Problem: We’re replacing the pressure switch with a pressure transmitter on our holding tank. Can we take the 4-20mA signal and use it for our emergency shutdown system AND for trending at the DCS?
Solution: Absolutely, the SPA2 Programmable Alarm provides both emergency shutdown capability and an isolated 4-20mA retransmission of the pressure signal for trending in the DCS. The SPA2 also provides a local indication of the pressure and relay status indicators.
Model Number Example
SPA2 / HLPRG / 1PRG / U /-AO [DIN]