5. Installation
DEPOLOX® 400 M
42
EN
5.7
Installing the optional strainer
1 Release the screw joint on the sample
water inlet with ball valve (A) (threaded
connection G 1/2” A).
2 Connect strainer with pipe clamp (B).
3 Connect sample water inlet (C).
Fig. 3
Section, installation of strainer
A Screw joint on sample water inlet with ball
valve
B
Strainer with pipe clamp
C
Sample water inlet
5.8
Connecting the sample water
inlet
When connecting the sample water inlet, note
the following:
•
The sample water inlet must be chosen to
ensure that the water sample is represen-
tative with a constant, bubble-free flow
and a constant pH value (range from 6 to
8).
•
A distinction must be made between a
sample water inlet with tubing connec-
tion and a sample water inlet with rigid
pipework.
•
To prevent long loop dead times, ensure
that the lines in the sample water inlet
are as short as possible and do not have a
large line cross-section. Long measuring
dead times mean poorer control quality!
•
The pressure in the sample water inlet
must always be within a range of min. 4 to
max. 45 psig (min. 0.25 to max. 3.0 bar).
The pressure in the sample water inlet
must always be 4 psig (0.25 bar) higher
than in the sample water outlet.
•
If the inlet pressure is below 4 psig (0.25
bar), a booster pump must be used.
•
If the inlet pressure exceeds 45 psig (3.0
bar), an optional pressure reducing valve
must be used.
•
To protect the flow cell against contami-
nation, an optional strainer with a mesh
width of 0.02“ (0.5 mm) should be provi-
ded on the sample water inlet (chapter
5.7).
Fig. 4
Section, DEPOLOX® 5 C flow cell, pres-
surized version
A Sample water inlet with ball valve
B
Flow cell drain valve (drain at the drain
screw)
C
Sample water outlet with ball valve
5.8.1 With tubing connection
1 Release union nut (C) on the hose screw
connection.
2 Insert the tubing (D) until it meets the
hose bushing (A).
3 Push the locking ring (B) out until the
union nut (C) engages the connecting
threads.
NOTICE
No water pipes made of copper may be fit-
ted in the installation. They would falsify the
measurement.
A
B
C
NOTICE
The water-tightness of the hose screw con-
nection is only guaranteed if the following
installation instructions are followed!
A
B
C