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4.4 Connecting sensors

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

18

￭￭￭￭￭￭￭￭

899 Coulometer

4.4

Connecting sensors

The measuring interface contains the following measuring inputs:

￭

Gen.

for a generator electrode

￭

Ind.

for a double Pt electrode

￭

Temp.

for a temperature sensor of the Pt1000 type

CAUTION

Under all circumstances, avoid mixing up the electrode cable from the
indicator electrode with the one from the generator electrode. Mark
the screw heads of the cables accordingly.

4.4.1

Connecting a generator electrode

Screwing the electrode cable to the generator electrode

1

Unscrew the cover of the generator electrode.

1

Figure 9

Unscrewing the cover from the generator electrode

2

Tighten the 6.2104.120 electrode cable to the generator electrode.

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Содержание 2.899.0010

Страница 1: ...899 Coulometer Manual Short Instructions 8 899 8002EN 2014 10 24...

Страница 2: ......

Страница 3: ...Metrohm AG CH 9100 Herisau Switzerland Phone 41 71 353 85 85 Fax 41 71 353 89 01 info metrohm com www metrohm com 899 Coulometer Manual Short Instructions 8 899 8002EN 2014 10 24 ebe...

Страница 4: ...is protected by copyright All rights reserved This document has been prepared with great care However errors can never be entirely ruled out Please send comments regarding possible errors to the addr...

Страница 5: ...trument 9 4 1 1 Packaging 9 4 1 2 Checks 9 4 1 3 Location 9 4 2 Setting up the titration cell for coulometry 10 4 2 1 Inserting the titration cell 10 4 2 2 Preparing the titration cell 10 4 2 3 Mounti...

Страница 6: ...ng a method template 34 5 4 3 Saving a method 35 5 4 4 Exporting a method 36 5 5 Control 37 5 6 Sample data 38 5 6 1 Entering sample data in the main dialog 38 5 6 2 Requesting sample data at the star...

Страница 7: ...ailed manual In addition to an introduction safety instructions and an overview of the instruments you will also find information about the installation and operation of the 899 Coulometer in addition...

Страница 8: ...erface permits you to connect a sample changer with oven module and to perform automated determinations As an alternative to the power supply with the power supply unit provi ded the 899 Coulometer ca...

Страница 9: ...ntion measures prescribed for laboratories is also mandatory 2 2 About the documentation CAUTION Please read through this documentation carefully before putting the instrument into operation The docum...

Страница 10: ...tips 2 3 Safety instructions 2 3 1 General notes on safety WARNING This instrument may only be operated in accordance with the specifica tions in this documentation This instrument has left the facto...

Страница 11: ...WARNING Electronic components are sensitive to electrostatic charges and can be destroyed by discharges Do not fail to pull the mains cable out of the mains connection socket before you set up or dis...

Страница 12: ...up spilled liquids and solids immediately Follow the safety instructions of the chemical manufacturer 2 3 5 Recycling and disposal This product is covered by European Directive 2002 96 EC WEEE Waste...

Страница 13: ...3 Overview of the instrument 899 Coulometer 7 3 Overview of the instrument 3 1 Front 1 2 3 Figure 1 Front 899 Coulometer 1 Magnetic stirrer For attaching the titration vessel holder 2 Display 3 Keypad...

Страница 14: ...emperature sensor connector Temp For connecting a temperature sensor of the type Pt1000 Two B sockets 2 mm 5 MSB connector MSB 1 Metrohm Serial Bus For connecting an external stirrer Mini DIN 8 pin 6...

Страница 15: ...y after receipt check whether the shipment has arrived com plete and without damage by comparing it with the delivery note 4 1 3 Location The instrument has been developed for operation indoors and ma...

Страница 16: ...l coulometry Set up the titration cell on the magnetic stirrer as follows 1 Attach the 6 2047 030 titration vessel holder to the magnetic stirrer 2 Insert the 6 1464 320 titration cell into the titrat...

Страница 17: ...tightly 2 Fill the molecular sieve up to of the height 3 Place a small cotton plug on the molecular sieve Do not pack the cotton too tightly 4 Seal the adsorber tube with the appropriate cover NOTE N...

