Metrohm 796 Titroprocessor Manuel d'utilisateur

CH-9101 Herisau/SwitzerlandPhone +41 71 353 85 85Fax +41 71 353 89 01EMail [email protected]://www.metrohm.ch796 TitroprocessorProgram version 5.7

1.3 Instrument description796 Titroprocessor, Instructions for use441.3.3 Rear view01ACC21Bar Remote PrinterType 1.796.0010External BusDos. A1Dos. A2

6.2 Sample silo796 Titroprocessor, Instructions for use9494ÚÄÄÄ Sample Silo : NEW.slo ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

6. Sample data and sample silo796 Titroprocessor, Instructions for use9595The individual silo columns:Pointer column The output pointer '<&apo

6.2 Sample silo796 Titroprocessor, Instructions for use9696[<-- Out sets the output pointer '<' to the silo line selected pointer] wit

6. Sample data and sample silo796 Titroprocessor, Instructions for use9797Sample identificationThe sample identification names and types of field can

6.2 Sample silo796 Titroprocessor, Instructions for use9898Data output in the current sample dataThe output pointer (<) marks the silo line which w

7. Titration and measuring modes796 Titroprocessor, Instructions for use99997 Titration and measuring modes7.1 GeneralThe 796 Titroprocessor carries

7.1 General796 Titroprocessor, Instructions for use100100Report printout• report blocks freely combinable over a wide range for printed output ofresu

7. Titration and measuring modes796 Titroprocessor, Instructions for use1011017.2 DET Dynamic equivalence point titrationApplication:DET modes are

7.2 DET Dynamic equivalence point titration796 Titroprocessor, Instructions for use102102Three predefined sets of parameters, which can be further o

7. Titration and measuring modes796 Titroprocessor, Instructions for use103103pH = pK + log(aB/aA)If aB = aA, then pH = pK.The pK value determined is

1. Introduction796 Titroprocessor, Instructions for use551.3.5 Measuring interfaces / Measuring inputsThe 796 Titroprocessor models 2.796.0110 and 2

7.3 MET Monotonic equivalence point titration796 Titroprocessor, Instructions for use1041047.3 MET Monotonic equivalence point titrationApplicati

7. Titration and measuring modes796 Titroprocessor, Instructions for use105105V [mL]U [mV]MET: Monotonic titrationReagent addition:constant volume inc

7.3 MET Monotonic equivalence point titration796 Titroprocessor, Instructions for use1061067.3.5 Evaluation of pK and HNP valuesFrom the data of th

7. Titration and measuring modes796 Titroprocessor, Instructions for use1071077.4 SET Titration to a preset endpointApplication:SET modes are rapid

7.4 SET Titration to a preset endpoint796 Titroprocessor, Instructions for use108108Within the control range the dosing speed depends on the control

7. Titration and measuring modes796 Titroprocessor, Instructions for use109109Observation Possible causes and remedies"Overshoots". Titratio

7.5 SEC Endpoint conditioning796 Titroprocessor, Instructions for use110110Example:SEC_U* SEC_U* ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿¿CTRL_RS1 ... |CTRL

7. Titration and measuring modes796 Titroprocessor, Instructions for use1111117.6 KFT Karl Fischer titrationsApplication:The KFT modes are rapid ti

7.6 KFT Karl Fischer titrations796 Titroprocessor, Instructions for use112112In IPOL measurements steep curves are obtained; in UPOL measurementsthe

7. Titration and measuring modes796 Titroprocessor, Instructions for use113113What to do if ...Observation Possible causes and remediesFinal addition

1.3 Instrument description796 Titroprocessor, Instructions for use66So-called PC cards which meet the Standard PCMCIA 2.x (68 Pins) / JEIDA4.x can be

7.7 KFC Karl Fischer conditioning796 Titroprocessor, Instructions for use1141147.7 KFC Karl Fischer conditioningApplication:The KFC modes are indepen

7. Titration and measuring modes796 Titroprocessor, Instructions for use1151157.8 MEAS Extended measuring functionsApplication:MEAS modes are unive

7.8 MEAS Extended measuring functions796 Titroprocessor, Instructions for use116116TimeDriftWaiting periodMeasurement driftmVMinSampling time7.8.3

7. Titration and measuring modes796 Titroprocessor, Instructions for use1171177.9 CAL Calibration of pH sensorsApplication:The calibration of a pH

7.9 CAL Calibration of pH sensors796 Titroprocessor, Instructions for use118118• 1-point calibration: the relative slope is set at 1 and the positi

7. Titration and measuring modes796 Titroprocessor, Instructions for use1191197.10 Calculations / Formulas10 calculation formulas can be defined for

7.10 Calculations / Formulas796 Titroprocessor, Instructions for use120120Remark Formula name11 charactersEach formula can be given any name. The name

7. Titration and measuring modes796 Titroprocessor, Instructions for use121121stat. The result enters the statistics.live The result is shown in the t

7.10 Calculations / Formulas796 Titroprocessor, Instructions for use122122IM Initial measured value (unit depends on mode)SM Measured value after the

7. Titration and measuring modes796 Titroprocessor, Instructions for use123123The test function TST( , )If invalid values should occur during a calcul

1. Introduction796 Titroprocessor, Instructions for use771.4 The keyboardENTERNEXTDELAYSKIPLINEFEED MANCONTROL?><|":+)(*&^$#@!/.,MNBV

7.11 Reports796 Titroprocessor, Instructions for use1241247.11 ReportsSeparate reports can be defined for each mode and handled as part of thefull re

