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Operation

Multi 3430

ba75865e02

12/2009

4.8.3

Temperature compensation

The calculation of the temperature compensation is based on the pre-
set reference temperature, 20 °C or 25 °C. It appears on the display as

Tr20

Tr25

You can select one of the following temperature compensation meth-
ods:

Nonlinear temperature compensation

(

nLF

) according to EN 27

888

Linear temperature compensation

(lin)

with adjustable coeffi-

cients of 0.000 ... 3.000 %

No temperature compensation (off)

Note

The reference temperature and temperature compensation are set in
the

Measurement

menu for the parameter, conductivity (see section

4.8.4).

Application tips

Select the following temperature compensations given in the table
according to the respective test sample:

Test sample

Temperature compensation

Display
indica-
tor

Natural water
(ground water, surface
water, drinking water)

nLF

according to EN 27 888

nLF

Ultrapure water

nLF

according to EN 27 888

nLF

Other aqueous solu-
tions

lin

Set linear

temperature coefficient
0.001 ... 3.000 %/K

lin

Salinity (seawater)

Automatic

nLF

according to

IOT

Sal

nLF

Summary of Contents for Multi 3430

Page 1: ...ba75865e02 12 2009 Multi 3430 Operating manual Digital pH dissolved oxygen conductivity meter for 3 digital IDS sensors pH...

Page 2: ...between this operating manual and your meter Also we cannot guarantee that there are absolutely no errors in this manual Therefore we are sure you will understand that we cannot accept any legal clai...

Page 3: ...harging the batteries 20 3 3 3 Switching on the meter 21 3 3 4 Setting the date and time 21 4 Operation 23 4 1 Switching on the meter 23 4 2 General operating principles 24 4 2 1 Operating modes 24 4...

Page 4: ...ining the cell constant calibration in control standard 70 4 8 6 Displaying calibration records 72 4 9 Data storage 73 4 9 1 Manual storage 74 4 9 2 Automatic storage at intervals 75 4 9 3 Editing the...

Page 5: ...Multi 3430 Contents 5 ba75865e01 12 2009 6 2 pH 90 6 3 Conductivity 92 7 Technical data 93 7 1 General data 93 7 2 Measuring ranges resolution accuracy 94 8 Lists 95 9 Appendix Firmware update 99...

Page 6: ...Contents Multi 3430 6 ba75865e01 12 2009...

Page 7: ...ts quickly and reliably The Multi 3430 provides the maximum degree of operating comfort reliability and measuring certainty for all applications The Multi 3430 supports you in your work with the follo...

Page 8: ...operating manual A long keystroke approx 2 sec is indicated by the underscore behind the key symbol e g MENU ENTER_ M F1 F2 AR CAL PRT ESC RCL STO MENU ENTER MENU ENTER pH 3430 F1 F2 Softkeys providi...

Page 9: ...r measurement settings Confirms entries Opens the menu for system settings PRT PRT_ Outputs stored data to the interface Outputs displayed data to the interface in intervals MENU ENTER MENU ENTER PRT...

Page 10: ...ion with any buffers Error An error occurred during calibration AR Stability control AutoRead is active HOLD Measured value is frozen AR key Batteries are almost empty The batteries are being charged...

Page 11: ...er that cannot return any voltages or currents that are not allowed SELV and current circuit with current limiting WTW IDS sensors meet these requirements Connectors 1 Digital sensors pH ORP conductiv...

Page 12: ...do not concern this sensor To be able to use the automatic sensor recognition a meter that sup ports the automatic sensor recognition e g Multi 3430 and a digital IDS sensor are required In digital ID...

Page 13: ...y of the last 10 calibrations z Measurement settings IDS conductivity sensors only The set measured parameter The set reference temperature The set temperature coefficient The set TDS factor The calib...

Page 14: ...Overview Multi 3430 14 ba75865e02 12 2009...

Page 15: ...perience the operators will know the necessary safety precautions to take when handling chemicals Safety instructions Safety instructions in this operating manual are indicated by the warn ing symbol...

Page 16: ...left the factory in a safe and secure technical condition Function and operational safety The smooth functioning and operational safety of the meter can only be guaranteed if the generally applicable...

