3. Preparation
Inserting the batteries
The battery compartment is found at the
back of the instrument. To open the
battery compartment, push the lid up.
See figure
Note the polarity of battery before insert-
ing the batteries into position. After
replacement, place the cover back into
its position and press down until it
locks tight.
A "LO" annunciator in the LCD alerts
you when battery power is running
low. Replace batteries with a fresh set
as soon as possible.
Connecting the Electrode and Temperature Probe
To connect the Acorn meter to your electrode, align the post of the meter's connector
with the slots on the electrode's connector, push together and twist the electrode
connector 1/2 turn until it clicks into place. To remove, simply rotate the connector
counter-clockwise until it unlocks, and slide the connector off the socket.
Insert the phono jack of the temperature sensor into the socket on the meter.
Unplug the phono jack when not in use.
7
6
3.1
A
A
electrode and temperature probe connections at top of Acorn meter
3.2
Switching the meter on
Press the ON/OFF key to power up your meter. All
the LCD segments display for a few seconds as the
meter goes through a self-diagnostic test. The LCD
then switches into pH measurement mode.
If the LCD then displays "Ur"., the electrode is
faulty, the temperature sensor is faulty, or there is an
open circuit.
See figure
See page 13 for more troubleshooting information.
3.3
A
A
Summary of Contents for pH 5+
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