Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?
5 8785Post New Air Liquide Instrumentation Interview Questions
- Air Liquide Electrical Engineering Interview Questions (1) Air Liquide Instrumentation Interview Questions (2)
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