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Reference Manual
00809-0200-4705, Rev AA
Section 5: Operation and Maintenance
May 2015
Operation and Maintenance
5.1.2 Enabling the LCD continuous operation feature
The Rosemount 705 Wireless Totalizing Transmitter has the ability to keep the LCD always on for
local indication of the total volume and average flow for the attached output device. Power
module life will be reduced when operating in this mode. For example, at a 1-minute update
rates the power module life would be reduced from a 10 year life to an estimated 8 year life.
More information on the power module life impact for various update rates can be found at
http://www3.emersonprocess.com/rosemount/PowerModuleLifeCalculator/Default.aspx
Enabling continuous LCD updates
AMS
®
Wireless Configurator or Device Manager
1. Connect the Rosemount 705 to the HART
®
communicator and access the Rosemount
705 DD.
2. Double click on the Rosemount 705 icon and select Configure>Guided Setup> Configure
Device Display
Through the handheld
1. Connect the Rosemount 705 to the HART Handheld device.
2. Fast keys 2, 1, 5
a. Configure>Manual Setup> Display> Display Mode
5.2 Determining device health
In addition, system considerations must be observed to ensure that the device is still connected
to the wireless network and reporting values. On an Emerson Smart Wireless Gateway, this can
be done by referring to the parameter: PV_HEALTHY. The PV_HEALTHY has a “True” state when
the device is on the network and its updates are current, not late or stale, and the PV value is
functioning properly. A “False” state of PV_HEALTHY means that the device is either off of the
network, the data updates are not current, or that there is an issue measuring PV. In the case of a
“False” state of PV_HEALTHY, it is recommended to assume that the device is not connected to
the network and to take appropriate action.