Jenway 3540 - Manual (Page 60)

The display now changes to request the third buffer (3 / 3), rinse the electrode with
de-ionised water and blot up any excess with clean, soft tissue, before immersing the
electrode in the next buffer. While the electrode is not transferred a warning triangle
will be displayed in the icon bar.
Buffer 3 of 3 with an expected value of 10.039
When the endpoint icon is displayed a further press of the CAL key will confirm the
calibration and set the display to the temperature-corrected value for that buffer.
Main measurement screen returned after the completion of a successful 1, 2 or 3-point calibration
An information box is momentarily displayed with the slope and offset data that will be
stored in the statistics screen. With the three-point calibration complete the main
measurement screen is returned at this point.
6.13 Calibration
Statistics
Details of the last calibration are stored on the statistics screen. To access this data
use the right or left arrow keys to highlight the Stat tab.
Statistics screen showing results of three-point calibration
The pH calibration value with the temperature and mV value is displayed for each
calibration point along with the respective date and time. The buffer set selected is
also indicated.
The measured offset and calculated slope values for each pair of results is also
displayed.