Gas Clean Filter System User Guide
Contents
1. Charcoal GC MS Charcoal Charcoal Figure 34 Configuration 2 Four position connecting unit User Guide Using the Gas Clean Filter System Gas Flow in a Gas Clean Filter Gas flows in an upward direction from the bottom of the filter to the top and then downward through the filter material indicating material and out the bottom of the filter see Figure 35 Filter material Indicating material ail l Figure 35 Flow of gas through the Gas Clean Filter User Guide 39 Using the Gas Clean Filter System Replacing the Gas Clean Filter When to replace the Gas Clean Filter As gas passes through the filter material the filter picks up impurities and eventually becomes consumed over time When this occurs an increased amount of impurities reach the indicating material which causes the material to change color from the top down When 75 or more of the indicating material s color has changed this indicates that the filter is consumed see Figure 36 Filter material Indicating material color change Indicating material original color Figure 36 Indicating material color change Agilent recommends replacing the filter when 75 or more of the indicator s color has changed from the top down or within one year of installation 40 User Guide User Guide Using the Gas Clean Filter System The indicator color and consumed indicator colors are different for2. Agilent Gas Clean Filter System User Manual Agg Agilent Technologies Notices Agilent Technologies Inc 2013 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or translation into a foreign language without prior agreement and written consent from Agilent Technologies Inc as governed by United States and international copyright laws Manual Part Number 5973 1528 Edition Third edition August 2013 Second edition May 2013 First edition August 2012 Printed in USA Agilent Technologies Inc 2850 Centerville Road Wilmington DE 19808 1610 USA Warranty The material contained in this document is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or performance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep
3. Figure 38 Remove upper pair O rings only when replacing filter 7 Remove the two aluminum plugs from the bottom of the new filter Figure 39 Figure 39 Aluminum plugs removed from bottom of the new filter 8 Place the knurled or plastic ring nut over the filter then put the filter on top of the connecting unit it will only fit one way due to the alignment pin 9 Tighten the knurled or plastic ring nut while gently pressing down on the filter let the ring pull the filter onto the connecting unit 10 Carefully check the connections for leaks See Checking for Leaks on page 44 for more information Treat used filters as chemical waste and dispose of them according to local policy User Guide 43 Using the Gas Clean Filter System Checking for Leaks 44 During leak free operation the filter indicator should not change color for several months depending on the quality of your gas If you notice a color change in your filter s indicating material immediately following installation this indicates a gas leak in your system or poor gas quality Take note whether the color change occurred from the top down or from the bottom up and refer to one of the following sections e Indicator changes color from the top down on page 44 e Indicator changes color from the bottom up on page 45 Indicator changes color from the top down CAUTION If the indicating material changed color from the top down see
4. Figure 40 there is a leak upstream of the filter in your gas line or your gas quality is poor Check for leaks at the cylinder regulator and fittings and check your gas quality Filter material Indicating material color change Indicating material original color Figure 40 Indicating a leak upstream from the filter When about 5 of the indicator changes color from the top down this indicates that the entire filter is consumed and needs to be replaced User Guide User Guide Using the Gas Clean Filter System Indicator changes color from the bottom up If your filter s indicator changes color from the bottom up shortly after installation see Figure 41 this indicates a leak downstream of the filter in your gas line Check for leaks between the filter and your instrument Filter material Indicating material original color Indicating material color change Figure 41 Indicating a leak downstream from the filter If the entire indicator has not changed color from the bottom up the filter is not consumed and is still usable see Figure 41 45 Using the Gas Clean Filter System Replacement Parts 46 Table 3 Agilent Gas Clean Filter Starter Kits Description Gas Clean Carrier Gas Kit for 7890 Includes GC MS filter CP17973 a 7890 GC mounting bracket and a single bracket connecting unit Agilent Gas Clean FID Filter kit Includes a 4 position 1 8 in connecting unit and two Charcoal
