ABB 4690 - Page 6

4690 Series
Turbidity systems 2 Turbidity Systems
4 IM/4690–EN Rev. A
Fig. 2.2 Turbidity Sensors – Main Components
Flow Chamber
Optical
Emitter
Wiper Unit
Optical
Receiver
Drain
Valve
Inlet/Isolating
Valve
With Optional wiper unit
Optical
Emitter
Optical
Receiver
Drain
Valve
Inlet/Isolating
Valve
Flow Chamber
Wiper Plug
Without Optional wiper unit
Sample Outlet
Sample Outlet