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GLP

12. GLP

Good Laboratory Practice (GLP) refers to a quality control function used to ensure uniformity

of sensor calibrations and measurements. Press GLP/ACCEPT to open latest calibration

file. Use the



keys to scroll stored information (offset and slope values, used buffers

together with the temperature, time and date of the last calibration, calibration warnings).

This information is also included with every data log.
If the instrument has not been calibrated, blinking CAL tag and "NO CAL" message are displayed.

pHmV

NO MTC ATC

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

ºC

ºF

TIME

The GLP slope percentage is referenced to the ideal slope value at 25 °C.
Additionally, for

MW151,

the electrode condition indicator displays its status after the last

calibration.

pHmV

NO MTC ATC

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

ºC

ºF

TIME

Use the



keys to display the last calibration date (yyyy.mm.dd) together with the

current reading.

pHmV

NO MTC ATC

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

ºC

ºF

TIME

Note:

When using custom buffers, “CUST1” and “CUST2” tags are displayed. If only one

custom buffer is used, “CUST1” is displayed together with its value. (MW151 only)

Содержание MW150

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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