5. connecting unit 1 8 in CP1 985 1 position stainless steel connecting unit 1 4 in CP7980P4 1 position stainless steel connecting unit 1 8 in CP 988P8 1 position stainless steel connecting unit 3 mm CP7988P3 1 position stainless steel connecting unit 6 mm CP7980P6 1 position 7890 GC bracket connecting unit CP742950 for bracket 5003 1356 Table 5 Replacement Gas Clean Filters Gas Clean Filters Part No Agilent Gas Clean CO Filter CP1 969 Agilent Gas Clean Oxygen Filter CP1 970 Agilent Gas Clean Moisture Filter CP1 971 Agilent Gas Clean Process Moisture Filter CP1 971P Agilent Gas Clean Charcoal Filter CP1 972 Agilent Gas Clean Filter GC MS CP1 973 User Guide 47 Using the Gas Clean Filter System 48 Table 6 Accessories and Fittings Gas Clean Filters Wall mounting bracket for connecting units CP7980 and CP 988 7890 GC mounting bracket for bracket connecting unit CP742950 Ring nut connecting unit Flush head for connecting unit Male connector 1 4 in with dust filter Male connector 1 8 in with dust filter O rings two sets Male connector stainless steel 1 4 in with dust filter Male connector stainless steel 1 8 in with dust filter Male connector stainless steel 3 mm with dust filter Male connector stainless steel 6 mm with dust filter Part No CP7981 9003 1356 5043 0403 CP7987 CP7986 CP82117 CP7983 CP7986SS CP82117SS CP8211 7SS3 CP7986SS6 User Guide fee Agilent Technolog
6. in the wall mounting bracket as a guide Lay the mounting bracket down on a flat surface 3 Using a power drill with a 5 mm od drill bit drill about 5 cm into the wall in both locations Wipe away any excess dust and residue 4 If required install the supplied drywall anchors into the drilled holes and make sure each anchor is flush against the wall s edge Figure 4 Figure 4 Plastic drywall anchors installed in wall 14 User Guide User Guide Using the Gas Clean Filter System b Hold the wall mounting bracket in place against the wall using one hand then use your other hand to install each screw into the wall or drywall anchor Figure 5 Finger tighten the screws as far as possible and then use a screwdriver to complete the screw installation The wall mounting bracket should rest flush against the wall Figure 5 Installing the wall mounting bracket 15 Using the Gas Clean Filter System 6 The connecting unit supports gas connections on the base plate edge for surface mounting and from below when mounting the connecting unit against a wall The connecting unit ships from the factory with the gas connections installed on the edge In this step the standard connecting unit is shown Steps are similar for all connecting unit types You can optionally change the gas inlet outlet locations to the bottom of the connecting unit as follows a Using a 5 mm hex wrench remove the two plugs on the underside of the c
7. to install your connecting unit to a wall skip to Installing on a wall on page 13 e If you have the Gas Clean Carrier Gas Kit for 7890 CP17988 and wish to install the connecting unit to the back of a 7890 GC skip to Installing the Gas Clean Carrier Gas Kit for 7890 on page 20 Installing on a laboratory bench top You can install the connecting unit onto the laboratory bench top using two screws not supplied Gather the following e Screws 2 at least 25 mm long and less than 5 mm od not supplied e Screw driver or power drill Using the Gas Clean Filter System 12 To install the connecting unit to the laboratory bench top 1 Remove the two black plastic caps by pushing a thin narrow object such as a paper clip from the bottom of the connecting unit into the underside of the caps until they pop out Figure 2 Figure 2 Removing the plastic caps from the connecting unit 2 Determine the best location on your laboratory bench top to install the connecting unit and filter Make sure the filter s indicator is clearly visible so that exhausted filters can be easily identified Make sure you have ample space above the bench top and connecting unit for installation and removal of the filter Make sure the gas lines reach the location and will not interfere with other activities in the chosen installation location Check that the mounting screws will not penetrate any dangerous objects such
