pH meters measure the acidity of a liquid solution. To achieve this, pH meters take inputs for this quantity, as well as ORP (oxidation reduction potential), rH (relative humidity), and temperature.to complete the final callculations for the pH value. DC calibrators such as the 2553A are well positioned for verifyinf the temperature response on pH meters due to their ability to precisely tune output voltages with low drift and excellent stability.
直流电压:±75ppm 直流电流:±120ppm
稳定性:±15ppm/h 噪声:2µVrms
5.5位 ±120000计数输出分辨率