Hello,
Here is my setup:
- OpenLab CDS version 3.6.2 with content management, local server
- Fluorescence detector 1260 Infinity FLD (part number G1321C)
- UV detector 1260 Infinity VWD (part number G1314B)
- Binary pumps 1260 (part number G1312B)
- CTC PAL injector
We have one single instrument configuration in OpenLab with both detectors in but we never use them at the same time, we simply untick "Acquire signal" from the detector we do not want to use.
The UV detector is the "access point" (plugged to the operating PC) and is working perfectly fine.
However for some odd reason the fluorescence detector signal never balances to zero, unless the lamp is switched off (see firsts part of the screenshot below).
When the lamp is switched on, there is a spike of signal followed by a quick equilibration to a value of about 0.3 LU.
When manually balancing the lamp (right-click > balance), the icon turns orange for a few seconds to indicate the balancing process.
When completed, it does not change anything for the signal, it remains close to 0.3 LU (see second part of the screenshot below).
The same result occurs when attempting to balance via the acquisition method:
In the Data Analysis window, the acquired chromatograms also do not start at zero:
Could it be that only the detector plugged to the operating PC (UV detector in my case) is allowed to balance the baseline?
Any suggestions to fix this?
Many thanks for your help!