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MW160

Bench Meter

12. GOOD LABORATORY PRACTICE (GLP)

GLP allows the user to store and recall calibration data and probe status. Correlating

readings with specific calibrations ensures uniformity and consistency.
pH and ISE calibration data is stored automatically after a successful calibration.

1. Press RANGE to select required measurement range.

2. Press GLP/ACCEPT to view GLP data.
3. Use the

keys to scroll through the displayed parameters.

4. Press GLP/ACCEPT to return to Measurement mode.

If the instrument has not been calibrated for the selected range, “no CAL” message is

displayed blinking.

pH Information

y

Time (hh:mm:ss) of the last calibration

y

Date (MM.DD.YYYY) of the last calibration

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Содержание MAX MW160

Страница 1: ...INSTRUCTION MANUAL SATISFACTION GUARANTEED MW160 MAX pH mV ISE Temperature Bench Meter ...

Страница 2: ... is prohibited without the written consent of the copyright owner Milwaukee Instruments Inc Rocky Mount NC 27804 USA THANK YOU for choosing Milwaukee Instruments This instruction manual will provide you the necessary information for correct use of the meter ...

Страница 3: ...THE ELECTRODE HOLDER 14 6 3 CONNECTING THE PROBES 15 6 4 ELECTRODE CARE MAINTENANCE 16 7 SETUP 18 8 pH 20 8 1 PREPARATION 20 8 2 CALIBRATION 20 8 3 MEASUREMENT 22 8 4 WARNINGS MESSAGES 23 9 ORP 24 9 1 PREPARATION 24 9 2 CALIBRATION 24 9 3 MEASUREMENT 25 9 4 WARNINGS MESSAGES 26 10 ISE 27 10 1 PREPARATION 27 10 2 CALIBRATION 27 10 3 MEASUREMENT 29 10 4 WARNINGS MESSAGES 29 11 LOGGING 30 12 GOOD LAB...

Страница 4: ...4 MW160 Bench Meter 13 PC CONNECTION 37 13 1 USING MI5200 PC APPLICATION 37 13 2 SENDING COMMANDS FROM PC 37 14 TROUBLESHOOTING 39 15 ACCESSORIES 40 CERTIFICATION 41 RECOMMENDATION 41 WARRANTY 42 ...

Страница 5: ...ectrode y MA831R Stainless steel temperature probe y M10004 pH 4 01 buffer solution sachet y M10007 pH 7 01 buffer solution sachet y M10010 pH 10 01 buffer solution sachet y M10016 Electrode cleaning solution sachet y MA9315 Electrode holder y MA9350 RS232 connector cable 2 m y Graduated pipette y 12 VDC adapter y Instrument quality certificate y Instruction manual ...

Страница 6: ...s in pH ISE calibration can be performed in up to 2 points with 6 standard solutions available The meter can store up to 50 data sets for each range pH ORP ISE that can be downloaded to a PC via RS232 or USB Other features include y Easy to read LCD display y Relative mV feature y Internalclockanddatetokeeptrackofdifferenttime dependentfunctions calibration timestamp calibration time out y User se...

Страница 7: ... pH calibration up to 3 point calibration with 7 memorized buffers pH 1 68 4 01 6 86 7 01 9 18 10 01 and 12 45 ISE calibration 1 or 2 points calibration 6 standard solutions available 0 01 0 1 1 10 100 1000 ppm Temperature compensation ATC automatic from 20 0 to 120 0 C 4 0 to 248 0 F MTC manual without temperature probe Logging memory Up to 50 records for each measurement range pH ORP ISE Power s...

Страница 8: ...KCl 3 5M Reference junction Ceramic single Reference type Double Ag AgCl Maximum pressure 0 1 bar Body Glass tip shape sphere Connector BNC Dimensions Shaft length 120 mm 5 5 Ø 12 mm 0 5 Cable length 1 m 3 2 ft Temperature probe MA831R Temperature sensor NTC10K Body Stainless steel Connector RCA Dimensions Total length 190 mm 7 5 Active part 120 mm 5 5 Ø 3 6 mm 1 4 Cable length 1 m 3 2 ft ...

