23
Operation
Figure 10 pH/mV channel
Use coaxial cable or triaxial cable to connect the electrode. Triaxial cable is recommended
in environment with problems caused by electromagnetic interferences. Refer to
Figure 11.
Note: For a correct pH measurement a ferrite clamp filter (included) must be added on cable on the
side of pH or redox sensor.
Note: For a correct temperature measurement a ferrite clamp (included) filter must be added con
cable on the instrument side at Pt1000 sensors.
Figure 11 Electrodes connection
4.5.2 Programming
The factory configuration of the instrument is:
• Unit: pH.
• Temperature: From the own channel.
1 pH/mV 2 Temperature 3 Common
RelayspH/mV Electrode
Signal
1 2 3
1 Coaxial cable: To terminal 2 6 Triaxial cable: To terminal 4
2 Coaxial cable: To terminal 3 Independent A.T.C.:(connected by cable code 90 44, 90 45,
etc)
7 Yellow and pink to terminal 5
8 Brown and white to terminal 6
9 Shield (black) to terminal 7
3 Coaxial cable (electrode with A.T.C.): To terminals 5 or 6
indistinctly
4 Triaxial cable: To terminal 2
5 Triaxial cable: To terminal 3
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