PrimeLab 1.0 MULTITEST User Manual page 32

Important notes for accurate testing
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Always conduct baseline (zero) measurements with the same cuvette
used for the subsequent test. Always make sure that the triangular
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marking on the cuvette is aligned with the triangle on the front of the
sampling chamber on the device. There are always small differences
between cuvettes (tolerances due to production).
The device must be acclimatised to the ambient temperature. Great
!
differences between the device temperature and that of the environment
can lead to the formation of condensation obstructing the optical system,
which in turn will lead to incorrect measurements.
!
The sampling chamber must be free from water or humidity, otherwise
there will be the risk of damage to the electronics inside the device.
Please calibrate your PrimeLab on a regular basis (at least 2 weekly)
!
as described in SET-4 of these instructions to obtain the best
possible measurement results.
PrimeLab must remain on a flat surface while testing as otherwise
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the LED light will not pass correctly through the sample water which
will lead to incorrect results.
TEST-9 TEST-9