Страница 9: ... enter GLP or to confirm selected action 5 LOG CLR key to log the reading or to clear calibration or logging 6 ON OFF key 7 directional keys to navigate the menu to modify parameter values or to select calibration solutions or logged data 8 RANGE key to select measurement range or to switch focused data 9 SETUP key to enter exit Setup mode in Logging mode to toggle between delete one and delete al...

Страница 10: ...10 MW160 Bench Meter Rear Panel 1 2 3 4 5 6 1 USB socket 2 RS232 socket 3 Power supply socket 4 RCA connector for temperature probe 5 BNC electrode connector 6 Reference electrode connector ...

Страница 11: ...tatus and calibration information 3 CAL tag and pH calibration buffers 4 OPEN tag 5 Probe symbol 6 Mode tags GLP SETUP LOG MEASURE 7 ACCEPT tag 8 First LCD line measurement readings 9 DATE and TIME tags 10 Temperature compensation status MTC ATC 11 Measurement units for second LCD line 12 Second LCD line ...

Страница 12: ...recipitate to form at the junction resulting in clogging Clogging causes erratic and slow readings The ability to refill the electrolyte also extends the life of the electrode y Glass body is easily cleaned and resistant to chemicals y Round tip provides the largest possible surface area for faster readings and is well suited to testing liquid samples 1 2 3 4 5 6 1 Reference wire 2 Inner reference...

Страница 13: ...ure measurement and automatic temperature compensation ATC y Made of stainless steel for corrosion resistance y Used in conjunction with the pH electrode to utilize the instrument s ATC capability 1 2 3 1 Cable 2 Handle 3 Stainless steel tube ...

Страница 14: ...e displayed blinking for a few seconds to remind the user to unscrew the electrode refilling cap and to remove the protective cap before taking measurements 6 2 MOUNTING THE ELECTRODE HOLDER y Take the MA9315 electrode holder from the box y Identify the metal plate 4 with the integrated pin 5 and the screw 2 The plate may be attached to either sides of the meter left L or right R y Turn the meter ...

Страница 15: ... ORP With the meter off y Connect the probe to the BNC socket y Align and twist the plug into the socket y Place the probe into the holder and secure the cable in clips For electrodes with a separate reference connect the electrode s BNC to the BNC connector and the reference electrode plug to the reference connector labeled Ref MA831R Temperature Probe MA831R is connected to the meter through a R...

Страница 16: ...lution 4 After conditioning rinse the sensor with distilled or deionized water Note To ensure quick response and avoid cross contamination rinse the electrode tip with the solution to be tested before measurement Best practices when handling an electrode y Electrodes should always be rinsed between samples with distilled or deionized water y Donotwipeanelectrodeaswipingcancauseerroneousreadingsdue...

Страница 17: ...e electrode The slope indicates the sensitivity of the glass membrane the offset value mV indicates the age of electrode and provides an estimation when the probe needs to be changed The slope percentage is referenced to the ideal slope value at 25 C Milwaukee Instruments recommends that the offset does not exceed 30 mV and that the slope percentage is between 85 105 When the slope value drops bel...

Страница 18: ...CCEPT to confirm and save changes ACCEPT tag is displayed blinking y Press CAL to exit Edit mode without saving return to menu y Press SETUP to exit Setup mode The Setup menu items with options and default values are detailed here Item Description Options Default OFF dAY Calibrationalarmtime out pHrangeonly When enabled a warning will be displayed after the set number of days from last calibration...

Страница 19: ...r 9600 2400 In Id Instrument ID When using several identical meters it may be useful to uniquely identify them by assigning a code to each meter 0000 to 9999 0000 tEMP Temperature unit C or F C To help select the proper ion charge different ion types and their charge are listed in the table below Ion Charge Ion Types 2 divalent anions S CO3 1 monovalent anoins F Cl Br I CN SCN ClO4 NO3 1 monovalen...

Страница 20: ...cy frequent calibrations are recommended The probe should be recalibrated at least once a week or y whenever is replaced y after testing aggressive samples y when high accuracy is required y when the calibration time out has expired Procedure 1 Immerse the pH and the temperature probes approximately 4 cm 1 into the buffer solution and stir gently Make sure the temperature probe is positioned close...

