Evoqua WALLACE & TIERNAN DEPOLOX 5 E 700 P Series, Инструкция по эксплуатации

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WT.050.810.040.DE.IM.0519
Installation
DEPOLOX
®
5 E flow cell
4.
• Select the sample water extraction point that guarantees a proper
mixture of disinfectant and a bubble-free sample water flow.
• To prevent long loop dead times, keep the sample water take-off line
as short as possible.
• Do not install water carrying lines made of copper. These would dis -
tort the measurements.
• If 700 P electronics module or 700 M electronics module and
DEPOLOX
®
5 E flow cell are installed in different locations, you must
use CAN bus extension cable (optional). This must not be longer
than 1000 m.
4.3.2 Installation location for drinking water, industrial water
and waste water
For problem-free mixing of the chlorine solution, the distance between
chlorine addition and sample water take-off must be at least ten times the
pipe diameter:
Example:
Pipe DN300
=> 300 mm × 10 = 3000 mm
=> minimum distance = 3 m
The time between chlorine addition and excess chlorine measurement is
the soak time. It consists of the travel time between chlorine addition
point and sample water take-off and the travel time between sample
water take-off and measurement (sample water line to DEPOLOX
®
5 E
flow cell). Keep the sample water line to the DEPOLOX
®
5 E flow cell as
short as possible.
For longer required soak times, for example 5 to 15 minutes, a delay tank
can be installed into the sample water line immediately before the
DEPOLOX
®
5 E flow cell. Note that the longer soak time prevents chlo -
rine addition control based purely on excess chlorine. Instead, combined
flow and excess chlorine dependent control must be used. This also
applies to the use of chlorine, chlorine dioxide and ozone as disinfectant.
4.3.3 Installation site for pool water
The sample water take-off point must be installed in the pool return line
according to standards (see DIN 19643, DIN = German Industrial Norm).
Make sure that the sample water take-off point is upstream of the floccu -
lant station.