What to do if the Endress+Hauser Proline Promass E 300 Measuring Instruments local display is dark with no output signals?
- AajonesAug 13, 2025
If the local display of your Endress+Hauser Measuring Instruments is dark and there are no output signals, it could be due to several reasons. First, ensure that the supply voltage matches the value indicated on the nameplate and that the polarity is correct. Check the connection of the cables and correct if necessary. Also, verify that the terminals are correctly plugged into the I/O and main electronics modules. If the issue persists, the I/O or main electronics module might be defective, and you may need to order a spare part.