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942 Extension Module Vario

942 Extension Module Vario HPG

Manual

8.942.8002EN / 2020-03-17

Содержание 2.942.0040

Страница 1: ...942 Extension Module Vario 942 Extension Module Vario HPG Manual 8 942 8002EN 2020 03 17...

Страница 2: ......

Страница 3: ...AG CH 9100 Herisau Switzerland Phone 41 71 353 85 85 Fax 41 71 353 89 01 info metrohm com www metrohm com 942 Extension Module Vario 942 Extension Module Vario HPG 2 942 0040 Manual 8 942 8002EN 2020...

Страница 4: ...echcom metrohm com This documentation is protected by copyright All rights reserved This documentation has been prepared with great care However errors can never be entirely ruled out Please send comm...

Страница 5: ...1 Front 6 2 2 Rear 7 2 3 Extension Module and 940 Professional IC Vario 7 3 Installation 9 3 1 Installation diagram 9 3 2 Setting up the instrument 10 3 2 1 Packaging 10 3 2 2 Checks 10 3 2 3 Location...

Страница 6: ...e eluent degasser 27 5 4 Notes on operating the high pressure pump 28 5 5 Servicing the high pressure pump 29 5 6 Servicing the inline filter 42 5 7 Servicing the pulsation absorber 45 6 Troubleshooti...

Страница 7: ...g the eluent bottle cap 16 Figure 10 Installing tubing weighting and aspiration filter 18 Figure 11 Connecting the vacuum pump 21 Figure 12 High pressure pump with purge valve 22 Figure 13 Pulsation a...

Страница 8: ......

Страница 9: ...tically detects the 942 Extension Module Vario and checks its functional capabil ity It controls and monitors the entire IC system including all connected instruments it evaluates the measured data an...

Страница 10: ...and connection to the IC instrument as well as the installation operation and maintenance of individual modules Techni cal specifications troubleshooting and information concerning scope of delivery a...

Страница 11: ...t instrument parts WARNING This symbol draws attention to a possible biological hazard CAUTION This symbol draws attention to possible damage to instruments or instrument parts NOTE This symbol highli...

Страница 12: ...lso a risk of serious injury if live components are touched There are no parts inside the housing which can be serviced or replaced by the user Supply voltage WARNING An incorrect supply voltage can d...

Страница 13: ...All relevant safety measures are to be observed when working with flammable solvents and chemicals Set up the instrument in a well ventilated location e g fume cup board Keep all sources of flame far...

Страница 14: ...2 1 Front Figure 1 Front 1 High pressure pump See Chapter 3 7 2 Eluent degasser See Chapter 3 6 3 Inline filter See Chapter 3 8 4 Pulsation absorber See Chapter 3 9 5 Purge valve See Chapter 3 7 6 Co...

Страница 15: ...ber of the IC instrument 2 3 Extension Module and 940 Professional IC Vario The 942 Extension Module Vario units are fitted directly to the 940 Profes sional IC Vario and connected to it via the conne...

Страница 16: ...modules must not contain more than 4 identical components this means that A maximum of 4 high pressure pumps A maximum of 4 peristaltic pumps A maximum of 4 injection valves A maximum of 4 suppressors...

Страница 17: ...ion Module Vario HPG used as part of a high pressure gra dient system The graphic arrangement of the modules corresponds to the front of the Extension Module The liquid containers are not shown in the...

Страница 18: ...r operation and free of vibrations and which provides protection against corrosive atmosphere and contamination by chemicals The instrument should be protected against excessive temperature fluctua ti...

Страница 19: ...tacks We recommend that a base tray and bot tle holder be mounted for each stack of IC instruments The bottle holder and base tray must be removed or set up if one of the following instruments is to b...

Страница 20: ...es from the capillary ducts before you remove the base tray Removing the base tray Prerequisites The instrument is switched off The bottle holder is cleared All of the cable connections on the rear ha...

Страница 21: ...its side and the bottom surface is visible Accessories 3 mm hex key 6 2621 100 1 3 2 Figure 6 Mounting the base tray 1 Mount the base tray in such a way that the openings in the base tray match exactl...

