TO-Clean Manual
Contents
1. To fill the humidifier release the clips on the metal strap around the bottle and remove the metal strap While supporting the humidifier angle it away from the TO Clean and unscrew the PTFE lid Fill the humidifier about a quarter full with HPLC grade water only Do not fill more than half full If contamination from room d 10 WW WASSON ECE INSTRUMENTATION Hardware Description and Assembly air is a concern make sure to thoroughly purge the humidifier each time the water is changed before cleaning cans Vacuum Valve Assembly The vacuum valve assembly is located at the back of the TO Clean and consists of the vacuum valve and tee fitting shown in Figure 6 Attach the vacuum valve hose assembly from the dewar U tube to the bottom of the vacuum valve If not already connected attach the 1 8 vacuum valve actuation air line to the 1 8 fitting on the vacuum valve Attach the 1 8 nitrogen charge line from the bulkhead labeled To Tee Fitting located on the back of the controller box to the tee on the vacuum valve assembly 11 NW WASSON ECE INSTRUMENTATION Hardware Description and Assembly Figure 6 Vacuum Valve Assembly Nitrogen charge gas to bulkhead labeled To Tee Fitting Valve Actuation Air to bulkhead labeled Air or N2 60 psig Max Vacuum Hose to Dewar U tube Controller Box The controller box located at the upper right side of the TO Clean2. Vacuum Pump Default Settings Description Default Setpoint A higher gas ballast allows the pump to handle Gas Low Flow SW condensable vapors such as water but also Ballast Position I increases the pump ultimate pressure Mode High Vacuum Selects high vacuum mode over high Selector small droplet throughput mode The pump performs most efficiently when the oil is warm If cleaning cycles are performed frequently the pump may be left on For further information on the Edwards pump see the manual and CD included in the shipment Figure 1 Vacuum Pump Vacuum Hose to Dewar U Tube NAN 6 TI WASSON ECE INSTRUMENTATION Hardware Description and Assembly Dewar The dewar houses the U tube where contaminants are trapped This aids in cleaning the nitrogen entering the system protects the pump from contaminants in the canisters and prevents any back diffusion from the pump to the system Connect the dewar brackets to the right side of the TO Clean as shown in Figure 2 Slide the dewar into the brackets and place both the vacuum and nitrogen U tubes into the dewar along with the provided insulating cap Figure 2 Dewar Bracket Dewar Brackets Attach the vacuum hose from the pump to the dewar U tube using the metal clamp as shown in Figure 3 Attach the vacuum hose which goes to the assembly in Figure 6 to the other side of the dewar U tube using the metal clamp NW WASSON ECE IN
3. lines and valves before operating the TO Clean Always turn off the flammable gas at its source when the instrument is not being used or before working on the instrument Insure the TO Clean vent and vacuum vent are plumbed to a safe location free of any ignition sources The TO Clean is not designed to be used with toxic samples without a secondary ventilation system If the user must runa toxic gas in the TO Clean it should be housed in a ventilated secondary enclosure designed for that purpose such as a laboratory fume hood It is the responsibility of the customer to inform Wasson ECE if the TO Clean has been used with toxic chemicals prior to any instrument service being performed When handling any chemicals for use in the TO Clean all applicable local and national laboratory safety practices must be followed This would include but not be limited to correct use of Personal Protective Equipment PPE correct use of storage containers and correct handling of chemicals as defined in the laboratory s internal safety analysis and standard operating procedures Failure to adhere to laboratory safety practices could lead to injury or death Any disposal of chemicals must be in compliance with applicable local and national laws NW WASSON ECE INSTRUMENTATION Table of Contents Table of Contents Instrument Description wisscacssdicsenssisccanesdidsancndecuacasdncsandndncesessiudsanieandvandeus 1 Product Feat
4. N A WASSON ECE Save Method INSTRUMENTATION Method Name 1 2 3ja4 sje 7 sel e alw el RITI Y ul iol P A sjeler G H J Kit zix c vip n m del Save Cancel Canister Cleaning In the Start Menu Figure 8 select Clean The Clean Menu Figure 17 displays the Method that is currently loaded To start cleaning using the loaded method MAN SS WU WASSON ECE INSTRUMENTATION Operation parameters select Clean If no method is listed as loaded or a different method is desired select Load Method Figure 17 Clean Menu IN DEE Clean Menu Method Default Load Method Clean Cancel In the Load Method screen Figure 18 scroll to the desired method using the arrows on the side of the screen and choose Load Figure 18 Load Method Screen NW WASSON ECE Load Method INSTRUMENTATION Fast Clean Method A VI Test Method Default Load Cancel Delete MAN e TI WASSON ECE INSTRUMENTATION Operation Once the method has been loaded the user is returned to the Clean Menu and the loaded method is displayed on the screen The method has now been loaded and is ready to clean Select Clean The system will start to run the method and the Cleaning status screen Figure 19 will be displayed Cleaning status will display the status of the system including number of cycles remaining cycle status pressure and time remaining for the current c
