Step Description Picture
12
• Insert the NG3 filter into the cell holder. Make
sure to install the filter in the correct orientation.
• Install the instrument cup.
Note: The filter is light-tight. Therefore, it is not
necessary to install the instrument cap.
• Push to measure the absorbance.
• Make a note of the measured value of the
NG3 filter and enter the actual value in the
Certificate of Service Inspection.
13
• Insert the BG3 filter into the cell holder. Make
sure to install the filter in the correct orientation.
• Install the instrument cup.
Note: The filter is light-tight. Therefore, it is not
necessary to install the instrument cap.
• Push to measure the absorbance.
• Make a note of the measured value of the
BG3 filter and enter the actual value in the
Certificate of Service Inspection.
14
• Remove the filter.
• Install the instrument cup.
• Push to measure the absorbance of the air.
• Make a note of the measured air value and enter
the actual value in the Certificate of Service
Inspection.
15 If the measurements are within limits and the display
and function keys are OK, fill out the Certificate of
Service Inspection and sign. Refer to Certificate of
Service Inspection (manually) on page 81.
This inspection task is also available as a service video on HSO. HSO full access
requires login credentials. First log into HSO and afterwards click on
https://support.hach.com/app/answers/answer_view/a_id/1024331. Select the desired
service video.
Inspection
32
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