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94
Reference Manual
00809-0100-4530, Rev DD
May 2016
5.4.5
Analog output (HART)
The output source (Primary Value), range values, and alarm mode are specified for the
analog output.
Figure 5-8. Example of Range Value Settings
Output source/primary variable
Specify the source to control the analog output. Typically, the Primary Value is configured
to be the product level.
Upper/lower range value
Enter the range values that correspond to the analog output values 4 and 20 mA. If a
measured value goes beyond the measurement range, the transmitter enters saturation
mode (limit alarm is disabled) or alarm mode depending on the current configuration.
Note
Measurements may not be possible in the Blind Zones, and measurements close to the Blind
Zones will have reduced accuracy. Therefore, the 4-20 mA points should be configured
outside these zones.
Upper Range Value (URV) = 100%
Lower Range Value (LRV) = 0%
Lower Reference Point (Level=0)
Reduced accuracy
Reduced accuracy
Range 0
-10
0
%
Upper Reference Point
Upper Blind Zone
Lower Blind Zone
20 mA
4 mA