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MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter

14. TROUBLESHOOTING

SYMPTOMS

PROBLEM

SOLUTION

Slow response /

Excessive drift

Dirty pH electrode

pH electrode: Soak the electrode tip in

MA9016

for 30 minutes, then follow the

Cleaning procedure

Dirty conductivity probe

EC probe: Remove and clean the sleeve.

Make sure the four rings on the probe

are clean.

Reading fluctuates

up and down

(noise)

Clogged/dirty pH electrode

junction. Low electrolyte level

(refillable electrodes only)

Clean the electrode. Refill with fresh

MA9012

electrolyte

Conductivity probe sleeve not

properly inserted; air bubbles

inside sleeve.

Make sure the sleeve is correctly placed.

Tap the probe to remove air bubbles.

Display shows the

reading blinking.

Reading out of range

Recalibrate the meter.

Check the sample is within measurable

range.

Make sure the autoranging feature is not

enabled.

Meter fails to

calibrate or gives

faulty readings

Broken probe

Replace the probe.

LCD tags displayed

continuously at

startup

ON/OFF key

is blocked

Check the keyboard.

If error persists, contact Milwaukee

Technical Service.

“Internal Er X”

Internal hardware error

Restart the meter.

If error persists, contact Milwaukee

Technical Service.

Содержание MW180 MAX

Страница 1: ...INSTRUCTION MANUAL SATISFACTION GUARANTEED MW180 MAX pH mV EC TDS NaCl Temperature Bench Meter...

Страница 2: ...part is prohibited without the written consentofthecopyrightowner MilwaukeeInstrumentsInc RockyMount NC27804USA THANK YOU for choosing Milwaukee Instruments This instruction manual will provide you th...

Страница 3: ...TRODE HOLDER 14 6 3 CONNECTING THE PROBES 14 6 4 ELECTRODE CARE MAINTENANCE 15 7 SETUP 18 7 1 MEASUREMENT MODES 18 7 2 GENERAL SETUP OPTIONS 19 7 3 pH MODE SETUP OPTIONS 23 7 4 EC MODE SETUP OPTIONS 2...

Страница 4: ...LINITY 44 11 1 PREPARATION 44 11 2 CALIBRATION 44 11 3 MEASUREMENT 45 11 4 WARNINGS MESSAGES 47 12 LOGGING 49 12 1 TYPES OF LOGGING 50 12 2 DATA MANAGEMENT 52 13 GLP 59 14 TROUBLESHOOTING 60 15 ACCESS...

Страница 5: ...t parameters pH ORP EC TDS Total Dissolved Solids percentage of salinity NaCl and temperature in a variety of ranges pH calibration can be performed in up to 5 point using a selection of 7 standard ca...

Страница 6: ...o 1499 ppm mg L 1 50 to 14 99 g L 15 0 to 100 0 g L up to 400 0 g L absolute TDS with 0 80 factor 0 01 ppm 0 1 ppm 1 ppm 0 01 g L 0 1 g L 1 of reading 0 03 ppm or 1 digit whichever is greater Salinity...

Страница 7: ...l 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 12 mm 0 5 Cable Length 1 m...

Страница 8: ...s 4 SETUP key to enter setup mode 5 LOG CLEAR key to log the reading or to clear calibration or logging 6 ON OFF key 7 directional keys for menu navigation select setup parameters and calibration solu...

Страница 9: ...DESCRIPTION 9 Rear Panel 1 2 4 5 6 7 3 1 Power supply socket 2 USB type A socket 3 Micro USB socket 4 DIN probe connector 5 Reference electrode connector 6 RCA connector for temperature probe 7 BNC e...

Страница 10: ...symbol and probe condition 7 LOG tag and ACCEPT tag 8 Mode tags LOG RCL CAL GLP SETUP MEASURE 9 First LCD line measurement reading 10 Arrow tags to navigate the menu in either direction 11 Measurement...

Страница 11: ...te 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 a...

Страница 12: ...Meter MA814DB 1 for conductivity TDS salinity and temperature measurement y Direct signal processing for noise free measurements y Accurate and integrated temperature measurement 1 2 3 4 1 O ring 2 Pl...

Страница 13: ...re 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...

Страница 14: ...ected measurement mode pH ORP or EC TDS Salinity and settings 6 2 MOUNTING THE ELECTRODE HOLDER Take the MA9315 electrode holder from the box y Mount the supplied metallic plate onto the meter Tighten...

Страница 15: ...s normal Rinse the electrode with distilled or deionized water 2 Place the electrode in a beaker containing MA9016 Cleaning solution for a minimum of 30 minutes Note Do not condition a pH electrode in...

Страница 16: ...he storage procedure above If electrodes are not maintained correctly both accuracy and precision are affected This can be observed as a steady decrease in the slope of the electrode The slope indicat...