5. e 40 mTorr vacuum for 12 6 liter canisters e Automated system leak test e Electronic valve control e Custom built trays for different canister sizes e User defined methods e Save up to ten methods e Isothermal oven controllable to 110 C e Edwards RV 8 vacuum pump NW WASSON ECE INSTRUMENTATION Instrument Description Operating Specifications The TO Clean was designed to be used according to the following specifications Any use outside of the intended purpose and specifications of this instrument may result in damage to the system bodily injury and possible loss of warranty Feature Specifications TO Clean Model Number TO0108 TO Clean Serial Number General TO Clean is designed to purge vacuum sample canisters for cleaning per EPA Method TO 14 TO 15 Ambient operation temperature 5 to 40 C 41 to 104 F Canister Sample Type Specially passivated stainless steel canisters Silco Can or equivalent Ambient Air Samples Required Gases High purity nitrogen and actuation air Nitrogen supply input pressure range 10 35 psig max see page 3 for details Actuation supply input pressure range 55 60 psig max see page 3 for details Required Cryogen Liquid argon for dewar Required Water HPLC grade water for humidifer Venting Requirements Purge vent and vacuum vent should be vented to a safe location TO Clean Power 120 VAC 50 60
6. the user is presented with the Start Menu Figure 8 which allows 18 NW WASSON ECE INSTRUMENTATION Operation the user to select one of three options Configure Methods Diagnostics or Clean Figure 8 Start Menu VEE Start Menu Configure Methods Diagnostics Clean Diagnostics The control software allows the user to diagnose the system for potential problems By selecting Diagnostics from the Start Menu the user can leak check the system and actuate valves in the system to diagnose valve problems The Diagnostics screen Figure 9 allows the user to select Valve Control or Leak Test the system 19 NW WASSON ECE INSTRUMENTATION Operation Figure 9 Diagnostics IT Diagnostics Valve Control Leak Test Cancel Valve Testing All system valves can be tested using the Valve Control menu Figure 10 This menu allows the user to actuate the Pressure Valve Vent Valve and Vacuum Valve When the valve is actuated the user will hear the valve switch If the valve switch is not audible then contact the Wasson ECE service department for support at 970 221 9179 Figure 10 Valve Control e Valve Control Pressure Valve Off Vent Valve Off Vacuum Valve Off Done N A 20 TI WASSON ECE INSTRUMENTATION Operation Leak Testing Before running cleaning cycles the system should be leak checked If the system is not leak tight achieving lower vacuum will
7. Hz 20A or 220 240V 50 60Hz 9 6A Vacuum Pump Power 120 VAC 50 60 Hz 7 8A or 220 240V 50 60Hz 4 0A Operation Continuous Weight 525 lbs 238 kg Dimensions 44 7 H x 49 W x 27 D Oven Temperature Range Room temperature 110 C Soak Pressure Range 5 psig 30 psig Vacuum Pressure Range 40 mTorr 1000 mTorr Cycle Pressure Time 0 minutes 999 minutes INSTRUMENTATION NW WASSON ECE Initial Setup Initial Setup Gas Supply Connect all gas lines to the proper fittings as described in the Hardware Description and Assembly section Gas bottle regulators should be high quality two stage regulators Set the gas bottle pressures leading to the TO Clean to the following gas pressures pes Minimum Quality Maximum Set Pressure Nitrogen or Zero Air Ultra High Purity 35 psig max Note Nitrogen or zero air pressures greater than 35 psig can damage the vacuum transducer Valve actuation requires approximately 55 psig dry instrument air or nitrogen Industrial compressed house air is usually inadequate for valve actuation without additional treatment Water and particulates can damage the actuators Connect gases as described in the Hardware Description and Assembly section Wasson ECE recommends leaving the nitrogen source connected and pressurized unless you are changing bottles When you need to change bottles follow the procedures outlined in the D
8. RESTEK di WASSON ECE INSTRUMENTATION TO Clean Manual Version 4 3 101 Rome Ct Fort Collins CO 80526 Ph 970 221 9176 F 970 221 9364 Copyright 2012 by Wasson ECE Instrumentation Inc MG 10 12 All rights reserved worldwide Printed in the United States of America This publication is protected by federal copyright law No part of this publication may be copied or distributed transmitted transcribed stored in a retrieval system or transmitted into any human or computer language in any form or by any means electronic mechanical magnetic manual or otherwise or disclosed to third parties without the express written permission of Wasson ECE Instrumentation Inc 101 Rome Court Fort Collins CO 80524 Disclaimer of Warranty and Limited Warranty This publication is provided as is without warranty of any kind Wasson ECE Instrumentation Inc does not warrant guarantee or make any representation regarding the use or the results of the use of this publication in terms of correctness accuracy reliability currentness or otherwise Further Wasson ECE Instrumentation Inc reserves the right to review this publication and to make changes from time to time in the content herein without obligation of Wasson ECE Instrumentation Inc to notify any person or organization of such revision or changes NW WASSON ECE INSTRUMENTATION Note to the End User This manual should be read in its enti
