Emerson Rosemount 648, Reference Manual

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WARNING
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause
undesired operation.
This device must be installed to ensure a minimum antenna separation distance of 8-in.
(20 cm) from all persons.
The power module may be replaced in a hazardous area. The power module has surface
resistivity greater than one gigaohm and must be properly installed in the wireless device
enclosure. Care must be taken during transportation to and from the point of installation
to prevent electrostatic charge build-up.
Physical access
Unauthorized personnel may potentially cause significant damage to and/or
misconfiguration of end users’ equipment. This could be intentional or unintentional and
needs to be protected against.
Physical security is an important part of any security program and fundamental to
protecting your system. Restrict physical access by unauthorized personnel to protect end
users’ assets. This is true for all systems used within the facility.
3.3 Wireless considerations
3.3.1 Power up sequence
The Rosemount 648 Wireless and all other wireless devices should be installed only after
the Wireless Gateway (“Gateway”) has been installed and is functioning properly. Wireless
devices should also be powered up in order of proximity from the Gateway, beginning with
the closest. This will result in a simpler and faster network installation. Enable active
advertising on the Gateway to ensure new devices join the network faster. For more
information, see the Wireless Gateway
Reference Manual .
3.3.2 Antenna position
The antenna should be positioned vertically, either straight up or straight down, and it
should be approximately 3 ft. (1 m) from any large structure, building, or conductive
surface to allow for clear communication to other devices.
Installation Reference Manual
May 2020 00809-0200-4648
34 Rosemount 648 Wireless