1.1 - GENERAL DESCRIPTION
The model TLZ 12 is a digital controller with microprocessor that is typically used in cooling applications that have temperature control with ON/OFF regulation and defrosting control with set time by means of stopping compressor.
The instrument has up to 2 relay outputs, one input for PTC or NTC temperature probes and a digital input, that can be configured.
The 2 outputs can be used for controlling the compressor or the temperature control device (OUT) and an alarm (AL).
The instrument is equipped with 4 programme keys, a 4-digit dis- play and 3 LED signals, in addition to an internal buzzer that is the sound system for alarms.
Other important characteristics of the instrument are: programme parameters protection using personalised password, switching on and off (stand-by) of the instrument using the “U” front key, configu- ration of parameters via the KEY 01 device and the possibility of power supply in the range 100 ... 240 VAC.