1 Druck ADTS 2XX User Manual
K0451 Issue No. 1
1 INTRODUCTION AND DESCRIPTION
This three channel air data test system provides accurate air data to test a three port, pitot-static
Smart Probe
™ and other three-channel systems. To control the system, a touch screen on the
front panel enables the user, using a stylus (supplied), to send commands to each control channel
and to control test pressures either manually or from a stored test sequence. An advanced hand
terminal connected to the front panel can perform the same functions as the touch screen.
User-written test sequences, produced on a spreadsheet program can be uploaded from a pc to
the ADTS 2XX. Once stored in the system, the test sequence uses tables of pressure data to
simultaneously generate pressure aims for all three channels.
Smart Probe
™
The probe uses three pressure measurement channels identified as Ps1, Ps2 and Pt. The aircraft
air data computer system receives these three parameters and calculates altitude, airspeed and
angle of attack.
where:
Ps1 = static pressure
Pt = pitot pressure
Ps2 = static pressure
Ps1 = altitude
Ps1 - Pt = Qc (airspeed)
Ps1 - Ps2 = differential pressure, calculated with Qc, to produce angle of attack.
FIGURE 1-1 ADTS 2XX GENERAL ARRANGEMENT
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