9. STRUMENTATION Hardware Description and Assembly Figure 3 Dewar Vacuum Hose Connections Vacuum FANN Vacuum Hose Hose to GEM to Valve Pump l Assembly Connect the 1 8 line from the compressed nitrogen regulator to the 1 8 moisture trap provided Connect the other end of the 1 8 moisture trap to the 1 8 dewar U tube fitting as shown in Figure 4 Connect the other side of the 1 8 dewar U tube line to the bottom of the humidification chamber described in the next section The dewar can be filled with liquid argon once the system has been assembled and leak checked per the procedures in the Leak Testing section on page 21 The 1 8 fittings on the charge gas line need to be disconnected to remove the dewar lid The user should be able to lift the insulating lid with the vacuum hose connections intact If the dewar needs to be moved to the liqud argon source remove one of the screws holding the top strap around the dewar For safety it is preferable if a NAN 8 TI WASSON ECE INSTRUMENTATION Hardware Description and Assembly liquid argon source can be plumbed to the system Fill the dewar with liquid argon to three inches below the top exerting extreme caution not to expose skin to the liquid argon This should be enough cryogen for a 12 hour period Place the dewar back on the shelf and re screw the strap if necessary Carefully replace the dewar lid and connect the fittings on the charge gas
10. at any time by pressing Cancel Figure 12 Leak Test Status II EH Leak Test Leak Test Status Pressure 12 23 PSIG Pressure Change 0 23 PSIG Time 10 00 min Cancel NW WASSON ECE INSTRUMENTATION 22 Operation Method Configuration From the Start Menu select Configure Methods In the Configuration screen Figure 13 the user is able to configure the method including Cycle Setup Pressure Setup and Canister End State Figure 13 Configuration Screen NW WASSON ECE Configuration INSTRUMENTATION Cycle Setup Method Name Default Canister End State Press Setup Vacuum Pressurized Load Save Accept To configure a method start by selecting Cycle Setup In the Cycle Setup screen Figure 14 the user can select the number of cycles desired by touching the up and down arrows Notice that for each cycle both the Low and High Pressure Cycle Times can be adjusted Each cycle can have different low and high pressure cycle times Once the desired settings have been achieved select Accept to return to the Configuration screen MAN WU WASSON ECE INSTRUMENTATION Operation Figure 14 Cycle Setup Oe Cycle Times Number of Cycles 3 A y Cycle Number 1 A v V Low Pressure Cycle Time 1 00 min High Pressure Cycle Time 1 00 min A V Accept Cancel From the Confi
11. be difficult if not impossible First the charge gas line should be tested for leaks using a pressure decay test This is done by adjusting the regulator to pressurize the line to 35 psig Once the pressure gauge reading has stabilized close the regulator If the gauge pressure remains constant after ten minutes the charge gas line is leak tight If the gauge pressure does not remain constant check the fittings between the regulator and V3 on the plumbing diagram and perform this test again Once the charge gas line is tested the rest of the system can be tested for leaks using the Leak Test Menu Figure 11 From the Diagnostics menu select Leak Test Using the arrows choose a desired charge pressure and a soak time If the system holds pressure to 0 4 psi the system is considered leak tight and will pass the test If the system fails the leak test secure all fittings and run the leak test again The status of the leak test is displayed in the Leak Test menu The leak test feature can also be used to ensure the canisters have been attached properly and that none of the canister fittings are loose before cleaning 21 NW WASSON ECE INSTRUMENTATION Operation Figure 11 Leak Test Menu NW WASSON ECE Leak Test INSTRUMENTATION Charge Pressure 30 PSIG A vy Test Time 1 00 min A v Start Cancel As the leak test is performed the Leak Test Status screen Figure 12 is displayed The leak test can be stopped
12. enough clearance in front of the TO Clean to open the door 38 and also to access the back of the controller box Note The TO Clean weighs 525 Ibs 238 1 kg Do not attempt to lift this system by yourself Use a mechanical lifting device and secure edges to ensure the system does not tip over Follow standard safety guidelines when moving this system Vacuum Pump The TO Clean comes with an Edwards RV 8 vacuum pump Unpack the pump and place it on the floor next to the canister cleaner Attach the vacuum hose to the top of the pump using the metal clamp as shown in Figure 1 The oil mist filter and oil ballast have been pre assembled at the factory and are connected by a short piece of tubing Unscrew the gray oil ballast cap and screw the oil ballast into the threaded hole until tight Remove the clear cap from the black mist filter fitting on the pump Place the oil mist filter on top of the black fitting and secure using the metal clamp Unscrew the two gray oil caps on the pump and pour the oil that came with the vacuum pump in either of the inlets There is an oil level window on the back of the vacuum pump The oil reservoir should be 1 3 1 2 full You should not need the entire bottle for the first fill Screw the oil caps back on before turning the pump on NW WASSON ECE INSTRUMENTATION Hardware Description and Assembly The pump settings have been set at factory to the values in Table 1 Table 1
13. ently cooled close all the canister valves Close the valve on the nitrogen bottle On the Start Menu select Diagnostics On the Diagnostics menu select Valve Control oa fF wh On the Valve Control menu click the Vent Valve On This will bring the manifold and lines between V3 and V1 to atmospheric pressure 7 Click the Pressure Valve On You should hear nitrogen flowing out of the purge vent Once the regulator pressure reads 0 close the regulator On the Valve Control screen click the Vent Valve and Pressure Valve Off 10 Replace the nitrogen bottle 11 Open the nitrogen bottle valve and set the regulator to desired pressure 35 psig maximum 12 The system is now ready to run cleaning cycles MAN e WU WASSON ECE INSTRUMENTATION Operation Powering Down the System W After the last cleaning cycle is finished reduce the oven temperature setpoint to 25 C Open the door for faster cooling Do not touch oven components until they are sufficiently cooled Once the oven is sufficiently cooled close all the canister valves If you are planning on disconnecting the nitrogen source follow the instructions in the previous section Shut off power to the TO Clean using the switch on the back of the controller box shown in Figure 7 Shut off the vacuum pump using the power switch located on the back of the pump 29 WASSON ECE INSTRUMENTATION Methods Methods Default Method The TO Clean is d
