temperature control unit
The CTT-4 model engineered by Contrel, is a temperature monitoring relay that features a programmable thermal control unit to an extent of 4 inputs from Rtd Pt100 sensors. On each input a built-in alarm, trip and ventilation entrance is equipped. Moreover, it has an increased range power supply of 20 ÷ 250 Vcc/cc or 110 - 230 - 400 Vca.
This apparatus highlights the specifications and computations on 2 ample digital displays. In addition, an analog output of 0/4 ÷ 20 mA calculates the conversion.