Страница 22: ...isconnected from the drainage tubing connection of the bottle holder The capillaries are removed from the guide ducts between the instru ment and the bottle holder Accessories 3 mm hex key 6 2621 100...

Страница 23: ...ment 2 Insert the 2 cylinder screws and tighten them with the 3 mm hex key 3 Insert both covering stoppers After attaching the bottle holder restore all connections that were loos ened at the beginnin...

Страница 24: ...tle cap an M6 tubing nipple an M8 tubing nipple two O rings and an M6 and M8 threaded stopper The tubing adapter for aspiration filter accessory set 6 2744 210 This accessory set contains a filter hol...

Страница 25: ...Always wear gloves when handling the aspiration filter In order to avoid air bubbles after the installation of the aspiration fil ter we recommend pre rinsing the aspiration filter with water or elu e...

Страница 26: ...uent bottle Insert the eluent aspiration tubing into the eluent bottle 6 1608 070 Tighten the bottle cap on the eluent bottle Adjust the length of the eluent aspiration tubing so that the aspi ration...

Страница 27: ...eluents or eluents with a low buffer capacity first a little cotton then with CO2 adsorber material For all other eluents only with cotton Remove the plastic cover from the large opening of the adsor...

Страница 28: ...der for the eluent degasser to be used the Extension Module has to be connected to the IC instrument s vacuum pump Accessories For this step you need the following accessories FEP tubing 6 1805 060 Co...

Страница 29: ...ssional IC Vario 4 FEP tubing 6 1805 050 Connect to the to Vacuum connector on the second 942 Extension Module Vario 1 Connect one end of the FEP tubing 6 1805 050 11 2 to the to Vacuum connector of t...

Страница 30: ...he high pressure pump consists of The pump head which pumps the eluent through the system The purge valve used for bleeding the pump head Figure 12 High pressure pump with purge valve 1 Pump head 2 Pu...

Страница 31: ...rfering pulsations during highly sensitive measurements Figure 13 Pulsation absorber 1 Connection capillary Connection to inline filter 2 PEEK pressure screws short 6 2744 070 3 Pulsation absorber 6 2...

Страница 32: ...t Connecting the Extension Module to the IC instrument 1 Plug the connecting cable 6 2156 060 into the In connection socket on the Extension Module and tighten it in place 2 Plug the other end of the...

Страница 33: ...ons must be met before initial start up The eluent bottle is filled and connected The 942 Extension Module Vario HPG is connected to the 940 Profes sional IC Vario The high pressure pump has to be dea...

Страница 34: ...ts e g acetone Avoid condensation in the eluent bottle Drop formation can change the concentration ratio in the eluent In the case of very sensitive measurements we recommend that the eluent be stirre...

Страница 35: ...when changing the eluent Immedi ately successive solutions must be miscible If the system must be rinsed with organic solvents several solvents with rising or falling lipophilicity must be used NOTIC...

Страница 36: ...the eluent through a filter with a pore size of 0 45 m and aspirating it via an aspiration filter 6 2821 090 Ensure that no precipitates can form when changing the eluent Salt crystals between the pi...

Страница 37: ...valve holder 3 Fastening screw 4 Pump head 5 Inlet valve holder 6 Pressure screw short 6 2744 070 Fastened to the inlet valve holder 7 Eluent aspiration tubing connector Consists of a coupling with a...

Страница 38: ...ead 1 Service the inlet valve and the outlet valve 2 Remove the pump head 3 Service both pistons one after the other a Remove piston b Dismantle the piston c Replace the piston seal d Replace the zirc...

Страница 39: ...outlet valve from the outlet valve holder 3 2 Cleaning the outlet valve Start by rinsing the outlet valve in the direction of eluent flow using a wash bottle filled with ultrapure water RBS solution...

Страница 40: ...ad Insert the outlet valve into the outlet valve holder the seal must be visible 1 Screw the outlet valve holder up into the pump head 2 and tighten it firmly by hand and then retighten it one additio...

