Hach-Lange FILTRAX eco - Manual (Page 8)

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General Information
2.2 General Information
2.2.1 Areas of application
The FILTRAX eco sampling system is used to filter and deliver
waste water samples from the activation basin in order to supply
downstream process measuring instruments with a sample free
from solid matter.
2.2.2 Functional description
The FILTAX eco sampling and preparation system comprises three
components: a control unit, a module carrier and a filter module.
The filter module (refer to Figure 3 , item 4 ) is immersed with a
module carrier (refer to Figure 3 , item 1 ) at the sample location
with an optional basin edge attachment. The filter module has a
filter membrane covering both sides. This membrane is used to
suck in and filter the waste water sample, and then feed it to the
control unit.
A pump within the control unit sucks the sample from the filter
module through a 5 m [16.4 ft] long heated suction tube to the
control unit, which is installed right next to the sampling location.
The sample is then pumped over 2, 10, 20 or 30 m [6.56, 32.8, 65.6
or 98.4 ft]—depending on the sample tube connected—to the
process measuring instruments.
The sample delivery is interrupted once a minute for 10 seconds in
order to minimize the amount of solid matter adhesion on the filter
membranes.
N O T I C E
Any use other than that defined in the operating instructions as correct
use will result in the loss of any rights to make claims under the warranty
and may result in injury or damage for which the manufacturer accepts
no liability.