8. Filter System About the Gas Clean Filter System The Agilent Gas Clean Filter system delivers high purity gases to your analytical instruments reducing the risk of column damage sensitivity loss and instrument downtime The filters are designed for use with the GC GC MS ICP OES ICP MS LC MS and any other analysis instrument using carrier gas Six filters are available including CO oxygen moisture and organics trap charcoal Components The Gas Clean Filter System consists of a connecting unit and filter Figure 1 The connecting unit is equipped with inlet and outlet connectors for the gas lines and two needle like valves that automatically start the flow of gas once a filter is attached The filters come filled with dry nitrogen and are made from a heavy walled polycarbonate sealed at the base with PTFE When installed onto the connecting unit the needle like valves puncture the PTFE seals and allow gas to flow through the filter Optimum performance of this unit can be guaranteed only by using Agilent Gas Clean Filters ASN 340438 dv 310N34 Outlet connector Inlet connector Figure 1 The components of the Gas Clean Filter System connecting units vary in appearance but perform the same functionality 4 User Guide User Guide Features Filter types Using the Gas Clean Filter System The Gas Clean Filter System delivers the following features and benefits Cleaner gas lon
9. an MS detector purge the filter for at least 60 minutes This will flush the filter of dry nitrogen so that it does not appear as a background ion in your MS analysis For all other filter and detector combinations purge for 4 minutes 8 Restore to normal operating supply pressure and method settings Remember to keep at a minimum supply pressure of 2 bar 30 psi User Guide User Guide Using the Gas Clean Filter System Bracket connecting unit To install the GC MS filter on the Gas Clean Carrier Gas Kit for 7890 bracket connecting unit 1 Turn the ball valve to the on position 2 Unscrew and remove the plastic ring nut from the top of the bracket connecting unit Figure 26 Plastic ring nut Bracket connecting unit Figure 26 Remove the plastic ring nut from the bracket connecting unit 31 Using the Gas Clean Filter System 32 3 Flush the gas line of oxygen and moisture If available use the optional flush head part number CP7987 to flush the gas line Figure 27 Place the flush head over the valves and alignment pin and push down until it rests on the base of the connecting unit Install the knurled ring to hold it in place Flush head lt j SO Ball valve on HN ss f Figure 27 Using the flush head to flush the gas line of oxygen and moisture User Guide Using the Gas Clean Filter System If you do not have the flush head use a small object or your finger to depress the
10. arate agreement shall control Safety Notices CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met Agilent Gas Clean Filter System User Manual Using the Gas Clean Filter System About the Gas Clean Filter System 4 Components 4 Features 5 Filter types 5 Safety Information 9 General gas safety 9 Cleaning 9 Recycling the product 9 Installation 10 Before you begin 10 Prepare your instrument 10 Install the connecting unit 11 Connect the gas lines 23 Install the filter to the connecting unit 26 Install a two or four position connecting unit 37 Gas Flow ina Gas Clean Filter 39 Replacing the Gas Clean Filter 40 When to replace the Gas Clean Filter 40 To replace the Gas Clean Filter 42 Checking for Leaks 44 Indicator changes color from the top down 44 Indicator changes color from the bottom up 45 Replacement Parts 46 ee Agilent Technologies Using the Gas Clean
11. as Clean Filter System 20 Installing the Gas Clean Carrier Gas Kit for 7890 Gather the following e T 10 Torx driver e T 20 Torx driver e Gas Clean Carrier Gas Kit for 7890 CP17988 To install the bracket and bracket connecting unit to the back of a 7890 GC 1 Place the bracket 5003 1356 against the back of the 7890 GC in the location shown in Figure 11 then align the screw holes as shown in Figure 12 UN I Ani I a yy 4 4 o y du d LE Il UT y at dlia is a ay DAT git at FT h A i W A CL ya i HN i 4 Tih ps ti at Mix i WHR k CREER 5 Ving by pals Ordi td y AI ANIN p LE Figure 11 Location on back of 7890 GC to install bracket Screw holes Figure 12 Screw hole locations on back of 7890 GC and bracket User Guide User Guide Using the Gas Clean Filter System 2 Using a T 10 Torx driver install the four T 10 screws to secure the bracket to the GC See Figure 13 Figure 13 Bracket 5003 1356 installed to 7890 GC 3 If you wish to run the inlet and outlet plugs from the bottom of the bracket connecting unit see step 6 on page 16 before installing the bracket connecting unit to the bracket 21 Using the Gas Clean Filter System 22 4 Install the bracket connecting unit to the bracket using the supplied T 20 Torx screws If you have an ALS installed with your system install the bracket connecting unit to the top of the bracket Figure 14 F
