14 E20
N
Operator’s Manual
4.
TROUBLESHOOTING AND MAINTENANCE
4.1
Introduction
With ordinary mainterance we mean all the operations which have to be carried out
periodically and whose execution does not require any specific capability and
therefore they can be carried out by the users (operators, etc.).
With extraordinary maintenance we mean unexpected interventions due to
mechanical or electrical failures requiring an exact technical competence or
particular capabilities and therefore they should be carried out by qualified personnel
only (maintenance personnel, etc.).
4.2
Alarm conditions
When at least one of the following alarm conditions occur, the GAP and/or CRASH
control is supplied at the output:
• Alarm of cable continuity: it is checked whether the microphone connection is
not interrupted (cut of the cable for the connection or disconnection of the
microphone)
• Alarm of microphone efficiency: it is checked both the microphone correct
operation and the correct interfacing between fixed sensor and revolving sensor
(microphone with contactless transmission)
OPERATIONS TO BE CARRIED OUT
Verify the integrity of the connection cable of the microphone and the correct
connection; verify the correct interfacing between fixed sensor and revolving sensor
of the microphone with contactless transmission (cleaning of faced transmission
surfaces).
If the alarm condition remains, ask for the invention of maintenance personnel.