Каталог Weidmuller: Electronics - Analogue Signal Conditioning

Technical appendix/Glossary
Glossary
Creepage and clearance distances
The safety gaps between two current-carrying wires. The creepage distance is
the shortest path along an insulating surface between two live components. The
clearance distance is the shortest path in the air between two points of reference.
Clearance distance
Creepage distance
Housing contours
Live, current-carrying parts
D
D/A converter
DC
Derating
D/A converters convert standardised digital signals (for example, with an 8-bit
structure) into analogue current and voltage signals.
It may be necessary to convert digital signals into analogue signals when you need
the analogue signal from the surroundings to work with the typical digital processing
requirements of process monitoring.
Direct current
The continuous current level reduction in relation to an ambient temperature
increase, represented as a derating curve (a load reduction curve).
Derating curve
Current strength
Over the limit
Operating range
Temperature
W
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