7. Titration and measuring modes796 Titroprocessor, Instructions for use125125MP_List Measuring point listCalc. Calculation report with formulasRawDat

7.11 Reports796 Titroprocessor, Instructions for use126126send Report output via an RS 232 interfaceyes | noA report can be transferred directly to a

7. Titration and measuring modes796 Titroprocessor, Instructions for use127127Example of a volume curve:ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

8.1 Titration modes796 Titroprocessor, Instructions for use1281288 Command ReferenceA method comprising various commands can be programmed in themetho

8. Command Reference796 Titroprocessor, Instructions for use1291298.2 DETThere is a choice of four different DET modes for controlled titrations with

8.2 DET796 Titroprocessor, Instructions for use130130Assignment parameters of the DET modes:comment Comment on titration mode(52 characters)The commen

8. Command Reference796 Titroprocessor, Instructions for use131131Meas. input Sensor input(A1,A2, Apol, Adiff, B1, B2, Bpol, Bdiff)The measuring inpu

8.2 DET796 Titroprocessor, Instructions for use132132The various conditions governing the discontinuation of initial dosing can becombined at will.N.B

8. Command Reference796 Titroprocessor, Instructions for use133133Dos. rate Dosing rate of initial dosing0.01 mL/min…150 mL/min | max.The maximum dosi

1.4 Instrument description796 Titroprocessor, Instructions for use881.4.3 Action keysNEXTDELAYSKIPSTARTSTOPHOLDCONTThe action key have an immediate e

8.2 DET796 Titroprocessor, Instructions for use134134Titration conditionsThese are the actual titration parameters that control the dosing procedurean

8. Command Reference796 Titroprocessor, Instructions for use135135Time recording Recording measuring timeon | offTo record the titration curve on the

8.2 DET796 Titroprocessor, Instructions for use136136It is preferable to select a relative stop volume when theprimary objective is to limit the consu

8. Command Reference796 Titroprocessor, Instructions for use137137Mpt. overflow Discontinuation: full measuring point liston | offIf 'on' is

8.2 DET796 Titroprocessor, Instructions for use138138Buret cylinder max. rate1 mL 3 mL/min2 mL 6 mL/min5 mL 15 mL/min10 mL 30 mL/min

8. Command Reference796 Titroprocessor, Instructions for use1391398.2.3 EP recognitionIf there is a possibility of several equivalence points occurri

8.2 DET796 Titroprocessor, Instructions for use140140 dMW/dV[ERC]V[mL]20min. EPC 570EP1EP2EPC 1EPC 2 U[mV]V[mL]EP window #2EP

8. Command Reference796 Titroprocessor, Instructions for use141141pK/HNP Evaluation pK value and half neutralization potentialon | offWhen the pK/HNP

8.2 DET796 Titroprocessor, Instructions for use142142Fix end points End points with pre-set measured valuesIt may be desirable to calculate with a vol

8. Command Reference796 Titroprocessor, Instructions for use143143Quantity X_Axis Display unit on the X-axisVolume | TimeTitration curves can be displ

1. Introduction796 Titroprocessor, Instructions for use99INSHOMEPG UPDEL END PG DN<PG UP> moves the field cursor in the sample silo or method ed

8.3 MET796 Titroprocessor, Instructions for use1441448.3 METThere is a choice of four different MET modes for controlled titrations withfixed volume

8. Command Reference796 Titroprocessor, Instructions for use145145The parameters of the monotonic titration modes coincide with those of theDET modes,

8.3 MET796 Titroprocessor, Instructions for use146146Signal drift Limits for signal driftwith MET_PH/U/IPOL: 0,5…50…999 mV/Min | offwith MET_UPOL: 0,1

8. Command Reference796 Titroprocessor, Instructions for use147147ÚÄÄÄ EP Recognition ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

8.3 MET796 Titroprocessor, Instructions for use1481488.3.4 Curve displayThe settings for the curve display are valid for both the live curve displaya

8. Command reference796 Titroprocessor, Instructions for use1491498.4 SETFour different SET modes are available for rapid controlled titrations to ap

8.4 SET796 Titroprocessor, Instructions for use150150Start conditionsThe start conditions correspond to those of the KFT mode, see page 160f.Titration

8. Command reference796 Titroprocessor, Instructions for use151151The [Custom adjust] softkey opens a further dialogwindow in which user-defined setti

8.4 SET796 Titroprocessor, Instructions for use152152Derivation Recording the 1st derivative of the titration curveon | offIf the derivative of the ti

8. Command reference796 Titroprocessor, Instructions for use153153controlled addition will be carried out throughout thewhole titration.U[mV]V[mL]EPDy

1.4 Instrument description796 Titroprocessor, Instructions for use1010Entry of special charactersIn the editing mode any character contained in the AS

8.4 SET796 Titroprocessor, Instructions for use154154Stop crit. Switch-off modeDrift | time | noneThe stop criterion defines the behavior of the titra

8. Command reference796 Titroprocessor, Instructions for use1551558.5 SECConditioning to a preset endpoint is implemented as an independent mode.Its

8.5 SEC796 Titroprocessor, Instructions for use156156* ITD= Intermediate titration duration, time between conditioning switch-off and the start of the

8. Command reference796 Titroprocessor, Instructions for use157157Adjustment Predefined parameter setsslow | medium | fastA selection can be made from

8.5 SEC796 Titroprocessor, Instructions for use158158tion and to output it as a temperature curve. numerical manual input (e.g. for pH correction) a

8. Command reference796 Titroprocessor, Instructions for use1591598.6 KFTTwo different KFT modes are available for titrimetric water determinationwit

