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GENERAL OPERATIONS 

13

MW151

 has a wider range of features and can be used in more complex applications 

where certain requirements need to be met.
It displays 0.01 or 0.001 pH resolution (set by the user), allows up to 5-point standard 

buffer calibration and 2 custom buffers.
The bench meter shows calibration status and electrode condition warnings (should the 

pH electrode require maintenance). It also indicates if the buffer solution is contaminated. 
The logging feature supports logging up to 1000 records, organized as: manual log-on 

demand (max. 200 logs), manual log-on stability (max. 200 logs), interval logging (max. 

1000 logs, 100 lots).

MW150

MW151

Calibration

up to 3 points

up to 5 points, including 2 custom 

buffers

Diagnostics

Error messages

GLP

Electrode condition

Error messages

GLP

Log types

One memorized reading

Manual Log on demand

Manual Log on stability

(Fast, Medium, Accurate)

Interval Logging 

Recommended pH 

electrodes

MA917B/1

MA917B/1

Summary of Contents for MW150

Page 1: ...INSTRUCTION MANUAL SATISFACTION GUARANTEED MW150 MW151 MAX pH ORP Temperature Bench Meters pH ATC CAL 4 01 7 01 10 01 C...

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

Page 3: ...TUP 14 6 1 GENERAL SETUP 14 6 2 MW151 SPECIFIC SETUP 18 7 pH 20 7 1 pH PREPARATION 20 7 2 pH CALIBRATION 20 7 3 pH MEASUREMENT 22 7 4 WARNINGS MESSAGES 24 8 ELECTRODE CONDITION MAINTENANCE 27 9 ORP 30...

Page 4: ...electrode y MA831R Temperature probe y MA9315 Electrode holder 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 Electro...

Page 5: ...4 01 6 86 7 01 9 18 10 01 and 12 45 and two custom buffers MW151 y Available log space for up to 1000 records MW151 y Alphanumeric LCD displayed messages for user friendly intuitive information warnin...

Page 6: ...ic 7 standard buffers pH 1 68 4 01 6 86 7 01 9 18 10 01 12 45 2 custom buffers Temperature compensation Automatic 20 0 to 120 0 C 4 0 to 248 0 F Manual without temperature probe Automatic 20 0 to 120...

Page 7: ...pH Temperature range 0 to 70 C 32 to 158 F Shaft material glass Reference electrolyte KCl 3 5M Reference junction ceramic single Reference type double Ag AgCl Maximum pressure 0 1 bar Connector type...

Page 8: ...eadings 8 Third LCD line message area 9 ON OFF key to turn the meter ON and OFF 10 keys to change manual temperature select setup parameters and choose calibration buffers 11 RANGE key to select pH or...

Page 9: ...9 ON OFF key to turn the meter ON and OFF 10 keys to change manual temperature select setup parameters and choose calibration buffers 11 RANGE key to select pH or mV 12 GLP ACCEPT key to enter GLP or...

Page 10: ...yed when the electrode cap has to be removed Refill cap is displayed blinking before calibration 4 Electrode symbol 5 Accept tag 6 Third LCD line message area 7 Mode tags 8 Offset slope indicators 9 S...

Page 11: ...d when electrode cap has to be removed Refill cap is displayed blinking before calibration 5 Electrode symbol filled in segments indicate electrode condition 6 Accept tag 7 Log tag 8 Third LCD line me...

Page 12: ...ure can be set manually using the keys Assemble the electrode holder and press ON OFF to turn the instrument on All LCD segments will be displayed for a few seconds or while the ON OFF is pressed and...

Page 13: ...require maintenance It also indicates if the buffer solution is contaminated The logging feature supports logging up to 1000 records organized as manual log on demand max 200 logs manual log on stabi...

Page 14: ...iled parameters can be set or viewed If needed use ESC to exit Setup mode 6 1 GENERAL SETUP pH Information Use keys to select whether the pH buffer calibration information is enabled or not on enable...

Page 15: ...OPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT...

Page 16: ...01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME Sound A short acoustic signal is generated every time a key is pressed Use keys to enable disable the acoustic signal Default option is on p...

Page 17: ...pH mV TIME Instrument Firmware Version First LCD line displays instrument firmware version pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEP...

