master Computer PC Gilson Controller Software l Thermostating cuvettes Normally the system waits for the target temperature to be reached before starting the run However you may initiate a run before the target temperature is reached The system stops if the temperature goes out of a user set security gap defaults to 2 degrees 31 Installation 32 Setting Up and Operating 4 The purpose of the 832 Temperature Regulator is to control the temperature
3. Lines may be individually reconnected to the software by sending W or W Sending W alone reconnects all of the display The sign is replaced by in all W commands Characters shown on display unit may differ from those sent from controller 55 Appendices 6 Part Numbers and Accessories Part Numbers Part Numbers and Accessories Part Number Item Qty LT801224 User s Guiide 1 6730204007 Fuses 2 Amp type T slow blow 5 7080316106 Power cord 220 240 Volts 1 7080316105 Power cord 100 120 Volts 1 Additional Accessories Part Number Item Qty 2759550 Peltier Effect Thermostating cuvette 1 2704473 Rack holding kit for use with Thermostating cuvettes on large samplers sampling injectors 1 2704471M Rack holding kit for use with Thermostating cuvettes on small samplers sampling injectors 1 27044307 Rack cover SS for code 30 Al racks 1 27044317 Rack cover SS for code 31 Al racks 1 27044337 Rack cover SS for code 33 Al racks 1 27044347 Rack cover SS for code 34 Al racks 1 27044377 Rack cover SS for code 37 racks 1 27044387 Rack cover SS for code 38 racks 1 638308512 Barrier strip connector for electrical control 8 pin 1 56 Appendices 6 Technical Data Temperature Regulator Type Microprocessor Controlled Size and Weight 29 x 16 x 14 cm 3 8 kilograms Temperature Range 4 C to 40 C Increment 1 C 1 0 C can be Accuracy 1 5 C Stability 0 5 C achieved see U
4. For safe and correct use of the instru ment it is essential that both operating and service personnel follow generally accepted safety procedures as well as the safety instructions given in the 832 Temperature Regulator User s Guide The instrument described in this User s Guide is a temperature regulator that should only be used in the laboratory or similar indoor environment for ana lytical purposes by qualified personnel If the instrument is used in a manner not specified by Gilson the protection provided by the instrument may be impaired Voltages present inside the instrument are potentially dangerous If there is a problem with the instrument the power cable should be removed until qualified service personnel have repaired it This is to prevent anyone from inad vertently using the instrument thus causing possible harm to themselves or damage to the instrument itself The leakage current of this instrument is within the limits allowed by safety standards of laboratory equipment Ayoyes Introduction Safety 10 An efficient ground connection is imperative for the physical protection of the user Power supply cord reference 7080316106 is for use in France and Germany Power supply cord reference 7080316105 is for use in the USA and Canada For other countries contact your local Gilson representative You must only use the type of fuse described and specified in this document 2 Amp type T slow b
5. Temperature target rack A C 4 40 3 01 Min temperature rack A C 0 50 8 02 Max temperature rack A C 0 50 3 03 Temperature target rack B C 4 40 04 Min temperature rack B C 0 50 S 05 Max temperature rack B C 0 50 2 06 Proportional coeff heating 0 XXXX fo 07 Proportional coeff cooling 0 XXXX o 08 Integral coeff heating 0 XXXX 09 Integral coeff cooling 0 XXXX o 10 Differential coeff heating 0 XXXX 11 Differential coeff cooling 0 XXXX D Comment The command Pnn sets the parameter pointer to the O specified parameter where nn identifies the code Q assigned to the parameter If the value is omitted or out of range the command is ignored Command S Function Start Stop regulating Syntax SnX Where n 0 for stop n 1 for start X A for rack A X B for rack B Command U Function Unlock keypad Syntax U Comment This command unlocks the keypad The lower line of the display is restored Command Ww Function Write display Syntax Wn xx xx Where n line number 0 for the upper line 1 for the lower line xx xx is an alphanumeric string up to 24 characters long non ASCII characters are not allolwed i e codes above 127 Extra characters may cause an unpredictable result If less than 24 string is padded with trailing spaces Comment When this command is sent the designated line is dis connected from the internal software
6. a thermoelectric device consisting of an assembly of semiconductor elements between two heat conducting plates When an electric current is passed in one direction through such a device the plate on one side is heated and the plate on the opposite side is cooled It is sufficient to reverse the direction of current flow to change from heating to cooling and vice versa The thermostating cuvette for use with the 832 Temperature Regulator incorporates Peltier Effect Cells One side of each cell exchanges heat energy with the air and the other side is used to heat or cool the thermostating cu vette according to the direction of current flow The current flow is care fully managed by the electronics of the 832 Temperature Regulator under software control You control the software using the built in keypad There are many potential applications for example Cooling samples that are not stable at room temperature Heating samples when derivatizing or during enzymatic and other types of reaction Description Front Panel The front panel includes a 48 character 2 lines of 24 characters Liquid Crystal Display LCD screen located above a keypad The keypad includes five soft touch keys which are defined by the soft ware two arrow keys for changing values and settings plus a HELP key jaueg U014 15 Description 2 A Thermostating Cuvette gt Each 832 Temperature Regulator is used O to control the
