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Metrohm 2.942.0300 Manual Download Page 35

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3 Installation

942 Extension Module Vario ChS-PP (2.942.0300)

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27

3.4.2.4 

Connecting the rinsing solution

Various possibilities exist for rinsing the Metrohm Suppressor Module:

￭

Rinsing solution via STREAM (recommended)
Use the eluent from the conductivity detector as rinsing solution.

￭

Rinsing solution via peristaltic pump
Prepare the rinsing solution in a separate bottle and convey it with the
peristaltic pump.

The rinsing solution is connected to the 

rinsing solution

 capillary.

Connecting the rinsing solution inlet with STREAM

 

1

Connect the detector outlet capillary of the conductivity detector and
the capillary labeled 

rinsing solution

 to each other using a coupling

(6.2744.040) and two pressure screws (6.2744.070).

NOTICE

The detector outlet capillary must not be shortened.

Connecting the rinsing solution inlet to the peristaltic pump

For this step, you need the following accessories: (not contained in its
entirety in the standard accessories):

￭

Pump tubing (6.1826.420)

￭

Tubing olive with filter and locking nut (6.2744.180)

￭

Tubing olive (6.2744.034)

￭

Tubing cartridge (6.2755.000)

￭

2 short pressure screws (6.2744.070)

￭

PTFE capillary (6.1803.030) (connected with the bottle with the rinsing
solution)

Summary of Contents for 2.942.0300

Page 1: ...942 Extension Module Vario 942 Extension Module Vario ChS PP Manual 8 942 8004EN 2020 02 25...

Page 2: ......

Page 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 ChS PP 2 942 0300 Manual 8 942 8004EN 20...

Page 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...

Page 5: ...2 1 Front 6 2 2 Rear 7 2 3 Extension Module and 940 Professional IC Vario 7 3 Installation 9 3 1 Setting up the instrument 9 3 1 1 Packaging 9 3 1 2 Checks 9 3 1 3 Location 9 3 2 Base tray and bottle...

Page 6: ...for operating the Metrohm Suppressor Module MSM 33 5 3 2 Taking care of the suppressor housing 34 5 3 3 Servicing the Metrohm Suppressor Module MSM 34 6 Troubleshooting 43 6 1 Problems and their solu...

Page 7: ...4 Removing the base tray 11 Figure 5 Mounting the base tray 12 Figure 6 Removing the bottle holder 13 Figure 7 Mounting the bottle holder 14 Figure 8 Peristaltic pump 21 Figure 9 Metrohm Suppressor Mo...

Page 8: ......

Page 9: ...s 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 Ch...

Page 10: ...nd scope This document describes the 942 Extension Module Vario ChS PP 2 942 0300 its assembly and connection to the IC instrument as well as the installation operation and maintenance of individual c...

Page 11: ...ossible hazard due to heat or hot instrument parts WARNING This symbol draws attention to a possible biological hazard CAUTION This symbol draws attention to possible damage to instruments or instrume...

Page 12: ...also 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...

Page 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...

Page 14: ...6 942 Extension Module Vario ChS PP 2 942 0300 2 Overview of the instrument 2 1 Front Figure 1 Front 1 Peristaltic pump see chapter 3 3 1 page 15 2 Suppressor drive see chapter 3 4 page 21 3 Standby...

Page 15: ...tted directly 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 f...

Page 16: ...n 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 suppresso...

Page 17: ...d contamination by chemicals The instrument should be protected against excessive temperature fluctua tions and direct sunlight 3 2 Base tray and bottle holder 3 2 1 Basic information on base tray and...

Page 18: ...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 le...

Page 19: ...screws 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 ho...

Page 20: ...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 13 3 2 2 2 Removing mounting the bot...

Page 21: ...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...

Page 22: ...ottle 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...

Page 23: ...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...

Page 24: ...ck 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...

Page 25: ...cking 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 p...

Page 26: ...the following accessories Aspiration capillary 6 1803 030 2 pressure screw short 6 2744 070 6 1803 030 6 2744 070 6 2744 034 6 1826 xx0 6 2744 180 6 2744 070 Suppressor On the pump tubing s connect th...

Page 27: ...illary to the pump tubing con nection with locking nut and filter 6 2744 180 using a pressure screw 6 2744 070 Next steps Connect the loose end of the aspiration capillary to the bottle with the rinsi...

Page 28: ...raise the contact pressure lever by an additional two ratchet increments The contact pressure is now set optimally 3 3 2 Mode of operation for the peristaltic pump The peristaltic pump is used for pu...

Page 29: ...or A 6 2844 000 must first be fitted into the adapter 6 2842 020 which can then be inserted into the suppressor housing A connecting piece 6 2835 010 is used for all rotors for connecting the Metrohm...

Page 30: ...e slot of the suppressor drive NOTICE The rotor s sealing surface is located approx 4 mm deep inside the suppressor drive if the rotor is inserted correctly If this is not the case then the rotor must...

