YSI IQ S ENSOR N ET VARiON Plus 700 IQ - Manual (Page 51)

VARiON
®Plus
700 IQ Maintenance and electrode exchange
6 - 5 ba76000e01 01/2012
6.3 Exchanging the electrodes
Caution
The sensor can be damaged by dirt and moisture. Each time
before dismantling an electrode carefully clean the area around
the electrodes (section 6.2). Before mounting an electrode make
sure the area behind the sealing ring of the electrode and the
receptacle are dry and clean. The VARiON
®Plus
700 IQ may only be
submersed when the electrodes or original blind plugs are
mounted.
Use the special socket wrench provided to dismantle an electrode.
Electrodes are installed as described in section 3.4.1 E
QUIPPING THE
SENSOR WITH ELECTRODES .
Recognizing the
electrode type from
outside
When mounted, the electrodes can be recognized by the following
features:
Note
For the correct storage of the electrodes please follow the instructions
in section 3.3 N
OTES ON THE HANDLING OF THE ELECTRODES .
Electrode Hexagon Front
surface Other features
VARiON
®
Ref black black – Thread at the
hexagon
VARiON
®Plus
NH4 black black – Hexagon
without thread
VARiON
®Plus
K black white
VARiON
®Plus
NO3 white white – Labeled with the
electrode type
VARiON
®Plus
Cl black black – Larger
membrane
– Membrane flush
with the front
surface