An Industrial Application Based N2 Gas Digital Pressure Indicator

Nitrogen comprising 75% of the air is an essential gas if considered for an industrial application. Nitrogen is used in "PURGING" process in steel manufacturing industries. PURGING process is totally dependent on gas pressure applied and maintaining the pressure is an essential parameter. In current operating stages analog system is employed due which there are complication in measuring the pressure. In this paper we are presenting experiment based electronic pressure and level indicator, interlocking incorporated in a device. The device is capable of sensing pressure (0 to 176 PSI) and not only sensing but displaying it providing alarm and interlocking in the case of any fault occurs in both the cases (filling and emptying). Experiment of pressure measurement and the performance of the device with different gases has been investigated and laid down in this paper. From different investigation of the device is been seen that device performed extremely well (as compared with the analog measuring device). Hence it is concluded that device gives a best alternative to the current analog system which is cumbersome and inaccurate.