Chemstation: HPLC-DAD. How to turn off integration/signal for certain periods of analysis time?

Hello,

I cannot say for sure, but most DAD detector drivers have a timed event section where you could change the signal. In the example below the method end time is 10 min from the pump and the detector changes wavelength at 5 min. You will likely get a shift in the signal baseline where it changes at 5 min. The other option would be to setup integration off and on timed events into signal specific integration events for the 2 channels. You can time program the integration on and off for each channel as you asked about using that method. 

Hello,

I cannot say for sure, but most DAD detector drivers have a timed event section where you could change the signal. In the example below the method end time is 10 min from the pump and the detector changes wavelength at 5 min. You will likely get a shift in the signal baseline where it changes at 5 min. The other option would be to setup integration off and on timed events into signal specific integration events for the 2 channels. You can time program the integration on and off for each channel as you asked about using that method. 

This all sounds like it would work perfectly. However, the timed event signal section doesn't appear to work the way I thought it would. In the image below, you can see that I've set the start/end times, but this does nothing as far as I could tell during analysis. Maybe I need to edit some of the other fields in this table to get it to do what I want?

As for the integration events, my software is not showing all of the options available in your screenshot. Here are the options available to me. Is there a way to access these or are they version specific?

Thank you for the suggestions!

Oh wait: You can amend lines to the integration events! I did not know that. I am pretty sure I can use this to resolve my issue now. 

Thank you!

Hello,

If the integration settings work that is great. The option to time program the signal I was talking about would have been in the actual acquisition part of the method where you setup the instrument parameters.

Marty

Oh, yep, I found those too now. 

Thank you for all of your help with this!