Table of Contents
Advertisement
33 Secure all wires.
34 Make proper log book entries, including any deviations or corrections in engine/airframe time indicated on the tachometer.
35 Note any deviations in tachometer or circuit breaker location from those positions recommended in the drawing accompanying any
STC'd P-1000.
ignition switch (see Figure 6). Do not connect any part of the P-1000 to a spark plug wire or any part of the high voltage secondary
ignition circuit as serious damage may result to the P-1000 and to the pilot. Do not cut into any existing shielded P-Lead wire.
Connection of the P-1000 P-Lead wires to the P-Leads a the ignition switch will provide for the
best possible detection of hot-magneto/shorted-magneto conditions due to failing P-Lead
wires or malfunctioning ignition switches.
The P-Lead wires supplied with the P-1000 are shielded, and the shields are terminated at the
P-1000. Normal installation would not require that the other end of the shields be grounded,
preventing the possibility of ground-loops from interfering with magneto/tachometer
operation.
Excessive noise problems may require alternation in the wiring/grounding
techniques.
The ends of the P-Lead wires are factory stripped clean of the shields, and
protected from accidental contact with heat-shrinkable tubing, for ease of installation.
HORIZON INSTRUMENTS, INC.
P-1000 INSTALLATION & INSTRUCTION MANUAL
Title:
CONNECTIONS
A standard MS style connector is supplied on the rear of the
P-1000 tachometer with six connections, as illustrated in
Figure 5.
Using the pre-wired cable provided, black wire labeled
"Ground" is connected to a suitable electrical ground of the
aircraft's instrument power buss. The white, un-shielded, wire
labeled "Battery+" is connected to supplied circuit breaker,
connected to the positive voltage connection of the main
power buss. Position the circuit breaker as indicated in any
included installation drawings.
The "Right Magneto P-Lead" and "Left Magneto P-Lead" wires
are connected to the right and left magneto P-leads at the
P103050
Number:
E
16 of 23
Revision:
Page:
Hide quick links:
Advertisement
Table of Contents