7. either the maximum or minimum alarm temperatures the following flashing message is Ta Tb out of range displayed at the 832 Temperature Regulator The beeper sounds if selected Stop by pressing any key The controlling device is alerted if external Power Supply Mains Failed If the power fails while operating an 832 Temperature Regulator the beeper sounds if selected and the following message is displayed on Power Failed the keyboard unit when the power is restored Press any key to acknowledge and remove this message Safety Files with Gilson Equipment When an alarm situation occurs the controlling device is alerted by contact closure signals or GSIOC In either case you may program a safety file to respond in the appropriate manner for example to stop pumps Maintenance and Troubleshooting 5 This chapter contains maintenance and troubleshooting procedures 45 Maintenance and Troubleshooting Maintenance 46 Maintenance The 832 Temperature Regulator is designed to require a minimum level of maintenance In practice maintenance is limited to keeping the units clean Maintenance and Troubleshooting 5 Troubleshooting Warning Messages The warning messages are displayed alternatively with the current display If the alarm is on the beeper sounds Bunooys jqnoIL The key warning messages are After a power fail
8. left hand side of the connector and pin 8 at the right 92 U09 3ndjno pue jo1jU0D Wa SAS Table Output Contacts for 832 Temperature Regulator Function Type Pin Comment Ready A Output 1 1 and 2 Temperature stable Alarm A Output 2 3 and 4 Temperature out of limits ReadyB Output 3 5 and 6 Temperature stable Alarm B Output 4 7 and 8 Temperature out of limits The Ready temperature stable outputs can be used under software control to enable a controlling system to start The Alarm temperature out of limit outputs which switch off the temperature regulation can be possibly used to activate a safety file in a pump 25 Installation System Control and Output Contacts 26 Keypad Gilson 720 Software System Examples The first diagram shows an example of a basic system the 832 Temperature Regulator is set up and controlled using its integral keypad Gilson s 720 Keypad Software is used to control the XL Sampler which is programmed to wait for contact closure signals before starting Contact Signals XL Sampler Thermostating cuvette If 720 V2 00 or higher is used the 832 can be connected to the XL Sampler through GSIOC The WAIT task can be programmed to wait until the 832 has stabilized before running the 720 application The second diagram shows a similar system where the XL sampler is control led by a computer using Gilson s 735 Software You should
9. of samples contained in one or two racks Each rack must be placed in a Gilson Peltier Effect Thermostating cuvette The 832 Temperature Regulator can be operated manually or under the control of a master device system controller 33 Setting Up and Operating Switching On 34 Switching On Press the toggle switch mounted on the rear panel of the 832 Temperature Regulator to turn it on I on O off MODEL 832 VX XX The following display indicating the currently installed software version appears for three seconds Operation Using the Keypad Soft Keys There are five white soft keys situated below the 48 character display unit two lines each of 24 characters The bottom line of the display unit is used to indicate the soft key options Pressing one of the white soft keys selects the option displayed directly above that key The soft keys perform different functions according to the screen being displayed Refer to Setting Up Arrow Keys This pair of keys perform the following functions Up Arrow increases a numeric value by one unit or switches between options Down Arrow decreases a numeric value by one unit or switches between options HELP Key This key provides you with on line help messages when in the ready to run mode or in the set up mode To access this facility press the HELP key pedAay ou Buisn The value steps one unit each time the
