Advanced Operations

Time & interval:

1.Press Time & Interval in the Options menu.

2.Input the total time and the reading time and press OK to confirm.

Note: In total 500 measuring steps are possible. To select a total time and a time interval that would cause this number of measurements to be exceeded, the time interval is defined automatically and the OK key is inactivated.

Scale & units:

1.Press Scale & Units in the Options menu.

2.Highlight Abs or %T as the required units.

3.Highlight Auto or Manual scaling on the graph´s y-axis.

Note: If manual scaling is selected, use the alphanumeric keypad to set the limits ymin. and ymax.. The graph is adjusted to display only the values in the selected range. If automatic scaling is selected, the instrument sets the limits automatically so that the total range can be displayed.

4.Press OK to confirm.

5.Press Return to return to the scan mode.

6.6.2 Time course scan reading

After the parameters have been selected, the instrument must be blanked, then the sample can be analyzed.

1.Insert the blank cuvette/cell into the cuvette/sample cell holder. Press Zero. The blank reading is shown on the display.

2.Insert the sample cuvette/cell into the cuvette/sample cell holder. Press Read. Start collecting time course (kinetic) data.

Note: During the measurement the Zero and Read keys change to Mark and Stop.

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Hach DR 2800 user manual Time course scan reading, Time & interval, Scale & units