14. esigned around EPA Method TO 15 and comes with a Default method based on these parameters The table below shows these settings as well as the EPA recommended method for non heated cleaning cycles Customers may adjust these parameters to create methods for their specific needs as described in the Method Configuration section on page 23 Method Canister End State Low Pressure Cycle Time min Table 2 Method Parameters High Pressure Cycle Time min Pressure psig Vacuum Pressure mTorr Default Vacuum 60 5 30 TO 15 Recommended Procedure without Heating Vacuum NW WASSON ECE INSTRUMENTATION 60 Not specified 30 60 Not specified 30 60 Not specified 30 30 Maintenance Maintenance This section can help you solve operating problems that may arise while operating the TO Clean If you cannot solve the problem call the Wasson ECE Instrumentation Service Department at 970 221 9179 Troubleshooting NW WASSON ECE INSTRUMENTATION 31 Maintenance Wen Symptoms Recommended Action Setpoint is too low Although the software can set the vacuum pressure to 10 mtorr the vacuum pump is not strong enough to achieve this setpoint Change vacuum settings to 40 mtorr There is a system leak Run the Leak Test method If there is a leak check canister connections and fitting in controller box If Leak T
15. ess Steel U Tube pressure trap A2552 002 Edwards RV 8 Vacuum pump 70218 Edwards Oil 1 quart 70487 Edwards Oil Mist Filter NW WASSON ECE INSTRUMENTATION 70219 36 Warranty Statement Warranty Statement Wasson ECE provides quality analytical systems that are designed tested and warranted to perform in a reasonable manner consistent with the performance criteria as detailed in the Quotation from which the system was purchased The warranty includes all materials provided as part of the system such materials originating with Wasson ECE Agilent Technologies or any other third party components incorporated into the solution and identified on the Quotation Wasson ECE analytical systems are warranted to perform to design specifications for a period of one year after shipment from the factory in Colorado Both materials and labor are included in the warranty in North America where the sale is directly from Wasson ECE to the customer who is the end user Outside of North America only materials are warranted labor is the responsibility of local distributors or other resale agents This warranty excludes the end user s operation of the systems in a manner outside of their design specifications Examples of this misuse include but are not limited to e The application of inappropriate samples e Over temperature of ovens columns or valves e Low quality carrier gas or out of carrier gas e Par
16. est does not indicate a leak check the connections of the PVC tubing System is not reaching There is water in the U tube Remove U tube from dewar and vacuum thaw in a properly vented location setpoint The pump oil needs to be replaced Follow procedures in the vacuum pump manual The vacuum valve is not actuating Use diagnostics screen to turn on the vacuum valve There should be a loud click when it actuates If there is no sound check the pressure of the actuation air H the valve is still not working call Wasson ECE for a replacement dee The U tube or check valve is frozen Remove U tube or check ret valve from the dewar and thaw in a properly vented location not reaching the pressure The pressure transducer is not reading correctly Call Wasson setpoint ECE for assistance Vacuum Pump The charge pressure is not high enough or the pressure setpoint The valves are is too high The system turns the pressure valve on and off as it clicking but gets closer to the pressure setpoint The charge pressure must won t reach be set at at least 5 10 psig above the pressure setpoint or the pressure set valve will just keep clicking on and off Please note that the point setpoint should not be greater than 30 psig as the system can only handle a maximum of 35 psig Pressure A periodic maintenance and inspection schedule of the vacuum pump can lead to increased uptime reliable results and longer instrument lifetime Refer
17. fittings on either side of the Pressure U tube 2 After the last cleaning cycle is finished reduce oven temperature setpoint to 25 C Once the oven is sufficiently cooled close all the canister valves Remove the vacuum hoses on either side of the Vacuum U tube by unscrewing metal clamps Carefully remove U tubes from dewar cap Allow the traps to come to room temperature in a properly vented location Pour out any moisture in the U tubes Allow to dry completely They may also be placed in a heater to facilitate removal of organic components 9 Replace dewar cap and attach U tubes to respective fittings This should be done on a daily basis or more frequently if needed NAT 35 WW WASSON ECE INSTRUMENTATION Replacement Parts Replacement Parts Refer to the plumbing diagram on page 39 for the valve that needs to be replaced Wasson ECE Part Number Valve Item Wasson ECE Part Number O Ring Seals for Vacuum Hose and Tee Fitting 25566 Jo Nuts with caps 12910 001 Jo Vespel ferrules 1499 Tee Fitting NW25 25572 Metal Clamps for Vacuum and Tee 25570 Pressure Transducer 0 50 PSIG 25560 Pressure Transducer 15 mTorr 25562 PVC Vacuum Tubing 6 ft 3 ft 25574 003 Humidifier 25568 019 Humidifier cap 25568 020 Dewar Pyrex Brand Glass 4300 mL 25568 022 2 Stainless Steel U tube vacuum trap A2552 004 1 8 Stainl
