Chromatography Forum

Hey guys
hope all is well

I would like to know if anyone has an idea how to change wavelengths on Dionex PDA 100 Photodiode Array Detector on Chromeleon 6.4

Program wizard on my PDA 100 is not giving me the option of changing wavelengths at certain times

I want to do the following

Change at 3.95 minutes to 251 nm
Change at 6.05 minutes to 262 nm
Change at 8.6 minutes to 230 nm
Change at 11.4 minutes to 220 nm
Change at 13.4 minutes to 205 nm
Change at 13.85 minutes to 230 nm
Change at 14.75 minutes to 260 nm
Total run time is about 25 minutes.

I was reading the Help section and it says you have to do the WAIT before going to the next wavelength allowing the PDA to Auto Zero
But in the program wizard there is no such option.
Am I missing something?
Any words of wisdom guys and it would be appreciated
Thanks again

For those of you who are interested in this topic;
Dionex people said the following-
"When you review a program , it needs to be connected to a timebase just like control panel for some editing things to be active.
When you make a program from the wizard you are selecting a timebase at the beginning and you should see the inst icons at the end step of the wizard when you review your program.
If you don't- then this function may not be in your vesrion of chromeleon.
So- you either have to do enter the switcing wavelengths manually or copy paste the example in the HELP section to the end of your program."