SENSITRON
A Halma Company
MT4984
MU+ PK-32
Manual (EN)
P. 54/14
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Fault
The fault condition will be activated in the following situations:
I
Short circuit or open circuit in a detecting circuit
II
Removal of a remote gas detector or IN and OUT modules
III
Under-scale detection
IV
Over-range detection
Figure 23
Typical FAULT state of the ACTIVE EVENTS screen.
Figure 24
FAULT details screen
Pressing Enter key, with a fault event selected, a window is opening showing the
details of the related channel as in the next image:
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Test/Maintenance
This state is meant for testing and maintenance purpose. This testing
function requires an operation sequence, described later in this manu-
al, and can be activated for each detector being connected.
An user with the OPERATOR or MAINTENANCE level cannot put under
TEST/MAINTENANCE more than 50% of the system’s channels and
outputs.
EXCEPTION: In case the system just includes one channel only, it will
be possible to put that channel under test. The same principle applies
in the case when just one single output is defined. That output can be
put under test.
