Metrohm 848 Titrino plus Manual Download

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10.6 Remote interface

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

124

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848 Titrino plus

10.6.2

Status diagram of the remote interface

Titration mode DET/MET

[START]

Output 0

Output 1

Output 3

Output 2

Output 4

ready/EOD

Activ./Dos.

condOK

Error

Start

Stop

Input 0

Input 1

EOD

[STOP]

Titr/Determ

Figure 23

Remote status diagram DET/MET

Titration mode SET

[START]

Output 0

Output 1

Output 3

Output 2

Output 4

ready/EOD

Activ./Dos.

condOK

Error

Start

Stop

Input 0

Input 1

EOD

[START]

[STOP]

Titr/Determ

Figure 24

Remote status diagram SET

Summary of Contents for 848 Titrino plus

Page 1: ...848 Titrino plus Manual 8 848 8008EN 2015 01 19...

Page 2: ......

Page 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 848 Titrino plus Manual 8 848 8008EN 2015 01 19 jb ebe...

Page 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...

Page 5: ...iew of the instrument 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 Connecting a sensor 9 3 3 Connecting a stirrer 11 3 4 Connecting a balanc...

Page 6: ...Sending the sample size from a balance 35 5 8 Carrying out a determination 35 5 9 Live modifications 37 5 9 1 Editing the sample data of the running determination 37 5 9 2 Editing the sample table whi...

Page 7: ...art conditions 83 7 2 2 Titration parameters 84 7 2 3 Stop conditions 89 7 2 4 Evaluation 90 7 2 5 Calculation 93 7 2 6 Statistics 95 7 2 7 Reports 95 7 3 Endpoint titrations SET 97 7 3 1 Conditioning...

Page 8: ...6 1 Pin assignment of the remote interface 122 10 6 2 Status diagram of the remote interface 124 10 7 Remote control via an RS 232 connection 125 10 7 1 Commands and variables 126 10 8 Arithmetic algo...

Page 9: ...g the USB hub with USB stick printer and the 6 2148 030 RS 232 USB Box for connecting balances 15 Figure 13 Connecting a remote cable 15 Figure 14 Attaching the exchange unit 16 Figure 15 Reagent dosi...

Page 10: ......

Page 11: ...gent is added in variable volume steps Measuring modes pH pH measurement U potentiometric voltage measurement Ipol voltametric measurement with selectable polarization cur rent Upol amperometric measu...

Page 12: ...mat enables automatic addition of an auxiliary solution 1 1 3 Intended use The 848 Titrino plus is designed for usage as a titrator in analytical labora tories Its main application field is volumetric...

Page 13: ...r in the software File New Menu or menu item Next Button or key WARNING This symbol draws attention to a possible life threat ening hazard or risk of injury WARNING This symbol draws attention to a po...

Page 14: ...The electrical safety when working with the instrument is ensured as part of the international standard IEC 61010 WARNING Only personnel qualified by Metrohm are authorized to carry out service work...

Page 15: ...used to loosen connections Check the connections regularly for leakage If the instrument is used mainly in unattended operation then weekly inspections are manda tory 1 3 4 Flammable solvents and che...

Page 16: ...1 3 Safety instructions 6 848 Titrino plus More details about the disposal of your old equipment can be obtained from your local authorities from waste disposal companies or from your local dealer...

Page 17: ...ument 848 Titrino plus 7 2 Overview of the instrument 2 5 4 3 1 Figure 1 Front 848 Titrino plus 1 Piston rod Of the dosing drive 2 Contact pins For the data chip 3 Coupling For switching the flat stop...

Page 18: ...ting reference electrodes Socket B 4 mm 4 Mains connection socket 5 USB OTG connector For connecting printers USB sticks USB hubs etc 6 MSB connector Metrohm Serial Bus For connecting a stirrer Mini D...

Page 19: ...rived com plete and without damage by comparing it with the delivery note 3 1 3 Location The instrument has been developed for operation indoors and may not be used in explosive environments Place the...

