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Operating manual ® MU 6100 H - Multi Meter EU cat. no NA cat. no MU 6100 H 665-0311 MU 6100 H 665-0312 MU 6100 H 76460-522 ba77077e06 05/2021...
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MU 6100 H Legal Address of Manufacturer: Europe United States VWR International BV VWR International LLC Researchpark Haasrode 2020 100 Matsonford Rd Geldenaaksebaan 464 Radnor, PA 19087 B-3001 Leuven +1 800-932-5000 +32 16 385011 www.vwr.com http://be.vwr.com Importer to UK: VWR International Ltd Hunter Boulevard, Magna Park Lutterworth, Leicestershire, LE17 4XN http://uk.vwr.com...
MU 6100 H Contents MU 6100 H - Contents Safety ........7 Safety information .
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Contents MU 6100 H 5.4.4 Elements in menus and dialogs ... . . 21 5.4.5 Navigation example 1:Setting the language ..22 5.4.6 Example 2 on navigation: Setting the date and time .
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MU 6100 H Contents (air calibration vessel) ....50 9.2.5 Calibrating with a comparison measurement (OxiComp) ......51 9.2.6 Calibration data .
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Contents MU 6100 H 13.1 Options for data transmission ..... 80 13.2 Connecting a PC ....... 81 13.3 MultiLab Importer.
MU 6100 H Safety Safety Safety information 1.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the meter. Read this operating manual thoroughly and make yourself familiar with the meter before putting it into operation or working with it. The operating manual must be kept in the vicinity of the meter so you can always find the infor- mation you need.
Safety MU 6100 H Safe operation 1.2.1 Authorized use This meter is authorized exclusively for pH, ISE, ORP, dissolved oxygen and conductivity measurements in a field and laboratory environment. Only the operation and running of the meter according to the instructions and technical specifications given in this operating manual is authorized (see section 3 T , page 10).
MU 6100 H Overview Overview MU 6100 H meter The MU 6100 H meter enables you to perform measurements (pH, U, conduc- tivity, dissolved oxygen) ) quickly and reliably. The MU 6100 H provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.
MU 6100 H Technical data Accuracy (± 1 digit) Variable Accuracy Temperature of the test sample ϰ and ρ / temperature compensation None (Off) ± 0.5 % Nonlinear (nLF) ± 0.5 % 0 °C ... +35 °C according to EN 27 888 ±...
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Technical data MU 6100 H Power Batteries 4 x 1.5 V alkali-manganese batteries, type supply Rechargeable batter- 4 x 1.2 V NiMH rechargeable batteries, type AA (no charging function) Operational life Up to 1000 h without / 150 h with illumination pH sensor input Input resistance >...
MU 6100 H Commissioning Commissioning Scope of delivery MeterMU 6100 H 4 batteries 1.5 V Mignon type AA Short instructions CD-ROM with – USB drivers – detailed operating manual – Software MultiLab Importer Power supply The MU 6100 H is supplied with power in the following ways: ...
Commissioning MU 6100 H 4.3.1 Inserting the batteries 1 Screws 2 Battery compartment CAUTION Make sure that the poles of the batteries are positioned cor- rectly. ± The ± signs on the batteries must correspond to the signs in the battery compartment. You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH).
MU 6100 H Operation Operation General operating principles 5.1.1 Keypad In this operating manual, keys are indicated by brackets <..> . <OK> The key symbol (e.g. ) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated <OK >...
Operation MU 6100 H 5.1.2 Display 6.093 25.0 °C AutoCal TEC HOLD AR 15.03.2014 Menu 08:00 1 Status information (sensor) 2 Measured value (with unit) 3 Measured parameter 4 Channel display: Plug position of the sensor 5 Sensor symbol (calibration evaluation, calibration interval) 6 Measured temperature (with unit) 7 Status information (meter) 8 Softkeys and date + time...
MU 6100 H Operation 5.1.4 Connectors 1 pH electrode 2 D.O. sensor or conductivity measuring cell 3 Mini USB-B interface 4 Service interface CAUTION Only connect sensors to the meter that cannot return any volt- ages or currents that are not allowed (> SELV and > current circuit with current limiting).
