JUMO dTRANS pH 02, Operating Manual, Page: 53 / 136

53
8 Calibrating a pH measurement chain
8.3 Zero point (1-point) calibration
✱
Make preparations, see chapter 8.2 "General information", page 51.
✱
Start calibration, see chapter 8.2.2 "Ways to start the calibration", page 52.
✱
Select zero point calibration.
✱
Immerse the combination electrode in a buffer solution with a known pH
value.
✱
Start the zero point calibration with the key.
✱
With manual temperature entry, use the and keys to set the
calibration solution temperature and confirm your entry with the key.
✱
Wait until the display value has stabilized; then press to continue.
PGM
Now the source of temperature acquisition can be selected (manually, or using
the temperature input of the basic board, or the temperature input via the
optional board). This source will be active for the duration of the calibration.
An example follows: Manual temperature entry:
PGM
PGM