Page 20: ...e 4 Connecting a reference electrode Connecting a temperature sensor or an electrode with inte grated temperature sensor Temperature sensors of the Pt1000 or NTC type can be connected to the Temp conn...

Page 21: ...ection of the cable by means of a pull out protection feature If you wish to remove the plug then you must first retract the outer plug sleeve 3 3 Connecting a stirrer You can connect the following st...

Page 22: ...onnect the 9 pin plug of the respective balance connecting cable to the RS 232 1 connector Consult the user manual of the balance in order to select the correct connecting cable The parameters for the...

Page 23: ...or connecting balances or for the RS 232 remote control USB hub with or without an own power supply The 6 2147 000 numerical USB keypad serves for comfortable numer ical input and for navigating in th...

Page 24: ...letters and numbers Keypad with numerical keypad with USB cable If you wish to connect several different instruments without own power supply then you must possibly use a USB hub with own power suppl...

Page 25: ...he 6 2148 030 RS 232 USB Box for connecting balances 3 6 Connecting instruments to the remote connector The 848 Titrino plus can be integrated in an automation system with the aid of a remote cable Fi...

Page 26: ...plus 3 7 Attaching the exchange unit Figure 14 Attaching the exchange unit To attach the exchange unit proceed as follows 1 Slide the exchange unit from the front onto the 848 Titrino plus and push a...

Page 27: ...easured value acceptance is drift controlled equilibrium titra tion or after a waiting time Equivalence points are evaluated automati cally U mV V mL Figure 15 Reagent dosing for DET 4 2 Monotonic equ...

Page 28: ...accordance with special standards and titrations for which reagent overflow must be avoided The titration termi nation at the endpoint takes place either drift controlled or after a waiting time The...

Page 29: ...ss takes some time If a buret unit has been attached then a request appears to carry out the PREP function All tubings and the cylinder are rinsed with the PREP Preparing function The preparing of the...

Page 30: ...time then the instrument will not be switched off 5 2 Fundamentals of operation 5 2 1 The keypad Figure 18 Keypad 848 Titrino plus BACK Apply the input and exit the dialog Move the selection bar eithe...

Page 31: ...s conditioned busy A method has been started hold A method has been paused Some dialogs have a so called function bar on the bottom line The func tions contained therein can be selected with the arrow...

Page 32: ...ying the modification Clear The content of the input field is deleted com pletely The character left of the cursor is deleted back space Text editor only The cursor within the input field is shifted t...

Page 33: ...his is trig gered as soon as a formula is applied The generally valid rules of priority apply for the calculation operations Variable Description C00 Sample size EP Volume of endpoint EP 1 9 CI Sample...

Page 34: ...asured value prior to the processing of the start conditions MSM Start measured value i e measured value after the pro cessing of the start conditions MCV End volume i e total dosed volume at the end...

Page 35: ...L Unit of the sample size mL Content mol L Content in mol L Unit of the sample size mL Content g L Content in g L Unit of the sample size mL Content ppm Content in ppm Unit of the sample size g Titer...

Page 36: ...the selection list and apply with OK Press BACK The method is now loaded and is displayed in the main dialog under Method If a new method has been created then the individual parameters can be modifie...

Page 37: ...ying the name Press BACK The method will be saved and the method table is displayed Entering a new name Press OK The text editor opens Enter a method name max 12 characters and apply with Accept or BA...

Page 38: ...der Method 5 4 4 Exporting a method The methods can be 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 ex...

Page 39: ...he sample data for a sample series can be entered in a table see Chapter 5 7 page 32 Selection on off Default value off Autostart If this parameter is activated a new determination is started automati...

Page 40: ...he sample data for up to 99 sam ples can be entered see Chapter 5 7 page 32 Automatic request immediately after the start of the determination see Chapter 5 6 2 page 31 You can also send the sample si...

Page 41: ...equesting sample data at the start of the determination The sample data can be requested immediately after the start of the deter mination in order to ensure that the sample data entry is not forgotte...

