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46 MW
12. TROUBLESHOOTING
Symptom
Slow response /
Excessive drift
Reading fluctuates
up and down (noise)
Display shows EC,
TDS or NaCl reading
blinking
Meter fails to
calibrate or gives
faulty readings
LCD tags displayed
continuously at
startup
"Internal Er X"
message
Portable Meter
Problem
Dirty probe
Probe sleeve placed
incorrectly.
Air bubbles inside
sleeve.
Reading
is out of range
Broken probe
ON/OFF key is
blocked
Internal error
Solution
Remove and clean the
sleeve. Make sure the
probe rings are clean.
Correctly place the
sleeve.
Tap the probe to remove
air bubbles.
Recalibrate the meter.
Sample not within
measurable range.
Disable autoranging
feature.
Replace the probe.
Check the keyboard. If
error persists, contact
Milwaukee Technical
Service.
Restart the meter.
If error persists, contact
Milwaukee Technical
Service.
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