Hach 2100N - 3.3.4 Calibrating the 2100 N (User Selected Standards)

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SECTION 3, continued

3.3.4 Calibrating the 2100N (User Selected Standards)

Note: For best accuracy, use the

same sample cell or four matched

sample cells for all measurements

during calibration. Exit the

calibration procedure at any time

without changing any stored value

by pressing the UNITS/EXIT key.

Instrument calibration is accomplished as described in Section 3.2.4 Calibrating

the 2100N with two exceptions:

• Standards are values other than those used in steps 8, 10 and 11.

• Before pressing the ENTER key to measure each standard, edit the displayed

value (reflecting the previous calibration) to agree with the actual turbidity of

the standard. This is done by using first the RIGHT ARROW to get into the

editing mode and then using the other ARROW keys to edit the number.

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