Emsis — Manual
6.2
Connection to the Electrical System
Figure 29:
Side photo of Emsis 80mm version with all cables con-
nected
6.2
Connection to the Electrical System
The Emsis unit must be connected to a 12 V DC standard aircraft
power source. Additionally it can be connected to the backup battery
– UPSU unit.
Do not connect it to a 24 V system. If you do, you will probably not
damage the equipment, but the screen will be black. If you have a
24 V system in your aircraft, then you need a voltage adapter from
24 to 12 V.
The Emsis display consumes very little power (less than 2 W), which
means about 0.15 A at 12 V. We recommend connecting Emsis using
appropriately rated breaker or replaceable fuse on the power input.
A 1 – 2.5 ampere fuse is appropriate.
Make sure that all units share the same common ground. There
should be none or minimal voltage (up to 10 mA) between common
ground and each unit ground, when all units are turned on. Other-
wise your aircraft electrical system needs a good inspection.
Emsis with AHRS unit built-in is shipped with 1 m power cable with
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Kanardia
2021