Empty clamp menu, Detector fault menu, Linearization menu – Ronan X96S DENSITY GAGE User Manual
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Density Gage Manual 012407
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Empty Clamp Menu
The X96S uses a mechanism called empty clamp to protect detectors (particular scintillation detectors) from saturation conditions.
i.e.: Material being processed is lower than detector range, causing too much radiation to reach the detector, possibly damaging
the electronics. The Min Counts and the Max Counts parameters set the threshold (in raw counts
2
) for activation of the empty
clamp function. These Count values should be set above (Max Counts) the Reference Counts, and below (Min Counts) the
Calibrate Counts, and beyond your normal measurement range.
The Empty Clamp menu is used to configure the parameters associated with the mechanism that shuts off power to the detector
if the detector receives more radiation than it is capable of measuring. It contains the following items:
ITEM
FUNCTION
Empty Clamp
Shows the current state of the empty clamp mechanism (enabled or disabled) and
allows the user change the state.
Off Time
Shows and allows the user to change the number of seconds that power to the detector
be shut off when the empty clamp mechanism activates before turning the detector on
to see if the radiation level has dropped to a value that the detector is capable of
measuring. Typical value ranges from 15 to 30 minutes.
Rcvry Time
Shows and allows the user to change the number of seconds that power will be applied
to the detector when the empty clamp mechanism has activated to see if the radiation
level has dropped to a value that the detector is capable of measuring. Typical value
here is 30 seconds.
Min Counts
Shows and allows the user to change the number minimum number of counts that are
used to determine that the detector is saturated (exposed to more radiation than it is
capable of measuring).
Max Counts
Shows and allows the user to change the number maximum number of counts that are
used to determine that the detector is exposed to more radiation than it is capable of
measuring.
Detector Fault Menu
The Detector Fault menu is used to configure a window in which the detector counts must fall within, in order to complete a
reference/calibration.
Linearization Menu
The X96S is capable of performing a multi-point linearization of the density data when required by an application. The
linearization table contains ten entries, numbered 1 through 10. Each entry consists of a measured value, an actual value, and a flag
that indicates if the entry is used
3
.
The Linearization menu is used to control the linearization mechanism. It contains the following items:
ITEM
FUNCTION
Linearize
Shows the current state of the Linearization mechanism (enabled or disabled) and
allows the user change the state.
Clear Table
This invokes a method that clears all entries in the linearization table
Config Linearize
Selecting this takes the user to the Config Linearize menu
Config Linearize Menu
The Config Linearize menu is used to configure the parameters associated with linearization of the measured data. It contains
the following items:
2
The threshold is in raw counts since the overload is a function of the radiation effect on the detector and not related to any
corrected or converted data.
3
Not all of the entries need to be used and the entries do not need to be used in any particular order.