Vega POINTRAC 31 Operating Instructions Manual page 31

Adjustment "covered"
(two-point adjustment)
Adjustment "uncovered"
(two-point adjustment)
POINTRAC 31 • Foundation Fieldbus
Hence a percentage value of 90 % for the Delta I value is recom-
mended.
You select lower values for sensitive detection of material cones or
buildup which cause only partial absorption of the radiation.
This menu item appears only if you have selected " Two point ad-
justment" as adjustment mode (Setup - Adjustment mode).
In this menu item you can set the min. pulse rate (ct/s) at which the
sensor should switch over.
Fill the vessel until the POINTRAC 31 is covered.
You thus get the min. pulse rate (ct/s) for the "covered" adjustment.
Enter the requested pulse rate manually or let the rate be determined
by POINTRAC 31. Automatic determination of the pulse rate should
be given preference.
You can enter the adjustment point (ct/s) manually.
You can let the adjustment point be determined by POINTRAC 31.
This menu item appears only if you have selected " Two point ad-
justment" as adjustment mode (Setup - Adjustment mode).
In this menu item you can set the max. pulse rate (ct/s) at which the
sensor should switch over.
Empty the vessel until the POINTRAC 31 is uncovered.
You thus get the max. pulse rate (ct/s) for the "uncovered" adjustment.
Enter the requested pulse rate manually or let the rate be determined
by POINTRAC 31. Automatic determination of the pulse rate should
be given preference.
You can enter the adjustment point (ct/s) manually.
6 Set up with the display and adjustment module
31