Problem: We use 3 K-type T/Cs to monitor the burn-off flame of our emissions flare stack. However, when the wind blows, the flame leaning away from the stack gives a false out.
Solution: Change your strategy to rely on low readings from two T/Cs to indicate no flame in a 2-out-of-3 voting scheme. This ladder rung approach creates a “flame out circuit” ONLY in the event that two of the three alarms are tripped. The SPA2 Programmable Alarm Trip’s time delay capability also helps prevent false trips.
Model Number Example
SPA2 / TPRG / 2PRG / U / -DPDT [DIN]
