Calibrating The 2100N (User Selected Standards) - Hach 2100N Instruction Manual

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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.
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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
value (reflecting the previous calibration) to agree with the actual turbidity of
the standard. This is done by using first the
editing mode and then using the other
45
key to measure each standard, edit the displayed
RIGHT ARROW
keys to edit the number.
ARROW
to get into the