cytiva Monitor UVis-920, Operating Instructions Manual, Page: 48 / 94

5.4 Setting wavelength
NOTICE
Filter units must be stored in a clean and dustfree place.
NOTICE
Do not run the monitor with an empty filter holder.
The instrument can measure absorbance at wavelengths between 200-700 nm by
changeable filter units. The wavelength currently used is shown in main operating
menu. When no filter is inserted the display shows
λ= - - - nm.
At delivery a dummy filter is in place for protection.
Follow the steps below to change the filter unit.
Step Action
1 Press the eject button and remove the filter unit.
2 Insert a new filter unit in the monitor.
Result:
The instrument reads the code tag of the inserted filter unit and display its
wavelength in the main menu.
Empty filter holders for custom filters are available. When using a custom filter, its
wavelength can be stored in the instrument by the operator. See Setting wavelength
for custom filter on page 49.
5 Operation
5.4 Setting wavelength
48 Monitor UVis-920 Operating Instructions 29055049 AF