APPLICATION OF ZENER DIODES IN THE INTRINSICALLY SAFE CIRCUITS AND TESTING OF THE SAFETY BARRIERS

摘要

The usefulness of zener diodes in the designing of intrisically safe circuits has .been discussed. The applications of shunt diode safety barriers for the monitoring of process variables from safe area in the area of intrinsically safe process control loop ware also discussed. Different aspects of laboratory testing for shunt safety barrier had been included in this paper.