Moore Industries Programmable limit alarm trip
Options have been added to the SPA2 standalone alarm trip. The band alarm feature combines the high and low trip alarms into one alarm to warn of a process that has left its normal operating conditions. The stuck input alarm monitors the input with respect to time and trips when that input hasn’t changed by a user-selected rate over a user-selected time period. The rate-of-change alarm includes alarming on a process variable that is rising, falling or moving in either direction too fast. The fault alarm includes input saturation to identify when the input signal exceeds 110% of calibrated input range, an out-of-range alarm and broken wire alarm.