Mettler Toledo GA42 Instructions d'exploitation

Operating InstructionsMETTLER TOLEDODL36 KF Coulometer

8 METTLER TOLEDO DL36Keypad and display7894563210.EscCESelectEnterRunTitrationSetupResultStirrerStopPrint5. Keypad and display5.1 The keypadWhen you

METTLER TOLEDO DL36 9Example with stable drift, this also means that the electrodepotential must lie in the vicinity of this value at the end pointof

10 METTLER TOLEDO DL36The first titration6. The first titrationTo determine the moisture content of a sample accurately, parameters are stored in the

METTLER TOLEDO DL36 11The method7. The methodA method with default parameters is stored in the DL36. These comprise two groups, themeasurement and re

12 METTLER TOLEDO DL36Key selection Display/Entry (example)Titrationt(stir) [s]? 0 ...10Entert(wait) [s]? 15Entert(max) [s]? 0EnterDrift st

METTLER TOLEDO DL36 13Notes1. Stirring and titration time Run Run Sample Stirring time t(stir) t(wait): no abort of t(max) or the time until defi

14 METTLER TOLEDO DL367.3.2 Result parametersThis parameter group comprises three parts:1. the calculation parameters (Calculation)2. the selection o

METTLER TOLEDO DL36 15Short-form report GLP report On printout:Date 96/06/02 13:26 Date 96/06/02 13:26 Date and timeSample ID ETHANOL Instr. ID DL36

16 METTLER TOLEDO DL363. Parameters for recalculationIf, e.g. you have made a mistake when entering the weight or have selected a different resultuni

METTLER TOLEDO DL36 178. SetupUnder this key you call up menus and functions which support the method and allowselection of the peripheral devices.Wh

18 METTLER TOLEDO DL36SetupKey selection Display/Entry (example)SetupSetup [1-8]? 1EnterA.Capa. [mg]? 61EnterC.Capa. [mg]? 61EnterAlarm set: off ↑Se

METTLER TOLEDO DL36 19Key selection Display/Entry (example)SetupSetup [1-8]? 3Enter AEnter A_Enter A._Enter A. _••.Setup8.3 Entering the user

20 METTLER TOLEDO DL368.5 Selecting peripheral devicesIn this menu you select the printer and the balance you have attached to the DL36. For acompute

METTLER TOLEDO DL36 21Notes1. For all balances you must select the default setting with unidirectional transmission mode"Send Cont.".2. If

22 METTLER TOLEDO DL36Setup8.7 Selecting entry of the sample identificationYou can choose whether you enter the sample identification before or after

METTLER TOLEDO DL36 23Sample determinations9. Sample determinations9.1 Weight transfer from a balanceYou have selected a variable weight as a calcula

24 METTLER TOLEDO DL369.2 Tips for sample additionThe titration cell of the DL36 is set up for the injection of samples.1. During sample preparation

METTLER TOLEDO DL36 25Sample determinations9.3 Tips for accurate determinations1. We advise always using the DL36 in the operating mode "Pretitr

26 METTLER TOLEDO DL36Error messages and malfunctions10. Error messages and malfunctions10.1 Error messages of the DL36Error messageA.Capacity Over!C

METTLER TOLEDO DL36 27Error messages and malfunctionsFaultDrift too highReagent consump-tion too highEnd point notreached or reachedtoo latePoor repr

METTLER TOLEDO DL36 1ContentsContents Page1. Introduction ...

28 METTLER TOLEDO DL3611. Maintenance and servicing11.1 Charging internal batteryA battery is responsible for the internal clock. Contact the METTLER

METTLER TOLEDO DL36 2911.3 Greasing the glass joints– Turn the stopper/electrode/drying tube of the titration cell about once a week to check theirco

30 METTLER TOLEDO DL36Maintenance and servicing2. AnolyteYou should change the anolyte when• the capacity limit is reached (see Section 8.1),• the dr

METTLER TOLEDO DL36 31Maintanance and servicing2. Cleaning with chromic acid (if foreign matter has collected on the membrane or theplatinum surface)

32 METTLER TOLEDO DL36Standard and optional equipment12. Standard and optional equipmentYou can reorder every part with an order number; the numbers

METTLER TOLEDO DL36 33Order No.Drying tube (1) 105016• filled with silica gelSuction bottle made of polyethylene (1) 105123Plastic funnel (1) 105124S

34 METTLER TOLEDO DL36Order No.Syringe 1 mL set of 100 71492Syringe 10 mL set of 100 71482Injection needle set of 12 7148380 mm x 1.2 mmMETTLER TOLED

METTLER TOLEDO DL36 35Order No.Operating Instructions German 51709541English 51709542French 51709543Memo card German 51709585English 51709586French 5

36 METTLER TOLEDO DL3613. Technical data13.1 DL36Technical dataMeasurement methodControl systemEnd point detectionStatus display for a titrationEnd p

METTLER TOLEDO DL36 37Technical dataHousingTitration cellDisplayDimensionsWeightPower supplyFusesAmbient conditionsPolyesterPyrex®LCD, 16 charactersw

2 METTLER TOLEDO DL36ContentsPage10. Error messages and malfunctions ... 2610.1 Error messa

38 METTLER TOLEDO DL36Preset configuration on attachment of one of the possible balances from:Mettler Shimadzu A & D SartoriusBaud rate 2400 1200

METTLER TOLEDO DL36 39Index14. Index? (question mark) 11↑ (arrow) 11Abort parameters 12Accurate determinations (tips) 25Anolyte 5, 6, 17, 30Applicati

40 METTLER TOLEDO DL36IndexSelect key 8Septum 29Servicing 28Setup 17Setup key 11Short-form report 15Silica gel 29Stable 10Standard equipment 32Standa

© Mettler-Toledo GmbH 1996 ME-51709542 Printed in Switzerland 9606/2.12Subject to technical changes and to the availabilityof the accessories

METTLER TOLEDO DL36 3Introduction1. IntroductionMoisture in sugar or salt influences its pouring properties. Traces of moisture in brake fluidhave an

4 METTLER TOLEDO DL36Safety measures2. Safety measuresThe DL36 has been tested for the experiments and intended purposes documented in theOperating I

METTLER TOLEDO DL36 5Measurement principle3. Measurement principleIn the Karl Fischer method for determination of the moisture content, water (H2O) r

6 METTLER TOLEDO DL36Putting into operation4. Putting into operation4.1 Preparing the titration cellNever inhale the vapors of Karl Fischer reagents

METTLER TOLEDO DL36 7Putting into operation4.2 Attaching peripheral devicesYou can attach, e.g. the GA42 Printer and an analytical balance from METTL