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Don’t expect all downloaded transaction data to be perfect. Improper initial configuration of the
FMUs or AIM2™ modules may result in incorrect data. This is verified by post-installation tests
performed in accordance with the Acceptance Test Procedure (ATP) provided in the back of this
manual.
Don’t let vehicles sit for extended periods of time without charging the battery. An AIM2™ is
another vehicle accessory drawing approximately 30 milliamps. Extended periods of inactivity
without charging the battery may draw the battery down.
Don’t expect nozzle tags to last forever. Continued exposure to fuel, ozone, the sun’s radiation
and human contact will, over time, cause the material to break down.
Do’s
Do mount an FMU on each fuel island. AIM2™s were designed to transmit 50 feet between a
vehicle at a fueling point, and the FMU controlling that fueling point. Fueling vehicles on islands
where there are no passive FMUs results in extended RF range, and continual vehicle movement
between the islands, both of which will degrade RF performance.
Do consider remote, external antenna configurations for both the vehicle and FMU where
existing conditions may limit RF performance. These antenna options may be used to increase
range.
Do request assistance with scenarios requiring more than 50 feet of FMU to vehicle range.
Our experience could save a lot of time and expense with scenarios which may not match the
requirements listed herein. Discuss with your FuelMaster
®
regional sales manager or distributor.
Do protect environmentally exposed AIM2™ modules. If the only available enclosure on the
vehicle or equipment is metal or fiberglass, purchase an inexpensive weatherproof plastic box to
house the AIM2™ module, or mount the module in the existing metal or fiberglass enclosure and
use an external antenna for RF communications.
Do insure the filler neck ring is mounted as close as possible to the top of the filler neck, and
is secured in place. The filler neck ring is an antenna which must remain within two inches of the
nozzle tag when a fuel nozzle is inserted into the filler neck.
Do install, configure and test vehicle installations individually. The basic principles of
troubleshooting prevail. If a problem appears you want the problem limited to the fewest probable
causes.
Do check the transaction data downloaded from the FMU. Downloaded transaction data may be
used for invoicing, tax purposes, and verifying credit card transactions. Proof the downloaded
transaction data to verify it remains accurate. Retail transactions should especially be monitored to
keep pricing current with fuel costs, and to ensure download quantities match pumped quantities.
Do read FMU-2500/3500 and Passive Mobile Installation and User Manuals. FMU, Passive
Mobile, and software installation and operation instructions are incorporated in other, separate
manuals.
Do insure FMUs are configured correctly. FMUs may be configured from either the FMU or the
Central Controller. They may also be reconfigured with incorrect data from either the FMU or
Central Controller. It’s a good practice to make a backup paper copy of a known good configuration
report.
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