12. as gas and power lines 3 Place the connecting unit in the chosen location and use a screw driver or power drill to install the screws into the bench top through the two openings on the top of the connecting unit 4 Replace the black plastic caps on the connecting unit to cover the two screw hole openings User Guide User Guide Using the Gas Clean Filter System Installing on a wall This option is only available for a single filter connecting unit using the optional wall mounting bracket Gather the following e Wall mounting bracket kit CP7981 e Flathead screw driver e Hex wrench 4 mm e Power drill with 5 mm od drill bit e Pencil To install the wall mounting bracket 1 Determine the location on the wall where you wish to install the wall mounting bracket Make sure you have ample space above the mounting bracket with connecting unit installed for installation removal of the filter Make sure the gas lines reach the location and will not interfere with other activities in the chosen installation location Check that the mounting screws will not penetrate any dangerous objects such as gas and power lines once installed 13 Using the Gas Clean Filter System 2 Hold the wall mounting bracket against the wall in the location that you plan to install it and use a pencil to mark the drilling location for the screw holes Figure 3 Figure 3 Mark the drilling locations on the wall using the screw holes
13. ay dust and residue using a lint free cloth Once the filter is consumed the filter and filter material cannot be replenished or reused Recycling the product When filters are replaced they must be treated as chemical waste and disposed of according to local policy Using the Gas Clean Filter System Installation Before you begin Be sure to choose a centralized installation location where all instruments are easily reachable and where the filter s indicating material is always visible Gas Clean Filter connecting units are available for both 1 4 inch and 1 8 inch gas lines Be sure you have selected the appropriate connecting unit to use with your lab setup Prepare your instrument Prepare your instrument by doing the following 1 Lower any heated zone temperatures on your instrument to less than 100 C 2 Set any purge flows on your instrument to 400 mL min 3 If your system pressure is higher than 7 bar 100 psi reduce the pressure 10 User Guide User Guide Using the Gas Clean Filter System Install the connecting unit The connecting unit can be mounted on a laboratory bench top affixed to the wall with optional wall mounting bracket for the single filter connecting unit or mounted to the back of a 7890 GC with the Gas Clean Carrier Gas Kit for 7890 e If you wish to install your connecting until to a laboratory bench top see Installing on a laboratory bench top below e If you wish
14. d provides ultimate GC column protection Table 1 on page 6 shows recommended filter connection diagrams for common instrument configurations Using the Gas Clean Filter System Table 1 Connection diagrams for common detectors Detector Connection Diagram ECD Carrier Gas Electron Capture Detector Make Up Gas Anode Purge Gas a ECD FID Carrier Gas Flame lonization Detector Carrier Gas Make Up Gas Hydrogen gt Charcoal Filter Ai Charcoal Filter FID Carrier Gas gt GC MS Er gt Flame lonization Detector Carrier Gas differs Make UpGas Charcoal Filter from Make Up Gas Hydrogen Charcoal Filter O mt MN Charcoal Filter Carrier Gas FPD Flame Photometric Detector Hydrogen gt Charcoal Filter Flame 1 PFPD p Charcoal Filter Pulsed Flame Photometric EED Detector Flame 2 6 User Guide Using the Gas Clean Filter System Table 1 Connection diagrams for common detectors continued Detector Connection Diagram MS ITD MSD Carrier Gas gt GC MS iter Com lon Trap Detector Mass Selective Detector MS Carrier Gas MS NPD PND Carrier Gas Nitrogen Phosphorous Detector Make Up Gas TID TSD Hydrogen gt Charcoal Filter Thermionic Detector o TSD Ai Charcoal Filter Carrier Gas Make Up Gas TCD Carrier Gas Thermal Conductivity Detector Refere
15. e connecting unit CAUTION Wear clean lint free gloves to prevent contamination of parts with dirt and skin oils If you have the Gas Clean Carrier Gas Kit for 7890 skip to Bracket connecting unit on page 31 Standard connecting units To install the filter on a standard connecting unit 1 Unscrew the knurled ring and remove the red plastic dust cap from the top of the connecting unit Figure 20 Optimum performance of this unit can be guaranteed only by using Agilent Gas Clean Filters Red plastic dust cap 3SN 340138 dv9 SAOWSY du LES P 3 Sint 1 j ali a s i LLAK 7 rs r d vert a gt nuriea ring w ty 7 t hee lt p panna H 2 ois Figure 20 Remove the red plastic dust cap 26 User Guide User Guide Using the Gas Clean Filter System 2 Flush the gas line of oxygen and moisture If available use the optional flush head part number CP7987 to flush the gas line Figure 21 Place the flush head over the valves and alignment pin and push down until it rests on the base of the connecting unit Install the knurled ring to hold it in place gt Flush head Figure 21 Using the flush head to flush the gas line of oxygen and moisture 21 Using the Gas Clean Filter System If you do not have the flush head use a small object or your finger to depress the inlet valve The inlet valve has an O ring positioned at the top of th