Страница 41: ...nlet valve from the inlet valve holder 3 2 Cleaning the inlet valve Start by rinsing the inlet valve in the direction of eluent flow using a wash bottle filled with ultrapure water RBS solution or ace...

Страница 42: ...pump head 2 and tighten it firmly by hand and then retighten it one additional turn using the adjustable wrench 3 Refasten the connection capillary to the connection of the eluent aspiration tubing 1...

Страница 43: ...e the pressure screw on the pump head s outlet 14 8 3 Loosen and remove the four fastening screws 14 3 using the hex key 4 Remove the pump head 14 4 Servicing the piston Carry out the following work o...

Страница 44: ...824 170 7 Inlet valve holder 8 Zirconium oxide piston 6 2824 070 9 Piston cartridge Accessories For this step you need the following accessories Adjustable wrench 6 2621 000 Tool for piston seals 6 26...

Страница 45: ...d then unscrew it from the pump head by hand Set it aside 2 Removing the backup ring Shake the backup ring 17 2 out of the piston opening Set it aside 3 Removing the old piston seal CAUTION Screwing t...

Страница 46: ...rting the new piston seal 2 Piston seal 6 2741 020 5 Inserting the new piston seal into the pump head Guide the sleeve 16 2 of the tool for the piston seal with inserted piston seal into the pump head...

Страница 47: ...m oxide piston and place it on a paper towel Remove the spring retainer the spring and the inner plastic sleeve from the piston cartridge and lay them next to the piston Place the backup ring you put...

Страница 48: ...leeve the spring and the spring retainer into the piston cartridge Slide the zirconium oxide piston carefully into the piston cartridge until its tip emerges from the small opening of the piston car t...

Страница 49: ...wrong way as it has fastening bolts with different bore hole depths i e one fastening bolt is longer than all others The bore hole with the greatest depth must therefore be aligned with the longest bo...

Страница 50: ...let 2 5 6 Servicing the inline filter NOTICE You can find a video sequence for this task in the Multimedia Guide IC Maintenance or on the Internet at http ic help metrohm com Maintenance interval The...

Страница 51: ...r Part of the acces sories 6 2821 120 3 Filter 6 2821 130 Pack contains 10 pieces 1 Shutting off the flow Switch off the high pressure pump in the software 2 Removing the inline filter Unscrew both pr...

Страница 52: ...he filter screw 20 2 back into the filter housing 20 1 and tighten by hand Then use two adjustable wrenches 6 2621 000 to tighten it slightly 3 Remounting the inline filter Screw pressure screws back...

Страница 53: ...5 Operation and maintenance 942 Extension Module Vario HPG 2 942 0040 45 5 7 Servicing the pulsation absorber CAUTION The pulsation absorber is maintenance free and must not be opened...

Страница 54: ...the elu ent Check the quality of the chemicals and the water High pressure pump Defective piston seals Replace the piston seals see chapter 5 5 page 29 The pulsation absorber is not connected or is de...

Страница 55: ...heck the eluent path and eliminate the block age The eluent contains gas bubbles Deaerate the high pressure pump Vacuum is not being built Eluent degasser Vacuum connection on the rear of the instrume...

Страница 56: ...bient tempera ture 25 C 3 C Instrument status Operating 40 minutes in equilibrium 7 2 Ambient conditions Nominal function range 5 45 C at max 80 relative humidity non condensing Storage 5 45 C 7 3 Hou...

Страница 57: ...o restriction except PFC Time to establish vacuum 60 s 7 6 Interfaces In 1 15 pin D sub plug male Connection to the ion chromatograph or another Extension Module Out 1 15 pin D sub plug female Connect...

Страница 58: ...m into your Internet browser 2 Enter the article number e g 2 942 0040 into the search field The search result is displayed 3 Click on the product Detailed information regarding the product is shown o...

Страница 59: ...lter Aspiration filter 26 see Inline filter 22 Flow fluctuations 30 Front 6 H High pressure pump Maintenance 29 Protection 11 28 Housing 48 I Inline filter 22 Installation Eluent bottle 16 Pulsation a...

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