Question { 8867 }

i want to Measure the Difference pressure of Packed distillation Column of height 3 mtr. h.p. side connected to
bottom & L.P. side connected to the top , so tell me what
will be THE URV & LRV of that D.P. transmitter?

Answer

If you want to mesure a differential pressure of Packed
distillation Column and currect out put signal then
instrument mesuring rang should be higher than required
measuring renge.

URV >3000 mmm WC ( Say 4000 mm WC)
LRV= 0 mm WC

calibrate it 0 mm WC to 4000 mm WC .

Question { Bhel, 15920 }

what pressure transmitter?

Answer

Pressure transmitter is a transducer which convert pressure
energy into electrical signal 4-20mAmp, 0-20mAmp,0-10Vdc or
pneumatic signal 3 to 15 psi.These are the standerd signals
which are used by controller or used for display.