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Frequently Asked Questions

Digital Panel Meter Topic: Measure DC Current of 1,000 A

 

FAQ No. FAQ00760

 

Question

How can a DC current of 1,000 A be measured with a K3NX Process Meter?


Answer

 

Use an SDV-SH1000 Shunt, read the converted DC voltage signal at the K3NX, and scale the read value for display on the K3NX.


Note: OMRON has a wide range of Shunts available, with rated currents ranging from 5 A to 1,000 A.


The Shunt is a resistor that converts the DC current to a DC voltage.

 

Current (A) versus Output Voltage (mV)

 

Circuit Diagram

Note: The input resistance of the K3NX and K3TS is 10 Ω. When connecting two K3NX or K3TS Process Meters, the sensor's permissible load resistance must be 20 Ω or higher.


Setting Examples:

 

Setting Example

 

Input Value versus Display Value

 

 

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