multi N/C pharma HT
Operation
75
}
If a display is red: Check for errors.
}
Fill the sample vessels with the sample solution. Place the sample vessels on the
sample tray.
}
For NPOC measurements with the AS vario: The autosampler can automatically acid-
ify samples. To do this, fill the acid container with HCl (2 mol/l). Place the acid con-
tainer at the acid position of the sample tray:
– Position 28 on sample tray 47
– Position 42 on sample tray 52
– Position 55 on sample tray 72
– Position 85 on sample tray 100
– Position 131 on sample tray 146
}
For NPOC measurements with the EPA autosampler: Place the acid container at posi-
tion 54 on the sample tray.
}
Start the measurement: Click on Start measurement. Alternatively: Open the Mea-
surement |Measurement start menu option.
ü
The Measurement start window opens.
}
Enter a name for a new analysis table in the Measurement start window. Alterna-
tively: Select an existing analysis table with [Edit].
}
Open the Current sample data window with [Start].
}
Open an existing rack table and add to it.
Or: Enter the sample ID in the Sample ID column in the new rack table. Check the
sample tray assignment for this. If necessary, enter the dilution, the sample type, the
unit and any comments.
}
Activate all samples or activate each sample individually with [
>
].
}
Confirm the entries with [].
ü
The rack table is closed. A query follows whether the rack table should be saved.
}
If the rack table is to be used again later: Answer with [Yes]. Save the rack table in
the default window for saving files.
}
Start the measurement with [Start F2] in the Measurement window. Carry out the
software instructions that follow.
ü
The analysis table displays the measurement results at the end of the measure-
ment.
See also
2
5.6
Operating the integrated solids module
Preparing for the measurement
}
Check that the solids module has been properly installed before switching on the an-
alyzer. Check that the correct carrier gas (oxygen, ≥4.5) is connected.
}
Switch on the analyzer.
The carrier gas flow is automatically set to 400 ± 10 ml/min as soon as a solids
method is loaded.
}
Check the system for leaks.
