ALPHAMFD_V4
42Pages

Installation Manual m-rnjvviru Technical specifications subject to change without notice! This operating manual must be given to customer with every ALPHAMFD ^BRXU NIGER BRAUNIGER Flugelectronic GmbH Dr. Karl Slevogt Str. 5 D-82362 Weilheim / Germany info@brauniger.com, www.brauniger.com

Rotax Rotax Rotax Notes

1 Introduction With it's innovative ideas and modern technology the ALPHAMFD offers a complete system for flight and engine-management for ultralight/microlight pilots. Important information for navigation and engine control are easily readable, presented on an integrated Liquid Crystal Display. The ALPHAMFD was carefully designed to be extremely reliable, safe and maintenance free. A self-test on power-on, detection and warning of faulty senders and the audio alarm through the Intercom make the ALPHAMFD an extremely reliable and safe flight information system. Using modern processors and a...

Warning The ALPHAMFD is not certified by LBA/FAA/JAA as this is not required for Ultralights in most countries. However, if such a certification will be required in the future, the certification will be completed. The instrument is designed following the most state of the art technologies and it is extensively tested following the procedures of LBA! Although the ALPHAMFD is an electronic and very precise instrument, incorrect values can be shown, mistakes in operation can be made and shown values can be misinterpreted. By operating the ALPHAMFD, the user confirms that he knows about these...

WARNING: The following points must be carefully observed: • Protect the unit from too high or too low temperatures. The unit works reliably in a temperature range of -15°C to 50° Ceslsius. Protect the unit from excessive shock or vibrations. It might be necessary to mount the unit with suitable shock absorbing materials. Protect the unit from dirt and moisture and all kinds of oils and gasoline. The display must be easy to read, protect the unit from glare and ensure a good field of view. Mount instrument as far away from radio / transponder antennae as possible. All points must be observed...

When mounting the senders the following points must be observed: • Protect the sender leads against high temperatures. Protect the sender leads from excessive vibration. However, a certain amount of movement must be allowed. The sender leads must not be sharply bent or abraded. The threads of EGT, CHT, water- and oil temp senders must be treated with Loctite Anti Seize (or a similar agent) to ensure trouble-free unscrewing. Type K temperature senders (NiCrNi) MUST be extended with specially compensated extension leads. If the leads of the senders are too short and must be extended, the...

Switching-off ports is done in SET-Modes 31 through 37. SET Mode Number Temperature or fuel Display Text Ports Pt100 WaterTemp Pt 100 Oil temp EGT 1 EGT 2 CHT 1 CHT 2 Fuel flow Water Temp Port Oil Temp Port EGT 1 Port EGT 2 Port CHT 1 Port CHT 2 Port Fuel Port Attention: Under set mode 37 it’s up from version 4.04 possible to deactivate the fuel port. This may be helpful for trikes where the gas tank is visible close to the pilot, or fuel systems with high flow back systems where the flow sensor can’t work! Note: The factory setting is all temperature ports ON! WARNING: Make sure only...

2.3.2 Connection Plan ALPHAMFD (Hardware Rev 401) Senders on engine Cable Red/blue Flow Meter to engine Flow to engine, Signal white green Flow Meter back to tank violet brown Flow to tank, Signal +12 volt Oil Pressure, new electronic Aircraft Battery Ground case (screw) Thermocouple Type K (NiCrNi) Type K Plug & Sockets green white green Diode Plug

Connection Board (Hardware Rev 401) 12 V Power for Fuel Flow Senders 1 and 2 Fuel Flow Sender 1 from tank to engine Fuel Flow Sender 2 from engine back to tank Common Ground for both Fuel Flow Senders and both Pt100 temperature senders Exhaust Gas Temperature EGT 1 (Type K) Exhaust Gas Temperature EGT 2 (Type K) Cylinder Head Temperature CHT 1 (Or Water 1 for Rotax 912) or 10 EGT 3 (Type K) 11 Cylinder Head Temperature CHT 2 (Or Water 2 for Rotax 912) or 12 EGT 4 (Type K) Water temperature (Type Pt100) Intercom connection for alarm sounds Main power supply from aircraft 7 to 28 Volts Main...

The BRÄUNIGER fuel flow sender is looped in the fuel line between filter and engine. Make sure all connections of fuel line are leak proof and secure. Secure all line connections with suitable parts, e.g. hose clamps. The fuel flow sender is designed in such a way, that even when the sensor wheel is blocked, there is always enough fuel throughput to keep the engine running. Of course the fuel flow can not be measured with a blocked sensor wheel. Important Safety Notes WARNING! To prevent air bubbles from getting stuck inside the fuel flow sender, the sender MUST be mounted in an angle of...

Drawing: Fuel Flow Sender Mounting To engine Fuel Flow Sender Fuel Filter From Tank Fuel Flow Sender Mounted on Rotax 912 S as described in Section 5.3.6

Pitot Tube and Static Port There are 2 different pressure ports on the backside of the case: 2.5.1 Static Port This is the port for the static pressure. It must be connected to the static port of the aircraft. If you don't know where the static port of your aircraft is, ask the manufacturer of the aircraft. A static pressure port is only necessary for aircraft with closed passenger cabin. Open flex-wing Ultralights can leave the static port open without connecting it anywhere. 2.5.2 Pitot Port This is the port for the pitot pressure. The pitot tube of the aircraft is connected to the pitot...

scale at every altitude. Standard, commercially available, Pitot tubes are used for speed-senders. The speed indicator is calibrated by BRÄUNIGER according to the corresponding dynamic air pressure. 4.1.1 Calibration of Air Speed (CAS) The pilot can individually calibrate the speed indicator in SET-Mode 15 by adjusting the SPEED GAIN factor. This way measurement errors, caused e.g. by a not optimal position of the Pitot tube, can be individually corrected. After calibration, CAS (Calibrated Air Speed) is indicated. The default value is >100<. If you adjust the SPEED GAIN e.g. to <110> the...