Answer / joe mccabe

a) calc the hyteresis and reset the 4-20 to it, accepting
the deviation in the middle

b) test the amount of deviation @ 4ma,8ma,12ma, 16ma,&20ma
and see if slope is repeatable, write program correction
for slope

c) Your instrument has a hardware issue, do the right thing
and replace it.

Answer / amit

Just Simply Calibrate the transmitter With Different ranges
check for

0% should get 4mA
25% should get 8mA
50% should get 12mA
75% should get 16mA
100% should get 20mA
take reading from Increasing and decreasing Reading. And
According to which plz Set ZERO or SPAN.

Pl send the model question paper of mahagenco account officer post

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