Conductivity
Problems with conductivity can be caused by:
SolutionProblem
Make sure the conductivity sensor's connector cable is
properly connected to the system cabinet (see Mount the
main part tubing, on page 91).
Poor connection.
Check that the wash liquid is connected to inlet 6 and the
test liquid to inlet 5.
Wrong inlets used.
Make sure that the liquids used are fresh and correctly
prepared (see Prepare a test, on page 109).
Wrong composition of
wash liquid and/or test
solution.
Conductivity is temperature compensated and thus de-
pendent on correct temperature readings. The tempera-
ture window is located on the back of the flow meter cell
(see Mount the main part tubing, on page 91). Possible
problems with temperature measurement are:
Errors in temperature
readings.
•
Loose flow meter cell. Check that the flow meter cell
is properly snapped onto its mounting knobs (see
Mount the main part tubing, on page 91). A gap be-
tween the temperature window and the sensor may
cause incorrect measurements.
•
Dirty or damp temperature window. Wipe clean with
soft tissue.
•
System temperature not stable with respect to sur-
roundings. If room temperature changes or if the
system is moved from one room to another, it must
be given time to adjust to current room temperature.
•
Make sure the temperature of the process liquid not
differs more than 10°C from ambient temperature.
ÄKTA ready Operating Instructions 28960345 AD 119
8 Component test
8.3 Troubleshooting a failed component test
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