AEM 30-2500 AQ-1 Data Logging System User Manual

WARNING:

!

This installation is not for the electronic novice or the PC
illiterate! Use this system with EXTREME caution! If you are not
well versed in electronics and vehicle instrumentation or are not
PC literate, please do not attempt the installation. Refer the
installation to an AEM trained tuning shop. A list of AEM
trained tuning shops is available at

http://www.aemelectronics.com/dealer_locator.php or by calling

800-423-0046. You should also visit the AEM Tech Forum at
http://www.aemelectronics.com

NOTE: AEM holds no responsibility for any engine damage that
results from the misuse of this product!

AEM Performance Electronics

2205 126th Street Unit A, Hawthorne, CA. 90250

Phone: [phone] Fax: [phone]

http://www.aemelectronics.com

Instruction Part Number: 10-2500 Rev C

 2012 AEM Performance Electronics

P/N 30-2500 AQ1 Data Logger

Instruction Manual

KIT CONTENTS

1 x 35-2500 AQ1 DATA LOGGER MODULE W/ 2GB SD CARD
1 x DUST COVER
4 x MOUNTING SCREW
4 x HEX NUT
1 x INSTRUCTION MANUAL
1 x USB CABLE

INSTALLATION TIPS

1. Read through the entire manual and instructions before beginning the
installation.

2. Disconnect the negative battery cable(s) before beginning any work.

3. Maintain a clean and neat work area through out the installation.

4. When raising or working under a vehicle, use properly rated stands/jacks.

5. Make sure all connectors are fully seated and inserted.

6. Make sure all components and cables are routed and installed away from any
direct heat sources or sharp objects.

TABLE OF CONTENTS

 Installation 2
 Using the AQ1 Data Logger 7
 Connector Pinout 17
 Specifications 19
 Notes 19
 Recommended Parts 21
 Replacement Parts 21
 Warranty 21
 Drill Template 22

INSTALLATION

MOUNTING THE AQ1 DATA LOGGER MODULE

Find a suitable mounting location for the AQ1 Data Logger module that is shielded from
the environment (water, dirt, dust, etc) and away from any direct heat sources. The
AQ1 Data Logger comes with a flexible dust cover, but is not a sealed module.
Submerging the module or exposing the module to a direct source of moisture may
cause damage. The dust cover must be used if the module is mounted outside of a
sealed cab. The AQ1 Data Logger module must be properly oriented in order for the
accelerometer to give accurate data. A few of the more common mounting orientations
are shown below in Figure 1. A complete list is available in the software.

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Figure 1. Common Mounting Orientations

A drill template for the AQ1 Data Logger is provided on the last page of the instruction
manual. Drill the four mounting holes with a 3/16” drill bit. With the dust cover on the
AQ1 Data Logger module, secure the module using the supplied 6-32 x 1 ¼” stainless
screws and nuts. Some resistance will be felt when inserting the mounting screws for
the first time as the screws will pierce the dust cover. A sharp pick or paper clip can be
used to make pilot holes in the dust cover if desired. Note: the dust cover is made of

a specially selected material that allows the cover to be flexible, yet does not rip
or tear.

WIRING
Power Connections

RED (PERM PWR)- Connect to a fused (5 Amp) constant 12 volt power source.
RED (SWIGN) – Connect to a fused (5 Amp) switched 12 volt power source.
BLACK (BATT GND) – Connect to a clean power ground. (Do not connect to a sensor

ground)

AEMnet

AEMnet is an open architecture software and hardware interface based on the CAN 2.0
specification, which provides the ability for multiple enabled devices to easily
communicate with each other through a single cable. The hardware connection is made
through a Deutsch 4P DTM connector and contains 12 volt switched power and ground
(2A max) as well as the CAN data lines. Devices connected to the AEMnet transmit
data through this one connection and most of these devices receive power from this
same connection as well.

The following AEM products are currently AEMnet enabled:

Series 2 Engine Management System
EMS-4 Universal Standalone Engine Management System
4-Channel Wideband UEGO Controller
AQ-1 Data Logger

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Figure 2. AEM Pressure Sensors(Left) AEM Temp Sensor (Right)

Plug the Deutsch 4-pin DTM connector on the AQ1 Data Logger harness into the
mating connector on other AEMnet compatible devices. See “Using the AQ1 Data
Logger” for more information on configuring the AEMnet.

