User Manual

76
User Manual
TFAx
CaseL
Picture. 3.34b: Flow-chart describing the external alarm troubleshooting on Case L TFAx
start
Is any
external alarm
terminal connected to
some equipment?
No
Yes
Disconnect the
external alarm
terminal
Is red LED
upon TFAx
still ON?
No
External equipment
connected to this
external alarm terminal
should be faulty. Test it.
Yes
Measure voltage between
the two poles of this
external alarm terminal
Is terminal
electrically closed?
The circuit board
should have some
problems. Contact
the manufacturer
for assistance.
Yes
The analisys on this alarm
terminal and its external
equipment has not revealed
any failure.
Re-connect this alarm terminal
to its external equipment.
Is the
other external alarm
terminal connected to
some equipment?
No
Yes
No
end