The ST551 refrigeration controller has a monochrome graphic display with 128x64 pixels, preferably in blue. Background lighting and contrast are adjustable, the contrast is temperature compensated. The controller is supplied with 230V AC and has an integrated data logger. The display can also be used to create a graphic representation of recorded temperature curves.
The device has 3 sensor inputs, 4 switching outputs with up to 1400W motor power, a digital switching input and a battery-buffered real-time clock for programming defrost times.
The networking takes place via the ST bus interface.
