Declaration Of Conformity - palintest Macro 900 Operation Manual

Macro 900 Operation Manual
Troubleshooting Continued ...
Problem
pH and/or ORP
readings are slow,
inaccurate or unstable
or calibration is
impossible.
EC readings are
inaccurate or
unstable.
OUT OF CAL RANGE
error shows during
calibration of EC.
Turbidity readings are
inaccurate or
unstable.

20. DECLARATION OF CONFORMITY

Palintest Ltd declares that the equipment described herein is in compliance with
the essential requirements and other relevant provisions of Directives
© 2013 Palintest Ltd.
Cause / Remedy
The electrodes may need re-calibrating. Recalibrate.
The electrodes may need cleaning. Clean as described in
the relevant section of this manual.
The electrodes may have been allowed to dry out. Re-
hydrate as described in the relevant section of this
manual.
The electrodes may be damaged. Replace the electrodes.
The electrode may be loose allowing water to enter the
electrode socket. Remove the electrode, blow out the
socket with compressed air then leave the probe and
electrode in a warm place for at least 48 hours to dry out.
Have you got the Probe Sleeve fitted? EC will not work
without the Probe Sleeve fitted.
The Probe may not be inserted deep enough into the
sample being measured. Ensure the sample level reaches
the minimum depth line on the outside of the Probe
Trapped air bubbles may be causing problems. Tap and
swish the Probe to dislodge them.
The Probe Sleeve may be loose. The Probe Sleeve must
be absolutely rigid with respect to the Probe Body for
correct EC operation. If you can move the Probe Sleeve
to and fro whilst holding the Probe Body, tighten then
recalibrate.
The EC electrode may need recalibrating. Recalibrate.
The EC electrode may be dirty. Clean the EC electrode
then recalibrate.
Have you got the Probe Sleeve and end cap fitted?
Turbidity will not work without the Probe Sleeve and end
cap fitted.
Trapped air bubbles may be causing interference. Tap
and swish the Probe to dislodge them.
The sample being measured may contain air bubbles.
Under these conditions, optical turbidity measurements
can not be taken.
The Probe may not be inserted deep enough into the
sample being measured. Ensure the sample level reaches
the minimum depth line on the outside of the Probe.
The Probe Sleeve may be loose. The Probe Sleeve must
be absolutely rigid with respect to the Probe Body for
correct turbidity operation. If you can move the Probe
Sleeve to and fro whilst holding the Probe Body, tighten
then recalibrate.
The Turbidity electrodes
Recalibrate.
The lenses on the turbidity electrodes may be dirty. Clean
the lenses then recalibrate.
www.palintest.com
may need recalibrating.
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