INFICON Protec P3000(XL) Helium Leak Detector - Manual (Page 77)

Equipment Settings
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Leak rate filter
For all normal operation the I•Filter should be selected. I•Filter is an intelligent filtering
algorithm that yields the best results with respect to noise level and stability of leak
rate values specifically developed for use in the Protec P3000 leak detector.
Only in cases where the older Protec model is replaced by an Protec P3000 and the
leak detector is used in a fixed testing system it may be required to stick with the
“
FIXED ” filter that was used in the Protec.
Default: I•Filter
Alarm delay
Under conditions with very unstable background conditions it may be favourable to
not issue an alarm immediately but only release an audio alarm if the trigger level has
been exceeded for an extended time. This alarm delay can be entered in 1/10 of a
second. Values between 0 and 9.9 sec will be accepted. Default value: 0.0 sec (i.e.
disabled).