User's Manual

Contents
Man_905UD_2.0.doc Page 5
WARNING
1. In some countries, a radio licence is not required for the 905U-D telemetry modules
provided the module is installed using the aerial and equipment configuration
described in the 905U-D Installation Guide. In other countries, refer to the relevant
Regulatory Authority. Check the Installation Guide for your country listing.
2. Where a radio licence is not required, operation is authorised by the relevant
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. Some delay in the operation of the module may occur during periods of
interference. Systems should be designed to be tolerant of these delays.
3. To avoid the risk of electrocution, the aerial, aerial cable, and all terminals of the
905U-D 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, 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 905U-D module
during these adjustments. Equipment should carry clear markings to indicate remote
or automatic operation. eg. "This equipment is remotely controlled and may start
without warning. Isolate at the switchboard before attempting adjustments."
5. The 905U-D module is not suitable for use in explosive environments without
additional protection.