
3 Installation
The following procedure should be followed for a complete measuring system installation:
• Installation or attachment of transmitter
(see chapter 3.3)
• Selection and connection of cable and
electrode (see chapters 3.4, 3.5 and 9)
• Installation is followed by start-up (see
chapter 5)
3.1 Measuring system
The complete measuring system comprises:
• The Liquisys M CPM 223 or CPM 253
transmitter
• A pH or redox electrode with or without an
integrated temperature sensor
• An immersion or flow assembly
• pH measuring cable (e. g. CPK 9)
Optionally:
• Extension cable
• Junction box VBA or VBM
ENDRESS+HAUSER
LIQUISYS
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
ENDRESS+HAUSER
LIQUISYS
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
PM253SYS.CDR
Immersion assembly
CPA 111
Flow assembly
CPA 250
Electrode, e. g. OrbiSint W
CPS 11 with integrated
Pt 100
Retractable assembly
CleanFit W
CPA 450
Junction box VBA
Liquisys M CPM 253
Measuring cable
e. g. CPK 9
Liquisys M CPM 223
Fig. 3.1
Complete measuring
systems
Liquisys M CPM 223 / 253
with measuring cable,
assemblies and pH or
redox electrodes
Installation Liquisys M CPM 223 / 253
6 Endress+Hauser
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