18. guration screen Figure 13 select Pressure Setup In the Pressure Setup screen Figure 15 cycle set the charge pressure and the vacuum pressure for each cycle Figure 15 Pressure Setup II EE Pressure Cycle Number 1 A v Charge to Pressure 30 PSI A v Vacuum Pressure 200 mTorr A v Accept Cancel Select Accept to return to the Configuration screen Figure 13 Before the method is saved choose a Canister End State The canister end state allows the user to select if the canisters will be under vacuum or under pressure at the end 24 NW WASSON ECE INSTRUMENTATION Operation of the cycle If the canisters will need to be tested for certification after cleaning select Pressure The pressure of the canister will be left at the Charge Pressure of the last cycle If the canisters will need to be readied for sampling then select Vacuum The canisters will be left at the Vacuum Pressure of the last cycle This pressure is set in the Pressure Setup screen Figure 15 After the method has been configured the user can save and name the method using the keyboard provided in the Save Method screen Figure 16 by choosing Save from the Configuration Figure 13 screen Type the name of the new method and choose Save After saving the method the software returns to the Configuration screen From the Configuration screen choose Accept This will return the user to the Start Menu Figure 8 Figure 16 Save Method Screen
19. houses the electrical components including the heater controller and the touch screen controller Operation of these components is described in the Operation section of this manual There are five 1 8 bulkheads located on the back of the controller box shown in Figure 7 If not already connected attach the tubing shown in Figure 6 Valve Actuation Air and Nitrogen Charge Gas to the bulkheads labeled Vacuum 12 NW WASSON ECE INSTRUMENTATION Hardware Description and Assembly Valve and To Tee Fitting respectively and connect tubing from the humidifier shown in Figure 5 to the bulkhead labeled UHP Nitrogen You will need to connect actuator gas to the bulkhead labeled Air or Nitrogen 60 PSIG Max and the bulkhead labeled Purge Vent to a proper vent location Troubleshooting note The vacuum valve requires pressures between 55 60 psig to actuate Gas pressures outside of this range will either fail to actuate the valve or cause damage to hardware components Figure 7 Controller Box Back Plug the power cable to the back of the controller box and to the appropriate electrical outlet The power switch is located on the back of the control box Set the power switch to the On position The fan on the back of the controller box should start running and the heater and control screen on the front of the controller box will turn on 13 NW WASSON ECE INSTRUMENTATION O
20. isconnecting the Nitrogen Source section on page 28 Wasson ECE does not recommend using the same nitrogen source for the valve actuation and the charge pressure lines as improperly disconnecting the nitrogen charge source could allow water to flow into the actuation valve line and cause damage to the electrical components If the same nitrogen source is used two N A 3 VW WASSON ECE INSTRUMENTATION Initial Setup regulators will be required to control the pressures within the correct operating range of each line Cryogenic Liquid The system requires liquid cryogen to fill the 4 3L dewar provided Wasson ECE recommends the use of liquid argon from a low pressure dewar or a bulk laboratory source Caution Exert extreme caution when working with cryogen to prevent injuries from frostbite asphyxiation and explosions Always wear proper personal protection equipment PPE including gloves and eye protection when working with cryogenic liquids Power Requirements The TO Clean system and vacuum pump are configured for 120VAC 50 60 Hz or 220 240VAC 50 60 Hz See the Operating Specifications on page 2 for amperage requirements NW WASSON ECE INSTRUMENTATION Hardware Description and Assembly Hardware Description and Assembly Place the TO Clean on a bench top or on the optional system cart in an area with appropriate electrical outlets and gas supply as described in the previous section There needs to be
21. line Figure 4 Dewar with Nitrogen Charge Gas Connection z y Nitrogen or charge gas through Dewar Nitrogen or charge gas through Dewar Humidification Chamber The humidification chamber is filled with water and humidifies the nitrogen entering the canisters This aids in removing volatile organic compounds from the canisters If not already connected attach the 1 8 nitrogen charge gas tubing from the dewar to the top of the tee on the humidifier cap Do not remove the check valve between the dewar and humidifier This prevents water from backing WN WASSON ECE INSTRUMENTATION Hardware Description and Assembly into the dewar and freezing the nitrogen charge gas line Attach the 1 8 tubing from the side fitting on the tee on the humidifier cap to the 1 4 bulkhead labeled UHP Nitrogen on the back of the controller box shown in Figure 7 Note The maximum pressure of the humidifier is 60 psig If the nitrogen line exceeds this pressure the humidification chamber could explode The user should take care to set the system pressure at the maximum pressure of 35 psig Figure 5 Humidification Chamber To UHP N2 To Dewar Nitrogen or bulkhead on back Charge gas 1 8 1 of controller box fitting e Humidification Humidification Chamber Chamber Strap and E Release Clip Z a b 9 K E hi e vi