Page 42: ...2 page 38 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 contr...

Page 43: ...ble 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 5 7 2 Editing the sample data You will se...

Page 44: ...ication can be used in calculations as the variable CI1 Entry max 10 characters Default value empty ID2 Sample identification The sample identification can be used in calculations as the variable CI2...

Page 45: ...the Sample data dia log is displayed If the editing dialog for the sample size is opened then the sent value will be ignored 5 8 Carrying out a determination The sample size can be entered in the fol...

Page 46: ...The titration starts and the curve is displayed The axes are scaled automatically Using Hold pauses the run Con tinue then takes its place on the display It can be used to resume the run The stirring...

Page 47: ...ning In calculations always the sample data entered at the end of the titration in the main dialog is used Proceed as follows to edit the sample data 1 Displaying the main dialog Press BACK The main d...

Page 48: ...is running You can insert new lines or delete existing ones or edit sample data while a determination is running NOTE We recommend that the editing dialogs always be closed in order to ensure that no...

Page 49: ...ption of editing these in the sample table The first line always contains the sample data of the running determination Simply select for this purpose the Sample table see Editing the sample table page...

Page 50: ...item Live dialog in the main menu and press OK or Press BACK in the main dialog The live dialog is displayed once again 5 10 Results Menu Results After the completion of the titration the results dial...

Page 51: ...e curve The data volume measured value time etc for the respective measur ing point is indicated on the right hand side Recalculating NOTE Recalculation cannot be undone All of the results are recalcu...

Page 52: ...tional data Reset Delete all statistics data Increase Add a further determination to the determination series Displaying statistical details Additional data from the determination series can be displa...

Page 53: ...as faulty and had to be removed from the statistics The second number in the Statistics line will be increased automatically by one 5 12 Printing a report manually Menu Print reports Proceed as follow...

Page 54: ...inations The individual determinations with the respective sample size the mean value the absolute and the relative standard deviation are printed out for each result PC LIMS Machine readable report w...

Page 55: ...l ume ADD Dose a specified volume Preparing the buret unit PREP The PREP function is used to rinse the cylinder and tubings of the buret unit and fill them air bubble free You should carry out this fu...

Page 56: ...ith OK Preparing is carried out Continuous dosing DOS Continuous dosing will be carried out with the DOS function for as long as you keep the START key pressed down Proceed as follows 1 Open the manua...

Page 57: ...the dosed volume is displayed When the volume of one cylinder has been dosed the dosing cylinder will be refilled automatically 5 Fill the cylinder Press STOP or BACK The dosing cylinder is filled If...

Page 58: ...filling rates depend on the cylinder volume see Chapter 10 1 1 page 117 Enter the desired volume Enter the dosing rate Enter the filling rate 4 Start dosing Press START The status changes to busy the...

Page 59: ...m In the function bar select the measuring mode and press OK 3 Configure the measuring mode Select the desired electrode from the sensor list The selection depends on the measuring mode Sensors are de...

Page 60: ...onnected stirrer manually Proceed as follows 1 Opening the manual control In the main dialog select Menu and press OK The main menu opens Select the menu item Manual control and press OK Manual contro...

Page 61: ...rrer In the function bar select On and press OK The stirrer is started and stirs at the rate which has been set Off is now displayed in the function bar 4 Switching off the stirrer In the function bar...

Page 62: ...parameter will only be printed if a designation has been defined Entry max 10 characters Default value empty Serial number Serial number of the instrument This is printed as a part of the instrument i...

Page 63: ...s can only be loaded but not deleted exported or created NOTE If the limited dialog for routine operation is activated then the expert dialog cannot be activated during ongoing operation To change the...

Page 64: ...the progress bar appears also press the arrow key or repeatedly This method will however cause the contrast to be modified by several steps Beep If this parameter is activated then a short beep will s...

Page 65: ...for the sensor be entered in addition These characteristics are listed in the specifications of the sensor Selection Pt1000 NTC Default value Pt1000 R 25 C This parameter is visible only when Tempera...

