7
11/1/2016 - DOCUMENT NUMBER: 10-0309
© 2016 AEM Performance Electronics
30-0309 - BOOST/FUEL PRESSURE 15PSI SAE ONLY
Gauge Installation
Installation using supplied bracket
Installation w ithout bracket, using rubber band
A 2-1/6" (52mm) hole is required to mount the X-Series gauge. A bracket and thumbscrews are provided to facilitate
installation into a panel or gauge pod. In some cases, the gauge cup may be pushed into a mounting hole causing an
interference fit strong enough to retain the gauge; the supplied rubber band may be fit to the gauge to create a tighter fit in
mounting holes slightly larger than 52mm. It is, however, recommended that gauges be mounted securely using the
supplied bracket to ensure they never become loose and cause a hazard during vehicle operation.
Note:
The gauge is not water-proof and should not be installed in a location with exposure to water or snow. Damage
caused by water ingress will not be covered under warranty.
0-5V Analog Output
WHITE WIRE = Analog Po
BROWN WIRE = Analog Negative -
0-5V Analog Output Scaling Formulas
psig
=
(3.75 * Volts) -1.88
bar
=
(0.26 * Volts) - 0.13
The 0-5V analog output is suitable for output to devices such
as loggers or ECUs. This differential output requires special
care to ensure proper operation. The WHITE signal wire
should be connected to the positive of the analog input of the
logging device or ECU; the BROWN wire must be connected
to the negative of the analog input of the logging device or
ECU. If the logging device or ECU does not have a
differential analog input (both a dedicated positive and
negative terminal for the analog input) then connect the
BROWN wire to the shared signal ground. If the device does
not have a dedicated signal ground then as a last course of
action, connect it to the power ground of the logging device.
Important Note
: If bench testing the analog output outside
of a vehicle, a multimeter's positive lead may be connected
to the WHITE wire however the BROWN wire must be
connected to BOTH the multimeter's negative lead AND
power ground going to the X-Series device. This connection
is usually made by the circuitry inside an ECU or data
logger.
0-5V Analog Output Scaling Table
Volts
psig
bar
<0.50
SENSOR ERROR
0.50
0.0
0.0
0.75
0.9
0.1
1.00
1.9
0.1
1.25
2.8
0.2
1.50
3.8
0.3
1.75
4.7
0.3
2.00
5.6
0.4
2.25
6.6
0.5
2.50
7.5
0.5
2.75
8.4
0.6
3.00
9.4
0.6
3.25
10.3
0.7
3.50
11.3
0.8
3.75
12.2
0.8
4.00
13.1
0.9
4.25
14.1
1.0
4.50
15.0
1.0
>4.50
SENSOR ERROR