22. lower display The upper display should show 110 use the W and A keys to adjust the number if it is not set to 110 Press the tool key until Loop is in the upper display Press the Advance 0 key until t tUn is in the lower display The upper display should show yES use the W and A keys to adjust the parameter if it is not set to yES 15 NW WASSON ECE INSTRUMENTATION Operation 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Press the key until Loop is in the upper display Use the V and A keys to scroll to Ai in the upper display Press the Advance 0 key until Ai is in the lower display The upper display should be set to 2 Press the Advance 0 key to scroll to SEn in the lower display Use the V and nu keys to scroll to r0 1H in the upper display Press the Advance 0 key to scroll to rt L in the lower display Use the VW and A keys to scroll to 2 in the upper display Press the key to get back to Ai in the upper display Use the V and A keys to scroll to dio in the upper display Press the Advance 0 key to scroll to dir in the lower display Use the V and A keys to scroll to in in the upper display Use the Advance 0 key to scroll to LEv in the lower display Use the V and A keys to scroll to Low in the upper displa
23. o Dewar U tube from the pump inlet port Figure 1 MAN 33 WU WASSON ECE INSTRUMENTATION Maintenance Remove the filter and O ring and inspect for cleanliness If needed remove the O ring from the filter and wash the filter with a proper cleaning solution and allow it to dry Do not let the O ring come into contact with the cleaning solution 4 Re assemble the filter O ring and Vacuum Hose to Dewar U tube Inspect and Clean the Gas Ballast Control 1 Remove the oil ballast Figure 1 from the top of the pump 2 Wipe with a clean dry cloth and check that the air hole is not blocked 3 Screw the oil ballast back into place Clean Oil Level Sight Glass Drain the oil as described above 2 Undo the two screws at the top and bottom of the oil level window and remove the bezel window and O ring 3 Clean the screws bezel and window with a proper cleaning solution 4 Wipe the O ring with a dry cloth 5 Re assemble the oil level window 6 Fill the pump with oil and check for any leaks through the window Clean the Motor Fan Cover and Enclosure 1 Turn the pump OFF and disconnect from the electrical supply 2 Use a dry cloth and soft brush to remove dirt and deposits from the fan cover and enclosure Dewar U Tube Traps 34 NW WASSON ECE INSTRUMENTATION Maintenance The Vacuum U tube and Pressure U tube housed in the Dewar will periodically need cleaning To do this 1 Remove the 1 8 tube
24. ol in the upper display 35 Press the key until the Main display appears again showing the temperatures in the upper and lower displays 36 To enter the Oper Menus press and hold both VW and A until the lower display says OPEr Use the VW and A keys to scroll to ALM in the upper display 37 Press the Advance 0 key until the lower display shows A hi Use the V and A keys to change the upper display to 300 38 Press the key until the Main display appears again showing the temperatures in the upper and lower displays Autotuning Controllers You may occasionally need to perform an autotune to ensure the Watlow controller is working optimally Before autotuning make sure the controller hardware is installed correctly and the sensor type and function along with the scale setting are set in the configuration parameters First enter the desired set point or one that is in the middle of the expectant range of what needs to be tuned Next turn on the autotuning by following the steps below 1 From the Main display press the Advance 0 key until the lower display shows AUt1 Use the V and A keys to change the upper display to yES When autotuning is working the display will flash back and forth between the current display and the upper display 17 NW WASSON ECE INSTRUMENTATION Operation showing tUn1 and the lower display showing Attn Once autotuning is finished the contr
25. oller will start controlling at the normal set point using the new parameters 2 Press the key until the Main display appears again showing the temperatures in the upper and lower displays Connecting the Canisters Place the 6 liter canisters upside down in the slots in the oven shelves and connect them to the 1 4 Swagelok fittings provided with the steel flex tubing It is easiest to start loading cans on the top shelf in the back and work forward and down It is helpful to make sure the valves are facing forward when connecting the canisters Do not open the valves until all positions are connected so the canister contents can be properly directed to the vent If there are any positions that are unused ensure that position is plugged with the provided 1 4 Swagelok plug Connecting 1 Liter Canisters If the optional upgrade to 24 1 Liter Canister capacity was purchased the system will include 12 sheet metal inserts These are removable and are fastened to the standard rack with four screws each The 1 liter canisters are placed upside down over the opening in the insert The steel flex tubing will have a removable tee with two connections to handle double the canisters To convert back to 6 liter canisters remove the metal inserts by unscrewing the 4 screws and remove the tees from the flex tubing lines Software Control When the controller is powered on using the power switch located on the back of the controller