Страница 21: ...ce the pH and temperature probes tip approximately 4 cm 1 into the next buffer solution and stir gently Make sure the temperature probe is positioned close to the pH probe If needed press the keys to select a different buffer value Note The instrument automatically skips the buffers already used for the previous calibration points to avoid erroneous procedure Press RANGE to display the temperature...

Страница 22: ...nd temperature readings y temperature compensation mode MTC or ATC y buffers used if option enabled in Setup For best results is recommended to y Calibrate the probe before use and recalibrate periodically y Keep the electrode hydrated y Rinse the probe with the sample before use y Soak in MA9015 Storage solution for at least 1 hour before measurement MTC mode If Manual Temperature Compensation MT...

Страница 23: ...ER and Old messages are displayed blinking during calibration when an inconsistency between new and previous old calibration is detected Clear calibration parameters by pressing LOG CLR and proceed with calibration from the current calibration point the instrument keeps all confirmed values during current calibration y WRONG BUFFER message and blinking temperature value are displayed during calibr...

Страница 24: ...ALIBRATION mV Calibration The MW160 is factory calibrated for mV Milwaukee s ORP electrodes are interchangeable and no mV calibration is needed when they are replaced If the mV measurements are inaccurate mV recalibration should be performed For an accurate recalibration contact Milwaukee Technical Service Relative mV Calibration Note When a Rel mV calibration is performed the range changes from m...

Страница 25: ...hen the instrument enters to mV measurement range 9 3 MEASUREMENT If necessary press RANGE until the display changes to ORP measurement range Note If the instrument displays a Rel mV reading and mV measurements are needed clear the Rel mV calibration see Relative mV Calibration section Remove the probe protective cap and immerse the tip approximately 4 cm 1 into the sample Allow the reading to sta...

Страница 26: ...g Check if correct standard solution has been used Refresh the probe following the description in ELECTRODE CARE MAINTENANCE section If necessary change the standard solution or the probe y When the reading is out of range during measurement the closest full scale value is displayed blinking Recalibrate the meter Check if the sample is within measurable range ...

Страница 27: ...ith solution used for the first calibration point If necessary press RANGE until the display changes to ISE measurement range 10 2 CALIBRATION For better accuracy frequent calibrations are recommended The ISE range should be recalibrated at least once a week or y whenever the ISE probe or ion charge is changed y after testing aggressive samples y when high accuracy is required Due to electrode con...

Страница 28: ...ect a different value Note The instrument will automatically skip the standard used for the first point Press RANGE to display temperature reading during calibration Notes The slope window is within 20 mV and 105 mV if ion charge is not specified UndF optioninSetupmenu orbetween50 and120 ofdefaultslopeforthecorresponding ion charge Default slope values mV decade 59 16 monovalent anion ion charge i...

Страница 29: ...ument displays the ppm reading in the first LCD line and the temperature in the second LCD line 10 4 WARNINGS MESSAGES y WRONG BUFFER WRONG PROBE message is displayed blinking during calibration when the new slope is out of the slope window Check if correct standard solution has been used Refresh the probe following the description in ELECTRODE CARE MAINTENANCE section If necessary change the stan...

Страница 30: ... LOG tag current date MM DD the record number and the number of free log space are displayed for a few seconds then the instrument returns to Measurement mode Viewing Deleting Logged Data 1 Press RANGE to select required measurement range 2 Press MR fto enter Memory Recall mode The first LCD line displays the pH Rel mV or ppm value The LOG tag and the last stored record number are displayed or or ...

Страница 31: ...he date month and day in the first LCD line and the year in the second LCD line DATE tag is displayed y The time hour and minutes in the first LCD line and the seconds in the second LCD line TIME tag is displayed y The slope in the first LCD line and the offset in the second LCD line SLOPE and OFFSET tags are displayed Note Dashes are displayed for slope in Rel mV range and for offset in ISE range...

Страница 32: ...ion dEL ALL option selects all records to be deleted for the current range 3 Press GLP ACCEPT to delete the selected or all records nuLL message is displayed for the deleted record or the instrument returns to Measurement mode if all records were deleted Press MR to exit Memory Recall mode at any time Warnings Messages y Blinking Lo message and the record number are displayed when less than 6 free...

