VK 750D Heater / Circulator Operator`s Manual
Contents
1. C and a precision of 0 1 C The operating parameter values can be set and monitored either from the front panel of the instrument or with the keypad of your VK 7000 7010 Dissolution Apparatus An interface cable interconnects the units enabling them to communicate with each other The temperature is shown on a large easy to read digital display and the instrument status is continuously indicated on individual LEDs For the highest accuracy the VK 750D can be used with an optional plug in remote temperature probe for direct monitoring of the water bath temperature This probe is supplied with all VK 7000 7010 Dissolution Testing Stations as a standard accessory As an alternative the temperature probe inside the internal tank is used for temperature control For easy automation all functions can be controlled and monitored via RS232 with both DB 9 and RJ 11 connectors provided on the rear panel Varian Inc Page 14 VK 750D Heater Circulator Revision H 11 10 Introduction Operator s Manual P N 70 9005 Warning The equipment contains electrical circuits devices and components operating at dangerous voltages Contact with these circuits devices and components can cause death serious injury or painful electric shock The optional Report Center Printer gives you a printout of the system status at user selectable time intervals for easy documentation of operations This feature is designed to help you comply w2. NOTICE This document contains references to Varian Please note that Varian Inc is now part of Agilent Technologies For more information go to www agilent com chem Big Agilent Technologies VK 750D Heater Circulator Operator s Manual P N 70 9005 November 2010 Revision H Limitation of Liability The information in this document is subject to change without notice Varian Inc makes no warranty of any kind with regard to this material including but not limited to the implied warranties or merchantability and fitness for a particular purpose Varian Inc shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing performance or use of this material All rights are reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under copyright laws First Edition November 2010 VK 750D Heater Circulator Operator s Manual Part Number 70 9005 Revision H Printed in the United States of America The following terms are trademarks of Varian Inc e Benchsaver Practical Solutions BIO DIS III QA and QAII Enhancer Cell e TruCenter Full Flow Filters e VanKel e Peak Vessel e VK All other trademarks are the property of their respective owners Varian Inc 13000 Weston Parkway Cary North Carolina 27513 2250 800 229 1108 919 677 1108 Fax 919
3. P N 70 9005 Operation Operator s Manual Over Temp The Over Temp LED illuminates to indicate that the heater has exceeded its 55 C maximum temperature This rare event may occur if the water level drops suddenly or if a temperature sensor malfunctions Shut down power to the instrument and troubleshoot the system If the source of the problem cannot be located contact the Dissolution Systems Service Department or your local Varian representative for assistance Optional Report Center Printer FIGURE 6 Report Center Printer Note S gt Use the hidden key function CLEAR gt 1 to enable the Report Center Printer prior to programming it for use The VK 750D Heater Circulator is available with an optional Report Center Printer for use as a Standalone machine It provides hard copy documentation of the unit s activity printing the elapsed time time of day and the actual temperature at user selectable time intervals Note The PRINT key toggles on and off the Report Center Printer Its status is indicated by the Printer On LED on the front panel Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 33 P N 70 9005 Operator s Manual Operation Setting Date and Time If applicable complete the following steps to set the correct date and time Step 1 Press SET CLOCK The current date flashes in mm dd yy format Step 2 Press ENTER to accept the valu
4. 3 Delayed Bath Heating Step 4 Enter the desired water bath temperature and press ENTER Step 5 Enter the desired start time in 24 hour format and press ENTER Step 6 Enter the desired start date in the appropriate format and press ENTER The system status screen displays Varian Inc Page 30 Operation VK 750D Heater Circulator Revision H 11 10 Operator s Manual P N 70 9005 Operation Under Apparatus 3 Apparatus 7 Control Set Water Bath Temperature Step 1 Step 2 Step 3 Step 4 From the Ready screen press MENU The Main Menu displays Select option 3 Bath Temperature The Bath Temperature Control Report screen displays Select option 1 Set Bath Temp Enter the desired water bath temperature in xx x format and press ENTER The Main Menu displays If the actual temperature is lower than the set temperature the Heater On LED illuminates indicating the heating element is on Set Time Delay Start Step 1 Step 2 Step 3 Step 4 Step 5 From the Ready screen press MENU The Main Menu displays Select option 3 Bath Temperature The Bath Temperature Control Report screen displays Select option 2 Delay Heating Enter the desired start time in 24 hour format and press ENTER Enter the desired start date in the appropriate format and press ENTER The top line of the display continues to flash until the function is cancelled or until the set date and time are reached T
