Laboratory electrode HI3619D

ORP

The HI3619D is a glass body, refillable, single junction ORP electrode with a DIN connector. This electrode has a single ceramic junction as part of the reference cell and a platinum ORP sensing pin. This design consideration is ideal for general laboratory use and disinfection ORP measurements. Platinum Pin Single Ceramic Junction Use for laboratory general purposes with HI98140, HI98150, HI98230, HI98240 pH meters ode with DIN Connector for General Laboratory ADD TO CART Hanna Instruments offers a wide variety of ORP electrodes that are designed for many different applications. The type of material used for the sensing pin, type of glass used for the body material, type of junction, type of reference and electrolyte used are just some of the design considerations. The HI3619D uses a platinum pin, glass body, single ceramic junction and is refillable with 3.5M KCl + AgCl. Platinum Sensing Pin The HI3619D ORP sensor is made with platinum. An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors. The platinum sensor is often preferred because it is mechanically simpler and safer to produce. Platinum can be welded to glass and has the same thermal coefficient. The platinum sensor signal is carried through the electrode body, and together with the reference signal is conducted to the measurement meter. Glass Body The glass body is ideal for laboratory use.