Page 17: ...you are in any doubt please contact the supplier of the meter Obligations of the purchaser The purchaser of this meter must ensure that the following laws and guidelines are observed when using danger...

Page 18: ...Safety Multi 3430 18 ba75865e02 12 2009...

Page 19: ...ns operation with the supplied power pack The NiMh rechargeable batteries are automatically charged while the power pack is connected z USB operation via a connected USB B cable The inserted NiMh rech...

Page 20: ...e of the original power pack see section 7 1 CAUTION Use original power packs only see section 7 1 CAUTION The batteries in the battery compartment are automatically charged when the power pack is con...

Page 21: ...see section 4 3 The switch off interval of the energy saving feature is not active when the meter is supplied with power via the power pack or the USB B cable 3 3 4 Setting the date and time 1 Connec...

Page 22: ...Commissioning Multi 3430 22 ba75865e02 12 2009...

Page 23: ...witchoff switches off the measuring instrument if no key is pressed for an adjustable period The automatic switchoff is not active z if the power pack is connected z if a USB B cable is connected z if...

Page 24: ...2 1 and section 4 2 3 4 2 1 Operating modes The meter has the following operating modes z Measuring The measurement data of the connected sensors is shown in the measured value display z Calibration...

Page 25: ...s can be displayed in the following ways z Clear display of all connected sensors z Detailed display of one sensor e g incl CMC feature with pH sensors With the softkey you can very easily switch betw...

Page 26: ...s z change the display in the selected measuring window e g pH mV by pressing M Menus and dialogs The menus for settings and dialogs in procedures contain further sub menus The selection is made with...

Page 27: ...y reference of examples z Setting the language section 4 2 4 z Setting the date and time see section 4 2 5 Language Deutsch Beep Off Volume 9 Illumination On Brightness 12 Switchoff time 1 h Temperatu...

Page 28: ...play appears The instrument is in the measuring mode 2 Open the Storage config menu with MENU ENTER_ The instrument is in the setting mode 3 Select the System submenu with S T The current selection is...

Page 29: ...with MENU ENTER 7 Open the setting mode for the Language with MENU ENTER General Interface Clock function Service information Reset System 22 09 2009 08 00 Language Deutsch Beep Off Illumination On K...

Page 30: ...alues Therefore check the time at regular intervals Note After a fall of the supply voltage empty batteries the date and time are reset to 01 08 2009 00 00 00 hours Setting the date time and date form...

Page 31: ...lighted 6 Change and confirm the setting with S T and MENU ENTER The time is set 7 If necessary set the Date and Date format The setting is made similarly to that of the time 8 If necessary select and...

Page 32: ...settings to the default con dition Settings To open the Storage config menu press the MENU ENTER_ key in the measured value display After completing the settings switch to the measured value display...

Page 33: ...to be switched on in order to transfer data to a USB memory device System Interface Baud rate 1200 2400 4800 9600 19200 Baud rate of the USB Device interface System Interface Output format ASCII CSV...

Page 34: ...y of measured values You can activate or switch off the automatic Stability control function see section 4 6 3 The measured parameter flashes on the display z as soon as the measured value is outside...

Page 35: ...ensor data settings with More 30 09 2009 08 00 More 30 09 2009 08 00 Man temperature 25 C Resolution pH 0 001 Resolution mV 0 1 Buffer TEC Calibration interval 7d Unit for slope mV pH QSC 30 09 2009 0...

Page 36: ...ement with several sensors connected to one Multi 3430 in one test sample Temperature measurement For reproducible pH measurements it is essential to measure the tem perature of the test sample IDS se...

Page 37: ...activities according to section 4 6 1 2 Immerse the IDS pH sensor in the test sample 3 Select the pH or mV display with M 30 09 2009 08 00 Info 1 Freeze the measured value with AR The HOLD status indi...

Page 38: ...Stability control function checks whether the measured values are stable within the monitored time interval The minimum duration until a measured value is assessed as stable is the monitored time inte...

