Owner's manual

IX. MEMORY........................................ 15

A. Memory Storage ......................... 16

B. Memory Recall .......................... 16

C. Clearing a Record/Memory Clear ............ 16

X. TEMPERATURE FORMAT “Centigrade & Fahrenheit” ..... 17

XI. TEMPERATURE COMPENSATION (TC) DISABLE

(TPH1 & TP1) .............................. 17

XII. SALINITY UNITS (TPH1 & TP1) ...................... 18

XIII. TOTAL RETURN to FACTORY SETTINGS.............. 19

XIV. CARE and MAINTENANCE ......................... 19

A. Temperature Extremes .................... 20

B. Battery Replacement (LO BATT) ............ 20

C. pH Sensor Replacement (TPH1 & TH1) ....... 20

D. Cleaning Sensors ........................ 20

XV. TROUBLESHOOTING CHART ....................... 22

XVI. ACCESSORIES................................... 24

A. Conductivity/TDS Standard Solutions

(TPH1 & TP1) ....................... 24

B. pH Buffer Solutions (TPH1 & TH1) ........... 24

C. pH Sensor Storage Solution (TPH1 & TH1) .... 24

D. Soft Protective Case ...................... 25

E. Hard Protective Carry Cases ............... 25

F. Replacement pH Sensor (TPH1 & TH1) ....... 25

XVII. TEMPERATURE COMPENSATION (TPH1 & TP1) ....... 25

A. Standardized to 25°C ..................... 25

B. Tempco Variation......................... 25

C. An Example............................. 26

D. A Chart of Comparative Error ............... 26

E. Other Solutions .......................... 27

XVIII. CONDUCTIVITY CONVERSION to

TOTAL DISSOLVED SOLIDS (TDS) (TPH1 & TP1)... 28

A. How it’s Done ........................... 28

B. Solution Characteristics ................... 28

C. When does it make a lot of difference?........ 28

XIX. TEMPERATURE COMPENSATION (Tempco)

and TDS DERIVATION (TPH1 & TP1) ........... 29

XX. pH MEASUREMENT (TPH1 & TH1) ................... 29

A. pH as an Indicator (TPH1 & TH1) ............ 29

B. pH Units (TPH1 &TH1) .................... 30

C. pH Sensor (TPH1 &TH1) .................. 30

D. Myron L Integral pH Sensor (TPH1 &TH1) ..... 31

E. Sources of Error (TPH1 &TH1) .............. 31

XXI. SOFTWARE VERSION ............................. 32

XXII. GLOSSARY...................................... 33

XXIII. ADDENDUM ..................................... 34

XXIV. NOTES ......................................... 36