26. peration Operation To start using the system the TO Clean and the vacuum pump must be powered on The power switches are located on the back of the controller box and the back of the vacuum pump Once these have been switched on the following sections can be used to set the oven temperature and configure cleaning methods Setting the Oven Temperature Watlow EZ Zone PM Controller The oven temperature is controlled by the Watlow controller located on the front of the control panel Turn on the TO Clean to power up the controller Make sure the oven door is closed to operate the controller as a safety latch is installed to shut off heaters when the door is open Set the controller temperature to the temperature at which you wish to clean the canisters To change the operating temperature press the V or A arrow keys on the Watlow controller The lower display will show the set temperature the upper display will show the actual temperature The oven s maximum temperature is 110 C Note If you are using Restek canisters the blue Parker valves can withstand heating to 250 C but the gauges on the 3 way valves can only be heated to 80 C Please verify what type of valve gauge is on the canister before setting the oven temperature The Watlow parameters have been factory set If you need to re set these parameters follow the instructions described below Complete information about the Watlow controller and all default
27. rety prior to use of the instrument Once read please follow the instructions in the Initial Setup section of the manual in setting gas pressures and supplying appropriate power to the TO Clean A This symbol alerts the user to a potentially hazardous situation The user should refer to this section of the manual before operating the equipment Important Safety Warnings A A A Parts of the TO Clean operate at temperatures high enough to cause serious burns You should always cool the TO Clean to room temperature before working on the system If you must perform maintenance on hot parts use a tool and thermally protective gloves If the TO Clean is connected to a power source even if the power switch is off potentially dangerous voltages exist The hazardous parts are shielded by covers With the covers in place it should be difficult to accidently make contact with dangerous voltages Before performing any procedure that requires removal of a cover disconnect the gas chromatograph from the power source If the power cord insulation is frayed or worn the cord must be replaced Contact Wasson ECE for a suitable replacement part The TO Clean is not designed for use with flammable samples If using a flammable sample with the TO Clean be aware that a leak in the system may cause a fire or explosion hazard In any application using flammable gases leak check all connections NW WASSON ECE INSTRUMENTATION
28. telemeemeanaeeiere 34 Replacement E e CN 36 UE E E E 37 CE Certification Declaration of Conformity rrrrrnnnnnnnnnvvvvnnnnnnnnnnnn 38 Plumbing Diagram vececeiciecasesssesewecicerennsaneresecsnecrdsssnersdensnerenciiveranniineswees 39 NW WASSON ECE INSTRUMENTATION Instrument Description Instrument Description TO Clean is a revolutionary canister cleaning system developed by Wasson ECE Instrumentation The TO Clean canister cleaner allows for fully automated canister cleaning The TO 14 15 compliant TO Clean system was designed to take the guess work out of canister cleaning The system has a capacity of twelve 6 L canisters increasing your lab s efficiency The system is fully automated allowing the user to start a cleaning cycle and walk away Using the touch screen controller up to ten custom methods can be defined and loaded as needed The system also comes with an automated leak check method to ensure system performance This provides a high performance system that is easy to use and consistent An on board touch screen embedded controller makes system operation as easy as pressing start The user can define the parameters for each method including number of cycles pressure and soak times Once the method has been defined it is saved and is accessible for later use Product Features e EPA Method TO 14 15 compliant e 12 canister capacity expandable to 24 one liter canisters e Embedded touch screen controller
29. ticles precipitates or heavy liquids introduced e Power fluctuations such as over voltage or off frequency e Method loss corruption or modifications not authorized e Fire or mechanical damage from the environment e Damage from transportation outside of contracted scope Revised August 1 2007 MAN S TI WASSON ECE INSTRUMENTATION CE Certification Declaration of Conformity CE Certification Declaration of Conformity NW WASSON ECE INSTRUMENTATION 38 Plumbing Diagram Plumbing Diagram NW WASSON ECE INSTRUMENTATION 39
30. to Table 3 for the recommended maintenance schedule for the vacuum pump Maintenance instructions are described below For further information refer to the Edwards Instruction Manual CD which is included with the system MAN 32 WU WASSON ECE INSTRUMENTATION Maintenance Table 3 Recommended Maintenance Schedule for Vacuum Pump Maintenance Frequency Check oil level Weekly Replace the oil Every 3000 hours of operation Inspect and clean inlet filter Yearly Inspect and clean gas ballast control Yearly Clean oil level window Yearly Clean motor fan cover and enclosure Yearly Check Oil Level The user must ensure that there is sufficient oil in the vacuum pump This can be quickly monitored using the oil level window on the back of the pump If you need to add more oil follow the steps in the Hardware Description and Assembly section of this manual on page 5 Replace the Oil 1 Operate the pump for ten minutes to warm the oil Turn the pump Off Place a block under the front of the pump to tilt it toward the drain in the back Unscrew one of the oil caps on the top of the pump Place a vessel under the drain and remove the drain plug Replace drain plug and fill the pump with new oil as described in the Hardware Description and Assembly section of the manual on page 5 7 Replace oil caps and remove block before operating the pump Inspect and Clean the Inlet Filter 1 Disconnect the Vacuum Hose t
