Hélicoptères Guimbal
SECTION 7
CABRI G2
SYSTEMS DESCRIPTIONS
Approved under DOA EASA.21J.211
7-17
BARC
BARC (Fuel and rotor alarm device). It is designed as an alternate mean in
case of EPM failure.
It should be preferred in case of doubt.
When the MASTER is switched ON, the BARC conducts a testing sequence
for caution / warning lights on the instrument panel, and the rotor speed
horn.
In order to reinitiate the testing sequence, the MASTER should be switched-
off during 45 seconds (make also sure that NR switch is on MAIN).
In case of an electrical bus failure, the BARC can be switched to a direct
battery backup supply.
“Rotor in flying mode” signal
Signal activation
when NR ≥ 450 RPM
Signal deactivation
when NR
≤
400 RPM
Main and backup modes
Continuous
Power-off maximum NR threshold
NR ≥ 594 RPM
Intermittent horn
Flashing
Power-on maximum NR (red limit)
NR > 540 RPM
Flashing
Power-on minimum NR (red limit)
NR < 515 RPM
Continuous
Power-off minimum NR threshold
NR ≤ 466 RPM
Continuous horn
Backup mode only
Green NR arc
515 RPM ≤ NR ≤ 540 RPM
Also comes ON
at non-flying NR
to prevent from draining
the battery low.
