The Honeywell UDC2500 is a universal digital controller designed for precise temperature and process control in industrial applications. Housed in a 1/4 DIN panel-mount format, these controllers accept a range of sensor inputs — including multiple thermocouple types and RTDs — and provide PID control to regulate heating and cooling equipment. Configurable outputs such as relay, current (4-20mA), and DC outputs allow the unit to be matched to a wide variety of process requirements.
This series includes standard UDC2500 controllers as well as dedicated 1/4 DIN temperature limit controller variants. Many models offer expanded I/O, including auxiliary outputs, digital inputs, and Ethernet communication for integration into networked control systems. The associated auxiliary output / digital input / Ethernet board is also part of this family.
Common Applications
Ovens, furnaces, and heat treating equipment
Plastics extrusion and packaging machinery
Food processing and general manufacturing
HVAC and process automation systems
All products in this series are manufactured by Honeywell and share the DC2500 model designation, with configuration codes indicating the specific input, output, and communication options of each unit.