Reference Absorbance - wtw PhotoLab S12-A Operating Instructions Manual

10. Correction functions

10.2 Reference absorbance

Each absorbance measurement is made against the
basic absorbance stored in the meter. When activating
the reference absorbance, this value is ignored and
the value measured as the reference absorbance is
used instead. The reference absorbance function is
not active when delivered.
– In the correction funct. menu, call up the reference
absorbance submenu.
The following display appears:
The reference absorbance function is active and
appears in the setup menu:
The measured reference absorbance value remains
stored until
l
the photometer is switched off
l
the method is changed
l
it is manually erased using the
erase ref. absorb. function.
The reference absorbance function appears:
– Select the on menu item with
1
– Confirm with .
– To measure the reference absorbance, call up the
setup submenu in the reference absorbance menu.
– Call up the measure ref. absorb. menu item.
The erase ref. absorb. menu item first appears
after a reference absorbance has been
measured.
– Insert the cell to start the measurement. The
message, measuring...
3 28
or
,
... appears on the display.
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