Operation MU 6100 H mission Display illumination The meter automatically switches off the display illumination if no key is pressed for 30 seconds. The illumination is switched on with the next keystroke again. You can also generally switch the display illumination on or off (see section 11.2.1 S , page 70).
MU 6100 H Operation 5.4.3 Menus and dialogs The menus for settings and dialogs in procedures contain further subelements. < >< > To select a subelement, use the keys. The current selection is displayed with a frame. ...
Operation MU 6100 H Calibration record Calibration data storage Buffer: One point calibration: Calibration interval: Unit for slope: mV/pH 4.00 7.00 10.00 (20 °C) 15.02.2014 Back 14:15 Messages Information is marked by the symbol. It cannot be selected. Example: Calibration record Calibration data storage Buffer:...
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MU 6100 H Operation Storage & config System Data storage 15.02.2014 Back 14:15 < >< > Select the System submenu with The current selection is displayed with a frame. <OK> Open the System submenu with System General Interface Clock Service information Reset...
Operation MU 6100 H General Language: Deutsch Beep: Illumination: Contrast: 50 % Switchoff time: Temperature unit: °C Stability control: 15.02.2014 Back 14:15 < >< > Select the required language with <OK> Confirm the setting with The meter switches to the measuring mode. The selected language is active.
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MU 6100 H Operation Clock Date format: dd.mm.yyyy Date: 15.02.2014 Time: 14:15:25 15.02.2014 Back 14:15 < >< > <OK> Change and confirm the setting with The minutes are highlighted. < >< > <OK> Change and confirm the setting with ...
Operation MU 6100 H Channel display The MU 6100 H manages the connected sensors and displays which sensor is plugged to which connection. Channel display Display of the plug position for the respective parameter The filled bar indicates for 6.949 each connected sensor to which plug position of the 24.8 °C...
MU 6100 H pH value pH value Measuring 6.1.1 Measuring the pH value NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. To ensure the high measurement accuracy of the measuring sys- tem, always measure with a calibrated electrode (see section 6.2 , page 29).
pH value MU 6100 H within the monitored time interval. Measured Time interval Stability in the time interval parameter Δ : better than 0.01 pH pH value 15 seconds Δ : better than 0.5 °C Temperature 15 seconds The minimum duration until a measured value is assessed as stable is the monitored time interval.
MU 6100 H pH value Calibration 6.2.1 Why calibrate? pH electrodes age. This changes the zero point (asymmetry) and slope of the pH electrode. As a result, an inexact measured value is displayed. Calibration determines and stores the current values of the zero point and slope of the electrode.
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pH value MU 6100 H Buffer -180.0 24.8 °C AutoCal TEC 15.02.2014 14:15 Thoroughly rinse the electrode with deionized water. Immerse the electrode in the first buffer solution. When measuring without temperature sensor: – Temper the buffer solution, or measure the current temperature. –...
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MU 6100 H pH value When measuring without temperature sensor: – Temper the buffer solution, or measure the current temperature. – Enter the temperature value in the menu. <OK> Start the measurement with The measured value is checked for stability (stability control). The [AR] status indicator is displayed.
pH value MU 6100 H Wait for the measurement with stability control to be completed or termi- <OK> nate the stability control and take over the calibration value with The calibration display for the next buffer appears (voltage display). <MODE> If necessary, use to finish calibration or <OK>...
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MU 6100 H pH value When measuring without temperature sensor: – Temper the buffer solution, or measure the current temperature. – Enter the temperature value in the menu. <OK> Start the measurement with The measured value is checked for stability (stability control). The [AR] status indicator is displayed.
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pH value MU 6100 H Immerse the electrode in the second buffer solution. When measuring without temperature sensor: – Temper the buffer solution, or measure the current temperature. – Enter the temperature value in the menu. <OK> Start the measurement with The measured value is checked for stability (stability control).
