Knick Stratos Pro A401B PH, User Manual

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Calibration is used to adapt the device to the individual sensor
characteristics, namely asymmetry potential and slope.
Access to calibration can be protected with a passcode
(SERVICE menu).
First, you open the calibration menu and select the calibration mode:
CAL_PH Depending on configuation setting:
AUTO Automatic buffer recognition (Calimatic)
MAN
Manual buffer input
DAT Input of premeasured electrode data
CAL_ORP ORP calibration
P_CAL Product calibration (calibration with sampling)
ISFET-ZERO Zero adjustment. Required for ISFET sensors,
subsequently you can conduct either a
one or a two-point calibration.
CAL_RTD Temperature probe adjustment
Selecting a Calibration Mode
To preset CAL_PH (CONF menu / configuration):
1) Hold meas key depressed (> 2 s) (measuring mode)
2) Press menu key: the selection menu appears
3) Select CONF mode using left / right arrow key
4) Select “SENSOR“ – “CALMODE“: AUTO, MAN, or DAT.
Press enter to confirm
Selection menu
Selected mode
(blinks)
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