48
MW806
Portable Meter
12. TROUBLESHOOTING
Symptom
Problem / Solution
Slow response /
Excessive drift
Dirty probe.
Soak the electrode tip in
MA9016
for 30 minutes,
then follow the Cleaning procedure.
Reading fluctuates
up and down
(noise)
Clogged/dirty pH electrode junction.
Clean the electrode. Refill with fresh
MA9012
electrolyte.
Air bubbles. Tap the probe to remove air bubbles.
Display shows
reading blinking
Reading is out of range.
Recalibrate the meter.
Sample not within measurable range.
Disable autoranging feature.
Meter fails to
calibrate or gives
faulty readings
Broken probe. Replace the probe.
LCD tags displayed
continuously at
startup
ON/OFF key is blocked.
Check the keyboard. If the error persists, contact
Milwaukee Technical Service.
“Internal Er X”
Internal hardware error.
Restart the meter. If the error persists, contact
Milwaukee Technical Service.