
Coding Field
Selection or range
Factory setting (bold)
Display Info
R216
Enter alarm
threshold
(as an absolute
value)
pH 16.00
pH –2,00 ... 16.00
1500 mV
–1500 ... 1500 mV
100.0 %
0.0 ... 100.0 %
When the alarm threshold is
violated, the measuring
transmitter issues an alarm with
an error message and error
current (note alarm delay in
field F3).
When defining the min contact,
the alarm threshold must be set
to a lower value than the
switch-off point.
R217
Show status for
limit contact
MAX
MIN
Only display.
R2 (2)
Configure limit
contactor for
temperature
measurement
LC PV = limit
contactor pH/redox (1)
LC °C = limit
contactor T (2)
PID-controller (3)
Timer (4)
Clean = ChemoClean (5)
Neutra controller (6)
Confirmation with ENTER
switches off a different, already
switched-on function and its
settings are reset to the default.
R221
Switch function of
R2 (2) off or on
off
on
R222
Enter switch-on
temperature
150.0 °C
–50.0 ... 150.0 °C
Never set switch-on point and
switch-off point to the same value.
R223
Enter switch-off
temperature
150.0 °C
–50.0 ... 150.0 °C
The switch-off point entry selects
a max contact (switch-off point
< switch-on point) or a min
contact (switch-off point
> switch-on point), thereby
implementing an always required
hysteresis function (see Fig.
5.10).
R224 Enter pickup delay
0s
0 ... 2000 s
R225
Enter dropout
delay
0s
0 ... 2000 s
Factory settings are printed in bold face;
base version does not include functions in
italic
.
16.00
pH
R216
A.Thresh
R217
LC State
MAX
LC °C R2
Sel.Type
off R221
Function
150.0 R222
°C
On value
150.0 R223
°C
Off value
0 R224
s
On Delay
0 R225
s
Off Delay
Instrument configuration Liquisys M CPM 223 / 253
44 Endress+Hauser
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