Metrohm 940 Professional IC Vario ONE/Proep 2 Manuel d'utilisateur

940 Professional IC Vario940 Professional IC Vario ONE/Prep 2Manual8.940.8003EN

1.1 Instrument description￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭2￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Leak sensorThe leak sensor detects leaking l

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭92￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)9 AccessoriesUp-to-date information on the scope of delivery and opt

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭9 Accessories940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭93The Partslists webpage will be displayed. 7Select the de

Index￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭94￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)IndexNumbers/Symbols6-port valve ...

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭Index940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭95Leak-tightness ... 42Leaky piston seals .

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭1 Introduction940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭3Peristaltic pumpThe peristaltic pump is used for pumping

1.3 Safety instructions￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭4￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)1.3.2 Electrical safetyThe electrical safety w

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭1 Introduction940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭51.3.3 Tubing and capillary connectionsCAUTIONLeaks in t

1.4 Symbols and conventions￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭6￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)1.4 Symbols and conventionsThe following s

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭2 Overview of the instrument940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭72 Overview of the instrument2.1 FrontFig

2.1 Front￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭8￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)7Injection valve8Pulsation absorber9Switching valveFor the sa

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭2 Overview of the instrument940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭92.2 RearFigure 2 Rear1Bottle holderOffers

2.3 Feed-throughs for capillaries and cables￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭10￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5Vacuum connectionFor con

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭2 Overview of the instrument940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭11Openings on the doorFigure 3 Feed-through

2.3 Feed-throughs for capillaries and cables￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭12￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Openings on the back pane

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭2 Overview of the instrument940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭13Figure 5 Ducts for capillaries

3.1 Setting up the instrument￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭14￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3 Installation3.1 Setting up the instr

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭15Also see: PEEK pressure screws video on the Internet ht

3.2 Capillary connections in the IC system￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭16￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭ The capillary ends do not

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭173.3 Removing the handleThe instrument is equipped with

3.4 Removing transport locking screws￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭18￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.4 Removing transport locking

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭19Store the transport locking screws in a safe place. Rei

3.5 Connecting the drainage tubing and leak sensor￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭20￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Connecting the drai

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭21Route the loose end into a waste container.3.5.2 Conne

Metrohm AGCH-9100 HerisauSwitzerlandPhone +41 71 353 85 85Fax +41 71 353 89 [email protected] Professional IC Vario940 Professional

3.7 Connecting the eluent bottle￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭22￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.7 Connecting the eluent bottleThe

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭23 2Mounting the tubing adapter and the aspiration filter

3.7 Connecting the eluent bottle￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭24￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120) 4Mounting the adsorber tubeNOTEDepen

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭253.8 Connecting the eluent degasserThe high-pressure pu

3.10 Installing an inline filter￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭26￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Figure 9 High-pressure pump with purg

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭27Figure 10 Inline filter1Input capillaryConnected to the

3.12 Injection valve￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭28￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.12 Injection valveThe injection valve connects

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭29Figure 12 Exchanging the sample loop1Pressure screwFast

3.13 Installing the detector￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭30￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.13 Installing the detectorThe 940 Prof

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭313.14 Connecting the sample degasser (optional)Gas bubb

TeachwareMetrohm AGCH-9100 [email protected] documentation is protected by copyright. All rights reserved.Although all the information

3.14 Connecting the sample degasser (optional)￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭32￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Connecting the sample d

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭333.15 Peristaltic pump3.15.1 Installing the peristalti

3.15 Peristaltic pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭34￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Table 3 Pump tubing and suitable adaptersPump tu

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭35 1Connecting the pump tubing￭ Attach the Coupling Olive

3.15 Peristaltic pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭36￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120) 3Inserting the pump tubing￭ Press the tubing ca

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭37The contact pressure is now set optimally.3.15.2 Mode

3.16 Installing the 6-port valve￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭38￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.16 Installing the 6-port valveDuri

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭393.17 Connecting the instrument to a computerNOTEThe in

3.18 Connecting the instrument to the power supply￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭40￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.18 Connecting th

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭41After being switched on, the LED on the front of the in

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭Table of contents940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭IIITable of contents1 Introduction 11.1 Instrument d

