Wireless Considerations - Emerson Rosemount 248 Quick Start Manual

Quick Start Guide

1.0 Wireless considerations

1.1 Power up sequence
The power module should not be installed on any wireless device until the
Gateway is installed and 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 Gateway
1.2 Antenna position
The internal antenna is designed for multiple mounting orientations. The
transmitter should be mounted according to best practices for your temperature
measurement application. The transmitter should be approximately 3 ft. (1 m)
from any large structure or building to allow clear communication to other
devices.
1.3 Field Communicator connections
The power module must be installed in the device for the Field Communicator to
interface with the Rosemount 248 Wireless. The Field Communicator
connections are located on the green power module. To communicate to the
transmitter, begin by removing the power module cover. This will expose the
HART communication terminals located on the green power module. Next,
connect the Field Communicator leads to the COMM port connections on the
green power module.
This transmitter uses the green power module; order model number 701PGNKF.
The power module is keyed and can only be inserted in one orientation. Field
communication with this device requires a HART-based Field Communicator.
Refer to Figure 1
Rosemount 248 Wireless.
Figure 1. Field Communicator Connection
4
for instructions on connecting the Field Communicator to the
Reference Manual.
April 2019