5. 38 VK 750D Heater Circulator Revision H 11 10 Maintenance Operator s Manual P N 70 9005 Monthly e Clean and dry all surfaces e Apply an algaecide bactericide or any other additive that will not corrode plastic or stainless steel to the water bath or system e If the water is high in calcium a 10 solution of white vinegar and water can be used to remove deposits Do not use this solution more than once a month e Flush external tubing and check clamps for corrosion e Clean the external temperature probe with alcohol to remove deposits Deposits can reduce the measurement accuracy e f a four pin communication cable is used inspect the cable for damage or corrosion Inspect the power entry module for corrosion and clean it if necessary Replace the fuse as necessary Fuse Replacement Caution Panels or covers that are retained by fasteners which require the use of a tool for removal may be opened only by Varian trained Varian qualified or Varian authorized service engineers The line fuse is located in a small cassette built into the rear panel AC power receptacle To remove the line fuse press the release tab down and slide the entire cassette out of the receptacle Snap the fuse out of the cassette replace the fuse and reinsert the cassette pushing until the release tab snaps back into place Warning Never replace a fuse with a higher rated fuse Use only a 10 amp fuse for 115 V power or onl
6. 677 1138 www varianinc com ap ms VARIAN Copyright c 1999 2010 by Varian Inc Table of Contents Chapter 1 Chapter 2 Chapter 3 Safety Practices and Hazards 7 Electrical Hazards 8 Other 8 General 10 WEEE Directive 11 Introduction 13 Conventions Used in this Manual 15 Installation and Setup 17 Unpacking Your VK 750D 17 Electrical Connections 19 Interfacing to the Dissolution Apparatus 20 Liquid Connections Single Apparatus Systems 21 Liquid Connections Dual Apparatus Systems 23 Hidden Key Functions 25 Varian Inc Table of Contents Chapter 4 Chapter 5 Chapter 6 Operation 27 Initial Power Up 27 Priming the System 28 Operation Under VK 7000 7010 Control 29 Set Water Bath Temperature 29 Set Time Delay Start 29 Operation Under Apparatus 3 Apparatus 7 Control 30 Set Water Bath Temperature 30 Set Time Delay Start 30 Operation Under Local Control 31 Over Temp 32 Optional Report Center Printer 32 Setting Date and Time 33 Setting Automatic Printout Interval 33 RS232 Command Set 34 RS232 Connections 35 Maintenance 37 Periodic Maintenance 37 Monthly 38 Fuse Replacement 38 Service and Warranty 39 Exclusions and Limitations 40 Obtaining Warranty Service 40 Warranty Limitations 40 Exclusive Remedies 41 Index 43 Tell Us How We Are Doing 45 Varian Inc List of Figures FIGURE 1 VK 750D Heater Circulator 14 FIGURE 2 VK 750D Rear Panel 19 FIGUR
7. also placed alongside warnings Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 9 P N 70 9005 Operator s Manual Safety Practices and Hazards These symbols are also used on warning labels attached to the instrument When you see one of these symbols you must refer to the relevant operation or service manual for the correct procedure referred to by that warning label The meaning of the symbols that appear alongside warnings in this manual are as follows Electrical shock Caution Refer to accompanying documents Read all warnings and cautions carefully and observe them at all times Caution A Caution message appears in the manual when failure to observe instructions could result in damage to equipment Varian supplied and or other associated equipment A Note appears in the manual to give advice or information Varian Inc Page 10 VK 750D Heater Circulator Revision H 11 10 Safety Practices and Hazards Operator s Manual P N 70 9005 Information symbols Switches main power on Switches main power off Indicates single phase alternating current Indicates the product complies with the requirements of one C or more European Union EU directives Indicates specific equipment meets consensus based eR standards of safety to provide assurance required by A BS OSHA that these products are safe for use in the workplace for North America Indicates that this produc
