Eppendorf UVette - Manual (Page 8)

8
Eppendorf® UVette® — Instructions for use
5 Troubleshooting
5 Troubleshooting
5.1 Error search
Symptom/
message
Cause Remedy
Measured values
are imprecise.
•
The blank value and sample
value have been measured
in different cuvettes.
 Measure the blank value and
sample value in the same
UVette.
•
The position of the UVette in
the device is not correct.
•
UVette was inserted
incorrectly.
 Press the UVette firmly onto
the base of the cuvette shaft
or adapter.
 The UVette must be inserted
in the device in the same
direction for the blank
measurement and sample
measurement. The UVette
may not be rotated 180°.
•
The UVette was used for
more than one
measurement.
 Each UVette may only be
used for one measurement
(blank measurement or
sample measurement).
Measured values
are not plausible.
•
The light path height of the
UVette does not match the
light path height of the
device.
 Use the adapter (not with the
Eppendorf BioPhotometer
or Eppendorf
BioSpectrometer).
 The adapter may only be
used with the light path
height that matches the
photometer.
•
Optical path length of the
UVette does not match the
value set in the device.
 Insert the UVette in the
device so the required
optical path length (2 mm/10
mm) is penetrated.
 If the optical path length has
been changed, the blank
value also needs to be
updated.
 Set the optical path length
parameter in the device
(2 mm/10 mm).
•
The wavelength is below
220 nm or above 1 600 nm.
 The UVette may only be
used for wavelengths of
220 nm to 1 600 nm.