Electronic alarms
As no spray is in the beam during measurement of the light background, any light
diffraction is probably due to optical contamination. The Max signal and Peak
signal alarms are measures of the light that is hitting the detectors. This should be
minimal if the windows are clean and there is no spray in the measurement zone.
.
Max Signal measures the average light intensity across all the detectors.
.
Peak Signal measures the light intensity from the detector that is receiving
the most light.
If the measurements are higher than the values entered in these fields, the alarm is
raised and the windows should be cleaned.
Expiry alarms
This alarm occurs if the specified time passes without a background check being
performed.
Scattering alarms
Scattering alarms are used:
.
To warn the user or stop the measurement when the transmission or scat-
tering level falls below a set threshold.
.
To warn the system if the scattering data is out of range for the analysis.
Set these up alarms using the Scattering Data limits, defined in terms of the
transmission and average scattering signal recorded during the measurement:
CHAPTER 10
Spraytec Page 10.11
To Next Page
Loading...
