LaMotte CON 6 PLUS, Руководство пользователя

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26
7. TROUBLESHOOTING
Problem Cause Solution
No display Batteries are not
installed, were
improperly installed,
or are too weak
Install batteries with
c / - polarity.
Replace with new
batteries
“LO” displays in the
LCD
Low battery Replace batteries
Unstable readings a) Air bubbles in
probe
b) Dirty probe
c) Probe not immersed
deeply enough
d) External noise
pickup or induction
caused by nearby
electric motor
e) Broken probe
a) Tap probe to
remove bubbles
b) Clean probe &
recalibrate
c) Make sure sample
entirely covers the
probe sensors
d) Move or switch o
ff
interfering motor
e) Replace probe
Slow response Dirty / Oily probe Clean & recondition
probe
Inaccurate readings /
can’t calibrate
Probe guard not
installed or calibration
solution incorrect
Install probe guard
& replace calibration
solutions
“Er1”
CON 6 PLUS
TDS 6 PLUS
Attempted calibration
value was not within
the ±40% auto
calibration window
Check the value of
the conductivity
calibration solution.
Switch to manual
calibration mode and
re-calibrate
“Er2”
Temperature
calibration error
Auto calibration was
not within (0 – 50 °C)
temperature range
Ensure that the
temperature is within
the acceptable range