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Jenway 3540 User Manual

Page 64

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If a two-point calibration has been selected then the main measurement screen is
returned at this point. The display now changes to request the third standard (3 / 3),
rinse the probe with de-ionised water and blot up any excess with clean, soft tissue,
before immersing it in the next solution

Prompt shows third standard recognised as 12.88mS

When the endpoint icon is displayed a further press of the CAL key will confirm the
calibration and set the display to the value for that standard at the selected reference
temperature.

Main measurement screen returned after the completion of a successful 1, 2 or 3-point calibration

An information box is momentarily displayed with the Cell Constant value based on
the last calibration level. With the three-point calibration complete the main
measurement screen is returned and the calibration is completed.


6.25 Calibration

Statistics

Statistics for the last calibration can be displayed by using the right or left arrow keys
to highlight the Stat tab. For each calibration point the initial conductivity and the
calibrated value are displayed along with the temperature, time and date, the K factor
(cell constant) and off-set value are also given.

Statistics screen following a three point conductivity calibration