6
Basic Configuration
Once the magnetic flowmeter is installed and power has been supplied, the
transmitter must be configured through the basic setup. These parameters
can be configured through either an LOI or a HART communication device.
Configuration settings are saved in nonvolatile memory within the
transmitter. Descriptions of more advanced functions are included in the
product reference manual.
6.1
Basic Setup
Tag
Tag is the quickest and shortest way of identifying and distinguishing
between transmitters. Transmitters can be tagged according to the
requirements of your application. The tag may be up to eight characters long
as standard, or 32 characters long when ordered with HART 7.
Flow units (PV)
The flow units variable specifies the format in which the flow rate will be
displayed. Units should be selected to meet your particular metering needs. .
Line size
The line size (sensor size) must be set to match the actual sensor connected
to the transmitter. The size must be specified in inches.
Upper range value (URV)
The URV sets the 20 mA point for the analog output. This value is typically set
to full-scale flow. The units that appear will be the same as those selected
under the flow units parameter. The URV may be set between –39.3 ft/s to
39.3 ft/s (–12 m/s to 12m/s). There must be at least 1 ft/s (0.3 m/s) span
between the URV and LRV.
Lower range value (LRV)
The LRV sets the 4 mA point for the analog output. This value is typically set
to zero flow. The units that appear will be the same as those selected under
the flow units parameter. The LRV may be set between –39.3 ft/s to 39.3 ft/s
(–12 m/s to 12m/s). There must be at least 1 ft/s (0.3 m/s) span between the
URV and LRV.
Quick Start Guide
November 2017
30
Rosemount 8712EM Transmitter with HART Protocol
