Answer Posted / abhishek k sharma
1:-4ma - 20ma are used to ged know about the live zero
positon.it means that if we use 0ma then we cannot get
excect error as postioner do not gos negative values.
2:- also we have less chances of noise in 4ma to 20ma range
which help us to carry out calibration.
3:- it do not produces spack if we joints its (+)/(-) so
can be used in hazard conditions.
4:-it is idealy accepted for calibration of instruments by
all.
| Is This Answer Correct ? | 6 Yes | 4 No |
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