Mettler Toledo SevenExcellence Manual De Usuario página 15

Connections on the DO/BOD module
The type of module is identified by a colored tag. Blue for DO/BOD.
SevenExcellence™
Mini-LTW socket for digital sensors
Digi
RCA (Cinch) socket for external temperature input (NTC22k)
ATC ext
ATC int RCA (Cinch) socket for internal temperature input (NTC22k)
DO BNC socket for the DO sensorss
Design and Function​ ​ 11