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942 Extension Module Vario

942 Extension Module Vario LQH

Manual

8.942.8003EN / 2019-10-31

Содержание 2.942.0070

Страница 1: ...942 Extension Module Vario 942 Extension Module Vario LQH Manual 8 942 8003EN 2019 10 31 ...

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Страница 3: ...m 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 LQH 2 942 0070 Manual 8 942 8003EN 2019 10 31 ...

Страница 4: ...techcom 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 comments regarding possible errors to the address above ...

Страница 5: ...f the instrument 7 2 1 Front 7 2 2 Rear 8 2 3 Extension Module and 940 Professional IC Vario 8 3 Installation 10 3 1 Installation diagram 10 3 2 Setting up the instrument 11 3 2 1 Packaging 11 3 2 2 Checks 11 3 2 3 Location 11 3 3 Base tray and bottle holder 11 3 3 1 Basic information on base tray and bottle holder 11 3 3 2 Mounting base tray and bottle holder optional 12 3 4 Connecting the 10 por...

Страница 6: ...he peristaltic pump 29 6 Troubleshooting 31 6 1 Problems and their solutions 31 7 Mode of operation 32 7 1 10 port valve 32 7 2 Transfer tubing 34 7 3 Peristaltic pump and injection valve 35 8 Technical specifications 37 8 1 Reference conditions 37 8 2 Ambient conditions 37 8 3 Housing 37 8 4 Weight 38 8 5 10 port valve 38 8 6 Peristaltic pump 38 8 7 6 port valve 38 8 8 Interfaces 39 9 Accessories...

Страница 7: ...e 7 Removing the bottle holder 15 Figure 8 Mounting the bottle holder 16 Figure 9 Peristaltic pump 22 Figure 10 6 port valve Positions 23 Figure 11 Pump tubing connection Replacing the filter 30 Figure 12 10 port valve Ports 32 Figure 13 Normal valve switchover and with a secured port 33 Figure 14 Transfer tubing 6 1562 160 34 Figure 15 Measuring the volume Filling the sample loop 35 Figure 16 Mea...

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Страница 9: ...IC instrument If a 942 Extension Module Vario is connected to a 940 Professional IC Vario instrument MagIC Net automatically 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 and manages it in a database The 942 Extension Module Vario LQH consists of the follo...

Страница 10: ...entation carefully before putting the instru ment into operation The documentation contains information and warnings which the user must follow in order to ensure safe operation of the instrument 1 3 1 Content and scope This document describes the 942 Extension Module Vario LQH 2 942 0070 its assembly and connection to the IC instrument as well as the installation operation and maintenance of indi...

Страница 11: ...text parameter in the software File New Menu or menu item Next Button or key WARNING This symbol draws attention to a possible life threat ening hazard or risk of injury WARNING This symbol draws attention to a possible hazard due to electrical current WARNING This symbol draws attention to a possible hazard due to heat or hot instrument parts WARNING This symbol draws attention to a possible biol...

Страница 12: ...safety The electrical safety when working with the instrument is ensured as part of the international standard IEC 61010 WARNING Only personnel qualified by Metrohm are authorized to carry out service work on electronic components WARNING Never open the housing of the instrument The instrument could be damaged by this There is also a risk of serious injury if live components are touched There are ...

Страница 13: ...ols can be used to loosen connections Check the connections regularly for leakage If the instrument is used mainly in unattended operation then weekly inspections are manda tory 1 4 4 Flammable solvents and chemicals WARNING 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 ...

Страница 14: ... instructions 6 942 Extension Module Vario LQH 2 942 0070 More details about the disposal of your old instrument can be obtained from your local authorities from waste disposal companies or from your local dealer ...

Страница 15: ... 2 Overview of the instrument 942 Extension Module Vario LQH 2 942 0070 7 2 Overview of the instrument 2 1 Front Figure 1 Front 1 Peristaltic pump 2 10 port valve 3 Injection valve 4 Standby indicator ...

Страница 16: ...ly to the 940 Profes sional IC Vario and connected to it via the connection cable provided Extension modules have no power supply of their own but rather draw the electricity they require from the instrument to which they are con nected Extension modules can be placed in 3 different ways Installed between the instrument and bottle holder 3 A Installed between the instrument and base tray 3 B Stack...

