Thermo Scientific Orion Star LogR Meter, Руководство пользователя

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65 Thermo Scientific Orion Star LogR™ Meter User Guide
Advanced Orion Star LogR Meter’s Electrode Diagnostics
plug is not covering the filling hole. If there is some salt crystallization blocking
the filling hole, rinse off the electrode with distilled water to remove the salts.
Avoid water ingress into the electrode filling hole. If the electrode becomes
contaminated during rinsing, follow the steps in part d.
d. the reference fill solution. If the fill solution becomes contaminated it will be
necessary to replace the fill solution. To do this:
i. drain the reference chamber through the filling hole (either with a pipette or
invert the electrode and use a wipe to draw the solution out from the filling
hole).
ii. Flush with fresh filling solution and refill the chamber. Ensure no air bubbles
are present. (Refer to above note regarding air bubbles if needed.)
iii. Rehydrate by soaking the electrode in electrode storage solution for one
hour.
Deionized Water
Deionized water should not be used as a substitute for electrode storage solution,
or as the solution for the periodic electrode testing when resistance readings are
gathered, as there are not enough salts in this type of water.
a. If deionized water has been used for storage, ions will have been leached out of
the electrode’s fill solution.
i. If you have a refillable electrode, replace the fill solution in the electrode.
Rehydrate the electrode by soaking it in the recommended electrode storage
solution for one hour prior to use.
ii. for sealed electrodes, replacement of the electrode is suggested.
b. If deionized water has been used during the periodic testing process, the
resistance change from the testing process to reading a sample could be
dramatic leading to incorrect analysis of electrode faults and readings. Simply