MU 6100 H pH value Buffer 9.958 24.8 °C AnyCal 15.02.2014 14:15 Set the nominal buffer value for the measured temperature with < >< > <OK> Accept the set calibration value with The calibration display for the next buffer appears (voltage display). <MODE>...
pH value MU 6100 H 6.2.6 Calibration data The calibration record is automatically transmitted to the interface after calibrating. Displays the calibra- The calibration record of the last calibration is to be found under the menu item, <OK> <CAL__> tion data / Calibration / Calibration record.
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MU 6100 H pH value record. Display Calibration Zero point Slope [mV/ record [mV] -15 ... +15 -60.5 ... -58.0 -20 ... <-15 >-58.0 ... -57.0 >+15 ... +20 -25 ... <-20 -61.0 ... <-60.5 >+20 ... +25 >-57.0 ... -56.0 -30 ...
ORP voltage MU 6100 H ORP voltage Measuring 7.1.1 Measuring the ORP NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the ORP electrode to the meter. <MODE>...
MU 6100 H ORP voltage Freezes the mea- With the HOLD function, you can freeze the current measured value. The dis- sured value (HOLD played measured value stops changing until you switch the HOLD function off. function) <HOLD> Freeze the measured value with The [HOLD] status indicator is displayed.
Ion concentration MU 6100 H Ion concentration Measuring 8.1.1 Measuring the ion concentration NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Incorrect calibration of ion sensitive electrodes will result in incor- rect measured values.
MU 6100 H Ion concentration page 71). Criteria The AutoRead criteria affect the reproducibility of the measured values. The following criteria can be adjusted: high: highest reproducibility medium: medium reproducibility low: lowest reproducibility Increasing reproducibility also causes the response time to increase until a measured value is evaluated as stable.
Ion concentration MU 6100 H When measuring without temperature sensor: – Temper the test sample, or measure the current temperature. Calibration 8.2.1 Why calibrate? Ion-selective electrodes age and are temperature-dependent. This changes the slope. As a result, an inexact measured value is displayed. Calibration determines the calibration line of the electrode and stores this value in the meter.
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MU 6100 H Ion concentration Standard 24.8 °C 0.010 mg/l 15.02.2014 12:12 Thoroughly rinse the electrode with distilled water. Immerse the electrode in standard solution 1. When calibrating without temperature sensor: Measure the temperature of the standard solution using a thermom- eter.
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Ion concentration MU 6100 H Standard 24.8 °C 0.020 mg/l 15.02.2014 12:12 Continuing with two- Thoroughly rinse the electrode with distilled water. point calibration Immerse the electrode in standard solution 2. When calibrating without temperature sensor: Measure the temperature of the standard solution using a thermom- eter.
MU 6100 H Ion concentration <OK> Press to continue with three-point calibration. Finish the calibration procedure as a two-point calibration with <MODE> The new calibration values are displayed. Continuing with Repeat the steps 12 to 17 in the same way with the third and further standard three- to seven-point solutions as necessary.
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Ion concentration MU 6100 H <OK> Displaying the cali- The calibration records of the last calibrations are available in the menu, bration data memory / Calibration / Calibration data storage. Menu item Setting/func- Explanation tion Calibration / Displays the calibration record. Calibration data stor- age / Display Further options:...
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MU 6100 H Ion concentration ba77077e06 05/2021...
Dissolved oxygen MU 6100 H Dissolved oxygen Measuring 9.1.1 Measuring D.O. NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the D.O. sensor to the meter. The D.O.
MU 6100 H Dissolved oxygen page 71). Criteria for a stable The Stability control function checks whether the measured values are stable measured value within the monitored time interval. Measured parameter Time interval Stability in the time interval Δ : better than 0.05 mg/l D.O.
Dissolved oxygen MU 6100 H Calibration 9.2.1 Why calibrate? D.O. sensors age. This changes the slope of the D.O. sensor. Calibration deter- mines the current slope of the sensor and stores this value in the instrument. 9.2.2 When to calibrate? ...
