Chapter 6. REFERENCE AND SPECIFICATION
92 | ADTS 405 Mk2 Instruction Manual-English © 2015 General Electric Company – All rights reserved.
Note: The ADTS 405, when delivered, contains “Standard” and “Civil” limits; to
set and store “Max” limits, for the first time, enter configuration. The “Max”
limits depend on the range of the pitot channel either 850 or 1000 knots, see
section 1.3, operating limits. The system's defined “STANDARD”, “CIVIL” and
“MAX” limit sets cannot be redefined. A defined set can be edited but must be
saved using a different name. This method could save time.
The parameters are:
6.2.59.1 NAME
The aircraft name or component/system name/number is used for selecting the set of limits in
SETUP or CONFIG. Enter up to 8 characters using 0 to 9, - (minus), (decimal point) and any
alphabetic characters in any order or combination.
a. To enter a alphabetic character (A to Z), press [ALPHA] and use the nudge keys to change
to the required character. Press [ALPHA] again to enter another alphabetic character.
b. Press [BACK] to delete the last character. When editing text use the CLEAR/QUIT key to
cancel editing.
6.2.59.2 MIN ALT, MAX ALT, MIN CAS, MAX CAS
These are the fundamental aeronautical unit limits.
6.2.59.3 MAX MACH
This limit only applies in aeronautical mode. It can be used to set a maximum Mach (e.g., Mach 1.05).
If a Mach limit is not required, enter a high value (e.g., 10). The Mach limit can be changed or
disabled in full set-up mode using SETUP, [MACH], see SET UP, MACH for further details on Mach
limits.
6.2.59.4 MAX ROC, MAX RATE CAS
These limits are the maximum rate of change for altitude and airspeed and only apply in
aeronautical units.
MIN Ps, MAX Ps, MIN Qc, MAX Qc
These are the fundamental pressure unit limits.
6.2.59.5 MAX RATE Ps, MAX RATE Qc
These limits are the maximum rate of change for Ps and Qc and only apply in pressure units.
Name Max Ps
Max Alt Min Ps
Min Alt Max Qc
Max CAS Min Qc
Min CAS Max Rate Ps
Max Mach Max Rate Qc
Max ROC ARINC Limits
Max Rate CAS Altitude Correction
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