Sandia Aerospace SAE 5-35 Installation Manual User Manual

Page 10

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3.4

STATIC PORT CONNECTION

A standard 1/8 - 27 NPT brass fitting is provided on the front plate of the encoder for attaching to the
aircraft static air system. An adapter may be used to convert this to match the aircraft static plumb-
ing. When attaching the mating fitting, make sure that it is secure and free from leaks that can induce
errors in the static system. In installations where an existing encoder is being replaced, the existing
tubing and fittings should be examined for any damage or deterioration and replaced if necessary. To
reduce the likelihood of the brass fitting rotating while installing the static lines, a “D” shaped hole is
used to mount the brass fitting into the front panel. Upon completion of installation of the SAE5-35, a
Case Leak test is to be performed per FAR Part 43 Appendix E

NOTE: Since significant force can be applied to the encoder
during static fitting installation, dual wrench techniques are al-
ways recommended to avoid damage to the encoder.

3.5

ELECTRICAL INSTALLATION

The SAE5-35 is designed to operate from 11-32Vdc without any special wiring considerations.
Power can be supplied from the transponder’s switched A+ output, the transponder circuit breaker or
from the aircraft buss. If supplied from the aircraft buss, the line must be protected with a 2 amp fuse

Figure 3-1

SAE5-35 Outline Dimensions (with tray)

9

J4

J5

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