EMSIS – User’s and Installation Manual
PFD back panel.
4. Apply some lock-tight and thread the external nut to the probe. The lock-tight is necessary to
avoid losing the cap due to vibrations.
5. Tighten the internal nut so that the probe sits firmly and apply lock-tight on the nut. Do not over
tight it.
6. Slide the plastic insulation tube over the exposed threads of the probe and cover as much threads
as possible. Shrink the tube using hot air blower. Do not use open flame. Plastic insulation (shrink)
tube also serves as internal isolation of the sensor located in the tip.
Figure 34: Inserting the OAT probe (left), cap is in place, tighten the internal nut, slide the insulation tube
(right).
7.5 Connection to the CAN Network
Both CAN ports at the back of the EMSIS unit are equivalent.
In most standard configurations with EMSIS EMS, one CAN port is used to connect with DAQU (engine
monitoring unit), while the other is unused or connected to other EMSIS unit.
In standard configurations with EMSIS PFD, one CAN port is connected to terminator, while the other is
unused or connected to other EMSIS unit. One CAN port may be used to connect with DAQU (engine
monitoring unit), in this case terminator can be disconnected.
Just to remind you, DAQU unit has a 120 Ω CAN network terminator resistor built-in to start and
terminate the network.
7.6 Connection to the 485 Network
The RS-485 connector is obsolete. It was used to connect devices via 485 protocol. It will be replaced by
RS-232 connector in forthcoming versions.
7.7 GPS Antenna Installation
Please, consider mounting the GPS antenna using the following recommendations:
•
Find a good spot in a cabin where the antenna is able to see blue sky during most of the aircraft
movement. Such a good spot can be usually found on the top of the instrument panel cover, just
below the canopy.
•
Mounting surface should be flat, clean and rigid.
•
Avoid close proximity to any transmitting antennas like radio stations,
transponders or any
other active GPS antennas (GPS antennas may interfere each other).
•
Antenna must not be covered or obstructed by metals (metals sheets,
rods) or any other
conductive material (like carbon fibers).
•
The
triangle/GPS text
must point upwards – to the sky. For the installation use self-adhesive tape
and fix the antenna on a rigid and clean surface.
•
The supplied antenna is not intended to be installed on the aircraft exterior. If you need to install
the antenna on the external surface, search a suitable antenna in your local avionics shop. Any 3.3
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