Page 39: ...u item Possible set ting Description Calibration Calibra tion record Displays the calibration record of the last calibration Calibration Buffer TEC NIST DIN ConCal Buffer sets to be used for pH calibr...

Page 40: ...itial calibration with QSC buffers This menu item is only avail able as long as no initial cal ibration was carried out with the connected IDS sensor QSC Record of first calibration Displays the calib...

Page 41: ...ation interval has expired Buffer sets for calibration You can use the buffer sets quoted in the table for an automatic calibra tion The pH values are valid for the specified temperature values The te...

Page 42: ...02 10 013 25 C 11 Mettler Toledo EU 1 995 4 005 7 002 9 208 25 C 12 Fisher 1 2 007 4 002 7 004 10 002 25 C 13 Fluka BS 4 006 6 984 8 957 25 C 14 Radiometer 1 678 4 005 7 000 9 180 25 C 15 Baker 4 006...

Page 43: ...02 10 013 25 C 11 Mettler Toledo EU 1 995 4 005 7 002 9 208 25 C 12 Fisher 1 2 007 4 002 7 004 10 002 25 C 13 Fluka BS 4 006 6 984 8 957 25 C 14 Radiometer 1 678 4 005 7 000 9 180 25 C 15 Baker 4 006...

Page 44: ...buffers are selected in the menu pH MENU ENTER Calibra tion Buffer see page 39 19 Precisa 3 996 7 003 8 999 25 C 20 Reagecon TEC 2 000 4 010 7 000 10 000 25 C 21 Reagecon 20 2 000 4 000 7 000 10 000 1...

Page 45: ...pting the current value Calibration record The new calibration values are displayed when a calibration procedure is completed Display calibration data and output to interface You can have the data of...

Page 46: ...tion evaluation QSC see section 4 6 10 31 07 2009 15 55 Multi 3430 Ser no B211371282 CALIBRATIONpH 31 07 2009 16 13 33 SenTix 940 Ser no B211371282 AutoCal TEC Buffer 1 4 01 Buffer 2 7 00 Buffer 3 10...

Page 47: ...olor scale flashes It is still possible to measure Note To ensure the high measuring accuracy of the measuring system cal ibrate after the calibration interval has expired Setting the calibration inte...

Page 48: ...layed Apart from that the procedure is identical Note If single point calibration was set in the menu the calibration procedure is automatically finished with the measurement of buffer solution 1 and...

Page 49: ...bration value with MENU ENTER The calibration display for the next buffer appears 6 If necessary finish the calibration procedure as a single point calibration with M The calibration record is display...

Page 50: ...alibration display for the next buffer appears 11 Finish the calibration procedure as a two point calibration with M The calibration record is displayed 30 09 2009 08 00 30 09 2009 08 00 12 Thoroughly...

Page 51: ...last buffer of a buffer set has been measured Then the calibration record is displayed Note The calibration line is determined by linear regression 15 Use M to finish the calibration The calibration r...

Page 52: ...the buffer set se section 4 6 3 in the Buffer menu of the sensor menu Note If single point calibration was set in the menu the calibration procedure is automatically finished with the measurement of...

Page 53: ...he measurement with stability control to be com pleted Set the nominal buffer value for the measured temperature with S T 7 Take over the calibration value for the asymmetry with MENU ENTER The calibr...

Page 54: ...u Calibration Calibration data storage To open the Calibration menu press the MENU ENTER key in the measured value display 9 Thoroughly rinse the IDS pH sensor with distilled water 10 Immerse the IDS...

Page 55: ...record to the interface with PRT z Output all calibration records to the interface with PRT_ z Quit the display with ESC or MENU ENTER z Switch directly to the measured value display with M 31 07 2009...

Page 56: ...lid calibration is available back ground color Measured values in this range are suitable for documentation 2 Measuring range for which no valid calibration is available light gray Measured values in...

Page 57: ...he QSC function promptly calls your attention to changes of the sensor Thus you can do what is necessary to restore the optimum measuring quality e g clean calibrate or replace the sensor Sensor evalu...

Page 58: ...as enabled for an IDS sensor it is not possible to return to the sensor evaluation with the sensor symbol for this sensor Carrying out a QSC initial calibration Note Carry out the QSC initial calibrat...

