Hach-Lange DR 5000 brewerie analysis, supplementary software LZV570 - Manual (Page 37)

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Working procedures
Note: Analysis of additional samples: Repeat working procedure from
point 4.
2.9.1.1 Executing the test with the sipper module
Information about the installation, module configurations and
sample introduction of the sipper module can be found in the user
manual of the DR 5000 Spectrophotometer (15.3.3. Installation
Sipper Module, page 133).
2.9.2 Procedure for measuring thiobarbituric acid number in congress wort
1. Prepare samples and blank value solution as described in the
working procedure.
2. Select STORED PROGRAM s in the “Main Menu”. Select test
number 812 .
3. Insert zero value cuvette containing distilled water into the cell
compartment. Close the cell compartment. Touch ZERO .
4. Insert blank value cuvette (see sample preparation) into the cell
compartment. Close the cell compartment. Touch READ .
Display: E1.
5. Insert the sample cuvette containing the prepared sample into
the cell compartment. Close the cell compartment. Touch
READ . The result is displayed.
Note: Analysis of additional samples: Repeat working procedure from
point 4.