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Users Guide: iMFD Sensor Module

Version 1.0 February 9, 2007

www.plxdevices.com

(408)745-7591

iMFD Sensor Module SM-Vac/Boost

*Please read the instructions completely through at least once before proceeding with the

installation to minimize errors.

*Double check polarity of power before powering it on for the first time.

Overview:

(Figure 1)

1. Connects to 12V-18V power source

2. Analog outputs (0-5V linear output)

3. Termination jumper. Closed for first SM in iMFD daisy chain.

4. Connects to next SM in iMFD daisy chain or to first DM

5. Connects to previous SM or unconnected if first SM in iMFD daisy chain

6. Connects to vacuum hose from intake manifold.

Install the Vacuum Hose:

1. The SM-Vac/Boost module has a 3 bar MAP sensor built-in. Connect a 1/8” vacuum hose to the sensor shown above #6

2. For high boost application 15PSI and up, it is a good idea to install a zip tie around the vacuum hose to prevent it from

coming lose.

Connecting Power to the Unit:

CAUTION! CONNECTING THE SM-Vac/Boost IN REVERSE POLARITY

WILL DAMAGE THE UNIT! CHECK CONNECTIONS BEFORE POWERING

ON.

1. The SM-Vac/Boost accepts 12-18V DC for power. Connect the negative wire (black) to your vehicle’s ground. This is usually

the negative terminal of your automobile’s battery. Connect the positive wire (red) to your vehicle’s ignition power. This

power is only supplied when your key is turned passed a specific position and is off when your key is removed. Your power

connection must be capable of supplying at least 1 amp of current. A 5 Amp fuse is recommended for safety.

*If you plan to integrate the SM-Vac/Boost with other aftermarket devices by utilizing the analog output signal wire. Make sure that

the negative wire (black) is connected as close as possible to your device's ground. This guarantees that both devices "see" the same

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Users Guide: iMFD Sensor Module Version 1.0 February 9, 2007 Version 1.0 February 9, 2007 www.plxdevices.com (408)745-7591 iMFD Sensor Module SM-V

Users Guide: iMFD Sensor Module Version 1.0 February 9, 2007 www.plxdevices.com (408)745-7591 reference ground and a more accurate interpretation o

Users Guide: iMFD Sensor Module Version 1.0 February 9, 2007 www.plxdevices.com (408)745-7591 (Figure 5) Vacuum Range (0V = 30.5inHg = -15PSI, 1.

Users Guide: iMFD Sensor Module Version 1.0 February 9, 2007 www.plxdevices.com (408)745-7591 Specifications: Physical Dimensions 2" x 2.875&

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Plx-devices SM-V/B Manual do Utilizador