MU 6100 H Dissolved oxygen 0.88 25.1 °C OxiCal 15.02.2014 08:00 <OK> Start the measurement with The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. Wait for the end of the measurement with stability control or accept the <OK>...
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Dissolved oxygen MU 6100 H <OK> Start the measurement with The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. Wait for the end of the measurement with stability control or accept the <OK>...
MU 6100 H Dissolved oxygen 9.2.6 Calibration data The calibration record is automatically transmitted to the interface after calibrating. Displays the calibra- The calibration record of the last calibration is to be found under the menu item, <OK> <CAL__> tion data / Calibration / / Calibration record.
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Dissolved oxygen MU 6100 H Display Calibration Relative slope record S = 0.8 ... 1.25 S = 0.7 ... 0.8 S = 0.6 ... 0.7 S < 0.6 or S > 1.25 Error Error Error elimination (see section 15 ..., page 89) HAT TO DO IF Calibration record MU 6100 H...
MU 6100 H Conductivity Conductivity 10.1 Measuring 10.1.1 Measuring the conductivity NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the conductivity measuring cell to the measuring instrument. The conductivity measuring screen is displayed.
Conductivity MU 6100 H The factor to calculate the total dissolved solids is set to 1.00 in the factory. You can adjust this factor to meet your requirements in the range 0.40 ... 1.00. The factor is set in the Measurement menu for the parameter, TDS.
MU 6100 H Conductivity 10.2 Calibration 10.2.1 Why calibrate? Aging slightly changes the cell constant, e.g. due to coatings. As a result, an inexact measured value is displayed. The original characteristics of the cell can often be restored by cleaning the cell. Calibration determines the current value of the cell constant and stores this value in the meter.
Conductivity MU 6100 H ϰ 0.839 1/cm 25.1 °C 15.02.2014 08:00 Immerse the conductivity measuring cell in the control standard solu- tion, 0.01 mol/l KCI. <OK> Start the measurement with The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes.
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MU 6100 H Conductivity Menu item Setting/func- Explanation tion Calibration / Displays the calibration record. Calibration data stor- age / Display Further options: Scroll through the calibration < >< > records with Output the displayed calibra- Data storage / tion record to the interface with Calibration data stor-...
Settings MU 6100 H Settings 11.1 Measurement settings 11.1.1 Settings for pH measurements The settings for pH measurements are made in the menu for calibration and measurement settings of the pH/ORP measurement. To open the settings, dis- play the required measured parameter in the measured value display and <OK>...
MU 6100 H Settings Menu item Possible set- Explanation ting Calibration / Cali- Calibration interval for the pH elec- 1 ... 7 ... 999 d trode (in days). bration interval The meter reminds you to calibrate regularly by the flashing sensor symbol in the measuring screen.
MU 6100 H Settings <OK> Confirm the setting with <MODE> Quit the menu with 11.1.4 Settings for ORP measurements The settings for ORP measurements are made in the menu for calibration and measurement settings of the pH/ORP measurement. To open the settings, dis- play the required measured parameter in the measured value display and <OK>...
Settings MU 6100 H 11.1.5 Settings for D.O. sensors The settings are available in the menu for measurement and calibration set- tings. To open the settings, display the required measured parameter in the <OK> measured value display and press the key.
MU 6100 H Settings Menu item Possible Explanation setting Manual salt content correction for Sal correction concentration measurements. 0.0 ... 70.0 Salinity or salinity equivalent for the Salinity salt content correction. This function is only available for concentration measurements if the manual salt content correction is switched on.
Settings MU 6100 H 11.1.7 Settings for conductivity measuring cells The settings are made in the Measurement menu for the measured parameter, conductivity. To open the settings, display the required measured parameter in <OK> the measured value display and press the key.
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MU 6100 H Settings Menu item Possible Explanation setting Measurement / Measuring cell used Measuring cell / Measuring cells whose cell constant Type is determined by calibration in the KCL control standard solution. Calibration ranges: 0.450 ... 0.500 cm 0.800 ... 0.880 cm The currently valid cell constant is displayed in the status line.
