Berthold DUO XPERT LB 470RID, Operating Manual

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7 Main Menu Device Setup LB 470RID Level
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56925-1BA2 Rev.02, 05/2021
Signal processing: XIP
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(Radiation Interference)
Device Setup | Setup | Signal Condition | XIP
This function allows you to take interference (XIP) into consideration. Measure-
ment jumps that influence the process can arise through interference. Only rapid
increases are considered. If detection (Fig. 107, item 1) is activated, the last valid
measured value is frozen.
Cycle delay [s] This value determines the wait time for the meas-
ured value generation. The change does not affect
the measurement above this time.
Hold time [s] The valid measurement value is frozen at this time
after detection of interference.
I
0
factor The “I
0
factor” determines the recognition criteria
for interference.
RI Sigma A sudden increase in the count rate is an indication
of interference radiation. The smaller the value,
the more sensitive the setting. To avoid false
alarms, a value for RI Sigma >5 (e.g. 6) should be
selected. In the case of turbulence and stirrers that
cause the measured level value to fluctuate, the
value must be set correspondingly higher.
If the level measurement is used as a limit switch
with point source and point detector, then it is rec-
ommended to set the value to 999 and deactivate
the sigma function. Otherwise it is possible that an
XIP alarm is triggered when the value falls below
the limit value.
1
2
3
4
5 Check box the “Activate detection”
Input field measurement delay
Input field hold time
Input field I_O factor
Input field RI Sigma
Fig. 107 Signal Condition (Radiation Interference)
NOTICE
Rapid Switch and Interference detection must not be activated simultaneously.
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XIP = X-Ray Interference Protection