
TRT800A / P/N 800ATC-A-(2xx)-(3xx)
Operation and Installation
36
Document-No: 03.2114.010.71e / Revision: 2.20
4.4.4 Altitude Correction/Offset
The TRT800A has an integrated, temperature compensated high-
precision pressure sensor. This sensor is factory-calibrated so that it will
yield accurate flight level (uncorrected pressure altitude) within the entire
altitude range.
However, due to differences in calibration of the TRT800A pressure
sensor and the altimeter in the cockpit, it may become necessary to
adjust the TRT800A pressure readings so that the value indicated and
transmitted by the TRT800A corresponds to the indication of the primary
altimeter seen by the pilot within 125 feet (as specified in ETSO
C88a/SAE AS 8003).
The check for correspondence between the primary altimeter and the
TRT800A is usually performed every 24 months as part of the aircraft's
altimeter checks.
Altitude correction is based on setup configurable offset values at five
interpolation points ( 2000, 10000, 18000, 25000 and 35000 ft). The
offset value itself is limited to a range from -100 to + 100ft at each point
(10ft steps).
Setup
→
4.5.5
Содержание TRT800A-OLED
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