Страница 18: ...p the titration cell as follows 1 Place the 6 1903 030 stirring bar in the titration cell 2 Cut the 6 2713 0x0 ground joint sleeves to the correct length and attach them to the ground joints of the in...

Страница 19: ...n using a generator electrode with a diaphragm 1 Fill approximately 5 mL of catholyte into the generator electrode 2 Fill approximately 100 mL of anolyte into the titration cell with the aid of the 6...

Страница 20: ...s into the titration cell 1 Attach the 6 2713 000 ground joint sleeve that has been cut to size to the ground joint of the 6 1437 000 stopper 2 Insert the stopper into the 6 1439 010 addition and aspi...

Страница 21: ...rge number of samples have to be processed the determination of the water content can be automated with the aid of a sample changer with oven module e g 885 Compact Oven SC You will find recommen ded...

Страница 22: ...2 Connect the power supply cable with the external power supply unit of the coulometer and with the power supply CAUTION Switch off the 899 Coulometer correctly by pressing the red STOP key before yo...

Страница 23: ...Box plug is protected against accidental disconnection of the cable by means of a pull out protection feature If you wish to pull out the plug you first need to pull back the outer plug sleeve CAUTIO...

Страница 24: ...der all circumstances avoid mixing up the electrode cable from the indicator electrode with the one from the generator electrode Mark the screw heads of the cables accordingly 4 4 1 Connecting a gener...

Страница 25: ...f the coulometer Figure 11 Connecting a generator electrode NOTE The electrode cable is protected against accidental disconnection of the cable by means of a pull out protection If you wish to pull ou...

Страница 26: ...2 Tighten the 6 2104 020 electrode cable to the indicator electrode 2 6 2104 020 Figure 13 Screwing the electrode cable to the indicator electrode Connecting the electrode cable to the coulometer 1 Pl...

Страница 27: ...ug sleeve 4 4 3 Connecting a temperature sensor A temperature sensor of the Pt1000 type can be connected to the Temp connector Connect the temperature sensor as follows 1 Insert the plugs of the tempe...

Страница 28: ...can use the magnetic stirrers 801 Stirrer or 803 Ti Stand Proceed as follows 1 Switch off the coulometer 2 Connect the connection cable of the magnetic stirrer to MSB 1 on the rear of the coulometer F...

Страница 29: ...using a 6 2151 100 USB MINI OTG USB A adapter see Chapter 4 7 page 25 2 Connect the 9 pin plug of the respective balance connecting cable to the RS 232 1 connector Consult the following list or conta...

Страница 30: ...ither ME 42500 hand switch or ME 46278 foot switch Mettler AT 6 2146 020 6 2125 010 Also from Mettler ME 42500 hand switch or ME 46278 foot switch Mettler AX MX UMX PG AB S PB S XP XS 6 2134 120 Mettl...

Страница 31: ...after switching on NOTE Many USB devices need a so called USB hub in order to work correctly A USB hub is a distributor to which several USB devices can be con nected USB hubs are available in specia...

Страница 32: ...connecting a balance a PC or to the RS 232 remote control With 6 2151 100 adapter USB MINI OTG USB A With USB hub With 6 2147 000 numerical USB keypad USB hub with or without an own power supply With...

Страница 33: ...then it is possible you will need to use a USB hub that does have its own power supply self powered The USB OTG connector of the 899 Coulometer is not designed for supplying power to several devices w...

Страница 34: ...2148 030 RS 232 USB Box 4 8 Connecting a sample changer to the remote connec tor The 899 Coulometer can be connected to a sample changer with oven module with the aid of the 6 2141 390 remote cable T...

Страница 35: ...pro cess takes some time The main dialog is displayed Switching off the instrument The instrument is switched off with the STOP key The fact that the key needs to be pressed down for an extended time...

Страница 36: ...unctions in the function bar OK Confirm the selection STOP Stop an ongoing method run or a manual func tion Switch the instrument on or off START Start a method run or a manual function 5 2 2 Structur...

Страница 37: ...arked with then additional settings are available in a subordinate dialog Use OK to access this dialog Example System settings Use the BACK key to return to the next higher level 5 2 4 Entering text a...

Страница 38: ...in the input field is shifted to the right by one character each time that OK is pressed BACK The modification is applied and the editing dialog is exited The BACK key has the same function as Accept...

