Emerson Rosemount 644 Reference Manual page 52

Configuration
March 2021
2.13.1 Set the transmitter to burst mode
To set the transmitter to burst mode, follow the steps below with the Fast Key sequence.
Set the transmitter to burst mode using a Field
Communicator
From the HOME screen, enter the Fast Key sequence.
Device Dashboard Fast Keys
Set the transmitter to burst mode using AMS Device
Manager
Procedure
1. Right click on the device and select Configure.
2. In the left navigation window select Manual Setup.
3. On the HART tab find the Burst Mode Configuration group box and fill in the
4. Select Apply when complete.
2.13.2 Set process variable output order
To set the process variable output order, follow the steps in one of the methods outlined
in Mapping the HART
Note
Take careful note of the process variable output order. The HART
configured to read the variables in the same order.
Special considerations
To initiate operation between a transmitter with dual-sensor option and the HART
Loop, consider the configuration of both the differential, average and first good
temperatures, sensor drift alert, and Hot Backup features (if applicable).
Differential temperature measurement
To enable the differential temperature measurement feature of a dual-sensor operating in
conjunction with the HART
channel on the HART Tri-Loop to include zero. For example, if the secondary variable is to
report the differential temperature, configure the transmitter accordingly (see
the HART
range end point is negative and the other is positive.
Hot Backup
To enable the Hot Backup feature of a transmitter with dual-sensor option operating in
conjunction with the HART Tri-Loop, ensure that the output units of the sensors are the
52
necessary content.
variables.
®
Tri-Loop, adjust the range end points of the corresponding
variables) and adjust the corresponding channel of the HART Tri-Loop so one
Reference Manual
00809-0200-4728
HART 5 HART 7
2, 2, 8, 4 2, 2, 8, 5
®
Tri-Loop must be
Mapping
Emerson.com/Rosemount
®
Tri-