10. temperature of one or two 2 Gilson thermostating cuvettes each of which is equipped with an aluminum ry rack codes 30 31 32 33 34 37 and 38 E Each cuvette is controlled independently oO When thermostating cuvettes are used 16 to cool samples below the ambient temperature condensation forms on the surface of the rack and falls into the rack wells This water can accumulate in the wells forcing the vials to rise and subsequently damaging the needle Cover Rack Cuvette Description To prevent this from happening you must fit perforated covers to the racks that are being thermostated With reference to the figure the stain less steel rack covers which clip onto the aluminum racks are available as additional accessories for rack codes 30 31 33 34 37 and 38 Table Suitable Vials Instrument Rack Vials epoan9 Hunezsow yL Suitable Vial Types System Al Rack Dimensions All 30 4x15 60 2miglass or plastic 12 x 32 mm All 31 6x18 108 0 7 ml mini vial 7 x 40 mm All 32 4x15 60 6miglass 13 x 75 mm All except for 32 4x15 60 9mlglass 13 x 100 mm ASPEC XL All 33 2x7 14 20 ml glass or plastic scintillation 28 x 60 mm All 34 3x12 36 4ml vial 15 x45 mm 234 37 56 1 2 ml glass or plastic 12 x 32 mm one 20 ml scintillation 28 x 60 mm 234 38 96 1 0 7 ml mini vial 7 x 40 mm one 20 ml scintillation 28 x 60 mm 17 Descripti
11. to the 832 2 Wait 3 seconds for the ready to run screen to appear 3 Select the rack to regulate press R_A or R_B 4 Select the temperature units to display press t 5 Use the up and down arrow keys to change the temperature 6 Set the alarm temperatures and options To access the set up menu press Menu 7 Repeat for the second rack if control led by this regulator Manual Sart Up To operate an 832 Temperature Regu lator as a stand alone unit assuming that the set up parameters are defined you should 1 Switch on the power to the 832 2 Set the target temperature 3 Press the Go key Heating or Cooling is displayed or Rack A B Absent if not connected 4 Wait until the target temperature stabilizes Ready is displayed 6unesado 41 Setting Up and Operating 4 Operating 42 Wait Time minutes You must wait as a minimum 10 minutes for conditions to stabilize In some cases it can take up to 60 min utes for the ready state to be reached depending on the conditions The graph obtained empirically shows the time required for the target tem perature to be reached from an ambient temperature T mp of 25 C For exam ple the time required to attain a stable 13 C when the ambient temperature is 25 C is about 30 minutes Similar curves can be plotted for other ambient temperatures Please note that the overall time taken to ach
12. values 1 Some dashes appear under the alarm temperature which can be set with the up and down arrow keys Press Max to access the maximum value tmax the flashing cursor shows under YYY Min then shows above the soft touch key Use the up and down arrow keys to adjust the alarm temperature value Press Min to access the minimum value tmin yyy Max then shows above the soft touch key Use the up and down arrow keys to adjust the alarm temperature value The alarm temperatures may be set at any value between 2 C and 42 C If the target temperature changes tmin is reset by default to target minus 2 C and tmax is reset by default to target plus 2 C Options Set Up Screen Starting from the alarm set up screen press the Next soft key to access the first of the option set up screens You can access all of the screens shown in the set up which shows how to get from one screen to another arrows show the viable routes You move from one screen to another by pressing selected soft keys which are fully described above After entering the option set up menu Next and Prev are used to move from one screen to the next You can change any all or none of the screens Setting Up and Operating 4 A flashing cursor appears beneath the parameters that may be changed Press Quit to leave the set up menu at any point in the procedure dn buipas Options These screens relate to the 832 itself Use either of the arro
13. 832 Temperature Regulator User s Guide SOLUTIONS AT WORK FOR YOU Table of Contents Introduction Overview Unpacking Warranty Customer Service Description Operating Principle Front Panel Thermostating Cuvette Reark Panel installation Thermostating Cuvette Temperature Regulator System Control and Output Contacts Control by GSIOC Setting Up and Operating Switching On Using the Keypad Operating Alarm Conditions Maintenance and Troubleshooting Maintenance Troubleshooting LT801224D 2001 Gilson SAS All rights reserved October 2001 6 Appendices Microcomputer Control GSIOC Part Numbers and Accessories Technical Data Introduction 1 The 832 Temperature Regulator has many potential applications cooling samples that are not stable at room temperature heating samples when derivatizing or during enzymatic and other types of reaction The 832 may be fitted with one or two Peltier Effect thermostating cuvettes which include a cable for connecting to the regulator s electronics This type of thermostating cuvette has many applications using Gilson manufactured and other equipment Although it was designed for use with XL Sampling Injectors Liquid Handlers ASPEC you can use it with earlier versions of Gilson s equipment Only one thermostating cuvette can be used with the small models 221 231 and 234 With the larger models two or three thermostating cuvettes may be used but they sho
