Metrohm 904 Titrando - Manual (Page 32)

3.5 Connecting sensors
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904 Titrando
NOTE
The electrode cable is protected against accidental disconnection
of the cable by means of a pull-out protection. If you wish to pull
out the plug again, you will first need to pull back the outer plug
sleeve.
3.5.2 Connecting a reference electrode
Connect the reference electrode as follows:
1 Plug the electrode plug into the Ref. socket of the 904 Titrando.
Figure 13 Connecting a reference electrode
3.5.3 Connecting a polarizable electrode
Connect the polarizable electrode as follows:
1 Plug the electrode plug into the Pol. socket of the 904 Titrando.
Figure 14 Connecting a polarizable electrode