Particulate Systems NanoPlus, Operator'S Manual, Page: 155 / 252

NanoPlus Operator’s Manual Preparing for Measurement
Mar 2014 A-9
Preparing for Measurement
Inspecting the pH Electrode
Remove the pH electrode by sliding it upward and rotating the vial (plastic) to the right (looking
down). Confirm the volume of inner solution in the pH electrode. If the volume has decreased,
refill the inner solution (3.33 mol/L KCl) by removing the rubber stopper from the refill opening
(for refilling the inner solution).
pH electrode
Electrode holder
Inner solution
Rubber stopper for
opening for refilling
of inner solution
Vial (plastic)
The outer tube and tip of the electrode are made of glass. Be careful not to break the
glass.
The inner solution for the electrode is KCl solution of high concentration (3.33 mol/L).
If your hands/skin contact the inner solution, wash your hands/skin under running
water immediately. If the inner solution enters your eyes, wash with running water
immediately, and seek medical attention.