14. Control GSIOC 54 Where Comment n is the line number xx xx is a 24 character alphanumeric string The reading mechanism is the same as immediate W The response is the image of the related display line as it would be if not connected to the GSIOC bus This is also the line restored to the display after a reconnect line command Buffered Commands J Command Function Response format Where Write contact outputs Jabe a is the ready output b is the alarm output c A for rack A c B for rack B Parameters C to close D to open X to leave unchanged to reconnect to internal software Command K Key Code Function Simulates front panel keystrokes Syntax Kxx x F1 a up to 32 ASCII codes per command F2 b xx xx is a 24 character alphanumeric string F3 Parameters ASCII codes as follows E a M f J A HELP H Command L Function Lock keypad Syntax TL Comment This commands locks the keypad Keypad locked is shown on the lower line of the display Command P Function Assigns a value to a parameter Syntax Pnn mmm Where nn is the parameter code see table mmm is the value assigned to the parameter The following table identifies the code nn assigned to each of the parameters It is also lists the range of values mmm that can be entered Appendices 6 Code Value mmm nn Parameter Min Max S 00
15. arters Gilson Inc 3000 W Beltline Hwy PO Box 620027 Middleton WI 53562 0027 USA Telephone 1 800 445 7661 or 1 608 836 1551 Fax 1 608 831 4451 Gilson SAS 19 avenue des Entrepreneurs B P 145 95400 Villiers le Bel France Telephone 33 1 34 29 50 00 Fax 33 1 34 29 50 20
16. both the bottom of the aluminum rack and the inside of the thermostating cuvette to ensure that there is no particulate debris between them before putting the rack into the cuvette Then you must correctly position the thermostating cuvette on the rack holder see the opposite figure Although open vials may be used the liquids to be thermostated must be contained in vials closed with septa in order to guarantee the temperature specifications which are valid for liquid contained in the lower part of the tube i e the part that is wholly contained within the aluminum rack The usable temperature range is linear from 4 to 40 C With closed vials the temperature is accurate to 1 5 C Installation stability 0 5 C between filled vials placed anywhere in a rack Improved accuracy can be expected 1 0 C if you wet the contact between the bottom of the rack and the thermostated surface of the cuvette This is done by putting a few drops of water into the cuvette before installing the rack When you use septa you need to fit a septum piercing needle to the arm of your sampling injector Suitable vials for use with Gilson sampling injectors are listed in the table page 17 epean9 bune sowsayj 21 Installation Temperature Regulator 22 Temperature Regulator The 832 Temperature Regulator may be used with or without a Gilson Work center In either case remember that you are limited by the lengt
17. ct outputs abAabB abA is channel A abB is channel B C if closed and connected from software c if closed and disconnected from software D if open and connected to software d if open and disconnect from software Command Function Response format Where For each output J Read contact output buffers abAabB abA is channel A abB is channel B C if closed and connected to software c if closed and sisconnected from software D if open and connected to software d if open and disconnected from software j immediate 832 a D J immediate J buffered Contact Command Function Response format Where K Read key entry bo ne xx x is an ASCII string 1 to 7 characters long encoding the keys pressed see table with K buffered page 54 Comments If no key is pressed or if the keyboard has not been disconnected by a buffered L command the character is returned lock A A K immediate 7 char Keypad internal K buffered process gt 32 char unlock Command P Function Read value of parameter Response format nn mmm Where xx x is an ASCII nn identifies the parameter see table with P buffered page 55 mmm is its value Appendices 6 Comments Use the Pnn command to first indicate the parameter to be
18. dices Command Type eon l l B l l B l B B l B l l B B l l a a E S a e a a a a Function Perform master reset Request module identification Request status Write contact outputs Read contact outputs Read contact output buffer Simulates front panel keystrokes Read key entry Lock keypad display Assign a value to a parameter Read parameter value Start stop temperature control Read temperature value s Read temperature probe signal Unlock keypad display Write to keypad display Read keypad display Read display buffer 0 C Immediate Commands Command Function Response format Where Request module identification 832Va bc Va bc identifies the software version Command Function Response format Where 2 Request status abcdeabcde a is the start stop status R for running S for stop b is the regulation status R for ready H for heating C for cooling if not running c is the control status U for unlocked L for locked d is the temperature alarm N for no alarm T for alarm e is the rack concerned A for rack A B for rack B if rack absent Command Function Response format Perform master reset is echoed 51 Appendices Microcomputer Control GSIOC 52 Command Function Response format Where For each output J Read conta
