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HOW WE MEASURE A DRUM LEVEL BY DP TRANSMITTER ? WHAT IS ITS
FORMULA ?
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Answer Posted / mohamed yousuf(instrumentation
first of all we have to measure the height of the drum.
for example if u take the height of the drum is 1meter
(1000mm).
next we have to mesure the head pressure by using this
formula
P=density*gravity*height
gravity is constant so neglect it
density of water is 1 so
P=1*1000=1000mm of water column
so we have to calirate the transmitter with -1000 to 0 mm
of water column.
low range value=-1000
high range value=0
since the water pressure is always appliied on the low
pressure side the transmitter shows -1000mm for zero level
and 0 for high level ie 1 meter
| Is This Answer Correct ? | 11 Yes | 9 No |
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