Electronics International MVP-50P - Manual (Page 39)

2.16 Install the Resistive Fuel Level Module (RFLM-4-X):
The RFLM-4 is a Resistive Fuel Level Module that provides pull-up resistors for 4
resistive fuel level sensors. This module is required to interface an EDC Resistive
Fuel Level Input to a Resistive Fuel Sensor.
Warring: Warring: Warring: Warring: Warring: DO NOT connect an RFLM-4 to the output of an existing aircraft’s
Capacitive System, damage to the system may occur. The small output voltage of
an existing capacitive system currently drives a fuel level gauge. This output
wire should be routed to one of the resistive fuel level inputs on the EDC with NO
connection to an RFLM unit.
There are two RFLM-4 modules available. The RFLM-4-12V operates
on a 12-volt electrical system and the RFLM-4-24V operates on a 24-
volt electrical system. The appropriate model must be used.
Mount the RFLM-4-X to the inside firewall or to an equipment bay
under the aircraft instrument panel. Use the holes in the bottom plate
to mount the unit. Only two mounting holes are required.
Note: For each Fuel Level Channel on the EDC you can use either the Resistive Input or the Capacitive Input, but
not both.
To EDC Resistive Fuel
Level Inputs (Bottom Connector)
and the Fuel Level Sensor.
2.17 Install the Voice Alarm Control Panel (OEM or Experimental Only):
If the voice alarms provided by the MVP are to be
used, the AV-17CP Control Panel will need to be
installed in the aircraft instrument panel.
A. Locate the Control Panel and Switch in the
AV-17CP packet. Find an appropriate
mounting location on the aircraft instrument panel for the Control Panel and
Switch. The Switch will require a 3/4" clearance behind the aircraft instrument panel.
B. Using the AV-17CP Control Panel as a template, mark the aircraft instrument panel and drill a 1/4"
hole for the AV-17CP Switch.
C. Mount the Switch from behind the aircraft instrument panel. Be careful not to damage the
silkscreening on the Control Panel. The Switch must be mounted with the white/orange wire up white/orange wire up white/orange wire up white/orange wire up white/orange wire up.....
The lock washer should be mounted on the Switch and behind the aircraft instrument panel.
2.18 Install the Intensity Control Pot
(Optional):
The display intensity of the MVP may be controlled internally
with an electric eye or externally with an Intensity Control
Pot (CP-1). The selection is pilot programmable. If the
intensity is to be controlled externally, an CP-1 will need to
be installed in the aircraft instrument panel.
31
Nut
Pot
1/4" Hole
Knob
Aircraft Instrument Panel
To MVP
(Wht/Orng)
CP-1
AV-17CP, Control Panel
White/Brown
White/Red
White/Orange (OFF)
(ACK)
(+5V)
To MVP