Function The MET148-2 module can be used to connect 8 temperature sensors (RTDs) of the same type: b Pt100, Ni100 or Ni120 type RTDs, according to parameter setting b 3-wire temperature sensors b A single module for each Sepam series 20 base unit, to be connected by one of the CCA770 (0.6 or 2 ft), CCA772 (2 m or 6.6 ft) or CCA774 (4 m or 13.1 ft) cords b 2 modules for each Sepam series 40 or series 80 base unit, to be connected by CCA770 (0.6 or 2 ft), CCA772 (2 m or 6.6 ft) or CCA774 (4 m or 13.1 ft) cords The temperature measurement (e.g. in a transformer or motor winding) is utilized by the following protection functions: b Thermal overload (to take ambient temperature into account) b Temperature monitoring.