The digital load cell is a combination of the conventional analog load cell (usually strain gauge based) and the digital electronics that was previously housed remotely. Therefore the digital load cell is technically a hybrid product.
Other types of digital load cell are fundamentally digital, for example double ended tuning fork load cells, due to their being based in the frequency domain.
The digital load cell has the advantage of being able to interface directly with fieldbus networks, such as Modbus and CANbus. This allows several load cells to operate on the same bus simultanously, thereby reducing the amount of wiring that is required within an installation.
Other advantages are the ability to communicate with the load cell, to confirm correct operation and to change settings if needed. The digital load cell has a known calibration and in the event of a replacement being needed, the new item can be pre-configured to have the exact same behaviour as the original.
A conventional analogue load cell can be converted to a digital load cell by fitting one of Mantracourt's DCell or DSC high speed digitiser modules.