Table of Contents
Advertisement
Druck ADTS 505 User Manual
LEAK MEASURE/CONTROL
•
This key switches between Control and Leak Measure mode.
•
When in leak measure mode, the display shows "LEAK MEASURE".
•
Press LEAK MEASURE/CONTROL to switch the controllers on. No significant pressure
transients are produced when regaining control.
•
When in control mode, the display shows "Aim Value".
•
A built-in safety feature called auto leak recovery protects the aircraft systems during leak
testing.
•
Auto Leak recovery automatically regains control if the leak rate is too high on either
channel. The trip values are set by the manufacturer to 3000 ft/min and 300 kts/min.
•
Auto Leak recovery can be switched on/off by pressing SETUP, [Setup 2 of 2], [Auto Leak],
ON/OFF.
GROUND
•
This key enables the automatic control of the pressures in the aircraft system to return to
local atmospheric pressure.
Note:
The "go-to-ground" operates only in control mode.
•
The ADTS 505 records local atmospheric pressure during the power-up sequence.
•
When GROUND is pressed, a prompt asks the user to confirm YES or NO. The system
automatically enters an altitude or static aim equivalent to local atmospheric pressure (QFE)
and an airspeed or dynamic pressure aim of zero. The system controls pressures towards
these aims in the normal way and at the set rates. At any time when going-to-ground, a new
rate of change can be entered, the ADTS 505 continues `going-to-ground'.
•
At any time during `going-to-ground', a new value aim for ALT, CAS, Mach, Ps, Qc or Pt can be
entered. This causes the procedure to stop and normal controlling operation to start.
•
When the system completes the go to ground the display shows the message `Safe at
Ground' with the ground and zero valves open.
•
Press CLEAR /QUIT to continue with normal operation. The ground and zero valves then
automatically close.
6 - 5
6
K0260 Issue No. 8
Advertisement
Table of Contents
