Hach-Lange POLYMETRON 9245 User Manual - Manual (Page 52)

50
Installation
4.4.11 Sodium ion selective electrode installation
Note: It is critical to preserve the integrity of the sodium ion selective electrode as much as possible. This is
why this electrode must be installed at the very last moment after all other adjustments.
1. Remove the sodium ion
selective sensor from its
box.
2. Remove the plastic
reservoir from the bottom
(the storage solution is
standard tap water) and
shake gently (as you
would a thermometer) to
dispose of any bubbles.
3. Install the O-ring as
indicated right.
4. Install the ISE in the
center position of the
measurement chamber.
5. Connect the AS7 cable
(with the blue label) to the
electrode.
CAUTION
After the electrodes installation, it is very important that none of the electrode heads are
touching the bottom part of the measuring cell. An example of the electrodes correct position
is shown above.