8. t over temp e ext sensor p printer on 1 0 Yes No Print Write 0135100000 Same Instantly Reset Write 0135000000 Same Varian Inc Page 35 Revision H 11 10 VK 750D Heater Circulator Operation P N 70 9005 Operator s Manual RS232 Connections Both a standard DB 9 subminiature connector and RJ 11 modular connectors are provided for digital communications with an external controller such as a PC The pertinent pin connections are detailed in Figure 7 DB 9 Connector for RS232 below FIGURE 7 DB 9 Connector for RS232 Pin 2 Receive Pin 3 Send Pin 5 Ground Control software which runs in Microsoft Windows is available from the Dissolution Systems Service Department Please contact the Dissolution Systems Service Department or your local Varian representative for more information Varian Inc Page 36 VK 750D Heater Circulator Revision H 11 10 Operation Operator s Manual P N 70 9005 This page was intentionally left blank except for this message Varian Inc Chapters Maintenance Periodic Maintenance Warning The instrument contains electrical circuits devices and components operating at dangerous voltages Contact with these circuits devices and components can cause death serious injury or painful electric shock Periodic maintenance intervals may vary depending on frequency of instrument usage Varian Inc Page
9. E 3 Single Water Bath Connections 21 FIGURE 4 Dual Water Bath Tubing Connections 23 FIGURE 5 VK 750D Keypad 31 FIGURE 6 Report Center Printer 32 FIGURE 7 DB 9 Connector for RS232 35 Varian Inc List of Figures This page was intentionally left blank except for this message Varian Inc chapter1 Safety Practices and Hazards The VK 750D has been carefully designed so that when used properly you have an accurate fast flexible and safe instrument If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired Operation of a VK 750D involves the use of aqueous liquids Unskilled improper or careless use of this instrument can create shock hazards fire hazards or other hazards which can cause death serious injury to personnel or severe damage to equipment and property Information on safety practices is provided with your instrument and operation manuals Before using your instrument or accessories you must thoroughly read these safety practices Observe all relevant safety practices at all times Varian Inc Page 8 VK 750D Heater Circulator Revision H 11 10 Safety Practices and Hazards Operator s Manual P N 70 9005 Electrical Hazards The heater circulator contains electrical circuits devices and components operating at dangerous voltages Contact with these circuits devices and components can cause death serio
10. U S market The cTUV mark signifies that this product has been tested to Canadian standards and certified for the Canadian market When the two marks are coupled the cTUVus mark signifies that this product has been tested to standards and certified for both markets WEEE Directive All Varian products that are subject to the WEEE directive shipped after August 13 2005 are compliant with the WEEE marking requirements Such products are marked with the crossed out wheelie bin WEEE symbol shown on page 10 in accordance with European Standard EN 50419 This symbol on the product or on its packaging indicates that this product must not be disposed of as unsorted municipal waste The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment For more information on collection reuse and recycling systems please contact your local regional waste administration your local distributor or Varian Inc Varian Inc Page 12 VK 750D Heater Circulator Revision H 11 10 Safety Practices and Hazards Operator s Manual P N 70 9005 This page was intentionally left blank except for this message Varian Inc chapter2 Introduction The VK 750D Heater Circulator has been designed for precise temperature control of your dissolution water bath with a range from ambient to 55
11. aratus If you are using your VK 750D Heater Circulator with a VK 7000 7010 Dissolution Apparatus or Apparatus 3 Apparatus 7 you can control the VK 750D with the dissolution apparatus keypad To interface the units complete the following steps Step 1 Locate the four pin cable in the VK 750D accessory kit Plug one end into the VK 750D rear panel jack labeled INPUT SIGNAL and the other end into the jack on the dissolution apparatus rear panel labeled HEATER CIRC Note When the VK 750D is interfaced to the VK 7000 7010 the heater circulator LED displays a series of dashes indicating it is under remote control and the keypad is locked Step 2 Step 3 Ensure the remote temperature probe supplied with the dissolution apparatus is plugged into the rear panel jack labeled BATH TEMP This enables the dissolution apparatus to monitor and display the water bath temperature while controlling the heater circulator Set the desired water bath temperature via the dissolution apparatus Main Menu option 3 Set Temperature on the VK 7000 7010 or Bath Temperature on the Apparatus 3 Apparatus 7 Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 21 P N 70 9005 Operator s Manual Installation and Setup Liquid Connections Single Apparatus Systems Use the following figure and the steps below to connect a single dissolution apparatus water bath to the VK 750D FIGURE 3 Singl