31. ures ERE rnrn tesenn tEEnn Enese n nnen n n 1 Op rating Ee Le E 2 Initial Set p EN 3 G SUN seede E 3 Cryogenic LVL 4 Power e TE 4 Hardware Description and Assembly nnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnen 5 VEC UU Pumpueaaesseamsmsiansesannuiakkeinaitensnuneasheinetkvinnskein 5 Ee 7 Humidification Chamber E 9 Vacuum Valve Assembly L rum sne 11 C ntroll r gt REE EE EE 12 el EE nen aeknnnsinibden 14 Setting the Oven Temperature Watlow EZ Zone PM Controller 14 Setting your Watlow Parameter 15 Autotuning Controllers ccccccceeeseeeeeeeeceeeeeceaeeeeneeceeeeesaaeeesaaeseeeeeseaeeesaeeseaaeseeeeesaas 17 Connecting the Canisters LL Lansoreusamaiednmsmmaridreimsmmddisemmmsidn 18 Connecting 1 Liter Canisters eccceceeceeeeeeeeeeeeeeeeeeceaeeesaaeeeeaeeseeeeeseaeessaeeeeneeenaees 18 EHNEN eege ee eege eege 18 Nell te 19 NW WASSON ECE INSTRUMENTATION Table of Contents Method Configuration ccccccccceeeeeeceeeeceeeeecaeeeeaeeseeeeesaeeesaaeseeeeeseeeetaeeseaeesenneess 23 Canister GICANING DEE 25 d ERR 27 Safe Shutdown Geen te 28 Disconnecting the Nitrogen Gource nere renrnrresnnrnnennnnnrnnenenn 28 Powering Down the System msrnnannnnrnrrnnnnrrnnnnvnnenvnnrvrrennnrnnennnnnennenrsrreennrnssnnnnnennenenn 29 Methods EE 30 Default Method WEE 30 Ee EEN EA Tren 31 Vacuum PP eee 32 Dewar U Tube Traps i isscssscssinentcierenasessiceneebenasanttesuenntbenmeeseeanacnne
32. values can be found in the Watlow Series EZ Zone PM PID Controller User s Manual on the CD included with the shipment 14 NW WASSON ECE INSTRUMENTATION Operation Setting your Watlow Parameters gt A o OD NOWA 11 12 13 To enter the Setup Menus press and hold both V and A keys until the lower display says SEt The upper display should give you several different options Use the V and A keys to scroll through these options Scroll to gLbL and hit the Advance key 0 C_F should show up in the lower display The upper display should be c Use the and A keys to scroll through the options for the upper display Hit the to return to the gLbL display Use the VW and A keys to scroll to Ai in the upper display and hit the Advance 0 key Keep pressing the Advance 0 key until SEn is in the lower display Hit an arrow key to scroll to tc in the upper display Hit the Advance key and scroll to Lin in the lower display Use the VW and A keys to scroll to H in the upper display Hit the key two times The upper display should show Loop use the V and A keys to adjust the parameter if it is not set to Loop Press the Advance 0 key until L SP is in the lower display The upper display should show 0 use the VW and A keys to adjust the number if it is not set to 0 Press the Advance key until h SP is in the
33. y Use the Advance OI key to scroll to Fn in the lower display Use the V and A keys to scroll to oFF in the upper display Press the key to get back to dio in the upper display Use the Advance 0 key to scroll to dir in the lower display Use the V and A keys to scroll to Ot Pt in the upper display Use the Advance 0 key to scroll to Fn in the lower display Use the VW and A keys to scroll to ALM in the upper display Use the Advance key to scroll to Fi in the lower display Use the V and A keys to scroll to 1 in the upper display Use the key to get back to dio in the upper display Use the V and A keys to scroll to ALM in the upper display Press the Advance 0 key to scroll to A ty in the lower display Use the V and A keys to select Pr AL in the upper display Press the Advance 0 key to scroll to Sr A in the lower display Use the VW and A keys to scroll to Ai in the upper display INSTRUMENTATION 16 NW WASSON ECE Operation 32 Press the Advance 0 key to scroll to iSA in the lower display Use the V and A keys to scroll to 2 in the upper display 33 Press the Advance 0 key to scroll to A hy in the lower display Use the VW and nu keys to get to 1 in the upper display 34 Press the Advance 0 key to scroll to A L9 in the lower display Use the V and A keys to scroll to AL
34. ycle Using the Cancel button the cleaning can be cancelled at any time Figure 19 Cleaning Status N A WASSON ECE Cleaning INSTRUMENTATION Cleaning Status Cycles Left 1 Cycle Status Venting Pressure 12 23 PSIG Time 10 00 min Cancel Initial Use The TO Clean system components have been tested to be free of contamination However contamination can occur during transport from exposure to laboratory air or from impure water in the humidifier Before using the system for the first time it is recommended that the user purges the system extensively with humidified air or nitrogen before cleaning canisters This can be done by setting up a method with multiple cycles and running the method with the manifold capped 27 WN WASSON ECE INSTRUMENTATION Operation This procedure is also recommended anytime the water in the humidifier is changed or the system has been exposed to room air for an extended period Safe Shutdown Procedures Disconnecting the Nitrogen Source To ensure uninterrupted operation of the TO Clean the following procedures must be followed when reducing nitrogen supply pressure or changing nitrogen bottles Failure to follow these procedures may result in water from the humidifier backing into the dewar U tube and freezing 1 After the last cleaning cycle is finished reduce oven temperature set point to 25 C Open the door for faster cooling Once the oven is suffici
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