1)how can calibrate temperature transmitter?
2)how can calibrate flow transmitter?
3)how can calibrate level transmitter?
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Answer Posted / tontoy
1 prepare the instruments needed in calibrating temp.
transmetter.
2 unsrew the resistance input of the transmetter, and
connect it to a resistance box.
3. unsrew the output side of the transmetter, connect the
ammeter serries with the supply of 24 volts dc.
4. supply it with the resistance of 0% or 100 Ohm until
100%. and record it to the data in the as found.
5. the next is the zeroing. supply the input with 100ohm
resistance. adjust the adjustment of the zero side by
twisting slowly to the left to have an output of 4mA.
6. span- supply the transmitter with 100% depends on the
value of high temperature of the RTD value. and adjust it
to 20mA.
7 repeat it up to 4-5 times.
then supply is again with 100Ohn, mast have an output of
4mA until 100%.
record it to the data as asleft.
for 0% must have an output of 4mA, 25% 8mA, 50% 12mA, 75%
16Ma, and 20mA for 100%.
| Is This Answer Correct ? | 101 Yes | 17 No |
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