5 - 2 Testing and Fault Finding
K0260 Issue No. 8
5.2 Standard Serviceability Test
The following procedure shows if the unit is serviceable and checks functions and facilities of
the ADTS 505. In this procedure:
• All key presses are highlighted in BOLD and shown as identified on the front panel.
• Key presses inside brackets e.g., [Units], are soft key presses (i.e., function key
selections {F1 to F6} indicated on the screen).
Procedure
Connection and power-on checks.
• Connect power to the unit.
• Make sure the blanking caps are fitted to the
Ps and Pt front panel outputs.
• Set the power supply switch to ON.
• Check power indicator is on.
• Check the display shows the first power-up
message.
Check the display all the power-up messages.
• The ADTS 505 displays any detected errors,
refer to fault finding.
• Check that the display then changes to show
measured aeronautical or pressure values. This
depends on the display set-up.
N
OTES
1 The displayed values change as atmospheric pressure changes at power-up.
2 The unit requires
15 minutes to
warm-up to
achieve full
accuracy and
stability.
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