BL13X Series Swimming Pool Controllers for pH Disinfection and Control BL13X swimming pool controllers are automatic systems, specially designed to measure and control pH and free-chlorine levels. All measurements and main events are sent to Hanna Cloud. Compared to the BL12x series, these new controllers feature: • Removable faceplate to access pumps, USB-C, and connections. • External dosing · These controllers have 2 relays that can be used to control larger external dispensing pumps, allowing the BL13x to be used in larger pools. • Air temperature sensor · Allows triggering an alarm if the air temperature is cold enough that there is a risk of water freezing in the pipes (e.g. hot tubs in winter with the circulation pump off) • Bidirectional control · Use the Hanna Cloud to update settings on the controller • User selectable logging interval · As pool settings normally do not change that quickly, minimize data management by choosing from a wide selection of logging intervals See page 15.16 | www.hannainst.com New xx Style and Performance.
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