16. e cylinder as shown in Figure 22 CR 1 NS O ring A4 Z Inlet valve Outlet valve Figure 22 Depress the inlet valve to flush the gas line of oxygen and moisture Flush the gas lines for at least several minutes to ensure the gas lines are free of oxygen and moisture 28 User Guide Using the Gas Clean Filter System 3 Remove the filter from the packaging then remove the two aluminum plugs from the bottom of the filter Figure 23 Figure 23 Remove the aluminum plugs from the filter 4 Place the knurled ring over the filter then place the filter on top of the connecting unit it will only fit one way due to the alignment pin shown in Figure 24 Be careful to not damage the connecting unit and filter components by forcing an incorrect filter orientation Alignment pin CRE Agilent Technologies Gas Clean Filter System Figure 24 Alignment pin User Guide 29 Using the Gas Clean Filter System 30 5 Tighten the knurled ring while gently pressing down on the filter Let the knurled ring pull the filter onto the connecting unit as it is tightened Figure 25 Knurled ring VA L ut 14 046 a on eer ry coe Figure 25 Tighten the knurled ring to secure the filter to the connecting unit 6 Allow the filter to pressurize for 3 minutes 7 Flush the filter Set the instrument split vent flow purge flow to 400 mL min then If using a Moisture Filter in combination with
17. each type of filter See Table 2 for a description of each filter indicator color and consumed color change Table 2 Indicating material color description Filter type Original color Consumed color Oxygen Filter Green Gray Moisture Filter Green Pale brown Process Moisture Filter Charcoal Filter No indicator No indicator GC MS Filter Oxygen Green Gray Moisture Green Pale brown CO Filter White Violet See To replace the Gas Clean Filter on page 42 for more information 41 Using the Gas Clean Filter System To replace the Gas Clean Filter This procedure shows the standard connecting unit in the examples Steps are similar for all connecting unit types To replace the Gas Clean Filter 1 Lower any heated zone temperatures on your instrument to less than 100 C Set any split vent flows purge flows on your instrument to 400 mL min If your system pressure is higher than 7 bar 100 psi reduce the pressure to a pressure no lower than 2 bar 30 psi to ensure easy removal of the saturated filter Remove the saturated filter by unscrewing the knurled or plastic ring nut that secures the filter to the connecting unit Figure 35 Figure 37 Unscrew the knurled or plastic ring nut 5 42 Remove the new filter and O rings from the packaging User Guide Using the Gas Clean Filter System 6 Remove the old upper set of O rings using the supplied tool and replace with new O rings Figure 38
18. filters one Oxygen filter and one Moisture filter Gas Clean Filter Kit 1 8 in Includes a 4 position 1 4 in connecting unit and two Charcoal filters one Oxygen filter and one Moisture filter Agilent Gas Clean GC MS Filter kit 1 8 in Includes a 1 position connecting unit 1 8 in and two GC MS filters Agilent Gas Clean GC MS Filter kit 1 4 in Includes a 1 position connecting unit 1 4 in and two GC MS filters Agilent Gas Clean GC MS Filter Installation kit Includes 1 m copper tubing CP1 976 two nuts and two ferrules 1 8 in Agilent Gas Clean CO kit Includes 2 position 1 4 in connecting unit and CO and moisture filters Agilent Gas Clean CO kit Includes 2 position 1 8 in connecting unit and CO and moisture filters TCD Filter Kit Includes a 2 position 1 8 in connecting unit one Oxygen filter and one Moisture filter GC Installation Kit Includes CP 736530 and many useful fittings and accessories Part No CP17 7988 CP7995 CP736530 CP17976 CP17977 CP17978 CP17982 CP1 983 CP738408 19199N User Guide Using the Gas Clean Filter System Table 4 Connecting Units Description Part No 1 position connecting unit 1 4 in CP7980 1 position connecting unit 1 8 in CP7988 2 position connecting unit 1 4 in CP738406 2 position connecting unit 1 8 in CP738407 4 position connecting unit 1 4 in CP7989 4 position connecting unit 1 8 in CP736520 High flow connecting unit 1 4 in CP1 984 High flow
