Cleanfit P CPA472D
Installation
Hauser
15
4.
Connect the compressed air supply line for "Assembly service" (Topcal/Topclean: hose no.
o
)
to the lower G 1/8 pneumatics connection.
5.
Also, connect the compressed air supply line no.
o
to the inlet (1) of the upper limit position
switch (S2, via T-piece). This limit position switch supplies the position feedback signal
"Assembly service".
6.
When the position "Service" is reached, the air applied to the inlet S2 (1) is switched through
and can be tapped at the outlet S2 (2) (Topcal/ Topclean: hose no.
r
).
Connection of the electric limit position switches
Like the pneumatic limit position switches, the electric limit position switches also serve as control
elements and determine the sequence of the individual steps.
Connect the NAMUR limit position switches to the corresponding terminals at the transmitter.
Please, refer to the Operating Instructions of the transmitter for the terminal numbers. The following
figure shows the electric limit position switch connection to the terminals 11 to 14 of the Topcal S
control unit, as an example.
3.3.4
Rinse water connection (optional)
The rinse chamber allows you to clean the electrode with water or cleaning solution with a pressure
of 2 to max. 6 bar (30 to max. 87 psi). When using water, you have to install a check valve and a
filter (100 µm) at the inlet side. When you operate the assembly with pneumatic actuation and use
a cleaning solution, you have to install the chemically resistant ON/OFF valve (see "Accessories").
Install an outlet valve at the outlet side of the rinse chamber (see "Accessories").
"
Caution!
There must be a pressure-reducing valve (see "Accessories") upstream if the water pressure can
increase to above 6 bar (87 psi) (including any short pressure surges).
!
Note!
Connect the rinse connections to the in-house facilities via ball valves. If you do not use the rinse
function, please leave the dummy plug installed.
a0004334
Fig. 12:
Electric limit position switches to Topcal
A
B
Limit position switch "Assembly service"
Limit position switch "Assembly measuring"
+
+
11 12 13 14
A
B
–
–