19. ed off automatically Check that the air inlets to the rear and bottom of the cuvettes are not obstructed and that the fan mounted on the rear panel of the regulator is operating before calling the service agency Possible Cause Solution Power cord unplugged Check for power or fuse blown See Section 3 2 or temp out of safety limits Check service agency Rack does not regulate Cord not connected Plug in cord Appendices 6 This chapter contains GSIOC description part numbers and technical data specifications 49 Appendices Microcomputer Control GSIOC 50 Microcomputer Control GSIOC Introduction to GSIOC There are two basic command types that the controller can sends to a slave device buffered commands B and immediate commands I Slave instru ments execute buffered commands as background processes Immediate commands have a higher priority the slave interrupts the execution of a buffered command to execute an immediate command Below is the list of available commands in alphabetical order This list can be used as quick reference guide All commands are detailed below with their function Immediate commands also have their response format described Comments are added where necessary Command Descriptions Below is the list of available commands in alphabetical order This list may be used as a quick reference guide A detailed description of each command is given after the table Appen
20. h of the con necting cable 1 5 m You must ensure that the temperature regulator is not placed in a position where the air flow around it or to any of the thermostating cuvettes is restricted The temperature setting is continuous from 4 C to 40 C with an increment of 1 C A vial filled rack at room temperature reaches its working temperature setting in less than one hour These performances are guaran teed with an ambient temperature between 18 C and 25 C For rack code 33 the target temperature is reached in just over an hour typically 75 minutes Connecting the Control Cable Each thermostating cuvette is fitted with a control lead which must be plugged into either of the 7 pin sockets at the rear of the 832 After this is done the system is ready for use as soon as the power is connected see below However as part of an analytical system you may also have to make other electrical connections GSIOC or contact to coordinate Installation with external equipment Take care when plugging the control leads into their sockets Firstly the large key way on the plug must be lined up with the corresponding key way on the socket then the plug must be pushed gently into the socket When correctly aligned the plug clicks into place where it is held by a retain ing ring To disconnect you must first pull back on the retaining ring before you can pull the plug from its socket Electrical Power Connect
21. he thermostating cuvette is above the target value 4 Status Line Tells you the status of the selected thermostating cuvette 5 Soft Key Labels Tell you the function of the soft touch keys for this screen see below 6 Go Stop Key Press Go to start controlling the temperature of the thermostating cuvette Press Stop to stop controlling the temperature of the thermostating cuvette the power is cut of to the selected rack 7 Rack Change Key To display the status line relating to the second rack under the control of the same 832 8 Menu Key Push this key to display the alarm set up screen and change to the set up mode enabling you to change other parameters and options 9 Change Push this key one or more times to change the displayed Temperature Units temperature units F Fahrenheit C Celsius K Kelvin Setting Up and Operating 4 1 If either A or B is not connected the information about the temperatures is not displayed instead after pressing Go the message Rack A B absent appears alternately on the status line dn bumas Some dashes appear under the target temperature which can be set with the up and down arrow keys 3 When Go is pressed Stop appears and the status is updated When Stop is pressed Go appears Alarm Screen Starting from the ready to run screen press the Menu MODEL 832 VX XX soft key to access the alarm set up screen You can
22. ieve a stable target temperature depends on the difference between the ambient and target temperatures Tamb 25 C 10 20 30 40 50 Target Temperature C Setting Up and Operating However because the thermostating process is not linear with time you may observe that while the temperature is being regulated the early changes in temperature take place more rapidly than those towards the end of the process In fact the temperature may appear to have been reached for some minutes before the ready signal is given Manual Shut down 1 Press the Stop key Cooling or heating is displayed power to the racks is cut off 2 Switch of the power to the 832 Temperature Regulator External Control As part of a larger system the 832 Temperature Regulator can be control led externally by a master device You may emulate the keypad start and stop regulating the temperature using GSIOC commands If the 832 Temperature Regulator is under control of a compu ter the screen displays Keyboard locked on the lower line To operate the 832 Temperature Regulator again as a stand alone unit the regulator s keypad must first be unlocked at the control ling device using the Unlock command see GSIOC Commands 6unesado 43 Setting Up and Operating 4 Alarm Conditions 44 Alarm Conditions Temperature Out of Range If the measured temperature of either of the thermostating cuvettes reaches