8.6 KFT796 Titroprocessor, Instructions for use160160Start conditionsHere the conditions which must be fulfilled for the start of the titration aredef

8. Command reference796 Titroprocessor, Instructions for use161161buret cylinders; however, when the method is carried outthe dosing speed will automa

8.6 KFT796 Titroprocessor, Instructions for use162162End-point Target endpointfor KFT_IPOL* -2000…250…2000 mVfor KFT_UPOL* -200…25…200 µAThe target e

8. Command reference796 Titroprocessor, Instructions for use163163sible to record the temperature throughout a titration and tooutput it as a temperat

1. Introduction796 Titroprocessor, Instructions for use11111.5 Dialog1.5.1 Dialog overviewThe user dialog of the 796 Titroprocessor consists of 10 d

8.6 KFT796 Titroprocessor, Instructions for use164164Volume Definition of the stop volumeabsolute | relative | offThe stop volume can be entered as an

8. Command reference796 Titroprocessor, Instructions for use165165Stop time Absolute titration duration1…9999 s | offThe titration will be terminated

8.6 KFT796 Titroprocessor, Instructions for use166166Min. increment Smallest possible volume step0.1…9.99 µL | minIn order to avoid excessively slow t

8. Command reference796 Titroprocessor, Instructions for use167167Stop drift Volume drift for titration termination1…20…999 µL/minAfter the last addit

8.7 KFC796 Titroprocessor, Instructions for use1681688.7 KFCConditioning for a Karl Fischer titration is implemented as an independentmode. The KFC m

8. Command reference796 Titroprocessor, Instructions for use169169KFC modes produce the following system variables:COV conditioning volume; reagent co

8.7 KFC796 Titroprocessor, Instructions for use170170fer to the numerical measured value alterations. The controldirection can also be determined auto

8. Command reference796 Titroprocessor, Instructions for use171171A value up to 150 mL/min can also be entered for smallerburet cylinders; however, wh

8.8 MEAS796 Titroprocessor, Instructions for use1721728.8 MEASÚÄÄÄ Methode: NEW.mth ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

8. Command reference796 Titroprocessor, Instructions for use173173The measuring parametersMEAS_PH* potent. or volta-/amperometric measurement

1.5 Instrument description796 Titroprocessor, Instructions for use1212The main page in expert user level. ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

8.8 MEAS796 Titroprocessor, Instructions for use174174Equilibr.time Max. delay period before measurement acceptance0.1…9999 s | auto | offThe whole de

8. Command reference796 Titroprocessor, Instructions for use175175MEAS_T* Temperature measurement Sensor

8.8 MEAS796 Titroprocessor, Instructions for use176176Data acquisitionDepending on the selected measuring procedure, data acquisition mayhave differen

8. Command reference796 Titroprocessor, Instructions for use177177ÚÄÄÄ MEAS_PH* Parameters ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

8.8 MEAS796 Titroprocessor, Instructions for use178178Stop val. Measured value for terminating the meas. seriesfor MEAS_PH* pH -20…20 | offfor MEAS_U*

8. Command reference796 Titroprocessor, Instructions for use1791798.9 CALAutomated calibration of pH electrodes is possible as well as manual cali-br

8.9 CAL796 Titroprocessor, Instructions for use180180This measured value drift control can be switched off('off'). However, this is not reco

8. Command reference796 Titroprocessor, Instructions for use181181The temperature can be included in formulas for calcu-lations (see page 119ff). The

8.9 CAL796 Titroprocessor, Instructions for use182182possible to enter other values.If no buffer value is entered the Titroprocessor will try todeterm

8. Command reference796 Titroprocessor, Instructions for use183183The simplest form of an automatic calibration loop could look like this:Command

1. Introduction796 Titroprocessor, Instructions for use13131.5.4 The trace windowDuring the course of a method the display window of the application

8.10 Sample changer commands796 Titroprocessor, Instructions for use1841848.10 Sample changer commandsÚÄÄÄÄÄÄÄÄÄÄÄ¿³Titration >³³Changer >³³C

8. Command reference796 Titroprocessor, Instructions for use185185when processing the CHANGER command the samplechanger will be initialized again, the

8.10 Sample changer commands796 Titroprocessor, Instructions for use186186On beaker error Behavior with missing sample beakerMOVE_S | displayIf a beak

8. Command reference796 Titroprocessor, Instructions for use187187Value Numerical value of alteration or allocation0…1…999The numerical value of how m

8.10 Sample changer commands796 Titroprocessor, Instructions for use188188Special beaker Name of special beaker8 charactersThe special beaker can be s

8. Command reference796 Titroprocessor, Instructions for use189189PUMP Pump controlDifferent pumps can be controlled depending on the sample changer v

8.10 Sample changer commands796 Titroprocessor, Instructions for use190190Stirring rate Stirrer speed1…15 | offThe stirring speed of each individual s

8. Command reference796 Titroprocessor, Instructions for use191191During the first run of the method the commands in the (OMOVE…)OMOVE sequence are ca

8.11 Dosing commands796 Titroprocessor, Instructions for use1921928.11 Dosing commandsThe dosing commands allow various auxiliary reagents to be adde

8. Command reference796 Titroprocessor, Instructions for use193193Dos. rate Addition speed0.01 mL/min…150 mL/min | max.The maximum dosing speed depend

Table of contentTable of content796 Titroprocessor, Instructions for useTable of content1 Introduction 11.1 Range of applications ____________________

1.6 Instrument description796 Titroprocessor, Instructions for use1414The shortcut keys of the rightmost key column on the keyboard allow directaccess

