9
TROUBLESHOOTING
Problem
Cause
Action
Power on but no display Batteries
Insert batteries
Batteries
Verify correct polarity
Batteries
Replace batteries
Unstable readings
Electrode
Immerse electrode more deeply
in sample
Electrode
Condition electrode before f rst
use. Soak in tap water for 10
minutes.
Electrode
Remove air bubbles caught
under electrode
Electrode
Clean electrode
Electrode
Replace electrode
Static charge
Wiping electrode Rinse electrode and blot. Do not
wipe electrode
Same readings in
different samples
Cracked or broken
electrode
Replace electrode. Avoid
plunging electrode into bottom
of container and stir bars.
Display frozen
HOLD function
Press MODE or turn meter off
Button response
Remove batteries (stored data
will be lost)
Steady “-1 ” display
Wait
Reading not stable yet
REPLACING THE ELECTRODE
The TRACER is shipped with an electrode attached. If the electrode needs to be
replaced, follow these steps for removing and connecting electrodes.
1. Turn meter off.
2. To remove the electrode, turn the collar counter-clockwise and remove it.
3. Gently rock the electrode from side to side, pulling it downwards, until it
disconnects from the meter.
4. To attach an electrode, carefully plug the electrode into the meter socket.
CAUTION: Take care to align the pins carefully. Bent or broken pins will
cause the meter to malfunction.
5. Tighten the electrode collar f rmly enough to make a good seal. A rubber
gasket will seal the electrode with the meter.
