A signal peaks or falls and you need to know; it is the ultimate in ensuring a safe process.
That is why a limit alarm trip can trigger the response needed to maintain normal, and safe, operations. A limit alarm trip monitors a process signal (such as one representing temperature, pressure, level or flow) and compares it against a preset limit. If the process signal moves to an undesirable high or low condition, the alarm activates a relay output to warn of trouble, provide on/off control or institute an emergency shutdown.
While limit alarm trips are a sure way to activate a warning light, siren or bell when a process problem occurs, but they can do much more. In fact, today’s highly flexible and versatile alarm trips work in a wide range of applications.
For more, click here for this white paper.