Sper Scientific 850038 Pure Water Meter - Manual (Page 37)

MAINTENANCE & STORAGE
35
a)Make sure the electrode is clean
Between measurements, rinse the
electrode with de-ionised water. If
the electrode has been exposed to a
solvent that is immiscible with water,
clean it with a solvent miscible with
water, e.g. Ethanol or acetone and
rinse carefully with water.
b)Store the conductivity cell carefully
Before storing the electrode, rinse it
carefully in de-ionised water.
Short-term storage: I
n de-ionised water.
Long-term storage: I n de-ionised water
or store dry.
After long-term storage, leave the
electrode in de-ionised water for 8
hours before use.
c) Handle platinised cells carefully
Do not touch the black platinum layer
of the platinized cells.
To rinse the platinized cells,
dip the cell several times in a beaker
with demineralised water.
Be careful when rinsing platinized
cells with deionised water from a
water bottle. The force of the water can
remove some of the platinum layer
and consequently change the cell
constant.