GE Druck ADTS 405 R Mk2 Instruction Manual page 83

d. Press Ps and wait for the aim values to be achieved.
e. If auto-zero is enabled, wait for an auto-zero to take place.
Note: During auto zero, the valve state changes on the mimic panel and the
display shows "Zero" in place of the airspeed aim value. The time to auto-zero
should be less than 1 minute from achieving the aim value.
f. Wait for a minimum of 20 seconds after auto-zero before proceeding.
g. Observe the measured values of Ps and Qc on the display for 1 minute.
h. Check that the displayed value of Ps remains within ±0.068 mbar.
i. Check that the displayed value of Qc remains within ±0.068 mbar.
Note: If a further auto zero takes place, allow the display to stabilize following
the auto zero before proceeding.
© 2017 General Electric Company – All Rights Reserved.
Further Testing
ADTS 405 R/F Mk2 Instruction Manual-English | 65