The DITEL Syros SW49 is an ultra-compact universal PID controller that combines a full-size 48 × 96 mm front panel with an installation depth of only 58 mm — roughly 30% shallower than previous-generation controllers, saving valuable cabinet space. The white LED-backlit LCD provides 18.1 mm character height for the process value with an 11-segment alphanumeric display for parameter readout.

What control modes does the SW49 offer?

Seven control algorithms are available, selectable per application. ON/OFF control for simple thermostatic switching. Standard PID with configurable proportional cycle from 1 to 150 seconds. Fuzzy PID adds adaptive logic to suppress overshoot during setpoint changes and load disturbances. Self-tuning automatically calculates PID constants from the process response. PID2 provides a secondary PID parameter set for dual-setpoint applications. 2-Degrees-of-Freedom PID independently tunes setpoint tracking and disturbance rejection responses. Motorised valve control drives actuators via dual SPST relay outputs with optional position feedback from a 100 Ω – 2.5 kΩ potentiometer.

What advanced functions support complex thermal processes?

A built-in 64-step ramp/soak profile generator handles multi-stage thermal cycles — annealing, curing, sterilisation — without an external PLC. Eight PID parameter pallets and eight setpoint pallets can be selected via digital inputs or Modbus, enabling zone PID where each temperature band uses its own tuned constants. An optional CT input monitors single-phase heater current from 1 to 100 A for burnout detection. The energy monitoring function accumulates watt-hour consumption for energy management and predictive maintenance scheduling via the operation-days alarm.