12. c Tell Us How We Are Doing We listen to our customers We work hard to make our technical documentation user friendly and to make the information in our manuals easy to retrieve and use We d like you to tell us the kinds of additional information you d find helpful in our documentation Your feedback will be carefully considered when we prepare future editions of this manual This manual should contain the following additional information The most useful thing about this book is This manual would be more helpful if My general impressions of this book are May we contact you regarding your comments YES NO If yes please write your name address and telephone number here Please return this form via mail to Technical Writing Dissolution Systems Varian Inc 13000 Weston Parkway Cary North Carolina 27513 2250 USA Optionally you can return this form via fax at 1 919 677 1550 Always feel free to telephone us to discuss your comments at 1 800 229 1108 VK 750D Heater Circulator Operator s Manual P N 70 9005 Revision H
13. e Water Bath Connections Flow Deflector Outlet Drain Valve f Step 1 Locate the two pieces of plastic tubing and the four stainless steel tubing clamps included in the VK 750D tubing kit Step 2 Slip one end of each piece of tubing over the barbed 90 degree angle adapters in the inlet and outlet bulkhead fittings of the water bath The inlet fitting is the higher of the two fittings It has a perforated deflector screen attached on the inside of the water bath see Figure 3 Single Water Bath Connections above Slide the tubing as far up on the adapter as possible Step 3 Slip a tubing clamp over the free end of each piece of plastic tubing and secure each clamp over the barbed angle adapters To avoid damage to the tubing do not overtighten Step 4 Slip the other pair of tubing clamps over the free ends of each piece of tubing and insert the tubing ends onto the inlet and outlet connectors on the rear of the VK 750D Ensure the tubing connected to the water bath inlet attaches to the VK 750D rear panel connector labeled OUTLET and Varian Inc Page 22 VK 750D Heater Circulator Revision H 11 10 Installation and Setup Operator s Manual P N 70 9005 the tubing connected to the water bath outlet attaches to the VK 750D rear panel connector labeled INLET Secure the clamps over the inlet and outlet connectors To avoid damage to the tubing do not ove
14. e displayed or enter the correct date and press ENTER The current time flashes Step 3 Press ENTER to accept the value displayed or enter the correct time in 24 hour format for example 0900 for 9 00 AM or 1330 for 1 30 PM and press ENTER Setting Automatic Printout Interval If applicable complete the following steps to set the automatic printout interval Step 1 Press SET PRINT The current setting flashes in minutes Step 2 Press ENTER to accept the displayed value or enter the new time interval up to 999 minutes and press ENTER Varian Inc Page 34 VK 750D Heater Circulator Revision H 11 10 Operation Operator s Manual P N 70 9005 RS232 Command Set The following RS232 codes are available for external communication and or control of your VK 750D Heater Circulator via the rear panel RS232 serial ports Function Mode Command Response Variables Time Read 0123000000 012300hhmm hh hours mm minutes Write 013300hhmm Same Date Read 0123100000 01231mmddy mm month dd day y year last digit Write 01331mmddy Same Set Bath Read 0122000000 01220ftttt tttt ttt t degrees Temp f 0 Celsius f 2 Fahrenheit Write 01320ftttt Same Actual Temp Read 0122200000 01 222ftttt tttt ttt t degrees f 0 Celsius f 2 Fahrenheit Print Read 0123200000 0123200mmm mmm 0 255 min Frequency Write 0133200mmm Same Status Read 0125000000 01250vitep v VK 7000 control low level
