Grundfos DMX 24-8 Installation And Operating Instructions Manual page 5

DMX model 226 en
V6.0
6 Operation ............................................................................................. 64
6.1 Description of the Device .......................................................................... 64
6.2 Switching on / off ...................................................................................... 64
6.2.1 Switching on .................................................................................. 64
6.2.2 Switching off .................................................................................. 64
6.3 Adjusting the Dosing Flow by Means of the Stroke length ........................ 65
6.4 Adjusting the Stroke Length Adjustment ................................................... 65
6.5 Possible Failures ....................................................................................... 66
7 Operation with Other Electronics ....................................................... 67
7.1 Electronics Version Stroke sensor ............................................................ 67
7.2 Electronics Diaphragm Breakage Sensor ................................................. 67
7.2.1 Technical Data of the Electronics .................................................. 67
7.2.2 Dimensional Drawing (Electronics Enclosure) ............................... 67
7.2.3 Function ......................................................................................... 68
7.2.4 Electrical Connections of the Electronics ...................................... 68
7.2.5 Relay Outputs ................................................................................ 69
7.2.6 Screwing the Sensor into the Dosing Head ................................... 69
7.2.7 Commissioning .............................................................................. 70
7.2.8 Using the Contacts ........................................................................ 70
7.2.9 Description of the Device .............................................................. 70
7.2.10 Maintenance .................................................................................. 71
8 Integral Overflow Valve ....................................................................... 72
8.1 Function .................................................................................................... 72
8.2 Permissible Media .................................................................................... 72
8.3 Connections .............................................................................................. 72
8.4 Setting of Opening Pressure ..................................................................... 73
8.4.1 General .......................................................................................... 73
8.4.2 Setting Instructions for Opening Pressure ..................................... 73
8.5 Venting ...................................................................................................... 74
8.6 Possible Faults .......................................................................................... 74
8.7 Maintenance ............................................................................................. 74
8.7.1 Intervals for Cleaning and Maintenance ........................................ 74
8.7.2 Replacing the Diaphragm .............................................................. 74
9 Maintenance ......................................................................................... 75
9.1 Replacing the Gear Grease ...................................................................... 75
9.2 Rates for cleaning and maintenance ........................................................ 75
9.3 Cleaning the Suction and Pressure Valves ............................................... 75
9.4 Exchanging the Diaphragm ...................................................................... 76
A. Appendix Dosing Curves .................................................................. 198
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