4690 Series
Turbidity systems
NTU value Indication
Fig. 7.5 Dry Calibration Standard for Low Range Sensors
NTU value Indication
Fig. 7.6 Dry Calibration Standard for High Range Sensors
IM/4690–EN Rev. A
Zero NTU Indication
Zero NTU Indication
Zero NTU
NTU value
Indication
Indication
Fig. 7.7 Inserting Dry Standard
7 Calibration
Locating
Lug
Optical
Emitter
Optical
Receiver
23