YSI VisoTurb 700 IQ - Manual (Page 18)

Commissioning VisoTurb
®
700 IQ (SW)
3 - 6 ba76039e01 01/2012
3.3.2 Measuring in an open channel (range > 100 FNU)
Example:
Outlet of a waste water
treatment plant (open
channel, wall material:
concrete)
In an open channel, the sensor can be immersed in the sample using
a wall mounting assembly, e.g. EH/W 170 wall mounting assembly,
(please note the minimum immersion depth).
 Protect the measuring location and the environment against direct
sunlight (sun shield or similar)
 Mount the sensor rigidly in the channel. At the same time, tilt the
sensor approx. 20 to 45 ° against the direction of the flow.
 Install the sensor so that the marking on the sensor points towards
the outlet of the channel.
Fig. 3-4 Turbidity sensor in the open channel with EH/W 170 fixture assembly for
direct wall mounting.
Note
Interferences at the measuring location (see section 3.2.1) may require
special adaptations of the installation. For exceptions to the direction of
flow, see section 3.2.2 F
LOW DIRECTION .
min. 10 cm
min. 10 cm
Ground
Marking
in this
direction
Direction of flo
w
min. 10 cm
Immersion depth min. 7 cm
45 °