XS Instruments pH 70 Plus - Table of Contents

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EN
Index
Introduction ............................................................................................................................................................. 4
Measurement parameters ....................................................................................................................................... 4
Basic features ........................................................................................................................................................... 4
pH measurement features (suited for model pH70+DHS and PC70+DHS) .............................................................. 4
Conductivity measurement features (suited for model COND70+ and PC70+DHS) ................................................ 4
Data sheet ................................................................................................................................................................ 5
Instrument Description ............................................................................................................................................ 6
LCD Display .............................................................................................................................................................. 6
Keypad Functions ..................................................................................................................................................... 6
Meter Connections .................................................................................................................................................. 7
Stability indication ................................................................................................................................................... 8
Parameter selection ................................................................................................................................................. 8
Automatic Power Off ............................................................................................................................................... 8
DHS Technology ....................................................................................................................................................... 8
pH Measurement ..................................................................................................................................................... 9
pH electrode information ........................................................................................................................................ 9
pH calibration consideration - Standard buffer solution .......................................................................................... 9
Three-point calibration ............................................................................................................................................ 9
Calibration Intervals ................................................................................................................................................. 9
Due calibration ....................................................................................................................................................... 10
Check calibration date ........................................................................................................................................... 10
pH Meter Calibration ............................................................................................................................................. 10
Customer calibration ............................................................................................................................................. 11
Measurement ........................................................................................................................................................ 12
Factory default setting ........................................................................................................................................... 12
Self-diagnosis information ..................................................................................................................................... 13
pH electrode maintenance .................................................................................................................................... 13
Daily maintenance ................................................................................................................................................. 13
Calibration buffer solution ..................................................................................................................................... 13
Protect glass bulb ................................................................................................................................................... 13
Regenerate glass bulb ............................................................................................................................................ 13
mV measurement .................................................................................................................................................. 14
ORP ........................................................................................................................................................................ 14
Clean and activate ORP electrode .......................................................................................................................... 14
Conductivity ........................................................................................................................................................... 14
Conductivity cell .................................................................................................................................................... 14
Conductivity cell constant ...................................................................................................................................... 14
Conductivity calibration solutions ......................................................................................................................... 15
Calibration intervals ............................................................................................................................................... 15
1-point and multi-point calibration ....................................................................................................................... 15
Reference temperature .......................................................................................................................................... 15