1.4 Dissolved Oxygen Probe............................................................................................................... 117
1.4.1 Dissolved Oxygen Principle ............................................................................................... 117
1.4.2 Probe Care ......................................................................................................................... 117
1.4.3 Membrane Housing Replacement...................................................................................... 118
1.4.4 Membrane/O-ring Replacement (Optional Procedure) ...................................................... 118
1.4.5 Electrolyte Solution............................................................................................................. 119
General Information...............................................................................................120
Warranty…………................................................................................................................................ 120
Return of Goods.. ................................................................................................................................ 120
Guidelines for Returning Unit for Repair.............................................................................................. 120