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Safety Conformance
D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
D.E.V.I.C.E. on Request
If you are searching for a particular term or definition, please contact us and our engineers will be glad to explain it to you.
Digital meters are rated into categories based on their intended application, as set forth by IEC 61010 -1 and echoed by country and regional standards groups such as the CEN EN61010 standard:
- Category I: used where equipment is not directly connected to the mains.
- Category II: used on single phase mains final sub-circuits.
- Category III: used on permanently installed loads such as distribution panels, motors, and 3 phase appliance outlets.
- Category IV: used on locations where fault current levels can be very high, such as supply service entrances, main panels, supply meters and primary over-voltage protection equipment
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