Electronics International CGR-30P User Manual

Page 22

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. Connect the port tagged
"Press" to the aircraft overboard pressure line. A flare or barb fitting may be used to connect these lines.
Care should be taken not to put excess pressure on the flexible line leading to the pressure transducer.
Make sure there are no kinks in the flexible pressure lines.

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

Overboard Pressure Line

Gyro Vacuum Line

(Red)
(Blk)

(Wht)

PRESS

VAC

To EDC

Press Input

(Top Connector)

(Grn)

C. Oil Pressure Transducer Installation:

Oil Pressure Transducer Installation:

Find a convenient location on the firewall or a
bracket and mount the pressure transducer with the
clamp provided. The oil pressure line does not have
to be routed into the cabin area, although you will need access on the cabin side of the
firewall to tighten the pressure transducer clamp nut. Do not mount the pressure
transducer to an engine baffle or directly on the engine with the transducer
supported by an adapter or fitting. Vibration can cause the adapter to break,
resulting in loss of engine oil. The pressure transducer is equipped with an 1/8" NPT
male port. This port can be adapted to any oil pressure line. Use only a flexible hose
and fittings suitable for aircraft use. Route a flexible oil pressure line from the primary
oil pressure pickup point to the pressure transducer and tighten all fittings.
Do not use the case of the pressure transducer to tighten the
pressure fittings. Maintain any restrictive orifice currently in the system.

Some fittings you may want to consider using are listed below:

The PT-100GA Pressure
Transducer is used on
most engines for pressures
up to 120 psi.

(Red)
(Blk)

(Grn)

(Wht)

To EDC

Press Input

(Top Connector)

PT-100GA

1/8 NPT Male

1/8 NPT
Coupler

AN910-1D

#2 Straight - AN816-2D
#3 Straight - AN816-3D
#4 Straight - AN816-4D

#2 45' - MS20823-2D
#3 45' - MS20823-3D
#4 45' - MS20823-4D

#2 90' - MS20822-2D
#3 90' - MS20822-3D
#4 90' - MS20822-4D

1/8 NPT Male

Flare