J.P. Instruments Slim Line Gauges Installation Guide - Manual (Page 5)

INSTALLING THE SLIM LINE® INSTRUMENT SERIES PAGE 5 OF 14
REV B
from engine
MP Sensor
T-fitting
connector
MP gage
11) Induction Air (IAT), Compressor Discharge Temperature Probe Installation
The Induction Air Temperature probe, (IAT), is installed just after the inter-cooler and the Compressor
Discharge Temperature (CDT) just before the inter-cooler. The probe is the same as an EGT probe and installed
similarly to an EGT probe. A large clamp is supplied to fit around the air port leaving the inter-cooler.
Alternately a 1/8 NPT fitting is available.
12) Carburetor (CRB) Probe Installation
Locate the access hole in the carburetor near the butterfly valve. Remove the screw plug and screw the CRB
probe into the carburetor throat.
13) Manifold Pressure (MP) Sensor
Installation
Install a T-fitting (not supplied) in the aircraft’s MP
gauge line in the cockpit near the MP gauge. Install
the MP sensor on the T-fitting. Later, you will
connect the MP sensor to the wiring using the 4-pin
connector supplied.
14) Oil Pressure, Fuel Pressure, Boom Pressure Sensor Installation
Mount the two ring-spade lugs to the two terminals on the sensor using the hardware supplied. Mount the
pressure sensor to the pressure line using a 6 inch flexible hose and fittings (not supplied) as depicted in the
drawing below. Use tie-wraps to mount the pressure sensor an engine mount structure. Do not mount the sensor
directly to the engine. Connect the other end of the hose to the existing pressure line, with a T-fitting if
necessary. Later, you will connect the pressure sensor to the two pressure sensor wires.
pressure
sensor
flexible tube 6 inch (AEROQUIP 303)
AN-910-1D
1/8 NPT coupling
AN-816-4D
1/8 NPT to flared MIL-H-8794 hose
MS-24587 fitting (AEROQUIP 491, 2 req'd)
to engine
fitting
DO NOT MOUNT SENSOR DIRECTLY TO ENGINE
15) VOLT/AMP Shunt Installation
Install the current shunt in the electrical system.
Charge/Discharge configuration. The shunt can be installed between the master contactor and the main bus in
which case it will be in the ammeter configuration showing battery charge and discharge. Be sure that the
positive side of the shunt is connected to the main bus in the ammeter configuration. The alarm will be triggered
by a discharge condition.