INPUT SIGNALS
Analog 1-4 are 0-5V analog inputs with optional pull-up resistor for RTD/Thermistor-

style sensor. Examples: AEM gauges, MAP/pressure sensors, TPS/APP/shock
travel/load cell sensors, analog MAF sensors, any 2 wire RTD or thermistor style temp
sensor. See “Using the AQ1 Data Logger” for more information on configuring Inputs 1-

4. The corresponding wires in the harness for Analog 1-4 are Yellow and are labeled
INPUT 1, INPUT 2, INPUT 3 and, INPUT 4.

Analog/Frequency 5-8 are analog inputs for that can optionally measure frequency (0­5 V or 0-16 V) Examples: RPM, vehicle speed, frequency based MAF, injector duty
cycle, boost control solenoid, flow sensor, hall sensor, any 3 wire pressure sensor. See
“Using the AQ1 Data Logger” for more information on configuring Inputs 5-8. The
corresponding wires in the harness for Analog/Frequency 5-8 are Yellow and are
labeled INPUT 5, INPUT 6, INPUT 7, and INPUT 8.

Connection diagrams are shown below for some of the more common sensors/signals
to be used with Inputs 1-4 and Inputs 5-8. See Figure 2.

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Figure 3 below shows the connection for an engine speed signal using an AEM Twin

Figure 3. Engine RPM Signal From CDI

Figure 4. Activation Switch (Left) and Nitrous Solenoid (Right) Connections

Fire CDI.

Digital 1-3 are switched to ground digital inputs, 16.5 V MAX tolerance.
Examples: Clutch/brake/cooling fan ground switch, nitrous solenoid ground or ground
switch input to start/stop Logger (Ground activated input). Figure 4 below shows wiring
diagrams for an on/off activation switch and a nitrous solenoid. The corresponding
wires in the harness for Digital 1-3 are Brown and are labeled SW 1, SW 2, and SW 3.

SENSOR POWER

The AQ1 Data Logger has an internal low current 5 volt power supply that is used for
powering sensors that require a 5 volt excitation. The corresponding wires in the
harness are Red and are labeled 5 VOLTS.

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SENSOR GROUND

Figure 5. Typical GPS Connection

The AQ1 Data Logger also has an internal low current sensor ground that is used for
sensors that require a signal ground. The corresponding wires in the harness are Black
and are labeled SIG GND.

RS 232
The RS232 serial input on the AQ1 Data Logger is configurable to read either a

standard NMEA GPS data stream or the data stream from an AEM EMS. See “Using
the AQ1 Data Logger” for more information on configuring the RS232 input. The AQ1
Data Logger harness comes with a male DB9 connector. When connecting to an AEM
EMS, the male DB9 connector plugs directly into the mating connector on the back of
the AEM EMS. The pinout for a GPS connection is shown below in Figure 5. AEM
recommends using one of the Garmin GPS models listed below.

Garmin GPS 18x PC – 1 Hz model with DB9 connector and 12 volt power adapter
Garmin GPS18x 5Hz- 5 Hz OEM model, some wiring required.

CAN BUS 2

Not used with AQ1 Data Logger PN 30-2500

USB

The AQ1 Data Logger has two USB ports for easy connection and programming. The
AQ1 Data Logger receives low voltage power from the USB port, allowing users to
access the SD card and make configuration changes at all times, 12 volt power is not
necessary. The black remote mount USB port in the harness is designed for easy in
vehicle programming and data downloads. The USB port on the back of the enclosure
allows for easy bench top programming and data downloads when the module is
removed from the vehicle. See Figure 6 below.

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Figure 6. AQ1 On-Board (Left) and Harness (Right) USB Ports
Figure 7. AQ1 Data Acquisition Software Icon

USING THE AQ1 DATA LOGGER

INSTALLING THE SOFTWARE

The latest version of the AQ1 Data Acquisition Software can be downloaded from the
downloads section of the AEM Performance Electronics forum at
www.aemelectronics.com/downloads. Download the AQ1 Data Logger software and
run the installer. A copy of AEMdata analysis software is included with the AQ1 Data
Logger software for viewing and analysis of log files.

USING THE SOFTWARE

Double click on the AQ1 Data Acquisition software icon and open the AQ1 Data Logger
software. The icon for the AQ1 Data Acquisition software is shown below in Figure 7.

OPEN AND SAVE CONFIGURATION FILES

AQ1 Data Logger configuration files have a .loggercfg suffix and contain the settings
and sensor calibrations of the AQ1 Data Logger. Configurations are opened and saved
using the AQ-1 drop down menu. See Figure 8 below.

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