Temperature Alarm

THE THERMOWELL 

Most suppliers of temperature equipment are content to sell you a box and walk away. We take responsibility for the success of the system which includes secure positioning of the thermocouple.  The only way to do this is with a thermowell fastened to the tank. This is so important that we include it with every temperature product.  This includes a 12″ thermowell and mounting plate. To install the thermocouple all you need to do is insert it through the PVDF cord grip and tighten by hand.

ALARMS

When an alarm sounds, the it can be silenced using the front push button. The default behavior is that the buzzer will sound again in 30 minutes.  For tanks with very long heat-up times where you don’t want to silence every 30 minutes there are two options. The first alarm exemption will ignore the fact that the tank is cold. (and therefore out of range) When the tank temperature climbs into range, then the unit is “armed” and will produce an alarm if the temperature ever strays out of the set temperature limits. The other way to handle this is to set the alarm behavior from the circuit board in the enclosure so that pressing the front push button once will clear the alarm until the alarm condition is cleared. (until the temperature climbs into range)

THE ALARM PROBLEM 

Most temperature controllers provide an alarm output on the temperature module, but almost nobody connects them.  This is doubtless because its you do some wiring to connect a buzzer and light, but also find a way to shut if off!  Its simply unacceptable to expect a process operator to dive into submenus to find the way to silence the buzzer. And, it must reset automatically when the alarm condition is cleared. Toggle switches are simply unacceptable. Furthermore, all this has to be in a waterproof enclosure and corrosion proof enclosure. No wonder most shops give up and an alarm is never connected to the output.  Unless you have an electronics person on staff it just doesn’t happen. This is where Gizmo Engineering can help you. Over many years we have found the path to getting all of these details exactly right.