What is the acceptable variance between the remote gauge and the cylinder gauge in psi?

The acceptable variance between the remote gauge and the cylinder gauge is established to ensure safety and accuracy in monitoring pressure systems. A variance of 100 psi is considered acceptable because it allows for potential fluctuations in pressure readings due to various factors such as temperature changes, gauge calibration, and system dynamics. This standard helps to ensure that both gauges are aligned within a reasonable range, indicating that they are functioning correctly and providing reliable data for operational decision-making. Variances that exceed this threshold could raise safety concerns, indicating that the system may not be operating as intended or that there is a potential for failure. Therefore, the choice of 100 psi reflects an industry standard aimed at maintaining safety and operational integrity.