Honeywell SPZ-8000 - APU EGT Display; APU RPM Display; Left Bleed Air Pressure Digital Readout; Right Bleed Air Pressure Digital Readout

2. G. (6) (a) APU EGT Display
- The EGT scale is the left scale at the top of
the display under the white label APU (Figure 235).
The EGT arc is banded with white, amber, and red
colors to
indicate normal, caution, and warnin ran es respectively. The
8 “?.
arc boundaries range between O and 1 00 The color range
definition for APU EGT is as follows:
WHITE
O ‘Cg EGT < 680 “C
&l~ER 680 “C< EGT < 732 “C
732 “C< EGT < 1000 ‘C
The EGT current value readout corresponds to the pointer
!
osition on the scale and is readable to a 1 ‘C resolution.
f the actual data goes above 1000 ‘C, the pointer remains
stationary at the upper arc limit and the digits show the
actual EGT value.
APU EGT exceedances are shown by growing the colored band to
twice the normal width and than ing the pointer and current EGT
!di ital value color (normally w ite) to match the arc region
7
co or.
(b) APU RPM Dis lay -
!
The RPM scale is the right scale at the top
of the disp ay under the label APU (Figure 235).
The RPM arc is banded with white, amber, and red colors to
indicate normal, caution, and warnin ran es respectively. The
!!arc boundaries range between O and 1 O% R M. The color range
definition for APU RPM is as follows:
WHITE O% RPM s RPM < 104% RPM
&4~ER 104% RPM s RPM < 110% RPM
110% RPM s RPM < 120% RPM
The RPM current value readout corresponds to the pointer
position on the scale and is readable to a 1% RPM resolution.
If the actual data goes above 120% RPM, the pointer remains
stationary at the upper arc limit and the digits show the
actual RPM value.
APU RPM exceedances are shown by growing the colored band to
twice the normal width and than ing the pointer and current RPM
!di ital value color (normallyw ite) to match the arc region
7co or.
(c) Left Bleed Air Pressure Digital Readout - Directly below the
APU EGT arc is the left bleed air ressure di ital readout.
k’
!
The white digital readout is reada le to a 1 S1 resolution.
(d) Right Bleed Air Pressure Digital Readout - Directly below the
APU EGT arc is the right bleed air ressure di ital readout.
Y
!
The white digital readout is readab e to a 1 P I resolution.
22-14-00
Page 298.3
Aug 15/91
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