8.11 Dosing commands796 Titroprocessor, Instructions for use194194ADD_R Adding a relative volumeThe ADD_R command allows a calculated volume of auxili

8. Command reference796 Titroprocessor, Instructions for use195195Dos. drive Dosing drive address(A1…A4, B1…B4, C1…C4)The connection sockets Dos. A1…D

8.12 CASE sequences796 Titroprocessor, Instructions for use196196Command Parameters ParametersÄÄÄÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

8. Command reference796 Titroprocessor, Instructions for use197197CASE Conditional execution of a command blockThe CASE command defines the condition

8.12 CASE sequences796 Titroprocessor, Instructions for use198198Examples:CASE R1>98 (result R1 must be larger than 98)CASE CM>=200 (last va

8. Command reference796 Titroprocessor, Instructions for use199199Example of a method with interlaced CASE:In this case a simple check of the sample w

8.13 Communication functions796 Titroprocessor, Instructions for use2002008.13 Communication functions³COMM >³³AUX ÚÄÄÄÄÄÄÄÄ¿ÀÄÄÄÄÄÄÄijSCAN

8. Command reference796 Titroprocessor, Instructions for use201201The assignment of the logical input and output lines on the pin occupancyof the part

8.13 Communication functions796 Titroprocessor, Instructions for use202202Input 7 6 5 4 3 2 1 0Bit 7 6 5 4 3 2 1

8. Command reference796 Titroprocessor, Instructions for use203203Pattern Bit pattern for status of lines8 characters (0 | 1 | *)The 8 or 14 output li

1. Introduction796 Titroprocessor, Instructions for use1515Tip:If the edit mode (entry on the configuration page, or press the <INS>key) isset t

8.13 Communication functions796 Titroprocessor, Instructions for use204204be defined for the communications interface as their operation could benegat

8. Command reference796 Titroprocessor, Instructions for use205205message. In this case it is advisable to pick up such a message with theSCAN_RSx com

8.13 Communication functions796 Titroprocessor, Instructions for use2062068.13.4 Other communication commandsFurther communication commands are avail

8. Command reference796 Titroprocessor, Instructions for use2072078.14 Auxiliary commands³COMM >³³AUX >³ÀÄÄÄÄÄÄÄÄÄÄÚÄÄÄÄÄÄ¿

8.14 Auxiliary commands796 Titroprocessor, Instructions for use208208This also applies when the sample silo is being used. Inthis case the entries in

8. Command reference796 Titroprocessor, Instructions for use209209t/s Command Parameters ParametersÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄ

8.14 Auxiliary commands796 Titroprocessor, Instructions for use210210The line time entry controls the run. No line time entry has the effect that,when

8. Command reference796 Titroprocessor, Instructions for use211211Command Parameters ParametersÄÄÄÄÄÄÄÄÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

8.14 Auxiliary commands796 Titroprocessor, Instructions for use212212Meas. interface Stirrer connection addressA | BThe Titroprocessor models 2.796.01

9. Results and statistics796 Titroprocessor, Instructions for use2132139 Results and statisticsWhen a determination has been completed the calculation

2.1 Safety information796 Titroprocessor, Instructions for use16162 Installation2.1 Instrument setupPackagingThe 796 Titroprocessor is supplied toget

9.1 Results page796 Titroprocessor, Instructions for use214214In the results window all necessary alterations for re-evaluations can becarried out.If

9. Results and statistics796 Titroprocessor, Instructions for use215215[*Param] allows the EP recognition criteria and the curve display tobe processe

9.1 Results page796 Titroprocessor, Instructions for use216216[File] opens the file dialog window for storing or loadingdetermination files.[Statistic

9. Results and statistics796 Titroprocessor, Instructions for use217217The results are organized in columns which are arranged in the sequence ofthe o

9.2 The <RESULT> key796 Titroprocessor, Instructions for use2182189.2 The <RESULT> keyAn alternative view of the results is offered by th

10. Curves and re-evaluation796 Titroprocessor, Instructions for use21921910 Curves and re-evaluation10.1 Single curvesBy pressing the [Show curves]

10.1 Single curves796 Titroprocessor, Instructions for use220220[Add curves] shows the selection list for similar types of determinationcontained in t

10. Curves and re-evaluation796 Titroprocessor, Instructions for use221221[Sample data] opens an entry window for altering the sample data.ÚÄÄÄ Sample

10.2 Overlapping curves796 Titroprocessor, Instructions for use222222The <é> or <ê> keys switch the graphics cursor off again.These functi

10. Curves and re-evaluation796 Titroprocessor, Instructions for use223223• Press [Add curves] in order to display a selection list of the curves int

22. . InstallationInstallation796 Titroprocessor, Instructions for use1717WARNING - Fire Hazard -with the same type and rating of fuseFor continued pr

10.3 Curve presentation796 Titroprocessor, Instructions for use224224The selection of quantities on the Y-axis:M. value pH, mV or µA (depending onmode

10. Curves and re-evaluation796 Titroprocessor, Instructions for use225225Grid Titration curve gridon | offThe titration curve grid is only shown on t

11.1 File list796 Titroprocessor, Instructions for use22622611 File manager11.1 File listThe file manager of the Titroprocessor 796 is a useful tool

11. File manager796 Titroprocessor, Instructions for use227227ÚÄÄÄ File manager: Data card ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³ Label

11.3 Format data card796 Titroprocessor, Instructions for use228228[Send opens the selection list for selection of the RS232 to RS] interface via whic

