FOUR-STAGE DIGITAL CONTROLLER WITH ALARM, CYCLICAL TIMER, SOAK FUNCTION, AND SERIAL COMMUNICATION

It has four stages that can be applied to refrigeration or heating: the first stage, together with the third stage, works in systems that require minimum ventilation; the third one also works as a cyclical timer; the fourth one works as an alarm. The second, third and fourth stages work also in the following modes: Refrigeration, heating, refrigeration (Sp1), and heating (SP1). Stage 1 can be used in soak mode and allows configuring up to five different setpoints and the time each one will remain active. MT-543e plus accepts two types of sensor: NTC thermistor (-50 to 200 °C*), PT-100** (-99 to 300 °C). It has an intelligent functions lock system, a mode to switch off the control functions, an internal audible alarm (buzzer), and a configurable digital filter and serial interface for communications with Sitrad.

Technical Specifications:

Power supply: 115-230 Vac +/-10% (50/60 Hz)

Approximate consumption: 0,5 VA

Control temperature:

*NTC: -58F a 392F (-50C a 200C)

**PT100: -328F a 572F (-200C a 300C)

Operating temperature: 32F hasta 122F (0C a 50C)

Maximum output current: OUT1, OUT2, OUT3, OUT4: 5(3)A 250 Vac  1/8HP

Operating humidity: 10 to 90% RH (without condensation)

* It measures temperatures up to 200 °C using the SB59 (sold separately).

** Sensors sold separately