Eppendorf BioSpectrometer basic - Manual (Page 78)

Troubleshooting
Eppendorf BioSpectrometer
® basic
English (EN)
78
Calculation not
possible because of
division by zero.
Absorbance result
or Formula "b"
parameter is zero. • An absorbance result was divided by
a "zero" value during the evaluation
of a
Division type method (Dual
wavelength method group). This is
not mathematically permissible.
 Check the reagents and samples used
and repeat the measurement.
 Do not enter "zero" as a value for the
Formula
b parameter.
There is only one
measurement left to
be performed in
this series of
measurement.
The maximum
number of
measurements
within one series of
measurements has
been reached. • The number of measurements in one
measuring series is limited to 99.
 Start a new series of measurement
after maximally 99 measurements.
Invalid zoom
interval! Error in the process results method step
in the Zoom mode.
Permissible zoom range for the
wavelength scale:
• Wavelength interval at least 10 nm
• Entries for wavelengths only within
the range programmed in the
parameters for the method.
Permissible zoom range for the
absorbance scale:
• Absorbance interval at least 0.02 A
• Upper and lower limit for absorbance
interval +3 A or –3 A
 Please observe the stated limits in the
zoom procedure.
Problem Cause Solution