GE Druck ADTS 505, User Manual, Page: 15 / 124

Description 1 - 1
K0260 Issue No. 8
1
1 INTRODUCTION
1.1 Introduction
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The ADTS 505 is a self-contained flight-line air data test system, enclosed in an ABS case. The
unit provides complete pressure and vacuum measuring and control for on-aircraft sense and
leak testing, functional tests of air data instruments, components and systems.
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The ADTS 505 displays and operates in either units of pressure measurement or aeronautical
units. In the control mode, the rate that the pressures change towards new set-points can be
controlled in true aeronautical rate units.
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There are two independent pneumatic channels connect to the aircraft or instrument systems,
one for static and one for pitot. They can be operated as measure only channels with leak
testing facilities or each can be control channels producing true pressure conditions for altitude
and airspeed. Two pneumatic outlet ports, on the front panel and identified as Ps (static) and
Pt (pitot) provide connection to the aircraft system or unit under test.
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To protect sensitive instruments and equipment a `ground' facility automatically and safely
controls both channels to atmospheric pressure at the previously entered rates of change and
then informs the user when both channels are safely at `ground'.
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Pre-defined sets of limits, stored in the system, prevent excessive pressures and rates
damaging aircraft systems and components. A further five sets of operating limits can be
defined by the supervisor or quality assurance engineer. The user can select sets of limits but
cannot change the values.
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The user interface is either the key-pad and display on the front panel or one of two types of
optional hand terminal connected to the front panel. The two types of hand terminal are
identified as option A and option B.
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The option A hand terminal contains all the facilities of the front panel key-pad and display.
The key-pad contains fixed function keys used to select various parameters, modes and enter
numeric values. The display shows various menus, each menu provides selections using six
menu-defined function keys.
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The option B advanced hand terminal is a computer-based device that contains all the facilities
of option A on a touch-sensitive, Windows® display, colour screen. It also up-loads and down-
loads user-defined test programs and displays the resulting test data.
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The integral pumps of the ADTS 505, produce pressure and vacuum supplies for the unit's
controlling requirements. The power supply connection for the unit is located on the front panel.