KROHNE PipePatro EN - Manual (Page 35)

OPERATION
3
35
PIPEPATROL
www.krohne.com 02/2013 - 4002275001 - MA PipePatrol R01 en
After the leak alarm has been acknowledged, the operator can either reset the classificatory
only or reset the whole software and reinitialise the LDS.
Reset the classificatory
Reset the classificatory Reset the classificatory Reset the classificatory means that the system is running in alarming state and therefore the
modules which raised the alarm will not be able to recognise a new leak.
By executing an LDS reset
LDS reset LDS reset LDS reset, the system will start again to perform a leak detection. Indeed a reset
of the LDS will take more time till the system is ready to detect leaks. This depends for example
on the length of the pipeline, on the numbers of intermediate station along the pipeline, etc.
In these kind of applications it is more practicable if a leak occurs only to reset the classificator
instead of restart the LDS. However, before doing so it must be sure that no leak is present in the
line.
INFORMATION!
To reset any incoming alarm an operator has to be logged into the HMI with the authorisation of
the operator group.
Step 4: Reset the alarm
Figure 3-13: Reset the alarm
1 Alarming box to open dialogue for alarm reset
2 Control to reset the classificator
3 Control to reset the complete leak detection system
INFORMATION!
After a reset of the system, the system will first go into a reinitialising phase. During this phase
no leak information will be available. The time period of this phase is application dependant.