16
PREPARATION PROCEDURE
Remove the protective cap of the pH electrode (
HI 1048B
).
DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will
disappear when rinsed with water.
During transport, tiny bubbles of air may form inside the glass bulb affecting proper functioning of the
electrode. These bubbles can be removed by “shaking down” the electrode as you would do with a
glass thermometer.
If the bulb and/or junction is dry, soak the electrode in
HI 70300
Storage Solution for at least one hour.
ELECTRODE CONDITIONING & MAINTENANCE
FUSE REPLACEMENT
To change the fuse follow next steps:
• Disconnect the power cord from the rear panel of the
instrument.
• Pull out the fuse holder located near the power cord
connector.
• Replace the fuse with a similar one.
• Push the fuse holder with the fuse in the appropriate
place.
