Chapter 7. Reference
86 | ADTS 405 R/F Mk2 Instruction Manual-English © 2017 General Electric Company – All Rights Reserved.
At the end of rate timing, the rate of change on both channels are displayed for aeronautical
units ROC and RATE CAS and for pressure units RATE Ps, RATE Pt and RATE Qc. This is the
same for all display modes.
7.3.6.1 Option Displays
The key presses function, for the option displays, in the same way as a “single display” (i.e.,
the single displayed parameter comes from the last key press), with the lower half of the
display screen showing any available data from the option.
7.3.7 SETUP, [MORE], [DISPLAYS/OPTIONS], [OPTIONS]
This function allows changes to option hardware that may be fitted. See option manuals for
further details. If an option, that is not fitted, is selected the display shows the error message
“Option Hardware not fitted”. Refer to the option user manual.
7.3.8 SETUP, [MORE], [CLOSE OUTPUT VALVES]
This function closes the Ps and Pt valves to enable leak checking of the internal pneumatics of
the ADTS 405 Mk2, with the aircraft system isolated, but still connected. All the normal
functions of the ADTS 405 Mk2 may be used in this mode.
Table 7-5: Aeronautical Units Triple Display
1
st
Key Press 2
nd
Key Press Display
Any key SPEED ALT, CAS or TAS
Any key MACH ALT, CAS or TAS, MACH
Any key ROC ALT, CAS or TAS, ROC
SPEED RATE ALT, CAS or TAS, RATE CAS
Any key ALT ALT, CAS or TAS
Table 7-6: Pressure Units Triple Display
1
st
Key Press 2
nd
Key Press Display
Any key Qc Ps, Qc
Any key Pt Ps, Qc, Pt
Ps EPR Ps, EPR
Any key ROC Ps, Qc, RATE Ps
Qc RATE Ps, Qc, RATE Qc
Pt RATE Ps, Pt, RATE Pt
EPR RATE Ps, EPR, RATE EPR
Qc Ps Ps, Qc
EPR Ps Ps, EPR