15. he water bath is adequately filled Step 2 Turn on the pump and tilt up the rear of the unit This helps the air inside the unit to flow out with its natural buoyancy You should see and hear the air being expelled through the outlet tubing Step 3 If more vigorous intervention is required hold the unit below the level of the benchtop if the tubing is long enough to allow you to do so while tilting up the rear Step 4 Should the unit fail to prime after these steps contact the Dissolution Systems Service Department or your local Varian representative for assistance Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 29 P N 70 9005 Operator s Manual Operation Operation Under VK 7000 7010 Control Set Water Bath Temperature Step 1 From the system status screen press MENU The Main Menu displays Step 2 Select option 3 Set Temperature The Select Temperature Set Mode screen displays Step 3 Select option 1 Set Bath Temp Step 4 Enter the desired water bath temperature and press ENTER The newly set temperature displays on the VK 7000 7010 status screen If the actual temperature is lower than the set temperature the Heater On LED illuminates indicating the heating element is on Set Time Delay Start Step 1 From the system status screen press MENU The Main Menu displays Step 2 Select option 3 Set Temperature The Select Temperature Set Mode screen displays Step 3 Select option
16. ial damages whether based on contract tort or any other legal theory Some states or provinces do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Varian Inc Page 42 VK 750D Heater Circulator Revision H 11 10 Service and Warranty Operator s Manual P N 70 9005 This page was intentionally left blank except for this message Varian Inc Index a apparatus 3 apparatus 7 control 30 c conventions 15 d db 9 connector for rs232 35 dual water bath tubing connections 23 e electrical connections 19 exclusions 40 exclusive remedies 41 h hazards 7 hidden key functions 25 i initial power up 27 installation 17 interfacing to the dissolution apparatus 20 introduction 13 l limitations 40 liquid connections 21 23 local control 31 m maintenance 37 monthly maintenance 38 o obtaining warranty service 40 operating parameter values 13 operation 27 over temp 32 Varian Inc Index p periodic maintenance 37 priming the system 28 r reader comment form 45 report center printer 32 rj 11 modular connectors 35 rs232 command set 34 rs232 connections 35 s safety practices 7 service 39 setup 17 single water bath connections 21 u unpacking 17 v vk 7000 7010 control 29 vk 750d keypad 31 vk 750d rear panel 19 w warranty 39 warranty limitations 40 Varian In
17. ith regulatory requirements FIGURE 1 VK 750D Heater Circulator Caution Panels or covers that are retained by fasteners which require the use of a tool for removal may be opened only by Varian trained Varian qualified or Varian authorized service engineers Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 15 P N 70 9005 Operator s Manual Introduction Conventions Used in this Manual e Items you are asked to press are in bold For example press 1 on the keypad e Key sequences you are asked to press appear like this CLEAR gt 7 Note Remember to return the warranty card Completing and returning the card ensures your right to protection under the terms and conditions of your warranty It also enables us to better assist you in the event of any problems Additionally it guarantees you will be informed of any issues arising concerning your equipment such as upgrades retrofits or regulatory changes Varian Inc Page 16 VK 750D Heater Circulator Revision H 11 10 Introduction Operator s Manual P N 70 9005 This page was intentionally left blank except for this message Varian Inc chapter3 Installation and Setup Unpacking Your VK 750D Complete the following steps to unpack your VK 750D Step 1 Carefully remove all items from the shipping carton Step 2 Check all items for damage during shipping If any damage to the instrument i
18. nd secure the tubing clamps over the drain on the bottom of each water bath To avoid damage to the tubing do not overtighten Double check all connections Fill the water baths with purified water to approximately one inch 2 5 cm above the inlet fitting The system is now ready for use Note Use ultrapure water when possible to minimize scale and mineral buildup Use algaecide to inhibit mold and bacteria growth Check I gt the label to ensure the formulation is compatible with the plastic materials used in the water bath construction The flow paths of the VK 750D are primarily stainless steel and should tolerate most clear water bath formulations Varian Inc Revision H 11 10 P N 70 9005 VK 750D Heater Circulator Page 25 Operator s Manual Installation and Setup Hidden Key Functions Key Sequence Function CLEAR gt 1 Use this key sequence to toggle on and off the Report Center Printer if installed CLEAR gt 4 Use this key sequence to toggle the position of the decimal on the temperature display from one tenth of a degree 0 1 C to one one hundredth of a degree 0 01 C NOTE This function does not require that you press ENTER to complete the task CLEAR gt 7 Use this key sequence to enter a different communication port identification number Enter the appropriate identification number and press ENTER CLEAR gt 8 Use this key sequence
