Knick Stratos Pro A401B PH, User Manual

Page: 182 / 196

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Glossary
pH sensor
A pH sensor consists of a glass and a refer-
ence electrode. If they are combined in one
body, they are referred to as combination
electrode. When the sensor has an additional
platinum electrode, the oxidation-reduction
potential (ORP) can be measured simultane-
ously with the pH.
Response time Time from the start of a calibration step to
the stabilization of the sensor potential.
Sensocheck
Sensocheck continuously monitors the glass
and reference electrodes. The resulting infor-
mation is indicated by the Sensoface smileys.
Sensocheck can be switched off.
Sensoface Provides information on the sensor condi-
tion. The zero point, slope, and response time
are evaluated. In addition, the Sensocheck
information is indicated.
SIP
Sterilization In Place – CIP cycles are used
for sterilizing the process-wetted parts in
the process. They are performed for biotech
applications, for example. Depending on the
application, one or more chemicals are used
at temperatures above 115 °C. This extremely
stresses the sensors. Digital sensors can
release a message after preset number of
SIP cycles. This allows replacing the sensor in
time.