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3.4 Peristaltic pump

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

20

￭￭￭￭￭￭￭￭

942 Extension Module Vario SeS/PP (2.942.0500)

Setting the contact pressure correctly

 

1

￭

Fully loosen the contact pressure lever , i.e. press it all the way
down.

￭

In the software, activate the drive of the peristaltic pump with the
desired speed.

￭

Raise the contact pressure lever one step at a time until liquid
flows.

￭

When liquid starts flowing, raise the contact pressure lever by an
additional two ratchet increments.

The contact pressure is now set optimally.

3.4.2 

Mode of operation for the peristaltic pump

The peristaltic pump is used for pumping sample 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 

(8-

5

)

 and the tub-

ing cartridge 

(8-

2

)

. During operation, the peristaltic pump drive rotates

the roller hub 

(8-

6

)

, so that the rollers 

(8-

5

)

 advance the liquid in the

pump tubing.

Содержание 2.942.0500

Страница 1: ...942 Extension Module Vario SeS PP 942 Extension Module Vario SeS PP Manual 8 942 8005EN 2019 12 11...

Страница 2: ......

Страница 3: ...H 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 SeS PP 942 Extension Module Vario SeS PP 2 942 0500 Manual 8 942 8005EN...

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: ...rofessional 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 Transport locking screws 9 3 3 Base tray and bottle holder 10 3 3 1 Basic...

Страница 6: ...ressor Module MSM 38 5 3 2 Taking care of the suppressor housing 39 5 3 3 Servicing the Metrohm Suppressor Module MSM 39 5 4 Servicing the Metrohm CO2 Suppressor MCS 48 5 4 1 Replacing the CO2 adsorpt...

Страница 7: ...ase 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 Module MSM Connect...

Страница 8: ......

Страница 9: ...ates the measured data and manages it in a database The 942 Extension Module Vario SeS PP consists of the following compo nents Peristaltic pump The peristaltic pump is used for pumping sample and aux...

Страница 10: ...This document describes the 942 Extension Module Vario SeS PP 2 942 0500 its assembly and connection to the IC instrument as well as the installation operation and maintenance of individual component...

Страница 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...

Страница 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...

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: ...Module Vario SeS PP 2 942 0500 2 Overview of the instrument 2 1 Front Figure 1 Front 1 Peristaltic pump see chapter 3 4 1 page 15 2 MCS see chapter 3 6 page 28 3 Suppressor drive see chapter 3 4 1 pa...

Страница 15: ...ension 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 connection cable provided Extension m...

Страница 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...

Страница 17: ...le for operation and free of vibrations and which provides protection against corrosive atmosphere and contamination by chemicals The instrument should be protected against excessive temperature fluct...

Страница 18: ...or more stacks 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 instrument...

Страница 19: ...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 have been...

Страница 20: ...lying on its side and the bottom surface is visible Accessories 3 mm hex key 6 2621 100 1 3 2 Figure 5 Mounting the base tray 1 Mount the base tray in such a way that the openings in the base tray mat...

Страница 21: ...cted 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 1 2 3 F...

Страница 22: ...the instrument 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 th...

Страница 23: ...sing the triiodide method 6 1826 320 Pump tubing LFL orange yellow 3 stoppers PVC Tygon 0 48 mm For acceptor solutions for Inline Dialysis and for Inline Ultrafiltra tion 6 1826 330 Pump tubing LFL or...

Страница 24: ...een 6 1826 320 orange yellow 6 1826 330 orange white 6 1826 340 black black 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...

Страница 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...

Страница 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...

Страница 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...

Страница 28: ...raise the contact pressure lever by an additional two ratchet increments The contact pressure is now set optimally 3 4 2 Mode of operation for the peristaltic pump The peristaltic pump is used for pu...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 33: ...the outlet of the separation col umn using a short pressure screw 6 2744 070 2 Use a long pressure screw 6 2744 090 to connect the capillary labeled out to the inlet of the MCS see chapter 3 6 2 page...

Страница 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...

Страница 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...

Страница 36: ...ty and minimizes the injection peak and carbonate peak CO2 can enter the eluent stream through the sample itself or can develop due to the suppression reaction in the suppressor Connecting the MCS bet...

Страница 37: ...alled on the air aspiration capillary 3 Luer coupling 6 2744 120 Mounted on the air aspiration capillary with a pressure screw 6 2744 070 1 Removing the threaded stoppers Remove and keep the two threa...

Страница 38: ...through a CO2 adsorption cartridge CW 6 2837 100 Accessories For this step you need the following accessories Adsorption cartridge holder 6 2057 080 with two clips CO2 adsorption cartridge CW 6 2837 1...

Страница 39: ...tridge CW is now ready for installation NOTICE The new CO2 adsorption cartridge CW 6 2837 100 works without attached H2O adsorption cartridge Installing the CO2 adsorption cartridge CW Accessories Ads...

Страница 40: ...the slots on the adsorption cartridge holder 2 Connecting the CO2 adsorption cartridge CW Attach the capillary connected to the Metrohm CO2 Suppressor s MCS Air in connection to the tip of the CO2 ads...

Страница 41: ...Module Accessories For this step you need the following accessories 6 2156 060 cable Extension Module Professional IC 40 cm or 6 2456 070 cable Extension Module Professional IC 1 m optional accessory...

Страница 42: ...cted to the 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 co...

Страница 43: ...tions must be met before initial start up The peristaltic pump is installed and connected A rotor is correctly inserted The MCS is connected The 942 Extension Module Vario SeS PP is connected to the 9...

Страница 44: ...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 15 CAUTION T...

Страница 45: ...f 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 b...

Страница 46: ...s 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 it by hand Finish tightening it u...

Страница 47: ...ed over CAUTION The Metrohm Suppressor Module MSM must be regenerated see chapter 5 3 3 2 page 40 cleaned see chapter 5 3 3 4 page 43 or replaced see chapter 5 3 3 5 page 45 if the capacity of the Met...

Страница 48: ...en 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 larg...

Страница 49: ...ohm 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 out...

Страница 50: ...the 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 Met...

Страница 51: ...hree 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 chro...

Страница 52: ...and 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 Suppresso...

Страница 53: ...g piece 12 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 12 1 and tig...

Страница 54: ...f the housing together with the rotor 12 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 Loo...

Страница 55: ...rned 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 connecting...

Страница 56: ...rption cartridge CW 6 2837 100 loses capacity over time Depleted cartridges change their color to violet New cartridges are white The CO2 adsorption cartridge CW needs to be replaced once of its color...

Страница 57: ...tact pressure too weak Correctly set the contact pressure see Setting the contact pressure correctly page 20 Peristaltic pump Filter blocked Replace the filter see Replacing the filter page 38 Perista...

Страница 58: ...2 page 40 Precision problems the measured values are highly scattered MCS The vacuum is too low Check the connectors If they are OK Contact Metrohm Service SPM Insufficient amount of regenera tion sol...

Страница 59: ...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...

Страница 60: ...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 Switching time typ 100...

Страница 61: ...rio SeS PP 2 942 0500 53 7 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 Mo...

Страница 62: ...com into your Internet browser 2 Enter the article number e g 2 942 0500 into the search field The search result is displayed 3 Click on the product Detailed information regarding the product is shown...

Страница 63: ...apillary connection 29 Cartridge connection 30 Installation 28 Technical specifications 52 Use 28 O Operation Peristaltic pump 36 Suppressor 38 Organic contamination Suppressor 40 Overview of the inst...

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