GE ADTS 542 Instruction Manual page 139

P O P O C
T NLY OR S NLY ONTROL MODES
Figure 3-55 shows that the Ps channel is in Measure mode and the Pt channel is in Control mode,
as shown by the indication (2).
14) On the ADTS, open the Ps port cap to atmosphere.
15) Connect the Pt port to the aircraft Pitot system.
16) Begin single channel airspeed control.
137
Figure 3-55: Pt Only control mode