11. File manager796 Titroprocessor, Instructions for use229229• If the card already has the correct file system then it can be formattedwith the [Fo

11.4 File backup796 Titroprocessor, Instructions for use230230• If problems occur during data reception it may be necessary todeactivate the FIFO buf

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use23123112 Troubleshooting12.1 Error messagesError messages are accompani

12.1 Error messages796 Titroprocessor, Instructions for use232232ARITHMETICARITHMETIC 1: unexpected arithmetic error, code: XXXXAn arithmetical error

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use233233CHANGER 4: no rack code found for changer 'X'No magnet c

2.3 Safety information796 Titroprocessor, Instructions for use18182.3.2 Mains cable and mains connectionThe instrument is supplied with one of three

12.1 Error messages796 Titroprocessor, Instructions for use234234CHANGER 17: illeg. rack and swing head combination, changer 'X'• A swing h

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use235235CHANGER 29: changer 'X' error; Key[Reset]-->MAN CONTR

12.1 Error messages796 Titroprocessor, Instructions for use236236CURVE_REPCURVE_REP 1: curve printing not possibleData required for the printout of a

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use237237DATA CARD 9: file name not foundThe file mentioned cannot be acces

12.1 Error messages796 Titroprocessor, Instructions for use238238DETSTOREDETSTORE 1: Corrupt memory detected. Continue anyway ?The last determination

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use239239DIAGNOSISIf error messages occur during diagnosis please contact t

12.1 Error messages796 Titroprocessor, Instructions for use240240DIALOG 14: incomplete parametersNot all the parameters required for the action to be

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use241241DOSING 21: XX busy or not corresponding settingsDosing drive XX is

12.1 Error messages796 Titroprocessor, Instructions for use242242FILEFILE 1: wrong file type "XXXXXXXX"The selected file does not correspond

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use243243GLP DATAGLP DATA 1: service interval expired, servicing requiredTh

22. . InstallationInstallation796 Titroprocessor, Instructions for use19192.4 Data / key card handling (PC cards)The 796 Titroprocessor can write dat

12.1 Error messages796 Titroprocessor, Instructions for use244244MALLOCMALLOC 1: last powerdown left inconsist. status. Continue anyway?Switching off

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use245245MAN_CAL 4: buffer out of toleranceThe buffer value found is outsid

12.1 Error messages796 Titroprocessor, Instructions for use246246MEAS/CALMEAS/CAL 1: cycle time too shortThe selected measuring interval is shorter th

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use247247MEAS.INP. 4: meas.input 'X': missing A/D-Converter calib

12.1 Error messages796 Titroprocessor, Instructions for use248248METHOD 8: incomplete (OMOVE sequence, see line XXThe start sequence (OMOVE of the met

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use249249MONITORING 4: auto save aborted; XXX bytes neededThere is too litt

12.1 Error messages796 Titroprocessor, Instructions for use250250PRINTERPRINTER 1: printer off-line or defectThe printer does not answer. Press the on

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use251251RECOGN 4: enter value for EP-window "X" from...RECOGN 5:

12.1 Error messages796 Titroprocessor, Instructions for use252252For connection problems with external instruments please obtain advicefrom the servic

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use253253SCAN+CTRLSCAN+CTRL 1: Remote interface X not presentThe selected &

2.4 Safety information796 Titroprocessor, Instructions for use2020Data card insertion and removal• The data card can only be inserted in den 796 Titr

12.1 Error messages796 Titroprocessor, Instructions for use254254STORAGE 10: terminate "KeyCTRL mode" firstFor the required action the key s

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use255255SYSTEMSYSTEM 1: Execution not possible while measuringThe selected

12.1 Error messages796 Titroprocessor, Instructions for use256256TITRATION 8: titration start while not cond.readyA titration has been started althoug

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use25725712.2 Remedying storage errorsIn some circumstances (voltage fluct

12.2 Remedying storage errors796 Titroprocessor, Instructions for use258258Warning:Only switch off the 796 Titroprocessor in the ready condition (* re

1212. . TroubleshootingTroubleshooting796 Titroprocessor, Instructions for use259259PoweronWARN. DETSTORE:corrupt memory detected.continue anyway ?cle

13.1 Diagnosis796 Titroprocessor, Instructions for use26026013 Appendix13.1 Diagnosis13.1.1 GeneralThe 796 Titroprocessor is a very precise and depe

13. Appendix796 Titroprocessor, Instructions for use26126113.1.2 Prepare instruments for diagnostic test1.Power off.2.Disconnect all cables at rear,

13.1 Diagnosis796 Titroprocessor, Instructions for use26226213.1.3 To check displayWith this diagnostic step the LCD and its control unit are checked

13. Appendix796 Titroprocessor, Instructions for use26326313.1.5 To check bar-code readerWith this diagnostic step the bar-code reader can be checked

22. . InstallationInstallation796 Titroprocessor, Instructions for use21212.5 Safety informationIf failure or malfunctioning occurs during operation

13.1 Diagnosis796 Titroprocessor, Instructions for use264264

13. Appendix796 Titroprocessor, Instructions for use26526513.1.7 To check Remote interfaceWith this diagnostic step the interface Remote can be check

13.1 Diagnosis796 Titroprocessor, Instructions for use26626613.1.9 To check Analog Interface AWith this diagnostic step the analog inputs of Interfac

13. Appendix796 Titroprocessor, Instructions for use2672679.Connect Simulator to Titroprocessor accord. to Fig. 4.column C (see Fig. 1)Input 1 : -

