Hach-Lange BODTRAK II: Respirometric Biochemical Oxygen Demand (BOD) - Manual (Page 35)

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Section 6 Maintenance
DANGER
Only qualified personnel should conduct the tasks described in this section
of the manual.
6.1 Cleaning the instrument
Clean spills on the BODTrak™ II instrument with a soft cloth which has been
dampened with deionized or distilled water.
6.1.1 Sample bottles
After each test, empty the sample bottles and flush them thoroughly with hot water.
Use a brush, hot water and soap to remove residue. Residue creates a BOD. Flush
the bottles thoroughly with tap water and finally with distilled or deionized water to
remove all detergent.
6.1.2 Stir bars and seal cups
Clean the stir bars with hot water and soap. Use a brush to remove deposits. Flush
with tap water and finally with distilled or deionized water to remove all detergent.
Carefully empty and rinse the seal cups with water. Invert to dry.
6.1.3 Bottle fences
The bottle fences prevent tipping of the bottles and provide tubing management
during storage. For storage, put the tubing into the opening in the bottle fence.
Wind the tubing counter-clockwise and secure the bottle cap inside the fence.