GHM Delta OHM HD3405.2, Руководство пользователя

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Some of the most frequent problems and their possible solutions are reported below.
Wrong pH measurement . Carry out the following checks:
Check that the diaphragm is not obstructed and possibly clean it using the HD62PT solution.
Check that the reference system is not contaminated and, in case of a filling type electrode, replace
the electrolyte with the
KCL3M solution (electrodes KP63, KP64 e KP90) or the PROTELYTE
solution (electrodes KP61, KP71 e KP80).
Check that no air bubbles are present in the electrode tip and that it is sufficiently immersed.
Even dirt residuals deposited on the membrane can alter the measurement: use the
HD62PP solu-
tion for protein cleaning.
Slow response or wrong measurements . Possible causes are aging or erosion of the membrane or
a connector short circuiting.
Storage. Keep the electrode immersed in the HD62SC solution.