Page 59: ...ormal calibrations Carrying out a QSC control calibration 4 As soon as the three point calibration has been successfully carried out you can decide whether to accept or discard the cal ibration as the...

Page 60: ...ent with several sensors connected to one Multi 3430 in one test sample Preparatory activities Perform the following preparatory activities when you want to measure 4 7 2 Measuring the ORP Note IDS OR...

Page 61: ...onitored time interval The minimum duration until a measured value is assessed as stable is the monitored time interval The actual duration is mostly longer 3 Select the mV display with M 1 Freeze the...

Page 62: ...suring settings of the ORP measurement To open the settings display the required measured parameter in the measured value display and press the MENU ENTER key After completing the settings switch to t...

Page 63: ...sor Preparatory activities Perform the following preparatory activities when you want to measure 4 8 2 Measuring You can carry out conductivity measurements as follows 1 Connect an IDS conductivity se...

Page 64: ...the HOLD function off Note If the HOLD function is active you can e g start a manual measure ment with stability control Stability control AutoRead The stability control function AutoRead continually...

Page 65: ...tus indicator appears while the measured value is assessed as not stable A progress bar is displayed and the display of the measured parameter flashes The HOLD AR status indicator appears as soon as a...

Page 66: ...3 000 K z No temperature compensation off Note The reference temperature and temperature compensation are set in the Measurement menu for the parameter conductivity see section 4 8 4 Application tips...

Page 67: ...individually displayed for each sensor Below the setting menu is displayed for two IDS sensors TetraCon 925 LR325 01 Default settings are printed in bold Setting menu of TetraCon 925 Menu item Possib...

Page 68: ...e measured parameters and Measurement Temp comp TC Linear coeff 0 000 2 000 3 000 K Coefficient of the linear tempera ture compensation This setting is only available when the linear temperature compe...

Page 69: ...section 4 8 3 This setting is only available for the measured parame ters and Measurement Temp comp TC Linear coeff 0 000 2 000 3 000 K Coefficient of the linear tem perature compensation This setting...

Page 70: ...he control standard 0 01 mol l KCl In the delivery condition the calibrated cell constant of the IDS sensor is set to 0 475 cm 1 conductivity measuring cell TetraCon 925 Stability control AutoRead In...

Page 71: ...m 1 Eliminate the error according to chapter 6 WHAT TO DO IF 1 Connect an IDS conductivity sensor to the meter 2 In the measured value display select the conductivity parame ter with M 3 Start the cal...

Page 72: ...cord To open it in the measured value display press the CAL_ key The calibration records of the last 10 calibrations are to be found in the menu Calibration Calibration data storage To open the Calibr...

Page 73: ...ID number z Measured value of the connected sensor z Measured temperature value of the connected sensor z AutoRead info AR appears with the measured value if the Auto Read criterion was met while stor...

Page 74: ...tinue storing Then you can e g transmit the stored data to a PC or a USB flash drive see section 4 9 3 and subsequently erase the storage see section 4 9 4 1 Press the STO key shortly The menu for man...

Page 75: ...Automatic data storage 22 09 2009 08 00 Adjusted entire storage duration Max available storage duration Graphical display of the storage usage Menu item Possible setting Description ID number 1 10000...

Page 76: ...following keys are active Softkeys M STO_ and On Off The other keys and the automatic switch off function are deactivated Terminating the automatic storage function prematurely Proceed as follows to s...

Page 77: ...th the RCL or RCL_ key Note The settings are explained here using the manual storage as an exam ple The same settings and functions are available for the automatic storage Settings Menu item Setting f...

Page 78: ...easurement data stor age Note All calibration data remains stored when this action is performed Menu item Setting func tion Description Manual data storage 200 3 of 64 30 09 2009 11 24 16 ID number 1...

Page 79: ...Multi 3430 Operation 79 ba75865e02 12 2009 ESC 4 9 4 Erasing the measurement data storage How to erase the measurement data memory is described in section 4 9 3 EDITING THE MEASUREMENT DATA STORAGE...