Page 66: ...is not possible to use the same name twice e g for a pH electrode and for a metal electrode Edit Edit the data of the selected sensor see following chapter New Add a new sensor to the list see followi...

Page 67: ...temp This parameter is only visible with pH electrodes Temperature at which the last calibration was carried out Input range 20 0 150 0 C Default value 25 0 C Calibration date This parameter is only...

Page 68: ...et unit is attached only for intelligent buret units An unlimited number of solu tions in buret units with data chip can be added to the solution list The number of solutions in buret units without da...

Page 69: ...ill be added to the selection list The previous entry will be overwritten as soon as the new unit has been defined A blank entry can be generated this way as well Titer Titer of the solution Input ran...

Page 70: ...o called common variables These variables remain saved in the instrument and can be used in future calculations Common variables are useful e g for the following applications Determination of a blank...

Page 71: ...tem Parameters Calculation and press OK Select the result whose value is to be assigned to a common vari able In the function bar select Edit and press OK 2 Adjusting the result properties Select the...

Page 72: ...larly an existing backup can be reloaded Import Import the selected method Delete Delete the selected method Backup Create a backup of all data and settings on the USB flash drive NOTE Only one backup...

Page 73: ...with all of the important data for a determination It can be saved as follows as a TXT file on a USB flash drive to a LIMS via an RS 232 interface The 6 2148 030 RS 232 USB Box is required for this p...

Page 74: ...US French FR German CH German DE Spanish ES Default value English US Balance If you have connected a balance then you must define the balance type here Selection AND Mettler Mettler AT Mettler AX Ohau...

Page 75: ...Parity Type of parity testing Selection even none odd Default value none Handshake Type of the data transfer protocol Selection hardware software none Default value hardware NOTE If communications pr...

Page 76: ...re 5XXXyyyy bin where XXX yyyy Instrument type e g 848 for the 848 Titrino plus Program version Language files They can be recognized by means of the two digit language code in the file name A languag...

Page 77: ...tarted it runs automatically At the end of the process the instrument will be switched off automatically and switched back on again No user intervention is required 6 7 2 Diagnosis functions Electroni...

Page 78: ...started During this period substances such auxiliary solution can be added with a Dosimat parameterization on the Dosimat However this requires that the Activation pulse be enabled Input range 0 999 9...

Page 79: ...d during the request If the parameter is switched off the titration will be started in the background Selection on off Default value on 7 1 2 Titration parameters Menu Parameters Titration parameters...

Page 80: ...icker titrations If you are using a dosing device with a small cylinder volume then a smaller measuring point density value may be beneficial However you should also set a smaller signal drift and a h...

Page 81: ...der volume see Chapter 10 1 1 page 117 Input range 0 01 166 00 mL min Selection max Default value max Signal drift This parameter is visible only when Titration rate user Maximum permissible drift for...

Page 82: ...visible only when Titration rate user The measured value is not accepted until the minimum waiting time has elapsed even if the signal drift has already been reached The minimum waiting time is only...

Page 83: ...ution from the solution list We recommend always selecting the solution This ensures that the correct data titer concentra tion etc is always used for the calculation Solutions are defined under Syste...

Page 84: ...carried out when the determi nation is started This parameter is available only with I pol and U pol determinations Selection on off Default value off Stirrer The stirrer is switched on at the start...

Page 85: ...e The titration is canceled when the specified measured value has been reached since the start of the titration Measuring mode pH Input range 20 000 20 000 Selection off Default value off Measuring mo...

Page 86: ...r 10 1 1 page 117 Input range 0 01 166 00 mL min Selection max Default value max 7 1 4 Evaluation Menu Parameters Evaluation The parameters for the evaluation of the titration curve are defined under...

Page 87: ...equivalence point criterion found ERC Equivalence point Recogni tion Criterion is compared with this value Equivalence points whose ERC is less than the value defined here will be ignored Input range...