Страница 33: ...LOGGING 33 y IfMRispressedandnologgeddataarestored norEC messageisdisplayedblinking for the selected measurement range ...

Страница 34: ...tored automatically after a successful calibration 1 Press RANGE to select required measurement range 2 Press GLP ACCEPT to view GLP data 3 Use the keys to scroll through the displayed parameters 4 Press GLP ACCEPT to return to Measurement mode If the instrument has not been calibrated for the selected range no CAL message is displayed blinking pH Information y Time hh mm ss of the last calibratio...

Страница 35: ...Ld message is displayed beneath the pH value when the buffer was not used during last calibration Press SETUP to see calibration date and time no BUFFER message is displayed when the calibration was performed in less than three points y Number of days until the calibration alarm will be displayed e g 5 days 3 days if the time has expired or OFF if the function has been disabled in Setup ...

Страница 36: ...ation standards in calibration order y The nstrument identification code Notes OLd message is displayed beneath the ppm value when the standard was not used during last calibration Press SETUP to see calibration date and time no BUFFER message is displayed when only a one point calibraton was performed If a one point calibration is performed after a two point calibration the instrument keeps the o...

Страница 37: ...ication Notes For RS232 other cables than MA9350 may use a different configuration and communication between instrument and PC may not be possible Keep only one cable connected RS232 or USB during PC communication to avoid possible errors 13 2 SENDING COMMANDS FROM PC It is also possible to remotely control the instrument with any terminal program 1 Switch the meter off 2 Use the MA9350 cable to c...

Страница 38: ...ge RMV Causes the instrument to send a complete set of readings according with the mV Rel mV range RIS Causes the instrument to send a complete set of readings according with the ISE range MDL Requests the instrument model name and firmware code 16 ASCII chars INF Requests the calibration data and the setup parameters SAM Requests the number of logged samples 12 chars LDPH Requests the xxx th pH r...

Страница 39: ...heck the sample is within measurable range Check if electrolyte level and general electrode status mV scale out of range Dry membrane or dry junction Soak the electrode in MA9015 storage solution for at least 30 minutes Display shows the temperature unit blinking Out of order temperature probe Replace the temperature probe Meter fails to calibrate or gives faulty readings Broken probe Replace the ...

Страница 40: ...on 230 mL MA9006 pH 6 86 buffer solution 230 mL MA9007 pH 7 01 buffer solution 230 mL MA9009 pH 9 18 buffer solution 230 mL MA9010 pH 10 01 buffer solution 230 mL MA9012 Refilling solution for pH electrode 230 mL MA9015 Storage solution 230 mL bottle MA9016 Electrode cleaning solution 230 mL MA9020 200 275 mV ORP solution 230 mL MA9112 pH 12 45 buffer solution 230 mL MA9310 12 VDC adapter 220 V MA...

Страница 41: ... environment For detailed information contact your local household waste disposal service or go to www milwaukeeinstruments com US only or www milwaukeeinst com RECOMMENDATION Before using this product make sure it is entirely suitable for your specific application and for the environment in which it is used Any modification introduced by the user to the supplied equipment may compromise the meter...

Страница 42: ...arrantyislimitedtorepairorfreeofchargereplacementiftheinstrumentcannotbe repaired Damage due to accidents misuse tampering or lack of prescribed maintenance isnotcoveredbywarranty Ifserviceisrequired contactyourlocalMilwaukeeInstruments Technical Service If the repair is not covered by the warranty you will be notified of the charges incurred When shipping any meter make sure it is properly packag...

Страница 43: ...Milwaukee Instruments reserves the right to make improvements in design construction and appearance of its products without advance notice ...

Страница 44: ...11C H 6726 Szeged HUNGARY tel 36 62 428 050 fax 36 62 428 051 www milwaukeeinst com e mail sales milwaukeeinst com Milwaukee Instruments Inc 2950 Business Park Drive Rocky Mount NC 27804 USA tel 1 252 443 3630 fax 1 252 443 1937 www milwaukeeinstruments com e mail sales milwaukeeinstruments com MANMW160 ...

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