Druck ADTS 405 Service Manual
K171 Issue No. 1 Page 4-2
STANDARD SERVICEABILITY TEST
General
1. The following procedure can be used to check the functions and facilities of the ADTS 405. When
one of the keys on the hand terminal or local key-pad is referred to, the term PRESS is used, e.g. Press
ALT. When a menu item on the display is referred to, the term SELECT is used. In the text, the menu
item is enclosed in square brackets, e.g. Select [MORE]. Menu items are selected using the appropriate
function or ‘soft’ keys F1, F2, F3 and F4. The menu items may be shown either over the function keys or
as a list on the display.
Procedure
Connection and power-on checks
2.
(1) Connect power to the unit, connect the hand terminal. Ensure that the blanking caps
are fitted to the Ps and Pt front panel outputs.
(2) Switch the unit on using main power switch. Switch the pumps on using pump
power switch.
(3) Check power indicator is ON. Check the display shows the power-up message
as below (where x is the issue number of the installed software version number):
DK 126 Version x.xx
Display Power Up
Please Wait
(4) Check the power-up message displays as below (where x is the issue number of the
installed software version number):
3. The ADTS 405 will display any errors that are detected. Check that the power-up sequence
continues through the following stages without error:
Self Test
Measuring Ground Pressures
Equalizing System Pressures
4. Check that the display then changes to show measured altitude and airspeed (CAS) values.
Note 1: The display shows the “WARM-UP” message in the lower right corner. This signifies that full
pressure accuracy may not be achieved. The WARM-UP message clears after approximately 15 minutes.
The WARM-UP indication does not inhibit operation and these tests may proceed without waiting for the
flag to clear.
Note 2: An automatic zero takes place (if enabled) on a regular basis. The word “ZERO” appears on
the display and the state of the valves, on the mimic panel, changes for approximately six seconds. This
is normal operation. Commands may still be entered while auto -zero takes place.
DRUCK
ADTS 405F
DK 127
VER x.xx
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