19. o cancel the delayed heating function press ESC The Ready screen displays Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 31 P N 70 9005 Operator s Manual Operation Operation Under Local Control If you do not interface your VK 750D to a VK 7000 7010 Dissolution Apparatus or Apparatus 3 Apparatus 7 operational parameters are set via the VK 750D keypad as shown below FIGURE 5 VK 750D Keypad Complete the following steps to set the operational parameters using the VK 750D keypad Step 1 If you have a remote temperature probe plugged into the VK 750D rear panel check the Ext Sensor LED on the front panel If it is illuminated the unit is using the remote probe to monitor the actual water bath temperature If it is not illuminated the internal sensor is being used Press EXT INT to toggle between the internal and external sensors Step 2 Set the desired water bath temperature by pressing SET TEMP The current setting flashes Press ENTER to accept or key in the desired temperature in xx x format Press ENTER The Heater On LED illuminates if the set temperature is higher than the actual temperature and stays on until the water reaches the desired temperature It flashes intermittently as the heater approaches the set point The digital display shows the actual temperature of the circulating water on a continuous basis Varian Inc Revision H 11 10 Page 32 VK 750D Heater Circulator
20. oftware is not warranted to be uninterrupted or error free Obtaining Warranty Service To obtain warranty service in the United States contact the Dissolution Systems Service Department at 800 229 1108 to obtain authorization to return units for repair At the option of the customer onsite warranty service is available but travel charges may be incurred The customer should prepay all shipping charges for products returned to the Dissolution Systems Service Department unless otherwise authorized and Varian Inc will pay all charges for return to the customer Warranty Limitations Varian Inc makes no other warranty either express or implied with respect to this product Specifically disclaimed are any implied warranties of merchantability and fitness for a particular use In no event will Varian Inc be liable for any indirect incidental or consequential damages arising from the use of this product This warranty gives you specific legal rights which may vary from state to state or province to province so you may have other rights and some of these exclusions may not apply to you Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 41 P N 70 9005 Operator s Manual Service and Warranty Exclusive Remedies The remedies provided herein are the customer s sole and exclusive remedies In no event shall Varian Inc or its representatives be liable for any direct indirect special incidental or consequent
21. r bath c Situate the heater circulator so that you have access to the AC power switch the keypad is not accessible Should you need to move the heater circulator it is necessary to lift the entire dissolution apparatus Therefore this option is recommended only if bench space is at a premium Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 19 P N 70 9005 Operator s Manual Installation and Setup Electrical Connections Warning Ensure the equipment is configured for the voltage supplied Complete the following steps to make electrical connections Step 1 Ensure the power switch on the rear panel AC power connector is in the OFF position See Figure 2 VK 750D Rear Panel below FIGURE 2 VK 750D Rear Panel Step 2 Connect the power cord to the AC power connector Warning Because of the wide variety of AC outlet formats around the world the power cord you need may not be the one supplied with the unit It may be necessary for you to supply the power cord needed for your country or area Be sure that any power cord you use meets all local safety regulations and is rated to carry at least 10 amps Step 3 Plug the other end of the cord into an outlet of the proper voltage Varian Inc Page 20 VK 750D Heater Circulator Revision H 11 10 Installation and Setup Operator s Manual P N 70 9005 Interfacing to the Dissolution App
