Crison 53 64 Guia De Inicio Rapido página 10

pH electrode 53 64
Introduction
The 53 64 is a low maintenance pH elec-
trode for extremely difficult media.
Electrode preparation
• Remove the storage protector
• Verify that there are not air bubbles inside
the membrane
by shaking the electrode as a clinical ther-
mometer.
Installation
In immersion, insertion, flotation housings,
etc. with PG 13,5 thread.
See Housing instruction manual.
Cable. They are connected to coaxial cables
with an AS9 connector.
Calibration
See pH-meter instruction manual.
Measurements. Recommendations
See pH-meter instruction manual.
Ensure that the electrode's specifications
adapt to the process.
Sample must cover the diaphragm
Maintenance
• Deposits forming on the electrodes,
caused by continual exposure of the sen-
sors to a dirty or contaminated medium, is
one of the most frequent causes of prob-
lems when measuring pH. When possible
it's recommended to use a housing with
automatic sensor cleaning system.
• When an electrode gets contaminated,
the simple rinsing with distilled water is
not suffi cient. The most suitable cleaning
solution is one which acts in a more selec-
tive way over the contamination (look for
CRISON regeneration solutions).
• Re-hydration. A "dry" electrode recov-
ers by immersing it in CRISON cleaning
electrode solution, code 96 00, or in di-
luted HCl solution for several hours. It is
recommended to read the information
supplied with the electrode's regenerat-
ing solutions.
Troubleshooting
... the meter always shows the same pH value.
Short circuit in the electrode or cable.
Substitute the cable or the electrode.
... shifting of pH values.
Reference system contamination.
Replace the electrode
... unstable reading.
Reference system contamination.
Clean, regenerate, replace the electrode.
... impossible to perform calibration.
... very slow response.
Dirt on the membrane.
De-hydrated membrane.
Electrode ageing or wear.
Clean, regenerate, replace the electrode.
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. They can be removed
.
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