Enraf’s Field Display & Interface Unit (FDI) provides professional tank inventory information in the field, where it is needed. It is a versatile, EEx-d approved instrument with several interface options, which can even be part of W&M approved applications.
The design of the FDI is therefore based on reliable and uninterrupted data
supply in all circumstances. The unit can be used in stand alone mode using the Enraf Bi-phase Mark communication protocol for direct connection to an Enraf gauge, or any other gauge using this standard communication protocol in tank farms. The unit will interrogate the gauge and display its measured data.
To update its display in bigger installations where a remote tank inventory
system is available, the indicator listens to the communication between the field instrument and the remote system. When the communication between system and gauge fails, the FDI automatically takes over the scanning of the instrument to provide the measurement data in the field. After sensing the scanning from the system again, it returns to the original configuration.
