4690 SERIES | TURBIDITY SENSOR | OI/ATS410-EN REV. A
7
Dimensions in mm (in)
298.0 (11.7)
155.5 (6.12)46.5
(1.83)
Sample inlet connector
(12 [0.5] ID tube)
Sample drain connector
(12 [0.5] ID tube)
230.0 (9.0)
282.0
(11.1)
6 × Ø7 (0.3)
Mounting holes
118.0
(4.65)
Figure 3 Sensor dimensions (without the optional wiper unit)
Sample flow rate
Set a minimum flow rate of 0.5 L/min to prevent solids settling
in the pipework. Increase the flow rate if it is necessary, but do
not exceed the maximum flow rate of 1.5 L/min.
When measuring turbidity, it is important to eliminate
additional sources of light scattering, such as gas bubbles in
the sample. An optional de-bubbler (part number 7997 500) is
available to eliminate gas bubbles. Refer to Install the optional
de-bubbler on page 8.
Sample outlet
connector (6 [0.25] ID
tube)
Figure 4 4690 Series – sample outlet connector location
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