22. rtighten Step 5 Double check all connections Step 6 Fill the water bath with purified water to approximately one inch 2 5 cm above the inlet fitting The system is now ready for use Note Use ultrapure water when possible to minimize scale and mineral buildup Use algaecide to inhibit mold and bacteria growth Check a the label to ensure the formulation is compatible with the plastic materials used in the water bath construction The flow paths of the VK 750D are primarily stainless steel and should tolerate most clear water bath formulations Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 23 P N 70 9005 Operator s Manual Installation and Setup Liquid Connections Dual Apparatus Systems When using your VK 750D with two dissolution apparatus configured as 12 14 or 16 spindle systems the VK 750D output is divided between the two water baths then recombined at the inlet The water baths are also connected via the drains to ensure the water levels are always equal Use the following figure and the steps below to connect a dual dissolution apparatus water bath to the VK 750D FIGURE 4 Dual Water Bath Tubing Connections jansa BATH ON our E i i i i A ee Reel FROM BATH Step 1 Locate the two short lengths of tubing included in the VK 750D tubing kit Step 2 Slip one end of each piece of tubing over the inlet and outlet connector
23. s evident contact both the carrier who delivered the instruments to you and Varian Inc Though claims for damage should be filed with the carrier we will be glad to help you in filing a claim and in getting your system up and running as quickly as possible Step 3 Check the shipping carton for any items which may have come loose during shipping before discarding or storing the packaging Varian Inc Page 18 VK 750D Heater Circulator Revision H 11 10 Installation and Setup Operator s Manual P N 70 9005 Step 4 Place the unit on a clear dry and level section of the benchtop as close to the dissolution apparatus as possible At least eight inches 20 cm of unobstructed space should be available behind the unit for easy access to the rear panel power and liquid connections As with any electronic apparatus the area around the instrument must be kept clean and dry Warning The electrical connection at the back of the equipment is the primary disconnect for the instrument The heater circulator should be positioned to allow accessibility to the power cords for easy disconnection A properly grounded GFC recommended AC power receptacle rated at 20 amps or higher should be available within six feet two meters of the unit Note If you are interfacing your VK 750D to the VK 7000 7010 Dissolution Apparatus you can place it lengthwise in the space under the rear of the vessel table behind the molded wate
24. s on the VK 750D rear panel Slip a tubing clamp over the free end of each piece of plastic tubing and secure each clamp over the connectors To avoid damage to the tubing do not overtighten Varian Inc Page 24 VK 750D Heater Circulator Revision H 11 10 Installation and Setup Operator s Manual P N 70 9005 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Slip a tubing clamp over the free end of each piece of tubing and insert one of the supplied Y connectors into the end of each Secure the tubing clamps over the Y connectors To avoid damage to the tubing or connectors do not overtighten Attach a length of tubing to both branches of the Y connector on the VK 750D outlet Slip a tubing clamp over the free end of each piece of tubing and secure the tubing clamp over the Y connector To avoid damage to the tubing do not overtighten Slip another tubing clamp over the free end of each piece of tubing and attach the free end of each piece of tubing to the barbed angle adapters on the water bath inlets The inlet fitting is the higher of the two water bath fittings and has a perforated deflector screen attached on the inside of the water bath Secure the tubing clamps To avoid damage to the tubing do not overtighten Repeat steps 4 5 to attach the VK 750D inlet connectors to the water bath outlets Locate the length of tubing with the drain valve inserted Slip a tubing clamp over each end a
25. t must not be disposed of as unsorted municipal waste see WEEE Directive on page 11 General CE Compliant Products The VK 750D has been designed to comply with the requirements of the Electro magnetic Compatibility EMC Directive and the Low Voltage electrical safety Directive LVD of the European Union Varian has confirmed that each product complies with the relevant directives by testing a prototype against the prescribed European Norm EN standards Varian Inc Revision H 11 10 VK 750D Heater Circulator Page 11 P N 70 9005 Operator s Manual Safety Practices and Hazards Proof that a product complies with the directives is indicated by e the CE Marking appearing on the rear of the product e the documentation package that accompanies the product containing a copy of the declaration of conformity This declaration is the legal declaration by Varian that the product complies with the directives and also shows the EN standards to which the product was tested to demonstrate compliance The declaration of conformity is signed by the representative of the manufacturing plant cTUVus U S and Canadian Product Approvals The VK 750D has been designed to comply with North American safety requirements This product has been tested and certified for the North American market by TUV Rheinland of North America Inc The TUVus mark signifies that this product has been tested to U S standards and certified for the
