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Contents
Page
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Electrical connection
NRV 2-29 .............................................................................................................................................12
Key .......................................................................................................................................................12
Connection of level electrode ................................................................................................................13
NRV 2-29, connecting the terminal strip ................................................................................................13
Wiring diagram .....................................................................................................................................13
Tools .....................................................................................................................................................13
Basic settings
Factory setting ......................................................................................................................................14
Establishing active measuring range (control range) ..............................................................................14
Troubleshooting
Indication, diagnosis and remedy ..........................................................................................................18
Maintenance
Safety note ............................................................................................................................................19
Cleaning the electrode rod ....................................................................................................................19
Removing and disposing of the level electrode
Removing and disposing of level electrode NRG 26-21 ..........................................................................19
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