A: The GEM500 does not support the full range of features that the GEM™2000 does, such as custom pump running time, info labels and custom questions. If you create a Well ID list using these features in DataField , then upload the list to the GEM500 and subsequently download that same Well ID list, you’ll find that the non-supported features are gone. The correct way to handle Well ID lists is to create them in your instrument communications software and save them in files on your computer, thus ensuring that the list is not lost. Then when the Well ID list is needed, load it into the software, then upload to your GEM500 and/or GEM™2000 instruments. The GEM500 only interfaces with DataField; the GEM™2000 interfaces with both DAtaField and LSGAM. When you use LSGAM (GEM™2000), because the list is already saved on your computer, you will never have to download it from the instrument. If you are interfacing with DataField (GEM500), save your IDs on your computer.