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CHAPTER 3: CONFIGURATION
How Many Percent or How Many Unit (Max Scale):
The field name is changed accordingly to the selected type of scale (absolute value or percentage). When the type of
scale is set to Absolute, this field should be set to the maximum absolute value of a measured entity which is input to
the 4-20mAmp Converter. When the type of scale is set to Percent, this field should be set to 100 percent.
How Many Percent or How Many Unit (Base Scale):
The field name is changed accordingly to the selected type of scale (absolute value or percentage). When the type of
scale is set to Absolute, this field should be set to the minimum absolute value of a measured entity which is input to
the 4-20mAmp Converter. When the type of scale is set to Percent, this field should be set to 0 percent.
Example (assuming the 4-20 mAmp Converter is input from a pressure sensor which output 4-20 mAmp for pressure
in range of 50-300 pounds): Enter “Display Unit” as “Lbs” for pound. Select “Type of Scale” as “Absolute.” Other fields
should be configured as indicated in Table 2-1:
TABLE 2-1 SETTINGS AND VALUES
SETTING FIELDS VALUE
Max Scale of Sensor in mAmp .
Base Scale of Sensor in mAmp 4.0
How Many Lbs at 20.0 mAmp 300.0
How Many Lbs at 4.0 mAmp 50.0
An illustration of a typical 4-20mAmp setting appears below:
FIGURE -: TYPICAL SETTING
TABLE 2-2 INPUT A AND PERCENT
INPUT A PERCENT
4.06 mAmp
9.9 mAmp 36
15.1 mAmp 69
19.8 mAmp 99