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Mycom S CPM 153
6 Start-up
Hauser
63
MBB7
Relay:
Period:
t
E
min:
n.c.
000.0 s
000.0 s
Alkali dosing: Relay selection
(for pulse length)
Description see above
Sensor technology:
MC1
Look-ahead measurement:
pH circuit 1 = controller
pH circuit 2 = look-ahead
Note in display:
(only look-ahead)
In Quick Setup one process with look-ahead pH
measurement was selected.
!
Note!
Control with look-ahead measurement is only
possible in conjunction with a flowmeter and a two-
circuit transmitter.
MC2
Control with:
pH value circuit 1
pH value circuit 2
Electrical assignment:
(only redundancy)
Selection of with which measured value, control is
effective.
MC3
L
B
:
L
S
:
L
E
:
0.5 m
0.5 m
1.5 m
System arrangement
Enter electrode/dosing point distances:
L
S
: Distance between the controlling electrode and the
acid dosing point
L
B
: Distance between the controlling electrode and the
alkali dosing point
L
E
: Distance from the controlling electrode to the
look-ahead electrode
Remark on Fig. 24: Electrode 1 is the controlling elec-
trode, electrode 2 is the look-ahead electrode.
Fig. 24:
Schematic diagram of two-sided control with
look-ahead pH measurement
MC4
Unit:
Unit:
4 mA value:
20 mA value:
m
s
___
___
Flow velocity flowmeter
Unit
: Entry of the length and time unit for flow velocity
(e.g. m/s).
4 mA value
: Enter minimum flow velocity value.
20 mA value
: Enter maximum flow velocity value.
CODE
CHOICE
(default = bold)
INFO
LB
LS
LE
Mycom 153
Q
Flow
meter
F
pH elec-
trode 2
pH elec-
trode 1
Q
Alkali
Acid
C07-CPM153xx-16-06-00-en-009.EPS
Two-sided pipe flow neutralisation (inline)
with forward-locking pH measurement