Settings MU 6100 H Menu item Possible Explanation setting Measurement / Reference temperature 20 °C Temp. comp. (TC) 25 °C /Reference temp. This setting is only available for the ϰ ρ measured parameters, Measurement / Multiplier for TDS value 0.40 ... 1.00 TDS factor Resets all sensor settings to the deliv- Reset...
MU 6100 H Settings The reference temperature and temperature compensation are set in the Measurement menu for the parameter, conductivity (see sec- tion 11.1.7 S , page ETTINGS FOR CONDUCTIVITY MEASURING CELLS 66). Application tips Set the temperature compensation suitable for your test sample: Test sample Temperature compensation Display...
Settings MU 6100 H 11.2 Sensor-independent settings 11.2.1 System <OK > To open the Storage & config menu, press the key in the measured value display. After completing the settings, switch to the measured value dis- <MODE> play with Default settings are printed in bold. Menu item Possible Explanation...
MU 6100 H Settings Menu item Possible Explanation setting System / Clock Time and date settings (see Date format section 5.4.6 E Datum XAMPLE Time NAVIGATION ETTING THE DATE , page 24) AND TIME System / Service infor- Hardware version and software version of the meter are dis- mation played.
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Settings MU 6100 H with the Reset function: Setting Default settings Buffer Calibration interval mV/pH Unit for slope Measured parameter Resolution pH 0.001 Resolution mV Asymmetry 0 mV Slope -59.2 mV 25 °C Man. temperature One point calibration The sensor settings are reset under the Reset menu item in the menu for cali- bration and measurement settings.
MU 6100 H Settings settings with the Reset function: Setting Default settings 150 d Kal.-Intervall ϰ Measured parameter 0.475 cm or 0.840 cm Cell constant (C) (nominal cell constant of the conduc- (calibrated) tivity measuring cell last calibrated) 0.840 1/cm Cell constant (C) (set) Temperature compensation...
Data memory MU 6100 H Data memory You can transmit measured values (datasets) to the data memory: Manual data memory (see section 12.1 M , page 74) ANUAL STORAGE Automatic storage at intervals (see section 12.2 A UTOMATIC DATA STORAGE , page 75) AT INTERVALS With each data storage process, the current datasets of the sen-...
MU 6100 H Data memory If the memory is full The following window appears if all 200 storage locations are occupied: Warning Data storage full. Erase? 15.02.2014 Back 14:15 You have the following options: To erase the entire memory, confirm Yes. ...
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Data memory MU 6100 H Settings You can configure the automatic data storing function with the following settings: Menu item Possible set- Explanation ting ID number for the dataset series. ID number 1 ... 10000 Storing interval. Interval 1 s, 5 s, 10 s, 30 s, 1 min, The lower limit of the storing inter- 5 min,...
MU 6100 H Data memory saving mode switches off functions of the meter that are not required for the automatic storage of measurement data (such as the display). By pressing any key the energy saving mode is switched off again. Terminating the Proceed as follows to switch off the automatic data storing function before the automatic memory...
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Data memory MU 6100 H Settings Menu item Setting/ Explanation function Data storage / Displays all measurement datasets page by page. Manual data storage / Display Further options: Scroll through the datasets with < >< > Output the displayed dataset to <F2>...
MU 6100 H Data memory options: <MODE> Switch directly to the measured value display with <F1> Quit the display and move to the next higher menu level with /[Back]. 12.3.2 Erasing the measurement data memory Erasing the measurement data memory (see section 12.3.1 E DITING THE , page 77).
Transmitting data (USB interface) MU 6100 H Transmitting data (USB interface) 13.1 Options for data transmission Via the USB interface you can transmit data to a PC. The following table shows which data are transmitted to the interface in which way: Data Control Operation / description...
MU 6100 H Transmitting data (USB interface) 13.2 Connecting a PC Connect the MU 6100 H to the PC via the USB interface. NOTE When connecting an grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated.
