Knick Stratos Pro A4..MSPH series, Instruction Manual

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-U1- Specifiable Buffer Set
You can specify a buff er set with 2 buff er solutions in the temperature
range of 0 ... 95 °C, step width: 5 °C.
To do so, select buff er set -U1- in the confi guration menu.
As delivered, the Ingold technical buff er solutions pH 4.01 / 7.00 are
stored as buff er set and can be edited.
Conditions for the specifi able buff er set:
All values must lie in the range pH 0 ... 14 •
Maximum diff erence between two adjacent pH values •
(5 °C step width) of the same buff er solution: pH 0.25
The values of buff er solution 1 must be lower than those of •
buff er solution 2:
The diff erence between values for identical temperatures must be
greater than 2 pH units.
Faulty entries are indicated in measuring mode by the
“FAIL BUFFERSET -U1-“ message.
The 25 °C value is always used for buff er display during calibration.