wtw PhotoLab Spektral, Operating Instructions Manual

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9 Analytical Quality Assurance (AQA)
Photometer monitoring includes a check of the
●
Light barriers using the L1/L2 cells (contained
within the scope of delivery of the Spectroquant
®
PhotoCheck)
●
Absorbance measurement using PhotoCheck
standards.
AQA entry
When using a new Spektroquant
®
PhotoCheck
packet, check the theoretical values stored in
the photometer and if necessary correct them
according to section 9.2.1
E
NTERING
P
HO
-
TO
C
HECK STANDARDS
.
Using AQA MemoChip... ...or via a menu
→
Insert the AQA MemoChip.
→
In the setup menu, call up the
AQA check submenu.
→
Call up the meter submenu.
The following display appears:
→
Insert the L1 cell.
After the measurement is finished:
9.2.3 Performing Photometer monitoring
If the error message appears, clean the
cell shaft with a damp, lint-free cloth and
repeat the check.
If the message reoccurs, inform the ser-
vice department.