Page 88: ...Measuring mode pH Input range 20 000 20 000 Selection off Default value off Measuring mode U Ipol Input range 1 250 0 1 250 0 mV Selection off Default value off Measuring mode Upol Input range 125 00...

Page 89: ...aller than the defined EP criterion will not be recognized The ERC is displayed in the results dialog for each discovered and recog nized EP If you adjust the EP criterion after the fact in order to r...

Page 90: ...fault value empty Decimal places Number of decimal places used to display the result Input range 0 5 Default value 2 Result unit The result unit is displayed and saved along with the result Selection...

Page 91: ...is activated then statistics calculations will be carried out for all of the defined results Selection on off Default value off Number of determinations The number of determinations that are carried...

Page 92: ...ons Mean value as well as absolute and relative standard deviation Selection on off Default value off Measuring point list Output of the measuring point list Selection on off Default value off Paramet...

Page 93: ...e added with a Dosimat parameterization on the Dosimat However this requires that the Activation pulse be enabled Input range 0 999 999 s Default value 0 s Start volume Volume that is dosed prior to t...

Page 94: ...rted in the background Selection on off Default value on 7 2 2 Titration parameters Menu Parameters Titration parameters Under Titration parameters the parameters influencing the run of the entire tit...

Page 95: ...volume increments are used for determining blank values or with very asymmetrical curves The accuracy of the evaluation cannot be increased by using smaller increments as the measured value changes b...

Page 96: ...the titration reaction pro ceeds slowly or the electrode is slow to respond Measuring mode Upol Input range 0 01 99 90 A min Default value 50 00 A min Selection off off Measured value acceptance will...

Page 97: ...ection of the sensor from the sensor list The selection depends on the measuring mode Sensors are defined under System Sensors Selection Selection of configured sensors Solution Selection of the solut...

Page 98: ...is made that the electrode is properly connected and that no short circuit is present The electrode test is carried out when the determi nation is started This parameter is available only with I pol...

Page 99: ...e The titration is canceled when the specified measured value has been reached since the start of the titration Measuring mode pH Input range 20 000 20 000 Selection off Default value off Measuring mo...

Page 100: ...er 10 1 1 page 117 Input range 0 01 166 00 mL min Selection max Default value max 7 2 4 Evaluation Menu Parameters Evaluation The parameters for the evaluation of the titration curve are defined under...

Page 101: ...A Default value 125 00 A EP criterion The equivalence point criterion found ERC Equivalence point Recogni tion Criterion is compared with this value Equivalence points whose ERC is less than the valu...

Page 102: ...Only the equivalence point with the greatest ERC value i e the steep est jump will be recognized last Only the last equivalence point will be recognized Fixed EP1 at The associated volume will be int...

Page 103: ...f the measured value changes before and after the jump In certain cases only three or only a single summand are taken into account EPs whose ERC is smaller than the defined EP criterion will not be re...

Page 104: ...ion see Chapter 5 3 page 23 Entry 44 characters Default value empty Decimal places Number of decimal places used to display the result Input range 0 5 Default value 2 Result unit The result unit is di...

Page 105: ...ontains Statistics If this function is activated then statistics calculations will be carried out for all of the defined results Selection on off Default value off Number of determinations The number...

Page 106: ...ividual determinations Mean value as well as absolute and relative standard deviation Selection on off Default value off Measuring point list Output of the measuring point list Selection on off Defaul...

Page 107: ...his volume drift has been reached and the titration can be started Input range 1 999 L min Default value 20 L min Drift correction The endpoint volume can be corrected for drift This involves multiply...

Page 108: ...which conditioning may take place Con ditioning is stopped when the specified time has elapsed Input range 0 999 999 s Selection off Default value off 7 3 2 Start conditions Menu Parameters Start cond...

Page 109: ...fault value 0 s Request sample ID Selection of the sample identification that is queried in the method run Selection off ID1 ID2 ID1 ID2 Default value off Request sample size If this parameter is acti...

