Horizon Engine Instrument/Engine Monitoring System - Piper SARATOGA II HP PA-32R-301 Pilot Operating Handbook

PA-32R-301, SARATOGA 1.1 HP
SECTION7
DESCRIPTION & OPERATION
7.8 HORIZON ENGINE INSTRUMENT/ENGINE MONITORING
SYSTEM
The Horizon Engine Instrument/Engine Monitoring System is a
microprocessor based instrument with analog and digital format displays of
engine related instruments. The Engine Instrument/Engine Monitoring System
can be divided into two parts: 1) the Digital Display Monitoring Panel
(DDMP) and
2)
the single/dual analog instrument displays (see Figure
1).
The DDMP is a microprocessor which monitors/records engine parameter·
exceedences and provides the interface between a GPS receiver and engine
parameter sensors for digital display of the analog instruments, engine
%
power, electrical system status, outside/cabin air temperature, and fuel
management. The DDMP displays its information on 6 eight character displays
which are controlled via an Up/Dwn button, a Select button, and a rotary mode
selection knob.
NOTE
When both analog and digital presentations exist
for an aircraft instrument, analog formats are the
primary source of information and digital
displays are considered as advisory only.
The rotary mode selection knob allows the user to cycle through the 6 top
level operations:
1. FUEL - Fuel management
2. INST - Engine instrument display
3. ELEC- Electrical parameter display
4. EXCD - Exceedence record display
5. % PWR- Engine percent power display/determination
6. TEMP - Temperature display .
ISSUED: JUNE 30, 1997 REPORT: VB-1669
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