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