The power unitis provided with two NTC (PTC can be set by parameter) thermostatic probe inputs and up to four relay outputs for compressor, defrost, alarm and evaporator fans management.
The defrost cycle can be stopped at aset time or, thanks to the sensor on the evaporator, when the cycle completion temperature has been reached.
The master unit, provided with a programmable digital input, allows viewing the value that the probe read on the three digit and a minus sign display; the reading with thedecimal point can be set by parameter.
The Buzzer is optional.
All models are provided with TTL connection to enable the “Copy Card” fast parameters transfer option and for Televis connection.
The IS 972 LX - IS 974 LX controllers are devices suitable for applications on normal or low temperature refrigerating units with fans; they include a master unit and a power slave unit EWEM 233 - EWEM 243, connected to each other by a multipolar cable with quick coupling.
The master unit is available in the 32x74 split format, 30 mm depth
The power slave unit in the 4 module DIN-rail format