Page 31: ...cloth Insert the rotor into the adapter so that the tubing connections on the rear of the rotor fit into the corresponding recesses inside the adapter and one of the three holes of the rotor is visib...

Page 32: ...llary for the eluent 2 in Inlet capillary for the eluent 3 regenerant Inlet capillary for the regeneration solution 4 waste reg Outlet capillary for the regeneration solu tion to the waste container 5...

Page 33: ...UNF 10 32 6 1602 150 PTFE capillary 0 5 mm inner diameter 3 m 6 1803 030 3 4 2 1 Installing the eluent path The eluent path is connected with the capillaries in and out 1 Connect the capillary labeled...

Page 34: ...following accessories Pump tubing 6 1826 420 Tubing olive with filter and locking nut 6 2744 180 Tubing olive 6 2744 034 Tubing cartridge of the peristaltic pump 1 Prepare a tubing cartridge of the p...

Page 35: ...rinsing solution inlet with STREAM 1 Connect the detector outlet capillary of the conductivity detector and the capillary labeled rinsing solution to each other using a coupling 6 2744 040 and two pre...

Page 36: ...940 Professional IC Vario has to be switched off when connect ing the Extension Module Accessories For this step you need the following accessories 6 2156 060 cable Extension Module Professional IC 4...

Page 37: ...e first and the third to the second Connecting an Extension Module to another Extension Module 1 Plug the connecting cable 6 2156 060 or the longer connecting cable 6 2156 070 into the In connection s...

Page 38: ...conditions must be met before initial start up The peristaltic pump is installed and connected A rotor is correctly inserted The 942 Extension Module Vario ChS PP is connected to the 940 Pro fessional...

Page 39: ...ressure 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 15 CAUTIO...

Page 40: ...ar 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...

Page 41: ...t firmly into place with the rear of the tweezers 3 Installing the filter screw Screw the filter screw 10 3 back into the tubing olive 10 1 and start by tightening it by hand Finish tightening it usin...

Page 42: ...tched over CAUTION The Metrohm Suppressor Module MSM must be regenerated see chapter 5 3 3 2 page 35 cleaned see chapter 5 3 3 4 page 38 or replaced see chapter 5 3 3 5 page 40 if the capacity of the...

Page 43: ...eration solution may no longer be able to completely remove them This constantly reduces the capacity of the suppressor units which results in reduced phosphate sensitivity in mild cases and a large...

Page 44: ...etrohm Suppressor Module MSM Regenerate the three suppressor units one after the other for approx 15 minutes using one of the solutions mentioned above Connect the capillary labeled regenerant to the...

Page 45: ...next suppressor unit and rinse it as described above As soon as all three suppressor units have been rinsed disconnect the capillary labeled rinsing solution from the coupling 4 Connecting the Metroh...

Page 46: ...l three suppressor units are completely exhausted restore the regeneration solution feed 6 Equilibrating the system Equilibrate the system as usual see chapter Conditioning in the manual for the ion c...

Page 47: ...d pump ultrapure water through them Check whether water comes out at the connecting piece If one of the capillaries remains blocked the connecting piece see Replacing parts of the Metrohm Suppressor M...

Page 48: ...ting piece 11 2 into the housing in such a way that connector 1 is on top and the three pins of the connecting piece fit into the corresponding recesses on the housing Reattach the union nut 11 1 and...

Page 49: ...he housing together with the rotor 11 3 If the rotor gets stuck in the housing you can push it out as fol lows Put a pointed object into the slot in the housing and use it to push out the rotor Loosen...

Page 50: ...turned or removed it can be moved into the correct position from below by means of a pointed object e g a screwdriver 5 Cleaning the new connecting piece Clean the sealing surface of the new connecti...

Page 51: ...ation solution or rinsing solution Peristaltic pump Contact pressure too weak Correctly set the contact pressure Peristaltic pump Filter blocked Replace the filter see chapter 5 2 2 2 page 32 Peristal...

Page 52: ...ys tem Check all connections Peristaltic pump Contact pressure too weak Correctly set the contact pressure see Setting the contact pressure correctly page 20 Peristaltic pump Filter blocked Replace th...

Page 53: ...a ture 25 C 3 C Instrument status Operating 40 minutes in equilibrium 7 2 Ambient conditions Operation Ambient tem perature 5 45 C Humidity 20 80 relative humidity Storage Ambient tem perature 20 70 C...

Page 54: ...charac teristics 0 3 mL min at 18 rpm with standard pump tubing 6 1826 420 Pump tubing material Recommended PharMed Ismaprene 7 6 Metrohm Suppressor Module MSM Resistance to sol vents No restriction S...

Page 55: ...etrohm com into your Internet browser 2 Enter the article number e g 2 942 0300 into the search field The search result is displayed 3 Click on the product Detailed information regarding the product i...

Page 56: ...ial 45 O Operation Peristaltic pump 31 Suppressor 33 Organic contamination Suppressor 35 Overview of the instrument 6 P Peristaltic pump Installation 15 Maintenance 31 Mode of operation 20 Operation 3...

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