Page 110: ...the type of dosing drive are checked The validity of the titer is checked for the selected solution at the start of the determination Selection Selection of configured solutions not defined Default v...

Page 111: ...118 The optimum stirring rate can be tested in the manual control The algebraic sign of the stirring rate changes the stirring direction When the stirrer is viewed from above this means counterclockw...

Page 112: ...ion is fulfilled during this time see Chapter 7 3 6 page 105 The entry of an extraction time may be advisable for instance for the titration of sparingly soluble samples Input range 0 999 999 s Defaul...

Page 113: ...tion parameters can be modified The settings of the individual titration rates are listed in table 3 page 104 Dynamics This parameter is visible only when Titration rate user This parameter defines th...

Page 114: ...n This parameter has a decisive influence on the titration rate and thus also on the accuracy The smaller the selected minimum rate the slower the titration Input range 0 01 9999 00 L min Default valu...

Page 115: ...elapse after the last dosing and the titration is then stopped Input range 0 999 s Default value 10 s 7 3 5 Control parameters EP2 Menu Parameters Control parameters EP2 The control parameters for th...

Page 116: ...e Chapter 10 1 1 page 117 Input range 0 01 166 00 mL min Selection max Default value max 7 3 7 Calculation 7 3 7 1 General Menu Parameters Calculation A maximum of five calculations can be defined in...

Page 117: ...splayed and saved along with the result Selection mol L mmol L g L mg L mg mL ppm g mg mL mg piece C L mL min User defined Default value User defined A user defined unit can be created This will be ad...

Page 118: ...alue off Number of determinations The number of determinations that are carried out for the statistics calcu lations If an additional determination has to be added to the determination series because...

Page 119: ...Selection on off Default value off Measuring point list Output of the measuring point list Selection on off Default value off Parameters All of the parameters of the current method are printed out in...

Page 120: ...electrode is slow to respond Min waiting time The measured value is not accepted until the minimum waiting time has elapsed even if the signal drift has already been reached The minimum waiting time...

Page 121: ...irection When the stirrer is viewed from above this means counterclockwise rotation clockwise rotation Input range 15 15 Default value 8 Sample changer This parameter must be switched on for automatic...

Page 122: ...Up to five calibration buffers can be defined in the method The auto matic buffer recognition is not activated in this case The buffers must be measured precisely in the specified sequence Number of...

Page 123: ...ction on off Default value off Parameters All of the parameters of the current method are printed out in the para meter report Selection on off Default value off PC LIMS The PC LIMS report is a machin...

Page 124: ...l Qualification OQ are offered by Metrohm represen tatives as a service They are carried out by trained employees using stan dardized qualification documents and in accordance with the currently appli...

Page 125: ...increase the control range Define Titration rate user and reduce the maximum rate Max rate Define Titration rate user and reduce the minimum rate Min rate Stir faster Arrange the electrode and buret t...

Page 126: ...Switch the 848 Titrino plus off and then back on again Use a USB hub and connect the keyboard and mouse to the USB hub The keyboard or the mouse is not compatible Use a model which fulfills the requir...

Page 127: ...values ranging from 0 01 to 166 00 mL min can always be entered When the function is carried out the rate will be if necessary decreased automatically to the highest possible value 10 1 2 Parameters f...

Page 128: ...nt from a connected bal ance The sample size is transmitted as a number with up to ten charac ters including algebraic sign and decimal point Sample size and unit are sent as a single character string...

Page 129: ...ata transfer rate is however in any case 12 MBit s Keyboards PC mice and barcode readers are so called HID devices Human Interface Device and can be connected via a USB hub only Printers should also b...

Page 130: ...n in the editing dialog Key on the USB keyboard BACK Esc OK enter key or Enter on the numerical keypad STOP Ctrl S START Ctrl G backspace Clear Delete Cancel Ctrl Q Accept Esc NOTE The lettering of th...

