8.2 Limitations of Radio Communications
Ei Electronics radio communication systems are very reliable and are tested to high standards. However,
due to their low transmitting power and limited range (required by regulatory bodies) there are some
limitations to be considered:
(i) Radio equipment, such as the Ei262 CO Alarm, should be tested regularly - at least weekly. This is
to determine whether there are sources of interference preventing communication. The radio paths may
be disrupted by moving furniture or renovations, and so regular testing will help identify these and other
faults, so that they can be rectified.
(ii) Receivers may be blocked by radio signals occurring on or near their operating frequencies,
regardless of the House Coding.
The Ei262 CO Alarm has been tested to EN 300 220-1 V1.3.1 (2000-09) in accordance with the
requirements of EN 300 220V1.1.1 (2000-09). These tests are designed to provide reasonable protection
against harmful interference in residential installations. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause
interference to radio and/or television reception.
However, there is no guarantee that interference will not occur in a particular installation. If this device
does cause such interference, which can be verified by turning the Alarm on and off (disconnect the
mains and then remove the Alarm from the mounting plate to disconnect the rechargeable battery). The
user is encouraged to eliminate the interference by one or more of the following measures:
(i) Re-orientate or re-locate the unit.
(ii) Increase the distance between the Ei262 CO Alarm and the device being affected.
(iii) Connect the device being affected to a mains outlet on a circuit different from the one that supplies
the Ei262.
(iv) Consult the supplier or an experienced radio/television technician.
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