TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION .......................................................................... 4
2. INSTRUMENT OVERVIEW ............................................................................... 5
3. SPECIFICATIONS ........................................................................................ 6
4. FUNCTIONAL & DISPLAY DESCRIPTION ................................................................ 8
5. GENERAL OPERATIONS .................................................................................. 12
5.1. BATTERY MANAGEMENT .......................................................................... 12
5.2. CONNECTING THE ELECTRODE & TURNING THE METER ON .............................. 12
5.3. OPERATION OVERVIEW ........................................................................... 12
6. SETUP ....................................................................................................... 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
9.1. PREPARATION ...................................................................................... 30
9.2. ORP CALIBRATION ................................................................................ 30
9.3. ORP MEASUREMENT ............................................................................. 30
10. LOGGING (MW151) ...................................................................................... 31
10. 1 . TYPES OF LOGGING ................................................................................ 31
10. 2 . DATA MANAGEMENT ............................................................................. 33
11. MEM & MR FUNCTIONS (MW150) ..................................................................... 38
12. GLP .......................................................................................................... 39
13. TROUBLESHOOTING .................................................................................... 41
14. ACCESSORIES ............................................................................................ 42
CERTIFICATION ............................................................................................. 43
RECOMMENDATION ...................................................................................... 43
WARRANTY .................................................................................................. 43
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