Mettler-Toledo梅特勒-托利多技术样本资料 DPA pH电极.pdf

HA405-DPA-SC-S8 Pressurized gel-electrolyte electrodes for pH/ORP measurements in chemical processes Technical Data Short description Low-maintenance combination electrodes of the DPA Series from METTLER TOLEDO for the continuous measurement of pH/ORP come complete with a factory-filled, pressurized gel-electrolyte reference system. These long-life electrodes have been designed primarily for use in the chemical industry and in the field of water and wastewater treatment, i.e. for the broadest possible spectrum of chemical process applications. A whole range of integral technical features ensures trouble-free, continuous and highly accurate pH mea- surement with a very short response time: – Prepressurization of the gel electrolyte provides permanent internal pressure within the electrode, thereby preventing the ingress of process medium into the reference system and, at the same time, ensuring con- tinuous cleaning of the diaphragm through the constant slow outflow of smallest amounts of electrolyte. – The patented silver-ion barrier integrated in the reference system avoids contamination and clogging of the diaphragm with black silver sulfide during measurement in process media containing sulfur com- pounds. – Designed for use in stirred tanks (STR), vessels, open tank