Brauniger ALPHAMFD - 2.3.3 Connection Board (Hardware Rev 401); 2.4 Mounting Fuel Flow Sender; 2.4.1 General Notes

2.3.3 Connection Board (Hardware Rev 401)
1
+
12V Out FLOW
1
12 V Power for Fuel Flow Senders 1 and 2
2
+
FLOW to engine
2
Fuel Flow Sender 1 from tank to engine
3
+
FLOW to tank
3
Fuel Flow Sender 2 from engine back to tank
4
-
GND Pt100/Flow
4
Common Ground for both Fuel Flow Senders and both Pt100
temperature senders
5
+
5
6
-
EGT 1 (Type K)
6
Exhaust Gas Temperature EGT 1 (Type K)
7
+
7
8
-
EGT 2 (Type K)
8
Exhaust Gas Temperature EGT 2 (Type K)
9
+
9
10
-
CHT 1 (Type K)
10
Cylinder Head Temperature CHT 1 (Or Water 1 for Rotax 912) or
EGT 3 (Type K)
11
+
11
12
-
CHT 2 (Type K)
12
Cylinder Head Temperature CHT 2 (Or Water 2 for Rotax 912) or
EGT 4 (Type K)
13
+
Water Temp (Pt100)
13
Water temperature (Type Pt100)
14
+
Oil Temp (Pt100)
14
Oil temperature (Type Pt100)
15
-
15
16
+
Intercom
16
Intercom connection for alarm sounds
17
+
BATT 7...28 V In
17
Main power supply from aircraft 7 to 28 Volts
18
-
BATT Gnd
18
Main aircraft ground
19
+
Oil Press
19
Oil pressure analog signal or switch
20
+
RPM Signal
20
RPM signal
Screw on ALPHA
ALPHAALPHA
ALPHAMFD case:
Ground for shield of leads
Backlight is connected to a separate 3 pin round DIN connector, pin 1 is
+12 Volt and pin 3 is ground.
Numbers are based on numbers of sticker on case and on connection plan.
Connection of leads: Open cable cage clamps with suitable tool (screw driver) and
insert leads. Always use cable terminators!
2.4 Mounting Fuel Flow Sender
2.4.1 General Notes
The fuel capacity indicator of the ALPHA
ALPHAALPHA
ALPHAMFD works with a special fuel flow sender.
We recommend only to use the sender supplied by BRÄUNIGER , because other
senders are not adapted to the ALPHA
ALPHAALPHA
ALPHAMFD and precise function can not be
guaranteed. The fuel flow senders transmits pluses according to the actual fuel
consumption to the ALPHA
ALPHAALPHA
ALPHAMFD. These pulses are added up to a fuel capacity
indicator. The sender can be used with all kinds of fuel.