Alarms
Up to four electromechanical alarm relays are available to activate external equipment
when preset alarm setpoints are reached. Each of the four alarms can be set to monitor
two independent setpoints. Each alarm setpoint can be either high or low alarm. The
alarm type can be selected to be either of the inputs, the Process Variable, Deviation,
Output, Shed from communications, PV rate of change, or to alarm on manual mode
activation or a Current Output Open failure. It can also be used as an On or Off event at
the beginning or end of a Ramp/Soak segment. An individual alarm hysteresis setting is
provided for each relay and these are configurable from 0 to 100% of range.
Alarms can be configured as latching or non-latching. continued
Alarm blocking is also available which allows start-up without alarm energized

The UDC3500 is a microprocessor-based stand-alone controller.
It combines a high degree of functionality and operating simplicity in a 1/4 DIN size controller.
This instrument is an ideal controller for regulating temperature and other process variables in numerous heating and cooling applications,
as well as in metal working, food,pharmaceuticals, semiconductor, testing and environmental work.
The UDC3500 monitors and controls temperatures and other variables in applications
such as environmental chambers, plastic processing machines, furnaces and ovens, and packaging machinery.
until after it first reaches the operating region.
PV rate of change alarm.
Loop break alarm.
Timer output reset.
Diagnostic Alarm
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