7XR6100 Siemens
7XR6100-0CA00 Siemens COUPLING DEVICE FOR ROTOR EARTH FAULT PROTECTION 50/60HZ IN CASE 7XP20 FOR PANEL FLUSH MOUNTING
ENDRESS HAUSER FLOW METER: The measuring system operates on the principle of transit time difference. In this measurement method, Acoustic (ultrasonic) signals are transmitted between two sensors. The signals are sent in both directions, I.e. the sensor in question works as both a sound transmitter and a sound receiver. As the propagation velocity of the waves is less when the waves travel against the direction of flow than along the direction of flow, a transit time difference occurs. This transit time difference is directly proportional to the Flow velocity.