Rosemount 8712C - Miscellaneous Functions; Coil Current (Model 8712 U Only); Transmitter Gain (Model 8712 U Only); Flowtube Gain (Model 8712 U Only)

Model 8712C/U/H Magnetic Flowmeter Transmitters
4-16
MISCELLANEOUS
FUNCTIONS
The miscellaneous functions listed below are used in flowtube
calibration and other procedures. The transmitter gain, flowtube gain,
and coil current functions can be accessed only with the Model 8712U
transmitter.
Coil Current
(Model 8712U Only)
Based on the flowtube resistance and inductance, the coil current is
automatically set when a universal auto trim is performed.
Transmitter Gain
(Model 8712U Only)
The transmitter gain settings A, B, and C correspond to 100 percent, 50
percent, and 25 percent of the flow input signal respectively. A coarse
transmitter output adjustment, the transmitter gain is self-calculated
by the Model 8712U during the universal auto trim procedure.
Flowtube Gain
(Model 8712U Only)
The flowtube gain setting represents a fine adjustment for setting the
output of the Model 8712U Transmitter. As a percentage of flow, the
flowtube gain is self-calculated by the Model 8712U during the
universal auto trim routine.
Message
The message variable provides an even longer user-defined variable for
identification and other purposes. It provides 32 characters of
information and is stored with the other configuration data.
Date
Date is a user-defined variable that provides a place to save the date of
the last revision of configuration information.
Flowtube Tag
Flowtube 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.
Flowtube Serial Number
The flowtube serial number is stored in the transmitter configuration
for future reference. The number provides easy identification if the
flowtube needs servicing or for other purposes.
HART Fast Keys 1, 4, 1, 7
LOI Key Aux. Function
HART Fast Keys 1, 4, 1, 8
LOI Key Aux. Function
HART Fast Keys 1, 4, 1, 9
LOI Key Aux. Function
HART Fast Keys 1, 4, 5, 4
LOI Key XMTR INFO
HART Fast Keys 1, 4, 5, 5
LOI Key XMTR INFO
HART Fast Keys 1, 4, 5, 8
LOI Key XMTR INFO
HART Fast Keys 1, 4, 5, 7
LOI Key XMTR INFO