15
(c) For heavily polluted platinum surface on which there is an oxidation film, polish the platinum surface
with toothpaste, then wash it in distilled or deionized water, then submerge it in the soaking solution for 6
hours.
6
Parameter Setting
6.1 Main Menu
In the measurement mode, press key to enter in P1.0, then press or to switch to main
menu: P1.0→P3.0. Please refer to Diagram – 14.
P1.0: pH parameter setting;
P3.0: Basic parameter setting.
6.2 Sub-Menu
6.2.1. In P1.0 mode, press key to enter in sub-menu P1.1 of pH parameter setting, then press
and key to switch among sub-menu: P1.1→P1.2→P1.3→P1.4→P1.5→P1.6, See Diagram–14.
6.2.2. In P3.0 mode, press key to enter in sub-menu P3.1 of TDS parameter setting, then press
and key to switch among sub-menu: P3.1→P3.2→P3.3→P3.4→P3.5→P3.6→P3.7→P3.8, See
Diagram – 14 below.
P1.1 Select pH standard solution
P1.2 Select resolution
P1.3 Set stability criteria
P1.4 Set due calibration
P1.5 Check calibration date
P1.6 Restore to factory default setting
P3.1 Select temperature unit
P3.2 Select backlight time
P3.3 Adjust timing storage time
P3.4 Adjust date
P3.5 Adjust time
P3.6 Clear stored value
P3.7 Automatic power-off setup
P3.8 Automatic hold setup
Sub-menu of pH parameter setting
Sub-menu of basic parameter setting
Main menu of parameter setting
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