3.4Installation Requirements
Power supply requirements:
Mains input:
110 - 240 VAC @ 50/60 Hz
Low voltage input (MARS-1-2-4-6):
12 VDC @ 1.5 A
MARS Readers require special installation and tuning of external antenna/s.
Refer to the ReaderManager Guide (40-01-006-DOC) for the antenna
matching, tuning and testing instructions using the
Reader Setup
Wizard
tool.
The MARS model number corresponds with the maximum number of
external antennas that can be connected to the MARS Reader.
MARS’ external antennas are suitable for applications where one or many
reading points are required. They are designed to be embedded into desk
tops or shelves.
Once antennas are installed in the position they
are to be used, it is essential that they are fixed in
place and tuned. Tuning is done only once at
installation. All antennas (except the small round
antenna 30 mm radius) have an adjustable
capacitor that allows for tuning.
Materials
The affect of materials and antenna position on antenna operation may be
determined as follows:
Place an antenna on a Styrofoam block and tune
for maximum voltage at the antenna center using
an Antenna Tuning Probe, digital voltmeter and a
trimming tool. Then place the antenna on/into the
installation position, retune and measure the
maximum voltage again. Compare the voltage
values.
A difference of 10% or less is acceptable. If the
voltage reduces more than 10%, this indicates the
material is adversely affecting the antenna. The
user should determine if the reduction in
operation is acceptable by measuring read range
and stacking operation. If the reduction is not
acceptable the antenna may be relocated.
Alternatively use of a plastic spacer of 5 mm
between the mounting material and the antenna is
recommended where the mounting material is
adversely affecting the antenna.
Reader antenna performance may be affected by conductive and metallic
materials in the immediate vicinity of the antenna.
Metal, metallic or metallized objects placed next to the Reader antenna may
change the characteristics of the antenna affecting the tuning operation and
reducing the read range.
It’s recommended that the antenna not to be placed closer than 35 cm to
any metallic object that is of a similar or larger size to the antenna.
Small metallic objects such as jewelry or coins put on the antenna will have
almost no affect on the antenna performance.
MARS-1-2-4-6 USER MANUAL
64-70-017-DOC ver.1
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