What is Galvanic Isolation?
Galvanic isolation separates two circuits so no current can flow directly between them, while the signal passes by transformer, optical or capacitive coupling.
Galvanic Isolation Explained
Isolation breaks ground loops, protects systems from high voltages and lets signals cross between different earth potentials.
Signal isolators, isolated I/O cards and IS isolators all provide it; the isolation voltage rating shows how much difference they withstand.
Calculators for Galvanic Isolation
Frequently Asked Questions
What is Galvanic Isolation?
Galvanic isolation separates two circuits so no current can flow directly between them, while the signal passes by transformer, optical or capacitive coupling.
Does every 4 to 20 mA input need isolation?
Not always, but channel to channel isolation avoids problems with four wire transmitters and long cables.
What is a 3 way isolator?
One that isolates input, output and power supply from each other.
Learn more on the blog
What is galvanic isolation
A practical guide on instrumentationblog.in with more detail on galvanic isolation and how it is applied on real plants.
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