23. ions The 832 Temperature Regulator is designed to operate where mains power supply voltage is between 90 Vac and 240 Vac 50 to 60 Hz You have only to insert the fuses supplied with your instrument and then connect the power cord Remove the power cord if you have any reason to change the fuses Inserting or Changing the Fuses For safety reasons concerning the internal construction the power block is installed up side down So the fuse holder is situated below the power cord socket The fuses are contained behind a small door see figure opposite Joye nBay ainyesodwey ON OFF switch 23 Installation Temperature Regulator 24 To change the fuses 1 Carefully pry open the door by inserting a small screwdriver into the access slot at the top of the door 2 Swing the door upwards 3 Pry out the old fuses and insert the new ones 4 Close the door by pushing it firmly inwards until it snaps shut Installation System Control and Output Contacts Introduction The 832 Temperature Regulator has four output contact relays which are electri cally isolated from one another and from ground The output contacts are used to coordinate with other equipment Connections are made to the 8 pin connector on the rear panel of the temperature regulator A barrier strip connector is provided for this purpose as part of the standard accessory package With reference to the table below pin 1 is at the
24. key is pressed but you can make the values change continuously by continuing to press the key A message is displayed on the first line of the display Top line is status line Next Quit unit Press Next one or more times to view the Ready 10 to 60 minutes rest of the message Next Quit Pressing Quit returns you to the normal modes of display 35 Setting Up and Operating 4 Setting Up 36 Setting Up Switch on the 832 and this MODEL CEE Use screen displays for 3 seconds then the next 1 2 3 4 appears TA xaaa U Ready J A description of each 1 pe RB__60 item is given in the 8 7 6 5 following table 9 1 Rack Indicator This indicates the thermostating cuvette rack to which the temperatures relate A or B 2 Temperature Indicators xxx represents the actual temperature of the thermostating cuvette aaa represents the target temperature for thermostating cuvette A bbb represents the target temperature for thermostating cuvette B U indicates the temperature units see below 9 3 Status Indicator Ready indicates the temperature of the thermostating cuvette is stable at the target value Heating indicates that the temperature of the thermostating cuvette is below the target value Cooling indicates that the temperature of t
25. low which is for use with power supplies between 100V and 240V Adequate protection including clothing and ventilation must be provided if dangerous liquids are used in the analytical work If accidental spillage occurs carefully clean up the spillage taking into account the nature of the spilled liquid and all of the required safety precautions Cleaning installation dismantling maintenance adjustment and repair should only be performed by person nel trained in such work and who are aware of the possible dangers involved This instrument must not be sterilized using an autoclave or any mechanical device When you need to clean the instrument use one of the following methods Introduction 1 1 A clean dry cloth 2 A cloth dampened with water 3 A cloth dampened with soapy water Kyayes If a cloth dampened with soapy water is used to clean the instrument only domestic soap may be used no other form of detergent or chemical may be used The following symbols appear on the instrument Symbol Explanation Alternating current PROTECTIVE CONDUCTOR TERMINAL On Supply switch Off Supply switch Caution risk of electric shock PP o Caution refer to User s Guide 11 Introduction 12 Description This chapter describes the 832 Temperature Regulator and the thermostating cuvette 13 Description Operating Principle 14 Operating Principle A Peltier Effect Cell is
26. n Serial Input Output Chan nel GSIOC is a bi directional bus that connects the system controller com puter pump etc with as many as ten slave devices with RS422A specifica tions or thirty two slave devices with RS485 specifications GSIOC is a communications channel for linking Gilson modules and as is often the case a computer via a Gilson interface 9OISD Aq jo13u05 Each device connected to the computer via GSIOC has its own identification number 0 63 which may be set using that device s hardware or software As part of a complete system see example the GSIOC unit is selected by the soft ware via the user interface The identification number of an 832 Temperature Regulator is set at the factory to 46 however it may be changed using the regulator s internal software For direct control from a computer Gilson has developed hardware and software interfaces for IBM personal computers The system controller sends commands to the various devices within the system A set of GSIOC commands specific to the 832 Temperature Regu lator is given in Chapter 6 29 Installation 3 The GSIOC connector is a 9 pin male O SUB D socket situated on the rear panel m of the 832 Temperature Regulator This 3 input which is an EMC protected serial 2 channel uses the GSIOC communica 2 tions protocol electric standard RS485 5 oO m1 reserved 30 a6 reserved The pin out is as a 2 data from slave follows