26. to toggle between baud rates of 1200 2400 4800 and 9600 BPS Select the appropriate baud rate by continuing to press CLEAR until the desired selection displays Press ENTER Varian Inc Page 26 VK 750D Heater Circulator Revision H 11 10 Installation and Setup Operator s Manual P N 70 9005 This page was intentionally left blank except for this message Varian Inc chapter4 Operation Caution Before operating the circulator ensure the water bath is filled and the system is fully primed as described in Priming the System on page 28 Prolonged operation without water damages the pump and heaters Initial Power Up Turn on the heater circulator Flow begins almost immediately The unit runs very quietly with only a low hum If you hear gurgling noises it is because air remains in the tubing The air is usually expelled within approximately 30 seconds If it persists stop and prime the system as described in Priming the System on page 28 Varian Inc Page 28 VK 750D Heater Circulator Revision H 11 10 Operation Operator s Manual P N 70 9005 Priming the System The VK 750D Heater Circulator has been designed to be self priming under most conditions However it may require some assistance especially when it is new or has not been used for a period of time so that the tubing is completely dry Complete the following steps to prime the unit Step 1 Ensure t
27. us injury or painful electric shock Panels or covers that are retained by fasteners which require the use of a tool for removal may be opened only by Varian trained Varian qualified or Varian authorized service engineers Consult the manuals or product labels supplied with the heater circulator to determine which parts are operator accessible Application of the wrong supply voltage connection of the instrument to an incorrectly wired supply outlet or lack of proper electrical grounding can create a fire hazard or a potentially serious shock hazard and could seriously damage the instrument and any attached ancillary equipment Always use a three wire outlet with ground connection which is adequately rated for the load The installation must comply with local state and federal safety regulations Do not connect the instrument to the main power supply until you have made sure that the operating voltage is correctly set for the main power supply in the specific outlet in your laboratory to which the equipment will be connected Other Other specific warnings and cautions appear in the manuals where appropriate and detail the specific hazard describe how to avoid it and specify the possible consequences of not heeding the warning or caution Warning A Warning message appears in the manual when failure to observe instructions or precautions could result in death or injury Symbols depicting the nature of the specific hazard are
28. y a 5 amp fuse for 230 V Varian Inc Chapter 6 Service and Warranty The warranty is provided by Varian Inc or one of its authorized representatives Service and Warranty Information Varian dissolution products carry a one year warranty on parts and labor The Dissolution Systems Service Department or one of its representatives will at its option either repair or replace any mechanical and electrical components in your instrument which prove to be defective During the first year of warranty coverage there is no charge for the labor to repair your unit The Dissolution Systems Service Department or one of its representatives will determine the best site to repair the unit either onsite or returned to Varian Inc Any onsite warranty services are provided only at the initial installation point Installation and onsite warranty services are available only in Dissolution Systems service travel areas Varian Inc Page 40 VK 750D Heater Circulator Revision H 11 10 Service and Warranty Operator s Manual P N 70 9005 Exclusions and Limitations Excluded from this warranty are expendable or consumable items such as but not limited to paddles baskets vessels and acrylic water baths Also excluded are defects from improper or inadequate maintenance by the customer user induced chemical action or contamination unauthorized modification or misuse and improper site preparation and maintenance Operation of s
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