VEGA MINITRAC 31 4 … 20 mA_HART - four-wire - Manual (Page 58)

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6 Set up with the display and adjustment module
MINITRAC 31 • 4 … 20 mA/HART - four-wire
40447-EN-131119
In this menu item you can activate the function of the current output.
When the output is activated, the instrument remains in its function as
a Slave, but the 4 … 20 mA output of the MINITRAC 31 can be also
used als single instrument.
The instrument has again the complete functionality when the output
is active again.
With this menu item you safeguard the sensor parameters against
unauthorized or unintentional modifications.
This menu item is described in the operating instructions manual
"Display and adjustment module".
6.7 Parameter adjustment/Real value correction
To correct a level measurement, a real value correction can be carried
out when a certain level is reached. This is for example necessary in
case of recurring buildup on the vessel wall.
The level measurement can thus be reset to the correct real value.
The level measuring instrument acts as Master and the MINITRAC 31
operates as Slave.
First of all, define the function of the Slave instrument before you
define the Master instrument. The Master instrument can thus imme-
diately recognize the connected Slave.
For this purpose, the Slave instrument must be defined as "Real value
correction". Select under the menu item "Setup/Application" the func-
tion "Real value correction".
You can set the address (MGC) on the Slave instrument at will. Only
the address "0 - 0" is reserved for the Master instrument.
The Master instrument must have the function "Level". For this
purpose, select under the menu item "Setup/Application" the function
"Level".
Set the address setting (MGC) on the Master instrument to "0 - 0".
You have to enter the address of the Slave instrument in the list of
the Master instrument. This function is not possible in the display and
adjustment module. To do this you need PACTware with the respective
DTM.
Setup/Outputs
Lock setup - adjustment
Real value correction