Tophit H CPS471/CPS471D
Hauser
7
Chemistry and process (Ex applications)
Process sterilizibility is no problem due to the wide range of applications for the ISFET pH sensor, not only
relating to temperature but also to pH. There is only a small range of high pH values connected with high
temperatures where the sensor is not constantly stable (see "Process"). Media with these characteristics remove
the isolator oxide from the ISFET chip. As this is the pH and temperature range of CIP cleaning media, the
ISFET pH sensor should only be used in combination with an automatic retractable assembly.
Benefits of the Topcal fully automatic measurement, cleaning and calibration system:
• CIP cleaning
The sensor built into the retractable assembly is automatically "moved" out of the medium before cleaning.
In the rinse chamber of the retractable assembly the sensor is cleaned with suitable cleaning solutions.
• Calibration cycles can individually be set.
• Low maintenance costs due to fully automatic cleaning and calibration functions.
• Measuring results are optimally reproducable and the individual value tolerances are very low due to the
automatic calibration.
a0003880-en
Fig. 6:
Measuring system with fully automatic measuring, cleaning and calibration system Topcal S
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2
3
4
Tophit
Cleanfit H CPA475
Mycom S CPM153
Power supply
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6
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8
Control unit CPG310
Cleaner, buffer solutions
Steam, water, cleaner
Rinse block
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10
11
Power cable
Compressed air
Liquids / cleaner
