Electronics International MVP-50P User Manual

Page 24

Connect the aircraft manifold pressure line to the pressure port on the PT-30ABS Pressure Transducer. Be
sure this line is tight. This pressure port is a 1/4" flare union and is standard for most manifold pressure lines.
Care should be taken not to put excess pressure on the flexible line between the flare union and the pressure
transducer. Make sure there are no kinks in the flexible pressure line.

Note: Many certified aircraft have a very small hole in the manifold pressure line to create airflow back to
the intake manifold. This small flow of air keeps fuel from working its way into the manifold pressure
gauge (or transducer), which can cause damage to the transducer over time.

Note: The PT-30ABS can measure manifold pressure up to 36.0" Hg. For manifold pressures above 36.0"
Hg. use the PT-60ABS pressure transducer.

B. Gyro Vacuum Pressure Transducer Installation:

Gyro Vacuum Pressure Transducer Installation:

Mount the PT-05Diff Pressure Transducer on the inside firewall or in the equipment bay under the aircraft
instrument panel. Use the holes in the bottom plate to mount the PT-05Diff. Only two mounting holes are
required.

Connect the aircraft gyro vacuum line to the port tagged "Vac" on the PT-05Diff. Leave the port tagged
"Press" open for non-pressurized aircraft. On pressurized aircraft connect the port tagged "Press" to the
gyro overboard pressure line. Be sure these lines are tight. The ports are 1/4" flare union. Care should be
taken not to put excess pressure on the flexible lines. Make sure the flexible lines do not kink.

The PT-30ABS, Pres-
sure Transducer is used
on most engines for
Manifold Pressure (0 to
36" Hg.).

.170" ID Flexible Tube

Aircraft M.P. Line

(Red)
(Blk)

(Grn)

(Wht)

To EDC

Press Input

(Top Connector)

The PT-05Diff, Pressure
Transducer (0 to 6" Hg)

Open or Overboard

Pressure Line

Gyro Vacuum Line