13.1 Diagnosis796 Titroprocessor, Instructions for use26826813.1.10 To check Analog Interface BWith this diagnostic step the analog inputs of Interfa

13. Appendix796 Titroprocessor, Instructions for use26926913.1.12 Setting the servicing intervalAfter finishing the the test described above, update

13.2 Common variables796 Titroprocessor, Instructions for use27027013.2 Common variablesCommon variables can be used to store numerical values perman

13. Appendix796 Titroprocessor, Instructions for use271271by edit the variable was manually entered or al-tered[method] the method name stands for the

13.3 Key cards and access control796 Titroprocessor, Instructions for use27227213.3 Key cards and access controlThe user dialog of the Titroprocessor

13. Appendix796 Titroprocessor, Instructions for use273273The modification of the access control files can be called up under[Config.] [Access control

2.6 Safety information796 Titroprocessor, Instructions for use22222.6 Connections2.6.1 System components and peripheral devices685717717700685729700

13.3 Key cards and access control796 Titroprocessor, Instructions for use274274Softkeys[File] opens the file dialog window for storing or loading an a

13. Appendix796 Titroprocessor, Instructions for use275275No. of samplesDefines the number of samples to be processed.* indefinite number of samplesSi

13.3 Key cards and access control796 Titroprocessor, Instructions for use276276User User name for use with key card.edit. yes/no : with 'no&apos

13. Appendix796 Titroprocessor, Instructions for use27727713.3.4 Modifying an existing Access Control fileWhen opening the 'File' dialog on

13.4 Remote operation / Key simulation796 Titroprocessor, Instructions for use27827813.4 Remote operation / Key simulationThe Titroprocessor 796 can

13. Appendix796 Titroprocessor, Instructions for use279279Keyboard codes of the Titroprocessors 796The keyboard codes of characters and numbers corres

13.5 Validation / GLP796 Titroprocessor, Instructions for use28028013.5 Validation / GLPThe 796 Titroprocessor supports the monitoring of maintenance

13. Appendix796 Titroprocessor, Instructions for use281281Define sensor listPress the <GLP> key on the main and then the [Sensors] softkey.ÚÄÄÄ

13.5 Validation / GLP796 Titroprocessor, Instructions for use282282The following limits can be defined:Slope Electrode slopeZero point (mV) Asymmetry

13. Appendix796 Titroprocessor, Instructions for use283283Sensor test procedure:• After the start of the test the sensor must be immersed in the firs

22. . InstallationInstallation796 Titroprocessor, Instructions for use2323• 1 parallel printer connection for any external printer (only for models2.

13.5 Validation / GLP796 Titroprocessor, Instructions for use284284The method must contain the following results from the calculation formula:• Resul

13. Appendix796 Titroprocessor, Instructions for use285285ÚÄÄÄ Validation Method Definition ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

13.5 Validation / GLP796 Titroprocessor, Instructions for use286286sion of the endpoint volume (RE) against sample size(SS).Sample sizeasysStandard li

13. Appendix796 Titroprocessor, Instructions for use287287Explanation:It is recommended that all current data (methods and determinations) arestored b

13.6 Technical specifications796 Titroprocessor, Instructions for use28828813.6 Technical specificationsCompact titration and measuring instrument fo

13. Appendix796 Titroprocessor, Instructions for use289289Input tp tp >20 msOutputtptp >200 msVCEO = 40 VIC = 20 mAPrinter Type Thermal

13.6 Technical specifications796 Titroprocessor, Instructions for use290290Measurement group 1 or 2 (option) measurement groups each with• 2 high-imp

13. Appendix796 Titroprocessor, Instructions for use291291Ambient temperature Nominal operating range 5…40 °CStorage, transport –25…60 °CAmbient atmos

13.7 Warranty and certificates796 Titroprocessor, Instructions for use29229213.7 Warranty and certificates13.7.1 WarrantyThe warranty regarding our

13. Appendix796 Titroprocessor, Instructions for use29329313.7.2 EC Declaration of conformityThe METROHM AG company, Herisau, Switzerland hereby cert

Table of contentTable of content796 Titroprocessor, Instructions for use3 Configuration 343.1 Basic settings _______________________________________34

2.6 Safety information796 Titroprocessor, Instructions for use24242.6.3 External busThe external bus allows external instruments to be controlled by

13.7 Warranty and certificates796 Titroprocessor, Instructions for use29429413.7.3 Certificate of conformity and system validationThis is to certify

13. Appendix796 Titroprocessor, Instructions for use29529513.8 Scope of delivery and accessoriesScope of delivery and accessories13.8.1 Titroprocess

13.8 Scope of delivery and accessories796 Titroprocessor, Instructions for use29629613.8.2 OptionsAccessories to separate order at additional charge:

13. Appendix796 Titroprocessor, Instructions for use297297722 Rod stirrer for the sample changerRod stirrer 2.722.0020Stirrer propeller PP (104 mm) 6.

13.8 Scope of delivery and accessories796 Titroprocessor, Instructions for use298298Electrodes for Sample ChangersIt is recommended to use Longlife-El

14. Index796 Titroprocessor, Instructions for use29929914 Index– ...122; 185; 186! ...73; 21

14. Index796 Titroprocessor, Instructions for use300300<ññ><STOP>...81<ññ><TAB>... 5

14. Index796 Titroprocessor, Instructions for use301301calibration loop...182calibration of pH sensors...117calibration princ

14. Index796 Titroprocessor, Instructions for use302302EMC...291EMPTY...47; 48; 55; 195empty...

14. Index796 Titroprocessor, Instructions for use303303JJEIDA...291KKarl Fischer conditioning...114Karl Fische

22. . InstallationInstallation796 Titroprocessor, Instructions for use2525700685Dosimat B2Dosimat B1729Dosimat B3Dosimat B4EBusAddress 1EBusAddress 2E

14. Index796 Titroprocessor, Instructions for use304304numerical... 134; 151;... 163; 174; 180o ...

14. Index796 Titroprocessor, Instructions for use305305sample counter...186sample data... 83; 92; 124; 207sample data entry...

