Hanna Instrument HI4114-51 Potassium Module, For ISE Combination

The Hanna Instruments HI 4114-51 is a combination (full-cell) ion selective electrode (ISE) for measurement of potassium ions with a ceramic junction, polyvinyl chloride (PVC) membrane, O-ring seal between sensor sensing module and sensor handle, Bayonet Neill-Concelman (BNC) connector, and is refillable. Ion selective electrodes (ISE) respond selectively to ions in the presence of other ions, and are commonly used for water testing, and to analyze biological samples in hydroponics, aquaculture, and agriculture. The ceramic junction of this electrode provides long electrode life in harsh environments, such as wine. The PVC membrane is impregnated with the organic ion exchanger valinomycin. The electrode body is 120mm high and has an outside diameter of 12mm. There is an O-ring seal between sensing module and sensor handle for protection against substances and the electrode is refillable to prolong electrode life. A BNC connector provides tight cable connections.

Specifications

An electrode, also called a sensor or probe, is an instrument used with a meter to test and measure parameters of a substance. All electrodes are probes or sensors, but not all probes are electrodes or sensors. Probes, such as temperature probes, are used to penetrate a material for measurement. Common electrode types are pH, total dissolved solid (TDS), and ion selective electrode (ISE). Electrodes can be half-cell or full-cell (also called combination) types. They can be refillable or non-refillable. Housing material is typically glass or epoxy, and sensors are commonly made with stainless steel or a glass bulb. pH electrodes, which measure the pH of a substance, often have a glass bulb. The bulb senses hydrogen ions, and generates a millivoltage that is picked up by the filling solution and transferred to a wire that connects to the pH meter. Ion selective electrodes (ISEs) respond selectively to ions in the presence of other ions. Electrodes are commonly used by researchers, manufacturers, and hobbyists in a wide variety of industries, such as aquaculture, agriculture, chemistry, food and beverage, wine-making and water-testing, and for scientific applications. An electrode can be used with a datalogger to assist in temperature measurement.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.