TB 1-4920-443-35
c. Performance Check (AEDATS IV Only)
(1) Ensure that the FEDS system is in the T53/T55/T63 mode (Reference FEDS operator's manual).
(2) Connect the decade resistor to pins N and K of the T55 Flight harness, or N and P of the T53 Flight
Harness.
(3) Adjust the decade resistor to obtain the TI engine oil inlet temperature ADEATS indications listed
below. At each indication verify that the decade resistor indicates within the tolerance limits listed.
Record results.
NOTE
Turn switch to 712 on signal conditioning chassis.
Table 56-3 AEDATS IV Indications
Decade Resistor (ohms)
AEDATS 4
(ORBT)
+/- 2 F
90.34 to 90.42 Ω
(32F)
97.27 to 97.35 Ω
(68F)
104.56 to 104.64 Ω
(104F)
111.78 to 112.78 Ω
(140F)
119.86 to 120.86 Ω
(176F)
128.35 to 129.35 Ω
(212F)
141.80 to 143.00 Ω
(266F)
151.31 to 152.51 Ω
(302F)
176.95 to 178.95 Ω
(392 F)
NOTE: For use with AEDATS IV Configuration only.
AEDATS Alignment See Calibration of Automatic Data Acquisition H355-7
(AEDATS IV) for FEDS Alignment requirements.
67
