Knick Stratos Pro A401B PH, User Manual

Page: 181 / 196

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Glossary
GainCheck
Device self-test which runs automatically in
the background at fixed intervals. The memo-
ry and measured-value transfer are checked.
You can also start GainCheck manually in the
diagnostics menu. In that case, also a display
test will be performed.
ISFET adapter Adapter between ISFET sensor and trans-
mitter. Here, the signal of the pH-sensitive
FET is converted to voltage corresponding
to the signal of a glass electrode. This volt-
age is led to the pH input of the device and
is processed further as usual. The adapter is
directly supplied from the device.
ISM
Intelligent Sensor Management –
ISM sensors have an “electronic datasheet”
which allows the storage of additional oper-
ating parameters such as calibration date and
settings directly in the sensor.
One-point
calibration
Calibration with which only the asymmetry
potential (zero point) is taken into account.
The previous slope value is maintained.
Only one buffer solution is required for a
one-point calibration.
Passcode
User-defined four-digit number to select
certain operating modes.