14. Index796 Titroprocessor, Instructions for use306306titration conditions... 134; 150;... 156; 161; 169titration curves

2.6 Safety information796 Titroprocessor, Instructions for use26262.6.5 Sensors / Electrodes1Ind A2 Ind A1 Ref Pol Pt100/1000Sensors ATitroprocessor

22. . InstallationInstallation796 Titroprocessor, Instructions for use27272.6.6 Connecting a balanceRS 232 Interface 1RS 232 Interface 2GThe followin

2.6 Safety information796 Titroprocessor, Instructions for use2828The data transmitted from the balance are directly interpreted by the 796 Ti-troproc

22. . InstallationInstallation796 Titroprocessor, Instructions for use29292.6.7 Connecting an external printerThere are various ways of connecting an

2.6 Safety information796 Titroprocessor, Instructions for use3030The following table shows the settings and cables needed to connect print-ers to one

22. . InstallationInstallation796 Titroprocessor, Instructions for use31312.6.9 Devices on the remote interfaceExternal peripheral devices such as pH

2.6 Safety information796 Titroprocessor, Instructions for use3232For the individual model series of Metrohm instruments different connectioncables ar

22. . InstallationInstallation796 Titroprocessor, Instructions for use3333With a suitable multiple cable (with special wiring) even several instrument

Table of contentTable of content796 Titroprocessor, Instructions for use6 Sample data and sample silo 926.1 Sample data entry ________________________

3.1 Basic settings796 Titroprocessor, Instructions for use34343 ConfigurationIn order to guarantee problem-free work with the 796 Titroprocessor it is

3. Configuration796 Titroprocessor, Instructions for use3535User level Switches between standard and expert user level.Standard = use of key cards pos

3.1 Basic settings796 Titroprocessor, Instructions for use3636The subsequent determinations in the same seriesof samples are given the file names DATA

3. Configuration796 Titroprocessor, Instructions for use3737Softkeys[Device header] opens the dialog window for the entry of aninstrument-specific, fo

3.2 Configuration of sample changers796 Titroprocessor, Instructions for use3838dimensions and other settings for this function arefixed. Details can

3. Configuration796 Titroprocessor, Instructions for use39393.2.1 Sample racksA sample rack is a turntable which accepts sample beakers and which isp

3.2 Configuration of sample changers796 Titroprocessor, Instructions for use4040Magnets insertedIn thisexample the code is:000110In order to allocate

3. Configuration796 Titroprocessor, Instructions for use4141Spec. The special position is a further special position whichcan be defined for each lift

3.2 Configuration of sample changers796 Titroprocessor, Instructions for use4242[Delete all] deletes all rack definitions.[Check code] carries out a s

3. Configuration796 Titroprocessor, Instructions for use43433.2.3 Basic configuration of a 717 Sample changerThe softkeys [Changer 1] and [Changer 2]

Table of contentTable of content796 Titroprocessor, Instructions for use8 Command Reference 1288.1 Titration modes ___________________________________

3.3 Interface configuration796 Titroprocessor, Instructions for use4444Power-up sequenceMOVE Beaker 1 to tower 1 Shift directio

3. Configuration796 Titroprocessor, Instructions for use45453.3.1 Setting the RS232 interfacesBaud rate Transmission speedData bit Number of data bit

3.3 Interface configuration796 Titroprocessor, Instructions for use4646The settings:CommunicationInt. RS232 interface for the connection to a PCCommun

3. Configuration796 Titroprocessor, Instructions for use47473.4 Buret unitsThe definition of a buret unit is used to fix the parameters of different

3.4 Buret units796 Titroprocessor, Instructions for use48483.4.1 Tubing definitionsÚÄÄÄConfiguration ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ(Program version 5.796.

3. Configuration796 Titroprocessor, Instructions for use49493.4.2 700 Dosino, dosing unitsThe tubing dimensions for dosing units:Type Name of the bur

3.4 Buret units796 Titroprocessor, Instructions for use5050Dosing and filling speeds for PREP and EMPTYÚÄÄÄ Tubings ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

3. Configuration796 Titroprocessor, Instructions for use51513.4.3 685 Dosimat, exchange unitsFor the 685 Dosimat exchange units the types of buret un

3.4 Buret units796 Titroprocessor, Instructions for use5252largest possible value. Whenever possible 'max' shouldbe selected, except for vis

4. Manual operation796 Titroprocessor, Instructions for use53534 Manual operationFor manual operation or for monitoring peripheral devices (dosing dev

Table of contentTable of content796 Titroprocessor, Instructions for use10 Curves and re-evaluation 21910.1 Single curves ____________________________

4.2 Dosing devices796 Titroprocessor, Instructions for use5454B1, B2 Measuring electrode of measuring group‘Sensors B’Bdiff Differential amplification

4. Manual operation796 Titroprocessor, Instructions for use5555Buret unitsIn order that the Prepare (PREP) and Empty (EMPTY only for 700 Dosino)functi

4.2 Dosing devices796 Titroprocessor, Instructions for use5656well as the outlet port (for Dosinos) through which the reagent will beexpelled in this