27. nit C F or K Chapter 3 User Interface 2 x 24 character LCD display soft touch keypad Built in help messages Safety Features Permanent display of temperature Temperature out of limit contact outputs Electrical Interfaces Control cable length 1 5 m Gilson Serial Input Output Channel GSIOC ID 46 Power Requirements 90 240 Vac 50 60 Hz 250 VA Line Frequency 47 to 63 Hz Humidity Up to 80 Altitude Up to 2000 m Pollution Pollution degree 2 Installation Category II 57 e eq jed1uYydeL Appendices Technical Data 58 Conformity to Norms From serial 168001 Electrical equipment for measurement control and laboratory use EMC requirements Gilson s 832 Temperature Regulator conforms to EEC Directive 89 336 EEC for electromagnetic compatibility Standard EN 50081 1 1992 for emission Standard EN 50082 1 1998 for immunity Gilson s 832 Temperature Regulator conforms to EEC Directive 73 23 EEC for safety Standards EN 61010 1 1993 including AMD A2 1995 UL 3101 1 1993 and CAN CSA 1010 1 1992 including MOD2 1997 Each 832 is subjected to a Dielectric Test 1500 V between live neutral and earth and an Earth Bonding Impedance Test lt 0 1 Q Thermostating Cuvettes Type Peltier Effect Cell Size and Weight 24 x 8 x 14 5 cm 3 kilograms World Wide Web www gilson com E mail sales gilson com service gilson com training gilson com World Headqu
28. on Rear Panel 18 Rear Panel The rear view shows the following electrical items and a vent for the fan used to cool the electronic components which are contained within the 832 power receptacle and fuse holder ON OFF switch two 7 pin cuvette connection sockets a 9 pin GSIOC socket an 8 pin connector for relay outputs Cuvette Connection wa Be Relay Output Connector GSIOC Socket Air Vent ON OFF Switch Power Receptacle Fuse Holder The 832 also contains the following key items not accessible to the user power supply board logic board keypad control board cooling fan When operating the instrument you must ensure that the fan works and that the ventilation slots are not obstructed in any way Installation 3 This chapter tells you how to install an 832 Temperature Regula tor and thermostating cuvette 19 Installation Thermostating Cuvette 20 Thermostating Cuvette There are two types of rack holder available For Gilson s larger models 232 XL for example a rack holder is available as reference 2704473 For the small models 231 XL for example a rack holder is available as reference 2704471M When a code 32 rack is used the thermostating cuvette can also be placed on the polypropylene tray of the large and the small models Carefully install each aluminum rack in its thermostating cuvette A good contact between rack and cuvette is essential Clean
29. or pos sible damage and check the contents of each carton against the list of parts and accessories given in Chapter 6 Report any loss or damage immediately Introduction Warranty If the Temperature Regulator does not appear to function cor rectly first verify the electrical connections are correct and that the instrument is switched on Contact your Gilson distributor for technical advice or possibly a service visit Any service required will be given within the warranty conditions assured by your Gilson distributor AMuesieM Customer Service Introduction Customer Service Gilson and its worldwide network of authorized distributors provide custom ers with four types of assistance sales technical applications and service Customer Service personnel are able to serve you more efficiently if you provide the following information 1 The serial number of the equipment involved 2 Type of computer if used available memory microprocessor and soft ware version s in operation 3 The installation procedure you used 4 A concise list of the symptoms 5 A list of operating procedures and conditions you were using when the problem arose 6 A list of other devices connected to the system and a system diagram showing the conditions 7 A list of other electrical connections in the room Introduction Safety Read this Section carefully before installing and operating the equipment
30. refer to the relevant Gilson User s Guides for connection and programming details Installation 3 XL Sampler Master Computer PC Gilson 735 Software Thermostating cuvette Output Contact Relay Functionality 92 U09 3ndjno pue jo1 U0D W3 SAS The figure shows one of the four output contact relays in different conditions The other output contact relays operate in exactly the same way but relate to different functions see the table on page 25 Each of the output contact relays has two terminals that are factory set to normally open no Relay Relay Not Energized Software closes relay Not Energized b Energized 10 Ready A 2 a and b factory default setting normally open 27 Installation 3 Relay Relay d 1 2 1 c and d optional setting normally closed System Control and Output contacts When the internal software of the 832 Temperature Regulator or external GSIOC command causes the relay to be energized the status of the contact is changed from open a to closed b This status is maintained as long as the relay remains energized The default setting of these contacts can be changed by your Gilson agent to normally closed nc if required This is done by changing the position of the internal links In this case the status of the contact is changed from closed c to open d 28 Installation 3 Control by GSIOC Introduction The Gilso
