14 Installation
AZURA® Conductivity Monitor CM 2.1S Instructions, V6710
4.3 pH monitor (optional)
The pH monitor is used to measure the pH value in aqueous solutions
such as buffers. The pH monitor consists of a pH electrode and a pH flow
cell.
When flushing the monitor at high flowrates or using non-saline solvents,
the pH electrode should be excluded from the flowpath. If the pH electro-
de is not plugged into the socket of the CM 2.1S (s. Fig. 1, Nr.
3
), cover
the socket using the BNC blind plug.
Legend:
1
Locking ring
2
pH flow cell
3
pH electrode with
protective cap
4
BNC blind plug
Fig. 6:
pH flow cell, pH electrode and BNC blind plug
4.3.1 Assembling pH monitor and attaching to conductivity
monitor
Process
Figure
1.
Screw the locking ring
1
off
the pH flow cell and pull it over
the cable of the pH electrode
2
.
2.
Remove the protective cap
3
from the pH electrode.
3.
Insert the pH electrode into
the pH flow cell and tighten
the locking ring.
4
2
1
3
2
1
3
