Plotting anomaly using Clarity 2.6.3.313 and 2.6.3.320
Posted: Tue Apr 29, 2008 7:04 am
Good morning, Sirs
I use Clarity to acquire signals from my DANI MASTER GCs through the USB
link.
I first noticed the anomaly while running both vers.2.6.3.320 and vers.
2.6.3.313.
The anomaly shows itself frequently, on several systems (GC linked to a
PC), usually after a refresh of the "Data Acquisition" window (for example
after an "Unzoom"). The anomaly seems to show itsels only during a Plot and
not during a Run.
Look at the picture in the enclosed file. That’s what happens when the
anomaly shows itself.
I was acquiring signals via USB link from three detectors at a sampling rate
of 300Hz per channel. From time 4.3min on you can see baselines from
detectors 2 and 3 with their own drift and noise. After an "Unzoom",
baselines before time 4.3min were replaced with flat lines. Baselines from
time 4.3min to 7.3 were copied and pasted back from time 0.8min and filled
with colour. The same happened to detector 1’s baseline.
On another instrument I aquired the same signal through both the USB link at
300Hz and the INT7 interface at 100Hz with the same result.
I remember that on versions before 2.6.3.313, during a Plot, after an
"Unzoom" you could see the earlier part of the baseline replaced with a flat
line, but I never saw the copying of a part of the chromatogram.
Have you got any suggestions?
Best regards
Paolo Ventura
I use Clarity to acquire signals from my DANI MASTER GCs through the USB
link.
I first noticed the anomaly while running both vers.2.6.3.320 and vers.
2.6.3.313.
The anomaly shows itself frequently, on several systems (GC linked to a
PC), usually after a refresh of the "Data Acquisition" window (for example
after an "Unzoom"). The anomaly seems to show itsels only during a Plot and
not during a Run.
Look at the picture in the enclosed file. That’s what happens when the
anomaly shows itself.
I was acquiring signals via USB link from three detectors at a sampling rate
of 300Hz per channel. From time 4.3min on you can see baselines from
detectors 2 and 3 with their own drift and noise. After an "Unzoom",
baselines before time 4.3min were replaced with flat lines. Baselines from
time 4.3min to 7.3 were copied and pasted back from time 0.8min and filled
with colour. The same happened to detector 1’s baseline.
On another instrument I aquired the same signal through both the USB link at
300Hz and the INT7 interface at 100Hz with the same result.
I remember that on versions before 2.6.3.313, during a Plot, after an
"Unzoom" you could see the earlier part of the baseline replaced with a flat
line, but I never saw the copying of a part of the chromatogram.
Have you got any suggestions?
Best regards
Paolo Ventura