Страница 17: ...ust 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 MSM incl SPM BUT Only a maximum of 3 degassers And a maximum of 3 CO2 suppressors MCS NOTICE If all four high pressure pumps are being used simultaneously then all of them must not be operating with their max...

Страница 18: ... The graphic arrangement of the modules corresponds to the front of the Extension Module The liquid containers and components of the IC instrument are not shown in the diagram Figure 4 Installation diagram 1 Connection to a Dosino 2 Transfer tubing connection 10 port valve The transfer tubing is connected to the cen tral port of the 10 port valve 3 Sample aspiration capillary 4 Peristaltic pump co...

Страница 19: ...d free of vibrations and which provides protection against corrosive atmosphere and contamination by chemicals The instrument should be protected against excessive temperature fluctua tions and direct sunlight 3 3 Base tray and bottle holder 3 3 1 Basic information on base tray and bottle holder The base tray 6 2061 110 and bottle holder 6 2061 100 protect IC instruments from dust dirt and leaking...

Страница 20: ...nother instrument under the IC instru ment CAUTION Do not pinch capillaries or leak sensor cables Capillaries are fed through the guide ducts between the base tray and the instrument Pinches in the leak sensor cable or the capillaries may lead to malfunctions Unplug the leak sensor cable before you remove the base tray Remove all the capillaries from the capillary ducts before you remove the base ...

Страница 21: ...crews and their washers 3 Remove the base tray Always mount the base tray under the lowermost instrument of the stack Mounting the base tray Prerequisites The instrument is switched off The bottle holder is cleared All of the cable connections on the rear have been disconnected There are no loose parts in the instrument The instrument is lying on its side and the bottom surface is visible Accessor...

Страница 22: ...tray Stack other instruments in the required order Mount the bottle holder 6 2061 100 onto the topmost instrument on the stack see Mounting the bottle holder page 15 3 3 2 2 Removing mounting the bottle holder Remove the bottle holder if you want to install another instrument onto the IC instrument Removing the bottle holder Prerequisites The instrument is switched off The bottle holder is cleared...

Страница 23: ...oppers 2 Loosen the 2 cylinder screws with the 3 mm hex key and remove them 3 Remove the bottle holder Stack other instruments in the required order Mount the bottle holder 6 2061 100 onto the topmost instrument on the stack Mounting the bottle holder Prerequisite The instrument is switched off Accessories 3 mm hex key 6 2621 100 ...

Страница 24: ...ttle holder restore all connections that were loos ened at the beginning of the process Restoring the loosened connections 1 Plug in all necessary USB cables 2 Plug in all necessary MSB cables 3 Plug in the power cord 4 Mount the drainage tubing again see manual of the IC instrument A longer section of silicone tubing 6 1816 020 may have to be cut to size and mounted see also the manual for the IC...

Страница 25: ...asten the other end of the capillary to the coupling on the trans fer tubing 2 Connecting the transfer tubing and Dosino Fasten the capillary to the coupling of the transfer tubing Connect the other end of the capillary to the Dosino see manual for the Dosino 3 Remaining capillary connections The remaining 10 connections can be used as needed for Connecting to the injection valve in the Extension ...

Страница 26: ...6 330 Pump tubing LFL orange white 3 stoppers PVC Tygon 0 64 mm No special applications 6 1826 340 Pump tubing LFL black black 3 stoppers PVC Tygon 0 76 mm For sample solution in Inline Dial ysis 6 1826 360 Pump tubing LFL white white 3 stoppers PVC Tygon 1 02 mm For sample transfer 6 1826 380 Pump tubing LFL gray gray 3 stoppers PVC Tygon 1 25 mm For Inline Dilution 6 1826 390 Pump tubing LFL yel...

Страница 27: ...6 1826 360 white white 6 1826 380 gray gray 6 1826 390 yellow yellow 6 1826 420 orange yellow Installing the pump tubing For this step you need the following accessories Tubing cartridge 6 2755 000 Pump tubing 6 1826 XXX Coupling olive UNF 10 32 6 2744 034 Pump tubing connection with locking nut and filter 6 2744 180 Includes a locknut 3 adapters and a tubing olive with filter holder 2 pressure sc...

