GE ADTS552F, User Manual

Page: 97 / 153

E
NGINE
P
RESSURE
R
ATIO
(EPR)
K0553 Revision D 88 [EN] English
Figure 3- 32: EPR Control Screen (Method2)
3) Touch the “Aim” value (2). A numbered keypad opens.
4) Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and
the previously entered value appears in the “IN” display.
5) Touch the “Aim” value (3). A numbered keypad opens.
6) Enter the desired “Aim” value and touch the “tick” icon. The numbered keypad closes and
the previously entered value appears in the “OUT” display.
Wait for the controller to achieve the IN and OUT aim values. The EPR has now been set based
on the inlet pressure and outlet pressure.
On completion of the EPR checks, select “Go to ground” and wait for the AT GROUND message
to be displayed, see also section Go to ground. Refit the pitot and static blanking caps.
- EPR Limits
Min Inlet 60 mbar
Max Inlet 1355 mbar
Min Outlet 60 mbar
Max Outlet 2000 mbar
Min (Ratio) 0.1