Vertu Series VPM3000 Process Meters & Temperature Transmitters
Instruction Manual
27
Scaling the 4-20 mA Analog Output
(Aout)
The 4-20 mA analog output can be scaled to provide
a 4-20 mA signal for any display range selected.
No equipment is needed to scale the analog output;
simply program the display values to the
corresponding mA output signal.
The Analog Output menu appears in the Setup menu
only on meters that are equipped with a 4-20 mA
output. This menu is enabled or disabled at the
factory via the Advanced Features menu. For more
information on the Advanced Features Menu see
page 28.
The Analog Output menu is used to program:
1. 4-20 mA output based on display values
2. Sensor break value in mA
For instructions on how to program numeric
values see Setting Numeric Values, page 19.
Isolated 4-20 mA Signal Splitters &
Converters
Acromag Inc offers DIN rail mountable signal splitters
and converters to spit the optional 4-20 mA signal into
two isolated 4-20 mA signals or into a 0-10 VDC signal.
For more information see page 16.
Program the Sensor Break Output
Value (SEbr)
The sensor break value corresponds to the output
signal generated when the meter detects a sensor
break for thermocouple and RTD inputs.
For example if there is an open thermocouple, the
meter displays the message “open” and the analog
output goes to the programmed sensor break value
(e.g. 3.00 mA).
The sensor break value can be programmed from
0.00 to 23.99.
The typical output signal range is 1.00 to 23.00 mA
(e.g. If sensor break value is programmed to 0.00, the
actual output will not be greater than 1.00 mA).
Analog Output when Display is Out
of Range
The analog output reflects the display out of range
conditions as follows:
Condition
Output
-1999
9999
open
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