Страница 28: ...locking nut and filter 6 2744 180 at the pump tubing exit Push the locknut onto the pump tubing Push the appropriate adapter onto the pump tubing Place the tubing olive with the filter holder into the pump tubing so that the pump tubing is firmly in place push the end of the pump tubing over at least the second notch of the olive Tighten it using the union nut 2 Removing the tubing cartridge Press...

Страница 29: ...r until you hear the snap action lever snap in Setting the flow rate The flow rate of the peristaltic pump depends on many factors The inner diameter of the pump tubing The rotational speed of the drive The contact pressure of the tubing cartridge NOTICE Pieces of pump tubing are consumables The service life of the pump tubing depends on the contact pressure among other factors Setting the contact...

Страница 30: ... and auxiliary solutions It can rotate in both directions The peristaltic pump pumps liquids based on the principle of displace ment The pump tubing is clamped between the rollers 9 5 and the tub ing cartridge 9 2 During operation the peristaltic pump drive rotates the roller hub 9 6 so that the rollers 9 5 advance the liquid in the pump tubing Figure 9 Peristaltic pump 1 Contact pressure lever 2 ...

Страница 31: ...onnecting the 6 port valve 1 Connect all capillaries using PEEK pressure screws 6 2744 010 Valve positions The 6 port valve see figure 10 page 23 can have two valve positions Filling and Injecting Switching is used to connect two different connec tions together in each case Figure 10 6 port valve Positions 1 Fill 2 Inject Filling Ports 2 and 3 4 and 5 as well as 6 and 1 are connected together in t...

Страница 32: ...ious small bottles and the transfer tubing neatly in front of the instrument This allows the capil lary connections to be kept as short as possible Installing the bottle holder 1 Removing the stoppers 2 Installing the centering pins Use the hex key to screw in the centering pins as far as they will go 1 Centering pin Part of the accessories 6 2057 200 2 Hex key Part of the accessories 6 2057 200 3...

Страница 33: ...aching the bottle holder Hook in the bottle holder 1 and push it down 2 4 Loading the bottle holder Place the transfer tubing and PE bottles into the slots on the bottle holder 1 Transfer tubing 6 1562 160 2 Bottle holder 6 2057 200 3 PE bottle 6 1608 100 50 mL volume ...

Страница 34: ... 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 connecting cable into the Extension Module connection socket on the IC instrument and tighten it in place Only one Extension Module can be connected directly to the IC instru ment The second Extension Module has to be connected to the first and the third to the second Connect...

Страница 35: ...rument The following preconditions must be met before initial start up The 942 Extension Module Vario LQH is installed as outlined in this manual and connected to the 940 Professional IC Vario You can find additional information on carrying out initial start up in the Start up chapter in the manual for the IC instrument and the MagIC Net online help ...

Страница 36: ...sure and above all the inner diame ter of the pump tubing Depending on the application different pump tubing is used Select pump tubing that best matches your application see table 1 page 18 CAUTION The service life of the pump tubing primarily depends on the contact pressure If the peristaltic pump is switched off for long periods lift up the tubing cartridges on the right side by releasing the s...

Страница 37: ... wear it can be tensioned a second time in the other respective position Maintenance interval Replace the pump tubing every 2 months Replace the pump tubing every 4 weeks if the peristaltic pump is being used continuously 5 2 2 2 Replacing the filter The filters inserted into the pump tubing connection with locking nut and filter 6 2744 180 must be replaced regularly Maintenance interval We recomm...

Страница 38: ... screw 11 3 from the tubing olive 11 1 using the two adjustable wrenches 2 Replacing the filter Remove the old filter 11 2 using tweezers Use tweezers to place the new filter 11 2 on the filter screw 11 3 so that it is flat and press it firmly into place with the rear of the tweezers 3 Installing the filter screw Screw the filter screw 11 3 back into the tubing olive 11 1 and start by tightening i...

Страница 39: ...peristaltic pump is pumping too little Peristaltic pump Contact pressure too weak Correctly set the contact pressure see Setting the contact pressure correctly page 21 Peristaltic pump Filter blocked Replace the filter see Replacing the filter page 30 Peristaltic pump Pump tubing defective Replace the pump tubing see chapter 5 2 2 1 page 29 ...

