Reference Manual
00809-0100-4731, Rev FA
April 2003
APEX
™
and APEX Sentry
™
Radar Gauge
2-4
CONSIDERATIONS
This section includes information you should consider before installing the
APEX and APEX Sentry Radar Gauges in the field. It includes information on
the following:
•
Telecommunications agency requirements
•
Unpacking the gauge
•
Mounting requirements
•
Vessel and process characteristics to consider
For information about configuring the radar gauge using a HART
Communicator, refer to Section 3: Configuration.
Telecommunications
Agency Requirements
Rosemount APEX and APEX Sentry Radar Gauges have been approved for
installation in closed metal tanks, including those that are vented to the
atmosphere. (See "Tank Requirements" below.) Tanks must be closed (or
vented) to contain radar emissions which can otherwise interfere with
aeronautical aviation. Installation shall be done by trained installers. The
radar gauges must be securely bolted to a standard tank flange in strict
compliance with the manufacturer’s instructions.
Failure to properly install the device could constitute an impermissible
modification of the device. In such an event, the responsibility is placed on the
modifying party to ensure compliance with telecommunications regulations,
and Rosemount shall have no liability whatsoever resulting from unauthorized
installation of the device.
Operation Requirements
The use of this device is on a “no-protection, no-interference” basis. That is,
the user shall accept government operations of high-powered radar in the
same frequency band which may interfere with or
damage this device. On the other hand, devices found to interfere
with Government operations will be required to be removed at the user’s
expense.
APEX and APEX Sentry Radar Gauges installed in the United Kingdom
operate between 24.15-26.05 GHz. All other APEX and APEX Sentry Radar
Gauges operate between 24.05 GHz and 26.05 GHz.
In certain countries, the radar gauge must be switched off when opening the
access door to the tank. Any usage in tanks made of non-metallic materials is
prohibited.
Underground tanks with all exposed surfaces metallized are sufficient to
contain radar emissions.
Tank Requirements
In the United States only, APEX and APEX Sentry Radar Gauges may also
be installed on enclosed or vented concrete tanks with a minimum wall
thickness of 2.5 inches.
In purchasing an APEX or APEX Sentry Radar Gauge, you agree to install the
device in accordance with these conditions.
At the time of this printing, Rosemount Inc. has received the appropriate
telecommunications approval for sale in the countries shown on page A-13.
If you have any questions about what constitutes proper installation, please
contact Rosemount Customer Central at 1-800-999-9307.
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