Страница 17: ...se Calibrating Calibration is the first step in obtaining accurate and repeatable results See CALIBRATION section for details Best practice y Always use fresh standards The calibration standards are e...

Страница 18: ...nts PH pH pH ORP mV CONDUCTIVITY EC EC TDS TDS SALINITY NaCl To configure the meter settings modify default values or set measurement parameters y Press RANGE to select a measurement mode y Press SETU...

Страница 19: ...ult MANUAL or STABILITY Press RANGE to select between options Use keys to set time interval 5 default 10 30 sec or 1 2 5 15 30 60 120 180 min Use keys to select stability type fast default medium or a...

Страница 20: ...or day PressRANGE toselectoptions Use keystomodifythevalues Time Options hour minute or second Press RANGE to select Use keys to modify the values Auto Off Options 5 10 default 30 60 minutes or off Us...

Страница 21: ...ault or disable Use keys to select When pressed each key will emit a short acoustic signal Temperature Unit Options C default or F Use keys to select the unit LCD Contrast Options 1 to 9 default Use k...

Страница 22: ...SET DONE message confirms that the meter performs with default settings Instrument Firmware Version Displays the installed firmware version Meter ID Serial Number Use keys to assign a meter ID from 00...

Страница 23: ...ile connected to a PC The USB PC icon is not displayed if LOG ON METER option was previously set 7 3 pH MODE SETUP OPTIONS y With the pH ORP probe connected press RANGE on the measurement screen to se...

Страница 24: ...default buffer value as starting value Use keys to set the value of the first custom buffer Second Custom Buffer Press RANGE to set a default buffer value as starting value Use keys to set the value...

Страница 25: ...nt screen to select CONDUCTIVITY TDS SALINITY to enter EC mode Temperature Compensation Options ATC default MTC or NO TC Press RANGE to select options EC Cell Factor Options 0 010 default to 9 999 Wit...

Страница 26: ...0 00 to 6 00 1 90 default With the probe connected use keys to change the value EC Temperature Reference T Ref Options 25 C default and 20 C With the probe connected use keys to change the value TDS F...

Страница 27: ...99 mS cm 200 0 mS cm Note Absolute conductivity up to 500 0 mS cm is the conductivity value without temperature compensation With the probe connected use keys to change the value When autoranging the...

Страница 28: ...value When autoranging the meter automatically chooses the optimum TDS range to maintain the highest possible accuracy Note Selected TDS range is active during measurements only If exceeded the full s...

Страница 29: ...2 CALIBRATION General Guidelines For better accuracy frequent calibrations are recommended The probe should be recalibrated at least once a week or y Whenever is replaced y After testing aggressive sa...

Страница 30: ...sed buffers are displayed blinking Follow the same steps for 2 or 3 point calibration Calibration procedure can be continued up to 5 point following the same steps Press CAL EDIT to exit calibration T...

Страница 31: ...ted and the expired calibration status is triggered when the meter detects calibration time out The CAL EXPIRED warns the user that the instrument should be recalibrated If the instrument is not calib...

Страница 32: ...approximately 4 cm 1 into the sample It is recommended to wait for the sample and the pH probe to reach the same temperature If necessary press the RANGE until the display changes to the pH mode Allo...

Страница 33: ...temperature value manually 2 Press GLP ACCEPT to confirm or press ESC or CAL EDIT again to exit without saving Note The temperature value used for MTC can be set only when NO T PROBE message is displ...

Страница 34: ...alibration section for details y CLEAN ELEC indicates poor electrode performance the offset is out of the accepted window or the slope is under the accepted lower limit Clean the probe to improve resp...

Страница 35: ...calibration the instrument will automatically calibrate to the pH value corresponding to the measured temperature but compensate it to the value of 25 C y When CONTAMINATED BUFFER is displayed replace...

Страница 36: ...Measurement y OUT CAL RNG is displayed when the measured value is outside calibration range The option has to be enabled see pH MODE SETUP OPTIONS Out of Calibration Range section y OUT OF SPEC messa...

Страница 37: ...factory calibrated Note For direct ORP measurements use an ORP probe MA9020 ORP Solution can be usedtoconfirmthattheORPsensormeasurescorrectly mVreadingsarenottemperature compensated 9 2 MEASUREMENT 1...

Страница 38: ...quentcalibrationisrecommended Theprobeshouldbecalibrated y Whenever is replaced y After testing aggressive samples y When high accuracy is required y If NO CAL is displayed on the third LCD line y At...

Страница 39: ...r beaker walls 2 Lift and lower the probe to refill the center cavity and tap the probe repeatedly to remove any air bubbles that may have been trapped inside the sleeve 3 Press CAL EDIT to enter cali...

Страница 40: ...and ACCEPT tags are displayed blinking 7 Press GLP ACCEPT to confirm or press ESC to exit without changing Note Using manual calibration will erase previous calibrations and both log files and GLP wil...