Страница 39: ...5 Var List of additional variables see Variables page 33 stands for a sequential number that you must enter manually Exam ple if you apply the variable EP in the formula only EP is entered You will st...

Страница 40: ...y config ured except for a few parameters The following method templates can be selected KFC Coulometric Karl Fischer titration The blank value is not taken into account for the calculation KFC Blank...

Страница 41: ...as your own method A maximum of 100 methods can be saved To save a method proceed as follows 1 Opening the method table In the main dialog select Method and press OK The method table opens 2 Modifying...

Страница 42: ...exported to a connected USB flash drive NOTE This function is possible only if a USB flash drive is connected as an external storage medium To export a method proceed as follows 1 Opening the method t...

Страница 43: ...s started automatically at the end of a determination This continues until the number specified has been reached see Number of autostarts Selection on off Default value off NOTE If you are working wit...

Страница 44: ...me balances the sample identification and method can be also sent You will find precise information concerning this in the Appendix of the more detailed manual 5 6 1 Entering sample data in the main d...

Страница 45: ...deter mination in order to ensure that the sample data entry is not forgotten This automatic request is indispensable when you reweigh your samples The corresponding parameters must be activated unde...

Страница 46: ...2 page 48 Activating the sample table Proceed as follows to activate the sample table parameter Sample table on 1 Opening the main menu In the main dialog select Menu and press OK 2 Opening the contro...

Страница 47: ...sample table Insert Insert a new line above the line selected New Delete the sample table completely This function is visible only if the instrument is in ready status Store Save the sample table The...

Страница 48: ...by pressing again The sample data of the previous sample will be applied thereby Method Method used for processing the sample Selection Selection of stored methods empty Default value empty empty The...

Страница 49: ...ance If the sample size is sent directly from the balance then it will always be entered in a new line at the end of the sample table It does not matter which line is selected or whether the sample ta...

Страница 50: ...d See Chapter Methods Page 34 2 Starting conditioning Press START Conditioning starts Conditioning not OK is displayed until the endpoint is reached The working medium is titrated to the endpoint This...

Страница 51: ...dd the sample Afterward the request for the sample size appears 4 Entering the sample size Press OK The editing dialog opens Enter the sample size and apply with Accept or BACK 5 Starting the titratio...

Страница 52: ...e the current status of the conditioning in the status display at the upper right in the dialog window cond busy or cond ok 6 Returning to the conditioning dialog Press BACK The main dialog with the s...

Страница 53: ...determination continues to run in the background 2 Editing the sample data Edit the sample data and apply with Accept or BACK 3 Displaying the live dialog Press BACK or Select Menu and press OK Selec...

Страница 54: ...urposes Editing the sample table Proceed as follows to edit the sample table 1 Displaying the main dialog Press BACK The main dialog is displayed The determination continues to run in the background 2...

Страница 55: ...ain menu 5 9 3 Editing the live parameters Certain method parameters can be edited while a determination is being carried out The only parameters that can be modified are those that can be selected Ne...

Страница 56: ...ts Menu Results After the completion of the titration the results dialog is displayed The calculated result and details concerning the drift and the endpoint are shown in the overview Curve Display th...

Страница 57: ...le the calculation or the sample size has been modified 5 11 Statistics Menu Results Statistics The statistical overview of a determination series can be displayed in the Results dialog with the Stati...

Страница 58: ...atistics will be recalculated automati cally If several calculations are defined in the method then all the results will be removed from the statistics Deleting statistical data All statistical data i...

Страница 59: ...K The dialog window with the available reports opens 3 Selecting the report Select the desired report and press OK The report is printed out The following reports can be printed out manually Results R...

Страница 60: ...XT file to a connected USB flash drive or sent to a terminal program or a LIMS via an RS 232 interface The definition is made in the system settings Report as in method The reports that are defined in...

Страница 61: ...es the direction in which the stirring is done When viewing the stirrer from above this means counterclockwise rotation clockwise rotation 3 Switching on the stirrer In the function bar select On and...

Страница 62: ...ins voltage 5 Manual control Stirring 54 Method Export 36 Save 35 Method template Load 34 Molecular sieve Replace 11 MSB Connector 8 N Navigate 31 Numerical input 31 O Operation General 30 Oven module...

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