Page 80: ...ory device 4 10 3 Connecting the PC USB B interface USB Device Connect the Multi 3430 to the PC via the USB B interface Installation of the USB driver on the PC System requirements of the PC for insta...

Page 81: ...interface USB Host of the Multi 3430 to a USB flash drive 4 Set the same transmission data at the connected instrument PC z Baud rate to be selected in the range 1200 19200 z Handshake RTS CTS z Set...

Page 82: ...n records Data Control Operation description Current measured values of all connected sensors Manual z With PRT z Simultaneously with every manual storage process see section 4 9 1 Automatic at interv...

Page 83: ...ttings for pH measurements are reset to the default settings with the Reset function The sensor settings are reset under the Reset menu item in the menu for calibration and measurement settings To ope...

Page 84: ...with the Reset function The sensor settings are reset under the Reset menu item in the menu for calibration and measurement settings To open the settings display the required measured parameter in the...

Page 85: ...settings are reset in the menu Storage config System Reset To open the Storage config menu press the MENU ENTER_ key in the measured value display Setting Default settings Language English Acoustic s...

Page 86: ...Operation Multi 3430 86 ba75865e02 12 2009...

Page 87: ...ing the rechargeable batteries CAUTION Make sure that the poles of the rechargeable batteries are posi tioned correctly The signs on the batteries must correspond to the signs in the battery compartme...

Page 88: ...solvents Re move any splashes immediately 5 3 Packing This meter is sent out in a protective transport packing We recommend Keep the packing material The original packing pro tects the meter against d...

Page 89: ...ause Remedy Batteries almost empty Charge the batteries see section 3 3 2 CONNECTING THE POWER PACK CHARGING THE BATTERIES Replace the batteries see section 5 1 MAINTENANCE Cause Remedy Operating cond...

Page 90: ...dia phragm Cable broken Exchange IDS pH sensor Gel electrolyte dried out Exchange IDS pH sensor Cause Remedy IDS pH sensor The values determined for zero point and slope of the IDS pH sensor are outs...

Page 91: ...essary Temperature not stable Adjust temperature if neces sary IDS pH sensor test sample Conductivity too low Use suitable IDS pH sensor Temperature too high Use suitable IDS pH sensor Organic liquids...

Page 92: ...Error message Error Cause Remedy Measured value outside the measuring range Use suitable IDS conductiv ity sensor Cause Remedy IDS conductivity sensor contam inated Clean and if necessary exchange IDS...

Page 93: ...ation 10 C 55 C Climatic class 2 Power supply Rechargeable batter ies 4 x 1 2 V NiMH rechargeable batteries type AA Operational life Approx 150 h USB interface device Type USB 1 1 USB B Device PC Baud...

Page 94: ...tal device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This...

Page 95: ...ion is also used when the measuring system is adjust ed at the same time see adjusting Electromotive force of an electrode The electromotive force U of the combination electrode is the measur able ele...

Page 96: ...nt Reset Restoring the original condition of all settings of a measuring system Resolution Smallest difference between two measured values that can be dis played by a meter Slope The slope of a linear...

Page 97: ...I Initial commissioning 19 21 Initialize 83 Interval for calibration 47 K Keys 8 M Measured value display 26 Measurement accuracy 47 Measurement data storage Edit 77 Erase 77 Storage locations 73 Meas...

Page 98: ...12 2009 T Temperature compensation 66 Temperature measurement 63 pH 36 Three point calibration pH 50 Transmitting data 80 Transmitting measured values 80 Two point calibration pH 49 52 54 Z Zero point...

Page 99: ...new software version see page 89 1 Install the downloaded firmware update on a PC An update folder is created in the Windows start menu If an update folder already exists for the meter or meter type...

Page 100: ...Appendix Firmware update Multi 3430 100 ba75865e02 12 2009...

Page 101: ......

Page 102: ...Wissenschaftlich Technische Werkst tten GmbH Dr Karl Slevogt Stra e 1 D 82362 Weilheim Germany Tel 49 0 881 183 0 49 0 881 183 100 Fax 49 0 881 183 420 E Mail Info WTW com Internet http www WTW com...

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