Страница 41: ...yed along with the Cell Factor C F on the third LCD line To change the temperature coefficient see SETUP section for details A temperature coefficient must also be set for the sample Note If the readi...

Страница 42: ...is out of range the full scale value is displayed blinking To toggle between information displayed on the third LCD line use the keys 10 4 WARNINGS MESSAGES Messages Displayed During Calibration y If...

Страница 43: ...e probe needs to be calibrated or that the previous calibration has been deleted y If the probe is not connected NO PROBE message is displayed Messages Displayed During Interval Logging y If EC temper...

Страница 44: ...tion solution making sure that the sleeve holes are completely submersed Center the probe away from the bottom or beaker walls 2 Lift and lower the probe to refill the center cavity and tap the probe...

Страница 45: ...salinity and they refer to general use of saltwater Practical salinity and natural seawater require a conductivity calibration NaCl requires calibration in MA9066 standard PSU Practical Salinity Unit...

Страница 46: ...ion rT temperature compensation polynomial a0 0 008 a1 0 1692 a2 25 3851 a3 14 0941 a4 7 0261 a5 2 7081 b0 0 0005 b1 0 0056 b2 0 0066 b3 0 0375 b4 0 0636 b5 0 01442 c0 0 008 c1 0 0005 X 400RT Y 100RT...

Страница 47: ...e applied for temperatures between 10 and 31 C 11 4 WARNINGS MESSAGES Messages Displayed During Calibration y If an EC calibration is performed the NaCl calibration is automatically cleared A new NaCl...

Страница 48: ...ter and or temperature are out of range y If a NaCl calibration is required NO CAL message is displayed y If Calibration Expired Warning is on and the set number of days has passed or an EC calibratio...

Страница 49: ...logged data Note Logging locations are measurement mode specific PH and ORP logs will be saved under PH and CONDUCTIVITY TDS SALINITY logs under EC MW180supportsthreetypesoflogging manuallogondemand l...

Страница 50: ...s y Records are added to it until the session stops y For each interval logging session a new lot is created A complete set of GLP information including date time range selection temperature reading a...

Страница 51: ...surement screen press LOG CLEAR LCD displays PLEASE WAIT The LOG LOT screen displays on third LCD line the measurement log number bottom left and interval logging session lot number bottom right 3 Pre...

Страница 52: ...gging sessions across all 100 lots can store up to 1000 records When a logging session exceeds 600 records a new lot will be created y Lot name is given by a number from 001 up to 999 Names are alloca...

Страница 53: ...CCEPT tag blinking and the number of stored logs 2 Use keys to select between log storage locations PH or EC 3 Press GLP ACCEPT to confirm 4 Use keys to select MANUAL or STABILITY lot type 5 With a lo...

Страница 54: ...press LOG CLEAR to delete DELETE is displayed with ACCEPT tag and log blinking 8 Press GLP ACCEPT to confirm to exit press ESC or CAL EDIT or LOG CLEAR DELETE and Log blinking is displayed until the...

Страница 55: ...eted CLEAR DONE message displays briefly Display shows the previous lot Delete All 1 Press RCL to access the logged data LCD displays PLEASE WAIT followed by LOG RECALL PH or LOG RECALL EC with ACCEPT...

Страница 56: ...e details y The CSV file comma separated values may be opened with a text editor or spreadsheet application y The CSV file encoding is Western Europe ISO 8859 1 y Field separator may be set as comma o...

Страница 57: ...on screen USB Export Selected Logged data can be transferred separately by lots 1 Press RCL to access the logged data LCD displays PLEASE WAIT followed by LOG RECALL with ACCEPT tag blinking and the n...

Страница 58: ...en Data Management Warnings NO MANUAL LOGS No manual records saved Nothing to display NO STABILITY LOGS No stability records saved Nothing to display OVR with lot blinking Identically named lots on US...

Страница 59: ...formation is included with every data log pH INFORMATION pH calibration data displayed on the third LCD line offset slope pH calibration solutions time date calibration expiration time if enabled in S...

Страница 60: ...de Refill with fresh MA9012 electrolyte Conductivity probe sleeve not properly inserted air bubbles inside sleeve Make sure the sleeve is correctly placed Tap the probe to remove air bubbles Display s...

Страница 61: ...L MA9011 Refilling Solution 3 5M KCl for pH ORP electrodes 230 mL MA9012 Refilling Solution for pH electrode 230 mL MA9015 Storage Solution 230 mL MA9016 Electrode Cleaning Solution 230 mL MA9020 200...

Страница 62: ...ent in which it is used Any modification introduced by the user to the supplied equipment may compromise the meter s performance For your and the meter s safety do not use or store the meter in hazard...

Страница 63: ...Milwaukee Instruments reserves the right to make improvements in design construction and appearance of its products without advance notice...

Страница 64: ...1C 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...

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