Hach-Lange DR 3900 User Manual - Manual (Page 108)

108
Expanded programs
6.7 Time course of absorbance/transmittance
The Time Course mode is used to collect data in either
absorbance or transmittance for a user-specified length of time.
This data can be displayed in either graphic or tabular format.
While the time scan is taking place, the cell compartment cover
must be closed. Therefore, a scan of the round cell compartment
is not possible.
6.7.1 Time course setup parameters
1. Press Time Course mode in the Main Menu.
2. Press Options to configure parameters.
Table 16 Time course options
Options Description
More For further options
Folder icon To store the scan data
Time & Interval
To input the total time for data collection and the time interval between the collection of data
points
λ To input the wavelength setting
View Table
To display readings in absorbance, transmittance or concentration. This can be changed after
sample data is collected
Scale & Units
Scale: In the automatic Scaling mode, the y-axis is automatically adjusted so that the total scan
is displayed.
The manual Scaling mode allows sections of the scan to be displayed.
Units: Choice of absorbance or transmittance.
Send Data To send Data to a printer, computer or USB memory stick (Type A)
Recall measurement
data
Recall saved measurement data, wave-length scans or time courses, see section 5.3, page 43 .
Instrument Setup Basic data of the instrument, refer to section 5.2, page 27 .