FAURE HERMAN 744-082 - Description and Operation; General; Characteristics

FAURE-HERMAN
COMPONENT MAINTENANCE MANUAL
744-082 / 744-082-3
28-49-91
PAGE 1
MAR 31/07
DESCRIPTION AND OPERATION
1. GENERAL
The digital flowmeter used in helicopters is an electronic system which displays the following,
according to the operating mode selected :
- the fuel flow in each engine, via the transmitters located in the fuel supply systems,
- the quantity of remaining fuel,
- the remaining flight time.
This flowmeter module may be used on 4 types of helicopters (AS350, AS355, AS365 and AS332).
Two switches, located in the rear of the module, are used to select the type of helicopter and the unit of
measure (LBS, L, kg, US.G, IMP.G).
A receptacle located in the rear of the module provides electrical connection with external components,
such as :
- the LH and RH transmitters, which send electrical signals at a frequency proportional to the fuel
flow,
- the 28 V power supplies,
- the thermistors used to monitor the temperature.
2. CHARACTERISTICS
A. Dimensions and weight
- Dimensions (see fig. 1).
- Weight : 558 g (P/N 744-082)
583 g (P/N 744-082-3)
B. Technical features
- 28 V power supply.
- Lighting by 5 lamps : 28 V, 120 ± 15 mA.
The document reference is online, please check the correspondence between the online documentation and the printed version.