Page 18: ...2 min 5 min 15 min 30 min 60 min 120 min 180 min and stability type fast medium accurate Press CAL EDIT to return to Setup menu pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9...

Page 19: ...nfirm or press CAL EDIT to return to Setup menu pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME Separator Type Use keys to...

Page 20: ...ever the pH electrode is replaced y after testing aggressive chemicals y when high accuracy is required y when the calibration time out has expired if the feature is enabled y at least once a week 7 2...

Page 21: ...CUST1 CUST2 DATE ACCEPT C F pH mV TIME pH NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME To use only a 1 point calibration pre...

Page 22: ...EMENT Remove the electrode protective cap and submerse the tip app 4 cm 1 into the sample pH readings are directly affected by temperature therefore it is recommended to wait until the sample and the...

Page 23: ...1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TI...

Page 24: ...libration and attempt a new calibration with fresh buffers To clear calibration information press CAL EDIT then press LOG CLEAR MEM CLEAR The CLEAR CAL message will be displayed Press the GLP ACCEPT t...

Page 25: ...TIME pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME Bad Electrode BAD ELEC is displayed if the cleaning procedure perfor...

Page 26: ...o set a custom buffer of the same value as the one previously set below listed messages may appear VALUE USED BY CUST1 before calibrating with any of these values pHmV NO MTCATC USB OPEN AUTO HOLD SLO...

Page 27: ...elow 50 mV per decade 85 slope efficiency or the offset at the zero point exceeds 30 mV reconditioning may return the electrode to the level of expected performance but a change of electrode may be ne...

Page 28: ...llable electrodes if the refill solution electrolyte has dropped more than 2 cm 1 below the fill hole add the appropriate electrolyte solution Rinse with water and calibrate before using To ensure a q...

Page 29: ...on cable and insulation must be intact 3 Connectors should be clean and dry 4 Rinse off salt deposits with water 5 Follow storage procedure above For refillable electrodes Refill the electrode with fr...

Page 30: ...ectrode tip app 4 cm 1 into the sample and wait until the stability indicator hourglass icon disappears The bench meter will show the ORP mV value on the primary LCD together with temperature of the s...

Page 31: ...ssed All readings are stored in a single lot for the measurement type New records are stored in the same lot i e readings made on different days 2 Log on stability Readings are logged each time LOG CL...

Page 32: ...01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME While the WAITING message is displayed press ESC or LOG CLEAR again to exit without logging Interval Logging When Interval logging...

Page 33: ...F SPEC is displayed 10 2 DATA MANAGEMENT The user can view delete and export data by pressing RCL Viewing data When RCL is pressed LOG RECALL is displayed together with the total number of logs Press...

Page 34: ...al or stability Press LOG CLEAR to delete entire lot either manual or stability lots pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F...

Page 35: ...n deleted If log space is full 100 lots users need to delete some of them to free up log space If lot number has reached 100 users need to delete all lots to restart lot numbering Delete All Press RCL...

Page 36: ...CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME pHmV NO MTCATC USB OPEN AUTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV...

Page 37: ...UTO HOLD SLOPE CLEAR CAL 1 68 4 01 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME When the export is finished the USB flash drive can be removed Note Do not remove USB flash drive d...

Page 38: ...to recall the last memorized pH ORP temperature and calibration values If required press RANGE to switch between pH and ORP mV values With pH selected use keys to switch between calibration offset slo...

Page 39: ...1 6 86 7 01 9 18 10 01 12 45 CUST1 CUST2 DATE ACCEPT C F pH mV TIME The GLP slope percentage is referenced to the ideal slope value at 25 C Additionally for MW151 the electrode condition indicator dis...

Page 40: ...e g CAL EXPIRED If a new buffer is used which was not used in the last calibration the buffer tag will be displayed with the tags for the previously used buffers displayed blinking pHmV NO MTCATC USB...

Page 41: ...eral electrode status mV scale out of range Dry membrane or dry junction Soak electrode in MA9015 storage solution for at least 30 minutes C or F displayed blinking Out of order temperature probe Repl...

Page 42: ...r pH electrode 230 mL MA9015 Storage Solution 230 mL 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...

Page 43: ...fic application and for the environment 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...

Page 44: ...C 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 4...

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