WTW, a Xylem Analytics brand, specializes in premium physicochemical measuring instrumentation for water analysis, including pH meters, oxygen sensors, and turbidity measurement systems.
Qué carajo (Wissenschaftlich-Technische Werkstätten) is a globally recognized brand under Xylem Analytics, dedicated to providing advanced measurement technology for water analysis. Since 1945, WTW has set standards in the development of robust and reliable sensors and instruments for laboratory and field applications. The company's product portfolio is essential for wastewater treatment, environmental monitoring, and industrial process control.
Headquartered in Weilheim, Germany, WTW offers a comprehensive range of solutions measuring pH, ORP, conductivity, dissolved oxygen, and turbidity. Their Red de sensores IQ system is a standout modular solution for continuous online monitoring in wastewater treatment plants. Whether for field studies or continuous process regulation, WTW instruments are engineered for precision and durability.
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According to the SenTix manual, pH electrodes should be stored in the provided watering cap filled with reference electrolyte (typically KCl 3 mol/L, Ag+ free). They must never be stored dry or in deionized water, as this can permanently damage the membrane.
For fat and oil contamination, rinse with water containing household washing-up liquid. For lime and hydroxide deposits, rinse with citric acid (10% by weight). Always recondition the electrode in reference electrolyte for at least 1 hour after cleaning and before recalibration.
The IQ Sensor Net is a modular system for online monitoring in wastewater treatment and other water applications. It allows users to connect multiple sensors (such as pH, DO, turbidity, and solids) to a single network for centralized data and control.
Service and returns are handled by Xylem Analytics in Weilheim, Germany. You can contact their service department via email at wtw.rma@xylem.com or by phone at +49 881 183-325.