Page 131: ...0 5 System initialization In very rare instances a faulty file system e g because of a program crash may lead to an impairment of program functioning The internal file system must be initialized in su...

Page 132: ...during this time 3 Confirming the initialization NOTE If the request is not confirmed within 8 s then the procedure will be canceled Press BACK twice Initialization is started The process takes approx...

Page 133: ...0 Ready EOD 2 Output 1 Activate Dosimat 3 Output 2 Titration 4 Output 3 Cond OK 5 Output 4 Error 6 0 volt GND 7 5 volts 8 Input 0 Start 9 Input 1 Stop Inputs 5 V approx 5 k Pull up tp tp 100 ms active...

Page 134: ...tput 3 Output 2 Output 4 ready EOD Activ Dos condOK Error Start Stop Input 0 Input 1 EOD STOP Titr Determ Figure 23 Remote status diagram DET MET Titration mode SET START Output 0 Output 1 Output 3 Ou...

Page 135: ...d via an RS 232 connection For this a 6 2148 030 RS 232 USB Box is necessary Connect the RS 232 USB Box to the USB interface of the instrument The RS 232 USB Box has two connectors for RS 232 instrume...

Page 136: ...with the control characters CR LF as terminator The acknowledgements of the instrument will also be transferred with CR LF as terminator The instrument does not send spontaneous messages 10 7 1 Comman...

Page 137: ...the instrument Comment OK Command executed E1 Method not found E2 Invalid variable E3 Invalid command 10 8 Arithmetic algorithms in the 848 Titrino plus Numerical format The software of the 848 Titri...

Page 138: ...rmaco peia USP If the digit at the first dropped decimal place is 1 2 3 or 4 then it will be rounded off if this digit is 5 6 7 8 or 9 then it will be rounded up Negative digits will be rounded in acc...

Page 139: ...lso rounded off to three decimal place this yields 1 235 g L I e you obtain the lowest losses in accuracy with rounding when you select the application and the numerical format in such a way that the...

Page 140: ...accuracy 0 003 1 digit without sensor error under reference conditions Measuring mode U Measuring range 1 200 1 200 mV Resolution 0 1 mV Measuring accuracy 0 2 mV 1 digit without sensor error under r...

Page 141: ...120 A Resolution 0 01 A Measuring accuracy 11 1 3 Temperature A measuring input Temp for temperature sensors of the Pt1000 or NTC type with automatic temperature compensation R 25 C and B value can b...

Page 142: ...interface 11 4 Power connection Supply voltage 100 240 V 10 Frequency 50 60 Hz Power consump tion 45 W Fuse 2 2 0 ATH electronic overload protection 11 5 Safety specifications This instrument fulfills...

Page 143: ...s which have to be followed by the user in order to ensure safe operation of the instrument 11 6 Electromagnetic compatibility EMC Emission Standards ful filled EN IEC 61326 1 EN IEC 61000 6 3 EN 5502...

Page 144: ...25 C 3 C Relative humidity 60 Operating temper ature status Instrument in operation at least 30 min Validity of the data After adjustment 11 9 Dimensions Material of hous ing Poly butylene terephthala...

Page 145: ...as fol lows Downloading the accessories list 1 Go to the Metrohm website http www metrohm com com 2 Click on The Search webpage will be displayed 3 Enter a search term relating to the instrument into...

Page 146: ...instrument using the search as described above this may be due to the instrument not being sold anymore Using the article number you can download accessories lists for all instruments as follows Downl...

Page 147: ...zable electrode 8 Redox electrode 8 Reference electrode 8 Electrostatic charge 5 End of Determination EOD 125 ERC 79 93 Evaluation DET 76 78 MET 90 93 Exchange unit Attach 16 Expert dialog 53 F Fillin...

Page 148: ...ne 34 Modify live 38 Sensor 56 Add 56 Connect 9 Delete 56 Edit 56 Sensor connector pH electrode 8 Polarizable electrode 8 Redox electrode 8 Reference electrode 8 Temperature sensor 8 Service 4 SET 1 1...

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