performance of the electrode. To avoid the formation of the film, shield the electrode
from strong light.
Storage of the Electrode
Short term storage (less than a week or two):
Immerse the electrode tip in electrolyte
solution. Make sure the electrode cable plug is connected to the electrode port on the
EVOM
meter so that the system is internally short-circuited and electrode symmetry is
maintained.
Long term storage (greater than a week or two):
When storing for long periods of time, the
electrode should be rinsed with distilled water and stored dry and in the dark.
EVOM Meter
Battery Replacement:
EVOM
has two independent sets of batteries:
• One set contains six AA alkaline batteries that power most of the electric circuit,
including the display. When this set of batteries is low, the “LO BAT” will appear on
the digital meter. Therefore, this set of batteries does not need to be changed until
the display indicates.
• The second set of batteries contains only one 9-volt alkaline battery that is used to
power the electric current injecting circuit. There is no low battery indicator for this
battery. Therefore, this battery should be checked or replaced every six months.
To replace the batteries, remove the screws on the bottom of the instrument case and
withdraw the front panel assembly from the case. Observe the polarity markings and
replace battery cells accordingly. Reinsert the instrument into case and secure it. Check
the R Zero and adjust, if necessary, with the
EVOM
in the R Mode.
To conserve battery life, turn off the instrument when not in use.
12 WORLD PRECISION INSTRUMENTS
