User Manual Owner's manual

Rockwell Automation Publication PROCES-UM002A-EN-P - July 2014 151

Liquiline M CM42 Transmitter Appendix M

Supply and Signal Circuit

For safe communication via the HART protocol and for compliance with the

NAMUR NE 21, use a 2-wire cable shielded on each end. The second current

output is an option.

Following are figures of the view in device (CPU module) (left) and the wiring

diagram (right).

Sensor Connection: pH / ORP

Following are figures of the glass electrodes with PML (symmetrical) view in

device (CPU module) (left) and wiring diagram (right).

CPK9

318

320

112

113

111

317

CM42

319

316

315

Ref

Sensor

CPK1