•Operation is not significantly affected by small isolated metal objects such as screws or other
hardware.
•Large conductive areas such as metal plates should be kept at least half the Antenna’s diameter,
about 4 inches, from the Antenna.
•The impact on Reader operation is primarily a function of the area enclosed by the conductor.
That is, a closed loop of wire of a given area can have nearly the same impact as a solid sheet
of metal of the same area.
Standard anti-static precautions should be observed when handling 1880 Combo Readers outside of
enclosures.
2.11 EXTERNAL INTERFERENCE
Since the Model 1880 transmits and receives electromagnetic fields, it is susceptible to interference
from external sources of intentional and unintentional electromagnetic radiation. At its frequency of
operation, the effect of external sources falls off rapidly with distance. The operation of the unit may
be degraded by lower level sources of interference within 20 feet or so of the Combo Reader and
higher level sources up to 100 feet away. The following items should be given consideration when
operating the Combo Reader:
•Unshielded CRT's should be kept at least 20 feet from the Combo Reader to reduce the effect
of the deflection yoke magnetic field. Orientation of the screen to the Combo Reader can have
an affect on the exact distance of the interference. Try turning the screen, or changing its Hz
settings at which it operates.
•Signal lines from the Combo Reader should always be run through shielded twisted pair cable.
•Power input lines should be well filtered and free of switching spikes caused by thyristors,
SCR`s, etc. which create interference across a broad spectrum of frequencies.
2.12 WARRANTY
RFID, Inc. products are warranted against defects in materials and workmanship for one (1) year from
date of shipment. RFID, Inc. shall, at its option, either repair or replace products that prove to be
defective and are returned with freight prepaid to RFID, Inc.’s plant within the warranty period. The
foregoing warranty shall not apply to defects resulting from abuse, misuse, accident, alteration, neglect
or unauthorized repair or installation. RFID, Inc. shall have the right of final determination as to the
existence and cause of the defect.
THE WARRANTY SET FORTH ABOVE IS EXCLUSIVE AND NO OTHER WARRANTY,
WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED. RFID, Inc. SPECIFICALLY
DISCLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.
The remedies provided herein are Buyer's sole and exclusive remedies. In no event shall RFID, Inc.
be liable for direct, indirect, special, incidental or consequential damages, (including loss of profits)
whether based on contract, tort, or any other legal theory.
