Druck ADTS 405 Service Manual
K171 Issue No. 1 Page 4-4
FUNCTIONAL TEST
Introduction
8. This test verifies that the ADTS 405 is fully functioning, all external interfaces are tested.
When one of the keys 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.
Test Equipment
9. The following test equipment is required for this procedure:
i. PC compatible computer with IEEE 488 interface card and cable.
ii. PC-based test program for IEEE 488 communications.
Procedure
10. Connection and power-on checks
(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):
11. 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
12. 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.
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):
DRUCK
ADTS 405F
DK 127
VER x.xx
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