31. reviewed Command T Function Read rack temperature value Response format nnnXnnnX Where nnn is the temperature value in C X A for rack A X B for rack B QOISD 04 U09 19 NAdWIOI0 19I N Command t Function Read temperature probe signal Response format nnnnXnnnnX Where nnnn is the value of the temperature probe converter up to 255 X A for rack A X B for rack B Command WwW Function Read display Response format Wn xx xx Where Comment n is the line number xx xx is a 24 character alphanumeric string The first line to be returned is the last entered by the buffered W command If the write commands has not been used the upper line of the display is read at the first occurence of the read command W or Wo Display 0 io 832 Software Wo Wo or W Wjor W ua Display 1 W buffered Wa W45 or W Wo or Wo Wo W immediate Wi w immediate W4 or W4 w disconnect both lines w reconnect both lines w disconnect line 1 w disconnect line 2 w reconnect line 1 w reconnect line 2 WE xx x disconnect and write xx x lt spaces gt on line 1 w xx x disconnect and write xx x lt spaces gt on line 2 Care w nothing erase line 1 w nothing erase line 2 53 Appendices 6 Command w Function Read display buffers Response format Wn xx xx Microcomputer
32. uld not be placed side by side in adjacent rack positions Overview Introduction Overview User s Guide Description The 832 Temperature Regulator User s Guide describes Gilson s system for controlling thermostating cuvettes Chapter 1 contains an introduction to the 832 Temperature Regulator Chapter 2 describes the 832 Tem perature Regulator and the thermostating cuvette Chapter 3 tells you how to install an 832 Temperature Regulator and thermostating cuvette Chapter 4 describes the screens used to set up and control an 832 Temperature Regulator Chapter 5 contains maintenance and troubleshooting procedures Chapter 6 is an appendix containing GSIOC description part numbers information and technical data Introduction Hardware Description The 832 Temperature Regulator is an electronic device capable of control ling the temperature of two racks thermostating using the Peltier effect Any one of a variety of racks may be placed in each thermostating cuvette Hence the temperature of vials con tained within the rack is controlled with precision M91A18A0 Introduction Unpacking Unpacking Inspection of the 832 Temperature Regulator should be done immediately even if the unit is not to be used until later The key components are as follows 832 Temperature Regulator power cord spare fuses Upon receipt of your instrument un pack the unit carefully inspect it f
33. ure occurs the message Power failed appears whether auto restart is ON or OFF until you press a key When the measured temperature is out of range tmax tmin and the 832 Temperature Regulator is ready or fails to achieve the target temperature after more than one hour the message TA or TB out of range appears The Keypad locked message appears when the 832 Temperature Regulator is under external control via GSIOC You can stop the beeper of the alarm by pressing any key on the front panel Error Messages If a rack is not connected a flashing message Rack A B absent appears on the first line of the main menu This message appears only if you press the Go soft key When an error occurs a flashing message is displayed describ ing the error 47 Maintenance and Troubleshooting 5 Troubleshooting 48 The possible errors are Problem Message EPROM checksum error EPROM checksum error RAM error RAM error PELTIER failure Peltier A B failed No information from probe Probe A B failed Problem Does not operate Electrical Problems If the ready to run display does not appear within a few seconds of switch ing on the 832 Temperature Regulator check that the mains supply is switched on and then check for the following possible causes If the measured temperature is outside pre set limits the power supply to the unit is switch
34. w keys to toggle between Yes and No For the beeper if No is Beeper Yes selected the beeper does Next Prev Quit not sound when an alarm condition occurs Alarm cut power ve Next Prev Quit For auto restart if No is selected the auto restart function after a power Auto restart ie 7 af failure is suppressed si EROI For GSIOC use either of the arrow keys to change the Unit ID identifica tion number You may GSIOC Unit ID d0 enter a value between 0 DEE ee and 63 Normally this number is left at the default value of 46 Press arrow keys to change values The value of the GSIOC baud rate is factory set to external but may be changed by your supplier to 300 600 1200 2400 4800 9600 or 19200 39 Setting Up and Operating 4 Setting Up 40 Model 832 VX XX TA xxx aaa C Ready to Menu R_B TB xxx bbb C Ready ta Menu R_A Go Go Li Max Next AlarmA yyy aaalYYY C Prev Quit AlarmB zzz bbb ZZZ C Max Next Prev Quit Beeper No Next Prev Quit Alarm cuts power Yes Next Prev Quit Auto restart Yes Next Prev Quit 46 GSIOC Unit ID Next Prev Quit Setting Up and Operating Operating Setting the Target Temperatures 1 Switch on the power
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