Q: What is the difference between free chlorine and total chlorine monitoring?
A: Free chlorine refers to hypochlorous acid and hypochlorite ions immediately available for disinfection. Total chlorine includes free chlorine plus combined chlorine (chloramines). For drinking water distribution networks, free chlorine residual is the primary compliance parameter. Linksens offers sensors for both measurement types.
Q: Can sensors be installed directly in the distribution pipe network?
A: Yes. Linksens sensors support both flow-through (in-line flow cell) and immersion installation. For pipe network monitoring points — such as booster stations and pressure zone boundaries — flow-through assemblies ensure a representative sample without stagnation effects.
Q: How do I protect sensors in outdoor distribution network monitoring cabinets?
A: All Linksens online sensors are rated IP68 for continuous immersion and fully protected against dust and water ingress. For outdoor installations, a ventilated enclosure cabinet is recommended to manage temperature extremes and UV exposure on cable connections.