Performing Photometer Monitoring - wtw PhotoLab S12-A Operating Instructions Manual

8. Analytical Quality Assurance (AQA)

8.2.4 Performing Photometer monitoring

Photometer monitoring (AQA1) includes a check of
the
l
Light barriers using the L1/L2 cells (contained
within the scope of delivery of the Spectroquant
PhotoCheck)
l
Absorbance measurement using PhotoCheck
After approx. After approx.
1 s: 1 s:
After approx.
4 s:
After approx.
1 s:
standards.
1
– Press to call up the setup menu
– Call up the AQA check submenu
®
– Call up the meter submenu.
The following display appears:
– Insert the L1 cell.
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 service
department.
– Insert the L2 cell.
37