SITRANS F M MAG 5100 W 
Operating Instructions, 11/2010, A5E03063678-02 
3 
Table of contents 
 
1  Introduction................................................................................................................................................ 5 
1.1  Items supplied................................................................................................................................5 
1.2  History............................................................................................................................................5 
1.3  Further Information ........................................................................................................................6 
2  Safety notes............................................................................................................................................... 7 
2.1  Laws and directives .......................................................................................................................7 
2.2  Installation in hazardous area........................................................................................................9 
2.3  Certificates ...................................................................................................................................10 
3  Description............................................................................................................................................... 11 
3.1  System components ....................................................................................................................11 
3.2  Theory of operation......................................................................................................................12 
4  Installing/Mounting................................................................................................................................... 15 
4.1  Installation safety precautions......................................................................................................15 
4.2  Determining a location .................................................................................................................16 
4.3  Orienting the sensor.....................................................................................................................18 
4.4  Mounting ......................................................................................................................................19 
4.5  Potential equalization...................................................................................................................21 
5  Connecting .............................................................................................................................................. 23 
5.1  Remote installation ......................................................................................................................24 
5.2  Installation check .........................................................................................................................26 
5.3  Potting..........................................................................................................................................26 
5.4  Direct burial..................................................................................................................................28 
6  Service and maintenance ........................................................................................................................ 29 
6.1  Maintenance.................................................................................................................................29 
6.2  Recalibration ................................................................................................................................29 
6.3  Transportation/storage.................................................................................................................29 
6.4
  Unit repair.....................................................................................................................................30 
6.5  Technical support.........................................................................................................................30 
6.6  Return procedures .......................................................................................................................31 
7  Troubleshooting/FAQs............................................................................................................................. 33 
7.1  Sensor check ...............................................................................................................................33 
7.2  Fluctuating process values ..........................................................................................................35