DEPOLOX® Pool Compact
5. Installation
39
EN
•
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 (chap-
ter 5.10).
•
If the inlet pressure exceeds 45 psig (3.0
bar), an optional pressure reducing valve
must be used (chapter 5.10).
•
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, flow cell
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.
Fig. 5
Detail of hose screw connection
A Hose bushing
B
Locking ring
C
Union nut
D Tuning
5.8.2 With rigid pipes
1 Connect the sample water pipework to
the connection thread (G1/2” A) of the
ball valve.
5.9
Connecting the sample water
outlet
1 On the pressurized version, a maximum
back-pressure of 22 psig (1.5 bar) is per-
mitted on the sample water outlet.
2 Ensure that the drain screw (flow cell
drain valve) is always closed, see chapter
3.6.1.
NOTICE
The water-tightness of the hose screw con-
nection is only guaranteed if the following
installation instructions are followed!
A
B C
NOTICE
Ensure that the sample water pipes are
installed free of mechanical stress.
NOTICE
No water pipes made of copper may be fit-
ted in the installation. They would falsify the
measurement.
C
C
D
D
A
B
A
B