Chapter 3. OPERATION
30 | ADTS 405 Mk2 Instruction Manual-English
© 2015 General Electric Company – All rights reserved.
Example
To apply an altitude of 5000 ft at a rate of climb of 6000 ft/min and an airspeed of 300 kts at a rate
of 600 kts/min:
i.
SPEED/Qc
then
RATE
to select rate of change of speed.
ii.
6, 0, 0, ENTER
to set the rate.
iii.
SPEED/Qc
to select airspeed.
iv.
3, 0, 0, ENTER
to set an airspeed of 300 kts (airspeed [CAS] now starts increasing).
v.
ROC/Ps Rate
to select rate of climb.
vi.
6, 0, 0, 0, ENTER
to set the rate of climb.
vii.
ALT/Ps
to select the altitude.
viii.
5, 0, 0, 0, ENTER
to set altitude ([Alt] altitude now starts increasing).
ix.
SPEED/Qc
to view altitude and airspeed together.
Note:
When altitude and airspeed are changing at the same time, and
automatic airspeed rate is enabled, the system automatically adjusts the
airspeed rate so that the aim points are reached at the same time. The airspeed
rate will not exceed the entered aim value.
Wait for the aim values to be achieved. Observe over a period of 1 minute that the value of Alt stays
within ±10 ft and the value of CAS with ±1 kt.
After a successful leak test, the ADTS 405 is ready to be connected to an aircraft system or unit
under test.
If the preliminary leak test is unsuccessful:
h.
Leave the system to achieve thermal stability for a further five minutes, press
CLEAR/
QUIT
and repeat the leak test.
i.
After another unsuccessful leak test:
j.
Disconnect both hoses, check the condition of the o-rings on the Ps and Pt connectors as
detailed in the maintenance section and firmly replace the blanking caps.
k.
Press
CLEAR/QUIT
and repeat the leak test procedure.
l.
After a successful leak test without hoses connected:
m. Replace or repair the faulty hose(s) and re-test.
n.
If the ADTS 405 fails the leak test without hoses connected, switch off and return the unit
to the repair depot.
Note:
Compressing a gas generates heat. Gas heated or cooled in an enclosed
volume causes a pressure change. It is important, especially for leak testing, to
allow enough time for the heated gas to cool and the pressure to stabilize.
ALT 4050 ft
Aim 5000
CAS 289.0 kts
Aim 300.0 <
Summary of Contents for Druck ADTS 405 R/F Mk2
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