Страница 40: ... port valve with a potential use setup for the ports 1 10 9 8 7 6 5 4 3 2 11 12 13 Figure 12 10 port valve Ports 1 Port 1 Port for connecting to the injection valve in the Extension Module for example 2 Port 2 Port for connecting to the ion exchanger for example 3 Port 3 Port for connecting to an auxiliary solution 4 Port 4 Port for connecting to the waste container for example 5 Port 5 Port for c...

Страница 41: ...nation any given port can be defined as secured The secured port is moved to during switching only if it is the target of the switching procedure If the secured port lies along the shortest route during a valve switchover then the longer path will automatically be selected Example Switching from port 10 to port 7 The shorter path leads through ports 9 and 8 see figure 13 left If how ever port 8 is...

Страница 42: ... 160 1 Connection to Dosino 2 Connection to 10 port valve 3 Stand base For insertion into the bottle holder 6 2057 200 The transfer tubing is connected to the central port of the 10 port valve with one connection 14 2 and to a Dosino with the other connection 14 1 The Dosino takes over transporting and dosing liquids and is filled with a transfer solution usually water It can aspirate and expel a ...

Страница 43: ...he sample loop 15 4 at the injection valve 15 3 The desired volume is defined precisely by the size of the selected sample loop 1 2 3 4 5 6 9 10 7 8 1 2 3 4 Figure 15 Measuring the volume Filling the sample loop 1 Sample 2 Peristaltic pump 3 Injection valve 4 Sample loop After the valve switchover 16 2 the measured sample segment is pum ped 16 5 by aspiration using the Dosino 16 1 through the 10 p...

Страница 44: ... 36 942 Extension Module Vario LQH 2 942 0070 1 2 3 4 5 6 9 10 7 8 1 2 3 4 5 6 Figure 16 Measuring the volume Aspirating a sample segment 1 Dosino 2 Injection valve 3 Container with transfer solution 4 10 port valve 5 Sample 6 Transfer tubing ...

Страница 45: ...a ture 25 C 3 C Instrument status Operating 40 minutes in equilibrium 8 2 Ambient conditions Operation Ambient tem perature 5 45 C Humidity 20 80 relative humidity Storage Ambient tem perature 20 70 C Transport Ambient tem perature 40 70 C 8 3 Housing Dimensions Width 365 mm Height 131 mm Depth 380 mm Material of base tray housing and bottle holder Polyurethane hard foam PUR with flame retardation...

Страница 46: ...e function prevents damage at overpressure 8 6 Peristaltic pump Type 2 channel peristaltic pump Shift direction Clockwise counterclockwise Rotational speed 0 42 rpm in 7 levels of 6 rpm each Pumping charac teristics 0 3 mL min at 18 rpm with standard pump tubing 6 1826 420 Pump tubing material Recommended PharMed Ismaprene 8 7 6 port valve Actuator switch ing time typ 100 ms Maximum operat ing pre...

Страница 47: ... Vario LQH 2 942 0070 39 8 8 Interfaces In 1 15 pin D sub plug male Connection to the ion chromatograph or to another Extension Module Out 1 15 pin D sub plug female Connection to another Extension Module or to an 891 Professional Analog Out optional ...

Страница 48: ...om into your Internet browser 2 Enter the article number e g 2 942 0070 into the search field The search result is displayed 3 Click on the product Detailed information regarding the product is shown on various tabs 4 On the Included parts tab click on Download the PDF The PDF file with the accessories data is created NOTICE Once you have received your new product we recommend download ing the acc...

Страница 49: ...3 10 port valve 17 Peristaltic pump 18 Pump tubing 18 Installation diagram 10 Instrument Front 7 Rear 8 M Maintenance Peristaltic pump 28 Material 37 O Operation Peristaltic pump 28 Overview of the instrument 7 P Peristaltic pump Installation 18 Maintenance 28 Mode of operation 22 Operation 28 Technical specifications 38 Pump tubing Install 18 Service life 28 Pump tubings Overview 18 R Rear 8 Refe...

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