Pitts;
Hey SS - I am quite prepared to believe your knowledge of the EC135 type is greater than mine. That said you don't seem to fundamentally disagree with my overall point.
That being when the red "low fuel" warning alarms you have this 8-10 min window which as you point out is dependant upon the specific model.
No, it's not a matter of anyones greater knowledge, just the ability to read the frequently referred and linked to flight manual relevant to the type.
I do disagree with you, there isn't an 8-10 minute window, it clearly states "Land Within 10 minutes"
Pitts;
Whats the difference between an alarm and a warning?
From the already linked to flight manual for the EC135;
A red warning light indicates a hazard which may require immediate corrective action.
A yellow caution indicates the possible need for future corrective action.
I think the more relevant publication is the Flight Manual and not an online Oxford dictionary to which your link doesn't even work