Hach DR300 User Manual page 14

Figure 6 Install the instrument cap over the cell holder
6.1 Download a test procedure
1. Go to http://www.hach.com.
2. Enter "DR300" in the Search box.
3. Select the applicable instrument from the list.
4. Click the Downloads tab.
5. Scroll down to "Methods/Procedures".
6. Click the link for the applicable test procedure to download it.
14 English