Water sampling immersion probe

A process water analysis arrangement for continuously analyzing a water sample of wastewater, the process water analysis arrangement comprising:

• a water sampling immersion probe for continuously filtering a water sample from wastewater, the water sampling immersion probe comprising:
• a distal coarse filter comprising a porosity of 0.1 to 1.0 mm;
• a proximal fine filter arranged downstream of the distal coarse filter, the proximal fine filter comprising a porosity of less than 50 μm, the distal coarse filter and the proximal fine filter being arranged so as to not contact each other, wherein the distal coarse filter and the proximal fine filter define a venting chamber, wherein the venting chamber is vented at a bottom and the venting chamber is inclined with respect to vertical with an inclination angle between 5° and 80° degrees and completely submerged so that rising air bubbles remain in contact with a distal side of a membrane of the proximal fine filter over the entire height of the membrane;
• and
• a sample suction opening arranged downstream of the proximal fine filter;
• a control unit comprising a sample pump, and
• a water analysis apparatus,
• wherein, the water analysis apparatus is fluidically connected to the sample suction opening so that the water sample is pumped from the water sampling immersion probe by the sample pump to the water analysis apparatus.