19. ger instrument life greater sensitivity higher data accuracy and overall long term stability for your instruments and analyses A high flow connecting unit that handles flow rates up to 20 L min for collision gas applications and supply gas for ICP MS ICP OES and LC MS A fast stabilizing and absorbent filter material Filter housing constructed with a transparent and virtually unbreakable heavy walled polycarbonate material The ability to change the Gas Clean Filter without tools or gas shut off Each Gas Clean Filter type is designed to filter out a specific impurity that may exist in the gas supply The following filter types are available Carbon Dioxide Eliminates CO from supply gas to the Total Organic Carbon TOC analyzer and improves sensitivity and accuracy in TOC analysis Oxygen Prevents oxidation of the GC column septum liner and glass wool Moisture Delivers faster stabilization times for increased GC productivity and prevents hydrolization damage to the stationary phase column liner glass wool or septum in the GC Process Moisture Prevents oxidation of GC components and is safe to use with acetylene in process GC applications Charcoal Removes organic compounds and ensures correct performance of FID detectors in the GC GC MS Delivers faster stabilization times for increased GC productivity removes oxygen moisture and hydrocarbons from the carrier gas for MS applications an
20. ies Agilent Technologies Inc 2013 5973 1528
21. igure 14 Bracket connecting unit installed on the bracket top for ALS and general configurations If you have a PAL Auto Sampler installed with your system install the bracket connecting unit to the underside of the bracket Figure 15 Figure 15 Bracket connecting unit installed on underside of bracket for PAL Auto Sampler configuration User Guide Using the Gas Clean Filter System Connect the gas lines Before starting make sure you have enough gas line tubing to reach the area where you wish to mount the Gas Clean Filter system For best results use pre cleaned gas lines Gather the following e Swagelok nuts included with the connecting unit assembly e Front and back ferrules included with the connecting unit assembly e Wrench 7 16 inch for 1 8 inch nuts or 9 16 inch for 1 4 inch nuts e Pre cleaned tubing e Ball valve 0100 2144 required for the Gas Clean Carrier Gas Kit for 7890 CP17988 e Electronic leak detector such as the Agilent G3388B Handheld Electronic Gas Leak Detector To connect the gas lines to the connecting unit 1 Place a Swagelok nut back ferrule and front ferrule to the tubing as shown in Figure 16 Front ferrule Important Back TETTING The narrow end of the Nut back ferrule fits into the rear of the front ferrule Tubing Figure 16 Swagelok nuts and ferrules User Guide 23 Using the Gas Clean Filter System 24 2 Push the tubing towards the base until it re
22. inlet valve The inlet valve has an O ring positioned at the top of the cylinder as shown in Figure 28 CR 1 NS O ring A4 Z Inlet valve Outlet valve Figure 28 Depress the inlet valve to flush the gas line of oxygen and moisture Flush the gas lines for at least several minutes to ensure the gas lines are free of oxygen and moisture User Guide 33 Using the Gas Clean Filter System 34 4 Remove the GC MS filter from the packaging then remove the two aluminum plugs from the bottom of the filter Figure 29 Aluminum plugs Figure 29 Remove the aluminum plugs from the GC MS filter 5 Place the plastic ring nut over the GC MS filter then place the filter on top of the bracket connecting unit it will only fit one way due to the alignment pin shown in Figure 30 Be careful to not damage the bracket connecting unit and filter components by forcing an incorrect filter orientation SL Alignment pin Figure 30 Alignment pin User Guide Using the Gas Clean Filter System 6 Tighten the plastic ring nut while gently pressing down on the filter Let the plastic ring nut pull the GC MS filter onto the bracket connecting unit as it is tightened Figure 31 Figure 31 GC MS filter installed to the bracket connecting unit User Guide 35 Using the Gas Clean Filter System 36 Allow the GC MS filter to pressurize for 3 minutes Flush the filter Set the instrument split vent flow
23. nce Channel Make Up Gas __ ICD if necessary User Guide 7 Using the Gas Clean Filter System Table 1 Detector ICP 0ES ICP MS Inductive Coupled Plasma Optical Emission Spectrometry Mass Spectrometry Plasma Gas Nebulizer Gas ICP 0ES Inductive Coupled Plasma Optical Emission Different Optic Flush Gas Total Organic Carbon TOC Analyzer Zero Air Generator LC MS Mass Spectrometry Connection diagrams for common detectors continued Connection Diagram Feu 7 ICP MS Supply GAS ICP OES Supply Gas E ICP OES High Flow Base Plate Optic Flush Gas Carrier Gas TOC Analyzer Zero Air Generator Supply Gas LC MS High Flow Base Plate Contact your local Agilent sales representative for the filter sets applicable to your instrument configuration User Guide Safety Information User Guide General gas safety Cleaning Using the Gas Clean Filter System Wear eye protection when using compressed gas to avoid eye injury Fasten all compressed gas cylinders securely to an immovable structure or permanent wall Store and handle compressed gases in accordance with relevant safety codes Do not put gas cylinders in the path of a hot air vent including a GC oven exhaust Perform periodic leak checks on supply lines fittings and pneumatic plumbing to prevent a potentially hazardous condition Wipe aw
