Cerlic pHX, Руководство пользователя, Страница: 7 / 24

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8. Mounting the electrode
In order to mount an electrode the sensor must be opened in both ends. At the cable end,
the electronics of the sensor is mounted to the black PVC-top. Care must be taken in
order not to damage the circuit board. Both ends are easiest opened by carefully turning
and pulling at the same time.
The electrode is mounted in the electrode holder by taking the enclosed nut, washer and
O-ring and threading them onto the electrode. Adjust the electrode position so that the
small ceramic part (marked 1 in figure 2) on the lower part of the electrode is in contact
with the measuring media. Then tighten the nut with your hand.
If you have an electrode, which does not have a hard-wired cable, the protective cover
on top of the electrode should be removed and the enclosed plug-in cable should be
used to connect the electrode and the electronics.
Feed the cable through the sensor tube, and mount the electrode holder in the tube. Be
careful not to damage the sealing.
Connect the cable to the electronics, and mount the electronics in the tube. It is easier to
get the cable in place if the tube is turned so the cable gets curled. Be careful not to
damage the sealing or the cable.
If the electrode cannot be immersed into the measuring media before it is put to use, the
electrode's small, plastic protective cover should be filled with a buffer solution of pH 7.
Figure 2: Mounting the electrode