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Figure 3-15 Input Type Drop-down Menu
o Voltage (AC):
This selection indicates that the analog input is monitoring an AC voltage signal.
o Current (AC-Internal Shunt):
This selection indicates that the analog input is monitoring an AC current signal measured
by an internal current shunt.
o Current (AC-External Shunt):
This selection indicates that the analog input is monitoring an AC current signal by
measuring the voltage output of an external current shunt or an auxiliary current
transformer device.
o Voltage (DC):
This selection indicates that the analog input is monitoring a DC voltage signal.
o Current (DC-Internal Shunt):
This selection indicates that the analog input is monitoring a DC current signal measured
by an internal current shunt.
o Current (DC-External Shunt):
This selection indicates that the analog input is monitoring a DC current signal by
measuring the voltage output of a current shunt.
• Primary
This column is used to enter the number of turns on the primary of the measurement transformer.
• Secondary
This column is used to enter the number of turns on the secondary of the measurement
transformer.
• Full Scale
This column displays the worst-case input level expected to be applied to the analog input
terminals.
Note: Care should be taken when selecting full scale levels. Setting this value too low will result
in clipping when the input signal exceeds this level; conversely, setting this value too high
will result in reduced accuracy of low level readings.
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