24. onnecting unit Figure 6 Outlet fitting Inlet fitting Plugs Figure 6 Plugs and inlet outlet fittings on the connecting unit 16 User Guide User Guide Using the Gas Clean Filter System b Using a 1 2 inch wrench remove the inlet and outlet fittings on the end of the connecting unit Figure 6 c Install the plugs on the end of the connecting unit using a 5 mm hex wrench Figure 7 gt J gt beprer RRN X ARS gt S 22 a 38 lt K k TEmo aion ES Figure 7 Plugs installed on the end of the connecting unit 17 Using the Gas Clean Filter System d Install the inlet and outlet fittings on the underside of the connecting unit using a 1 2 inch wrench Figure 8 Outlet fitting Inlet fitting Figure 8 Inlet and outlet fittings installed on the underside of the connecting unit 18 User Guide Using the Gas Clean Filter System 7 Install the connecting unit to the wall mounting bracket a Depending on the inlet outlet fitting orientation on the connecting unit align the connecting unit to the bracket as shown in Figure 9 Figure 9 Connecting unit orientations on wall mounting bracket b Using your hand install the hex screws from the bottom up until they are finger tight Figure 10 Figure 10 Hex screws installed c Use a 4 mm hex wrench to tighten the screws The connecting unit should be tight against the wall mounting bracket User Guide 19 Using the G
25. purge flow to 400 mL min then If using a Moisture Filter in combination with an MS detector purge the filter for at least 60 minutes This will flush the filter of dry nitrogen so that it does not appear as a background ion in your MS analysis For all other filter and detector combinations purge for 4 minutes Restore to normal operating supply pressure and method settings Remember to keep at a minimum supply pressure of 2 bar 80 psi User Guide User Guide Using the Gas Clean Filter System Install a two or four position connecting unit The steps for installing a two or four position connecting unit are similar to the steps for the single filter connecting unit Refer to the previous sections in this chapter for details Installation on page 10 Two position connecting unit When installing the two position connecting unit refer to Figure 32 for gas line and filter installation locations Oxygen Moisture Figure 32 Two position connecting unit 37 Using the Gas Clean Filter System 38 Four position connecting unit When installing the four position connecting unit refer to Figure 33 and Figure 34 for common gas line and filter configurations Instrument Air Carrier Gas Carrier Gas Hydrogen In Out In Out In Out Charcoal Oxygen Moisture Charcoal Figure 33 Configuration 1 Four position connecting unit Instrument Air Carrier Gas Hydrogen Makeup Gas In Out In Out In Out In Out
26. sts firmly against the shoulder in the fitting and make sure that the front ferrule is touching the fitting Slide the Swagelok nut over the ferrule and thread it onto the fitting Figure 17 Nut and ferrules Fitting Tubing Figure 17 Assemble the fitting 3 Push the tube fully into the fitting then withdraw it approximately 1 to 2 mm see Figure 18 Front Nut ferrule Insert tubing fully Back ferrule Withdraw tubing 1 2 mm Tighten nut Figure 18 Insert the tubing 4 Finger tighten the nut Then use a wrench to tighten the nut 3 4 turn for 1 8 inch tubing User Guide User Guide Using the Gas Clean Filter System 5 If you have the Gas Clean Carrier Gas Kit for 7890 CP17988 install a ball valve immediately following the outlet connection on the bracket connecting unit as shown in Figure 19 Outlet Ball valve A 7 Bracket connecting unit Figure 19 Ball valve installed following the outlet connection on the bracket connecting unit A ball valve installation is optional for standard connecting units 6 Set the gas line pressure to a value between 2 bar 30 psi and 4 bar 60 psi when installing the filter to the connecting unit Be sure to keep the pressure above 2 bar 80 psi so that air does not enter the filter 7 Check all connections for leaks using the leak detector 25 Using the Gas Clean Filter System Install the filter to th
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