5.5.4
ChemoClean function
Just like the timer function, ChemoClean can
also be used to start a cleaning cycle. By
comparison, the function scope is extended
by an option for defining cleaning and rinsing
intervals.
Thus, irregular cleaning with different repeat
cycles is possible, and cleaning times with
post-rinse times can be individually defined.
Note:
•
Use relays 3 (water) and 4
(cleaner) for the ChemoClean
function.
•
Interruption of the cleaning
process is always followed by a
post-rinse time.
•
When “Economy” is selected,
cleaning is performed with water
only.
CHEMO.CDR
t
1
Cleaning trigger
t
2
t
1
Pre-rinse time
t
3
t
2
Cleaning time
t
4
t
3
Post-rinse time
t
5
t
4
Hold delay time
Hold
Water
Cleaner
t
0
t
1
t
3
t
2
t
5
t
4
Fig. 5.13
Sequence of a cleaning
cycle
Coding
Field
Selection or range
default (bold)
Display
Info
R
Function group
RELAY
Relay contacts can be selected
and adjusted.
R1
Selection of
contact to be
configured
Rel1
Rel2
Rel3
Rel4
Rel3 and Rel4 are only available
on transmitter equipped
accordingly. If ChemoClean is
selected as the cleaning type,
Rel4 is not available.
R2 (1)
Configure limit
contactor for O
2
GW PW
=
Limit
contactor O
2
(1)
GW °C = Limit
contactor T (2)
PID controller (3)
Timer (4)
Clean = ChemoClean (5)
PW = Process value
If Rel4 is selected in field R1,
Clean = ChemoClean cannot be
selected.
Confirmation with ENTER
switches off a different, already
switched-on function and its
settings are reset to the default.
The factory settings are printed in bold; functions printed in
italics are not available in the basic version.
R
RELAY
Rel1
R1
Sel.Relay
LC PV
R2
Sel. Type
Instrument configuration
Liquisys M COM 223 F / 253 F
38
Hauser