Maintenance, cleaning, disposal, accessories MU 6100 H Maintenance, cleaning, disposal, accessories 14.1 Maintenance 14.1.1 General maintenance activities The only maintenance activity required is replacing the batteries. See the relevant operating manuals of the electrodes for instruc- tions on maintenance. 14.1.2 Replacing the batteries 1 Screws 2 Battery compartment Unscrew the two screws (1) on the underside of the meter.
MU 6100 H Maintenance, cleaning, disposal, accessories Place four batteries (type Mignon AA) in the battery compartment. Close the battery compartment. Set the date and time (see section 5.4.6 E XAMPLE ON NAVIGATION ETTING THE DATE , page 24). AND TIME When the batteries are nearly discharged, the status indi- cator is displayed.
Maintenance, cleaning, disposal, accessories MU 6100 H For more information about where you can drop off your waste of equipment, please contact your local dealer from whom you originally purchased this equipment. By doing so, you will help to conserve natural and environmental resources and you will ensure that your equipment is recycled in a manner that protects human health.
MU 6100 H What to do if... What to do if... 15.1 pH/ORP More information and instructions on cleaning and exchange of sensors are given in the documentation of your sensor. Error message The measured value is outside the measuring range. OFL, UFL Cause Remedy...
What to do if... MU 6100 H No stable measured Cause Remedy value Electrode: – Junction contaminated – Clean the junction – Membrane contaminated – Clean membrane Test sample: – pH value not stable – Measure with air excluded if necessary –...
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MU 6100 H What to do if... Error message, Cause Remedy Error – D.O. sensor contaminated – Clean the D.O. sensor – Electrolyte depleted – Change the electrolyte and membrane cap – If necessary, replace the D.O. sensor Error message Cause Remedy Leak...
What to do if... MU 6100 H 15.3 Conductivity More information and instructions on cleaning and exchange of sensors are given in the documentation of your sensor. Error message The measured value is outside the measuring range. OFL, UFL Cause Remedy –...
MU 6100 H What to do if... 15.4 General information Sensor symbol Cause Remedy flashes – Calibration interval expired – Recalibrate the measuring system Display Cause Remedy – Batteries almost empty – Replace the batteries (see section 14.1 M AINTENANCE page 82) Meter does not react Cause...
Firmware update MU 6100 H Firmware update Available firmware updates are provided on the Internet. With the firmware update program and a PC you can update the firmware of the MU 6100 H to the newest version. For the update you have to connect the meter to a PC. For the update via the USB interface, the following is required: ...
MU 6100 H Glossary Glossary pH/ORP/ISE Asymmetry see zero point Electromotive force of The electromotive force U of the electrode is the measurable electromo- an electrode tive force of an electrode in a solution. It equals the sum of all the gal- vanic voltages of the electrode.
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Glossary MU 6100 H Conductivity Cell constant C Characteristic quantity of a conductivity measuring cell, depending on the geometry. Conductivity Short form of the expression, specific electrical conductivity. It corresponds to the reciprocal value of the resistivity. It is a measured value of the ability of a substance to conduct an electric current.
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MU 6100 H Glossary Channel A channel is a display indication that corresponds to a physical connec- tion on the meter. Measured parameter The measured parameter is the physical dimension determined by measuring, e.g. pH, conductivity or D.O. concentration. Measured value The measured value is the special value of a measured parameter to be determined.
Technical service MU 6100 H Technical service Web resources Visit the VWR website at www.vwr.com for: Complete technical service contact information Access to VWR’s Online Catalogue, and information about accesso- ries and related products Additional product information and special offers Contact us: For information or technical assistance contact your local VWR repre- sentative or visit www.vwr.com.
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Local VWR offices in Europe and Asia Pacific Hungary Austria Poland VWR Interna onal Kft. VWR Interna onal GmbH VWR Interna onal Sp. z o.o. Simon László u. 4. Graumanngasse 7 Limbowa 5 4034 Debrecen 1150 Vienna 80-175 Gdansk Tel.: +36 (52) 521-130 Tel.: +43 01 97 002 0 Tel.: +48 58 32 38 2 0 0 info.hu@vwr.com...
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