GE PACE5000 User Manual page 77

PACE Pressure Controller User Manual
Example of Altitude and Airspeed Testing
This example shows how two-channel PACE instruments can be used to generate altitude and
airspeed.
Cautions:
1. Before testing, set the rates of change for both Pitot and Static to a safe value. A
high rate of change can damage sensitive aeronautical components. Refer to the
appropriate Component Maintenance Manual for the unit under test.
2. In this example configuration, negative airspeed can be generated this can
damage an airspeed indicator. To prevent negative airspeed, apply the static
pressure before the pitot pressure for increasing and decreasing airspeed values.
Units
• The units can be either the aeronautical or pressure units. At any time, the units can
be changed between pressure and pressure converted to aeronautical units. The
display shows the outlet pressure converted to Altitude, CAS or Mach using BS 2G
199:1984* conversions and assuming standard atmospheric conditions.
* Based on tables from ICAO Standard Atmosphere 1964.
Reference Pressure
• Select the required reference pressure, this can be either the barometric pressure
(from the instrument's internal barometric sensor), or any numeric value (e.g.) 1013.25
mbar.
Go to ground
• Returns the instrument and any unit under test (UUT), connected to it, safely to ground
pressure at a controlled (timed) rate.
K0443 Issue No. 3 6 - 23