The update of a DR3900 or DR6000 can be performed either with an USB update stick or via download directly to the photometer from the instrument web page. This article will address software updates through USB. To learn more about software updates made while connected to the internet please see the related article: How are software updates performed on the DR3900 and DR6000 spectrophotometers over an established internet connection?
1. Go to HACH website and type either DR3900 or DR6000 into search terms bar. The search type will be 'Downloads' and the category will be 'Software/Firmware'.
2. Download zip file, unpack zip file, copy the files (*.tar.gz + readme-File) to the USB memory stick
3. On the DR3900 or DR6000, click System Checks in main menu:
4. Click Instrument Update:
5. Follow instructions on the instrument: