IM 50.560CA UA (B/4-03) 87
DEPOLOX
®
3 PLUS RESIDUAL ANALYZER
to be determined empirically, but it is recommended to clean or calibrate
it every four weeks. To prevent incorrect measurement, both the glass
diaphragm and the ceramic membrane have to be cleaned. Clean the glass
diaphragm mechanically with a moistened, clean and soft napkin or cot-
ton swab.
Do not clean the probes with a dry napkin or cotton swab as this method
tends to produce a uniform cover of dirt on the probe surface. Do not use
abrasive cleaning methods to clean the membrane.
Remove oil or grease with acetone, denatured alcohol or glass cleaning
liquid. After cleaning it, rinse the probe thoroughly with water.
To remove calceous deposits from glass diaphragm and membrane, sub-
merge the probe in 0.1mol hydrochloric acid. Rinse thoroughly with dis-
tilled water.
Probe ageing is frequently the cause of a sluggish pH-value indication or
a declining slope. pH-probes have a service life of one to three years
provided that they are serviced regularly.
To store the sensors after use: At delivery the sensor has a protection cap
over the pH sensitive membrane glass resp. the diaphragm. The cap con-
tains 3mol KCl solution to keep the sensor ready for use. If the sensor is
to be stored for longer time, the cap with the KCl solution should be placed
over the sensor again. Protect against frost. Do not store the sensor in
distilled water.
4.5 Fluoride Sensor Kit
See Instruction Sheet provided with probe.
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