In brief

The One® series of electronic thermostats incorporates intelligent self-diagnostics capable of signaling any faults. Imagine a thermostat with high repeatability (0.1%) and a fully adjustable trip differential. The digital display is swiveling.

The basic version makes it possible to replace an electromechanical instrument already connected to a PLC or DCS, without changing the wiring, i.e., employing the same two wires, with significant time savings, i.e., without the need to employ an auxiliary power supply.
This is possible because the instrument is specifically designed to take advantage of the typical residual currents of PLCs and DCSs, (about 750 µA) for its own functionality.
Ideal for temperature control in a wide variety of situations because of the temperature ranges available, One can be a local thermostat and indicator as well as a remote self-diagnostic source.

Replacement of old electromechanical instruments already connected to DCS or PLC without changes in wiring (thus without additional power supplies).

• Operation also through interposed relay.
• Guaranteed functionality even with less than 8 V.
• Large display for programming and constant display of line pressure.
• Tripping, differential, contact status adjustable.
• Active self-diagnosis with display messages.
• Self-diagnosis fail-safe threshold, removable to PLC/DCS.