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February 2010
Important Notice
Weidmuller, Inc. products are designed to be used in industrial environments, by experienced industrial engineering personnel with
adequate knowledge of safety design considerations.
Weidmuller, Inc. radio products are used on unprotected license-free radio bands with radio noise and
interference. The products are designed to operate in the presence of noise and interference, however
in an extreme case, radio noise and interference could cause product operation delays or operation
failure. Like all industrial electronic products, Weidmuller, Inc. products can fail in a variety of
modes due to misuse, age, or malfunction. We recommend that users and designers design systems
using design techniques intended to prevent personal injury or damage during product operation, and
provide failure tolerant systems to prevent personal injury or damage in the event of product failure.
Designers must warn users of the equipment or systems if adequate protection against failure has not
been included in the system design. Designers must include this Important Notice in operating
procedures and system manuals.
These products should not be used in non-industrial applications, or life-support systems, without
consulting Weidmuller, Inc. first.
1.
A radio license is not required in some countries, provided the module is installed using the
aerial and equipment configuration described in the WI-MOD-E
Installation Guide.
Check
with your local distributor for further information on regulations.
2.
Operation is authorized by the radio frequency regulatory authority in your country on a non-
protection basis. Although all care is taken in the design of these units, there is no
responsibility taken for sources of external interference. Systems should be designed to be
tolerant of these operational delays.
3.
To avoid the risk of electrocution, the aerial, aerial cable, serial cables and all terminals of the
WI-MOD-E module should be electrically protected. To provide maximum surge and
lightning protection, the module should be connected to a suitable earth and the aerial, aerial
cable, serial cables and the module should be installed as recommended in the Installation
Guide.
4.
To avoid accidents during maintenance or adjustment of remotely controlled equipment, all
equipment should be first disconnected from the WI-MOD-E module during these
adjustments. Equipment should carry clear markings to indicate remote or automatic
operation. E.g. "This equipment is remotely controlled and may start without warning. Isolate
at the switchboard before attempting adjustments."
5.
The WI-MOD-E module is not suitable for use in explosive environments without additional
protection.
