Hach-Lange DR 3800 User Manual - Manual (Page 116)

116
Advanced Operations
6. The last reading and slope for each 15 minute interval are
displayed. At the end of the hour, the overall values are
calculated and displayed. The test proceeds to completion.
7. Press Cancel to return to Optical Checks.
6.8.3.6 Verification kit
The Verification Kit (see Section 9 on page 131 ) is designed for
periodic monitoring of scattered light, photometric accuracy and the
wavelength accuracy of the spectrophotometers.
When results exceed allowable tolerances (given in the quality
control certificate to the test record), contact the manufacturer.
1. Press Verification Kit in the Optical Checks menu.
2. Press Nominal Values.
3. Press Edit.
An automatic menu guidance queries values (filters,
wavelength, nominal values and tolerances) given in the quality
control certificate, to the following specifications:
• Stray Light
• Photometrical accuracy
• Wavelength accuracy
4. Press OK when all values are entered and the overview is
displayed.