New OTC DEF Refractometer Ensures Proper Operation of the SCR System

In order to meet new requirements for NOx standards on diesel engines, most diesel engine manufacturers have chosen to utilize Selective Catalytic Reduction (SCR) technology. SCR-equipped engines require a solution known as Diesel Exhaust Fluid (DEF), a urea solution, to enable this process. The 5025 refractometer is a portable, precision, optical instrument used for measuring the DEF concentration. When a liquid sample is placed on the prism, the light passing through it is bent. The more concentrated the liquid, the more the light will bend. It contains a reticle, or scale, that is enlarged through the eyepiece to measure this light; and the values on the scale have been established to evaluate the DEF condition. According to Adamson, simply place a small liquid DEF sample on the refractometer prism, look through the eyepiece, and read the scale, which has been specifically calibrated for DEF. The OTC 5025 kit includes the Refractometer, a dropper, the lens wipe cloth, instructions and a quick reference guide. It also includes a screwdriver and a durable case. Additionally, SPX is pleased to announce that two new upgrade kits are now available for the OTC DPF Cleaner (P/N 5280). These new upgrade kits include coverage for Detroit Diesel (P/N 556889) and Navistar (P/N 558181) engines. This expanded coverage underscores SPX’s leadership in DPF cleaning and ensures that its customers have the broadest possible coverage of filters.