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Process Unit 73 LF - Knick

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Calibration Solution for Automatic Calibration<br />

For automatic cell calibration, you must define the<br />

calibration solution you want to use.<br />

How to define the calibration solution<br />

Open the Parameter Setting menu (adm or opl<br />

level, resp.), select ”Calibration Solution” using<br />

, and confirm with .<br />

Select the calibration solution using and <br />

and confirm your choice with .<br />

Select the concentration of the calibration solution<br />

using and and confirm your choice with<br />

.<br />

For temperature charts of the calibration solutions<br />

refer to chapter 15.<br />

Temperature Detection<br />

Why Temperature Detection?<br />

There are two important reasons for determining<br />

the temperature of process or calibration solution,<br />

resp.:<br />

<br />

<br />

Compensation of the process solution’s temperature<br />

dependence:<br />

The conductivity of the process solution is temperature<br />

dependent. By entering a temperature<br />

coefficient for the process solution and a reference<br />

temperature, all conductivity values can<br />

be calculated for the reference temperature.<br />

The conductivity of the calibration solution is<br />

temperature dependent. Therefore, the calibration<br />

solution temperature must be known for<br />

calibration to determine the temperature-corrected<br />

conductivity from the chart stored by the<br />

instrument.<br />

During parameter setting you define if process<br />

and/or calibration temperature are automatically<br />

measured or must be entered manually.<br />

Capabilities 9–13

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