K114 Issue No. 9
3 - 10 Operation
3.5 Operation and Example Procedures
3.5.1 Checks Before Use
Inspection and Cleaning
Inspect the external of the ADTS 405, and its associated equipment, for damage, dirt,
and the ingress of moisture. If necessary, use foam cleaner and a lint-free cloth to
clean the external surfaces.
Inspect the pressure outlet ports for ingress of dirt and moisture, clean if necessary
with a lint-free cloth.
3.5.2 Operating Procedures
The procedures show the steps required to make sure the ADTS 405 is serviceable and
the settings required to test an aircraft system or component. For further information
refer to the quick reference charts, at the end of this section, and Section 6 - Reference
and Specification.
In the following:
All key presses are highlighted in bold and shown as identified on the key-pad.
Key presses inside brackets e.g., [MORE], are soft key presses (i.e., function key
selections {F1 to F4} indicated on the display screen).
Help System
The help information includes further details of the function and details associated
functions, also see the Reference Section 6.
3.6 Power-up
Check the power indicator is illuminated and set the front panel power switch to
OPERATE.
The display shows the following sequence:
a. Display power-up screen.
b. ADTS 405 power-up screen.
c. Date of the last calibration and type of main transducer fitted.
d. Self-test message.
e. Measuring ground pressure message.
f. Equalising system pressures message.
g. Display shows Leak Measure mode and the number of parameters last selected in
configuration.
The ADTS 405 always powers-up in Leak Measure mode with the pressure controllers
off. When changing to Control Mode the pump unit must be switched on and
producing the correct pressure and vacuum.
Note: The display at power-up can be changed, see CONFIGuration.
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