9
?
Power on but no display. Check the
battery are in place and making good
contact or correct polarity. Replace a
new battery.
Always rinse the pH electrode and
reference junction in de-ionized water
before next use.
Never touch or rub glass bulb for
lasting pH electrode life.
Please always keep the pH glass bulb
wet by using the cap to protect and
store the electrode.
Slow response. Clean probe by
immersing the electrode in tap water
for 10-15 minutes, then thoroughly
rinse with distilled water or use a
general purpose electrode cleaner.
?
-
-
- -
. Out of pH range, too acidic/or
too alkaline. (Fig. M)
It is normal when the electrode is not
immersed in the water.
?
Fig. M
MAINTENANCE
TROUBLESHOOTING
Fig. LA
-
-
- -