4. Manual operation796 Titroprocessor, Instructions for use57574.3 SensorsDepending on the Titroprocessor model, two measuring groups could bebuilt i

4.3 Sensors796 Titroprocessor, Instructions for use5858ÚÄÄÄ Messung ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³ ³³ Meas. parameters A1 ³³

4. Manual operation796 Titroprocessor, Instructions for use5959The buffers required for the calibration of a pH sensor can be definedindividually or a

4.3 Sensors796 Titroprocessor, Instructions for use6060Measuring parametersSignal drift Limits for signal drift0.5…2…999 mV/min | offThe measurement i

4. Manual operation796 Titroprocessor, Instructions for use6161Buffer solutionsAs buffer solutions can have very different compositions it is necessar

4.3 Sensors796 Titroprocessor, Instructions for use6262Calibration data are allocated to a measuring input (e.g. A1) and stored inthe Titroprocessor.

4. Manual operation796 Titroprocessor, Instructions for use63634.4 Sample changerOne or two sample changers (if connected) can be operated from thesa

1. Introduction796 Titroprocessor, Instructions for use111 Introduction1.1 Range of applicationsThe Metrohm 796 Titroprocessor is a very versatile an

4.4 Sample changer796 Titroprocessor, Instructions for use6464Softkeys[Reset changer] initializes the sample changer. When a sample rack hasbeen excha

4. Manual operation796 Titroprocessor, Instructions for use65654.4.1 Sample rack and lift functionsFor safety reasons it is not possible to rotate a

4.5 Stirrer at measuring interface796 Titroprocessor, Instructions for use6666[Shift auto] rotates the rack automatically. The shortest rotary path is

4. Manual operation796 Titroprocessor, Instructions for use67674.7 PrintThe built-in A4 thermal printer or any other printer which has beenconnected

4.7 Print796 Titroprocessor, Instructions for use6868Softkeys[Select determ.] opens a selection list of the determinations in the workingmemory. A dif

4. Manual operation796 Titroprocessor, Instructions for use6969Sample Silo List of all sample data in the sample siloDevices & ManualControl Repor

4.7 Print796 Titroprocessor, Instructions for use7070ÚÄÄÄ Print Determ.report ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿³

5. Methods and determinations796 Titroprocessor, Instructions for use71715 Methods and determinations5.1 GeneralA method must be loaded in the workin

5.2 Method editor796 Titroprocessor, Instructions for use72725.2.1 Load methodThe [File] softkey is pressed in order to load an existing method; this

5. Methods and determinations796 Titroprocessor, Instructions for use7373In order to define the command sequence enter the required command inthe comm

1.2 Instrument description796 Titroprocessor, Instructions for use22• Up to twelve Dosinos or Dosimats can be addressed for titrating or dos-ing task

5.2 Method editor796 Titroprocessor, Instructions for use7474command will not be carried out until this time has elapsed and thecommand involved has b

5. Methods and determinations796 Titroprocessor, Instructions for use7575[* Param] Titration and measuring modes have extended sets ofparameters for s

5.2 Method editor796 Titroprocessor, Instructions for use7676The definition of the determination report is made in the report window of themethod edit

5. Methods and determinations796 Titroprocessor, Instructions for use7777print Report printoutyes | noWith 'yes' a report will be printed ou

5.2 Method editor796 Titroprocessor, Instructions for use7878Note:A method is always edited directly in the working memory.• It is possible to alter

5. Methods and determinations796 Titroprocessor, Instructions for use7979Example of a determination report:METROHM Titroprocessor 796 0108 5.796.00

5.3 Determinations796 Titroprocessor, Instructions for use80805.3 DeterminationsA method can be used to carry out a determination on a sample which c

5. Methods and determinations796 Titroprocessor, Instructions for use8181When a sample series is being processed with the autostart functionswitched o

5.3 Determinations796 Titroprocessor, Instructions for use8282• Enter your name in the 'User' field.• Now enter the status settings. The st

5. Methods and determinations796 Titroprocessor, Instructions for use8383Determ.name the file name of the current determination appearshere.Auto start

1. Introduction796 Titroprocessor, Instructions for use331.3 Instrument description1.3.1 Model versionsThe 796 Titroprocessor is available in four v

5.3 Determinations796 Titroprocessor, Instructions for use8484• Press the <MAN CONTROL> key in order to be able to operate thedosing device man

5. Methods and determinations796 Titroprocessor, Instructions for use85855.3.3 System variablesA determination produces the following system variable

5.3 Determinations796 Titroprocessor, Instructions for use8686Auto save functionWith the aid of the auto save function (Auto save 'on') dete

5. Methods and determinations796 Titroprocessor, Instructions for use87875.3.5 Sample seriesIf a sample series is to be carried out automatically the

5.3 Determinations796 Titroprocessor, Instructions for use8888The status window should be similar to that shown below:ÚÄÄÄ Status ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

5. Methods and determinations796 Titroprocessor, Instructions for use8989one line each time sample data are inserted.³ 9 971120/5

5.3 Determinations796 Titroprocessor, Instructions for use90905.3.6 Course of a sample seriesThe following points should be taken into account before

5. Methods and determinations796 Titroprocessor, Instructions for use9191Statistics and sample seriesIn certain cases it may be a good idea to set the

6.1 Sample data entry796 Titroprocessor, Instructions for use92926 Sample data and sample siloA data record can be entered for each sample. This data

6. Sample data and sample silo796 Titroprocessor, Instructions for use9393A precondition for this is the correct definition of the type of balance and