3.19 Initial start-up￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭42￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120) 4Deaerating the high-pressure pump￭ Push the en

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭433.20 Connecting and rinsing the guard columnGuard colu

3.20 Connecting and rinsing the guard column￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭44￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭ Guard column (suitable

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭45￭ Start manual control in MagIC Net and select the high

3.21 Connecting the separation column￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭46￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)NOTEThe separation column may no

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭47Connecting the separation column 1Removing the stoppers

3.22 Conditioning￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭48￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120) 5Installing the output of the separation column￭ Fa

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭3 Installation940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭49￭ Ensure that the eluent aspiration tubing is immersed

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭50￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)4 OperationThe 940 Professional IC Vario – ONE/Prep 2 is operated so

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭515 Operation and maintenance5.1 IC system

Table of contents￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭IV￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)3.15 Peristaltic pump ...

5.1 IC system￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭52￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5.1.4 Shutting down and starting back upIf the instrume

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭535.2 Capillary connectionsAll connections

5.4 Column thermostat – Replacing the capillaries￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭54￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)13211112Figure 15 Co

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭55Replacing the preheating capillariesIn ord

5.6 Servicing the eluent degasser￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭56￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)The composition of the eluent plays

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭57Connecting the connecting tubing 1￭ Insert

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭58￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5.8 Servicing the high-pressure

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭59CAUTIONMaintenance work on the high-pressu

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭60￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Cleaning the outlet valve 1Removi

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭61NOTEThe maximum treatment time in an ultra

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭Table of contents940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭V5.15.4 Regenerating the separation column ...

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭62￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Spare parts If the inlet valve ca

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭63NOTEThe maximum treatment time in an ultra

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭64￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭ Has the pressure dissipated?￭ I

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭65Figure 17 High-pressure pump – cross-secti

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭66￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)21Figure 18 Tool for piston seal

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭67 3Removing the old piston sealCAUTIONScrew

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭68￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Optional: Cleaning/replacing the

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭69Figure 21 Components of the piston cartrid

5.8 Servicing the high-pressure pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭70￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)You can find these parts in the a

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭71Connecting the input for the high-pressure

Table of figures￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭VI￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Table of figuresFigure 1 Front ...

5.9 Servicing the inline filter￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭72￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Removing the filterFigure 22 Inline fi

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭73Inserting a new filter 1Inserting a new fi

5.10 Servicing the pulsation absorber￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭74￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5.10 Servicing the pulsation ab

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭75 2Aspirating the sample and measuring the

5.14 Peristaltic pump￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭76￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5.14 Peristaltic pump5.14.1 Notes on operating

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭775.14.2.2 Replacing the filterThe filters

5.15 Separation column￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭78￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)5.15 Separation column5.15.1 Separating effic

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭5 Operation and maintenance940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭79NOTERegeneration is intended as a last res

6.1 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭80￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)6 TroubleshootingProblem Cause RemedyMarked drop inpressure.Leak

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭6 Troubleshooting940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭81Problem Cause RemedyInjection valve – Valveblocked.H

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭1 Introduction940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭11 Introduction1.1 Instrument descriptionThe 940 Profes

6.1 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭82￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)Problem Cause RemedyThe backgroundconductivity is toohigh.The inc

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭6 Troubleshooting940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭83Problem Cause RemedyVacuum is not beingbuiltEluent d

7.1 Reference conditions￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭84￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)7 Technical specifications7.1 Reference con

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭7 Technical specifications940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭857.4 HousingDimensionsWidth 365 mmHeight 64

7.7 Eluent degasser￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭86￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)7.7 Eluent degasserMaterial FluoropolymerResistan

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭7 Technical specifications940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭87Gradient capabil-ityIsocratic or gradient (

7.13 6-port valve￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭88￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)7.13 6-port valveActuator switch-ing timetyp. 100 m

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭7 Technical specifications940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭897.16 Safety specificationThis instrument f

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭90￭￭￭￭￭￭￭￭940 Professional IC Vario ONE/Prep 2 (2.940.1120)8 Warranty (guarantee)Metrohm guarantees that the deliveries and ser

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭8 Warranty (guarantee)940 Professional IC Vario ONE/Prep 2 (2.940.1120)￭￭￭￭￭￭￭￭91The same warranty periods that are specified fo