Endress+Hauser Liquisys M CLM253 - Page 62

Commissioning Liquisys M CLM223/253
62 Endress+Hauser
Coding Field Range of
adjustment
(factory settings
in bold)
Display Info
R215 Enter dropout
delay
0 s
0 to 2000 s
s
R215
Off Delay
0
A0009071-EN
R216 Enter alarm
threshold
Cond/ind: 9999
mS/cm
MOhm: 200
MΩ·cm
Conc: 9999 %
mS/cm
R216
A.Thresh
9999
A0009072-EN
If the alarm threshold is
undershot/overshot, this
triggers an alarm with the
error message (E067 to E070)
and an error current at the
transmitter (note alarm delay
in field F3).
If defined as a Min contact, the
alarm threshold must be <
switch-off point.
R217 Display status for
limit contactor
MAX
MIN
R217
LC State
MAX
A0009073-EN
Display only
R2 (2) Configure limit
contactor for
temperature
measurement
LC PV = limit
contactor
conductivity (1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
USP (6)
EP PV(7)
R2
Sel.Type
LC ¡C
A0009061-EN
By confirming with ENTER,
another relay function already
switched on is switched off and
its settings are reset to the
factory settings.
R221 Switch function
of R2 (2) off or
on
Off
On
R221
Function
off
A0009074-EN
R222 Enter switch-on
temperature
250.0 °C
-35.0 to 250.0 °C
R222
C
°
On value
250.0
A0009075-EN
Never set the switch-on point
and the switch-off point to the
same value!
R223 Enter switch-off
temperature
250.0 °C
-35.0 to 250.0 °C
R223
C
°
Off value
250.0
A0009076-EN
Entering a switch-off point
selects either a Max contact
(switch-off point < switch-on
point) or a Min contact
(switch-off point > switch-on
point), thereby implementing a
hysteresis that is constantly
required (see "Illustration of
the alarm and limit functions"
figure).