As a fundamental part to assess traceability and the quality of pH-measurements carried in analytical laboratories in Colombia, National Metrology Institute of Colombia-INM has developed and implemented a secondary pH-measurements system that allows certification of reference materials or standards; in order to generate the best metrological tool required to be the reference and to make measurements of pH, in industry and academia in the country. To optimize this type of determination by secondary pH-measurement system, an automatic program based in LabVIEW was developed, this program configures and performs the operation of integration from measuring instruments for data recording and controlling process in realtime, which is a step necessary for making easy the subsequent data recording and experimental data analysis.