GE Monitor UV-900, User Manual

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Operation
3
Monitor UV-900 User Manual 18-1120-05 Edition AF
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5 Open the UV-900 Cell Calibr. Excel-file on the computer.
6 The solution bottles are marked with the concentration value and the
reference absorbance value for each solution.
Enter the concentration of the solutions in increasing order in the column
UV Test kit Concentration (mg/l)
.
Enter the absorbance value in increasing order in the column
UV Test kit Absorbance (AU/cm) .
Performing the absorbance measurements
For each of the four test solutions, the absorbance will be measured and
automatically compared to its reference value.
1 Switch on the UV lamp, see 3.4 Setting lamp on/off.
2 Select a main menu on the monitor display that shows wavelength
254 nm.
3 Fill one of the supplied syringes with 1.5–2 ml of the 0 AU/cm solution.
Make sure that there is no air in the syringe!
4 Fit the syringe in the Union Luer connector and inject the solution. Do NOT
remove the syringe.
5 Wait until the monitored absorbance value is stable.
6 Perform an
Autozero
operation. See section 3.7 Autozero.
WARNING! When using hazardous chemicals, take all suitable protective
measures, such as wearing protective glasses and gloves resistant to the
chemicals used. Follow local regulations and instructions for safe operation
and maintenance of the system.
WARNING!
Sulfuric acid included in the test soluitons is injurious to health.
Avoid spillage and use eye protection.