Electrode Body Material: Glass, PVDF or PEI Glass The glass body electrode can withstand high pressure and high temperature applications. The glass body also o¨ers high resistance to aggressive chemicals (only ºuoridic acid and strong alkaline solutions can damage glass). PVDF The PVDF body used for the Flat Tip Series withstands high pressure and high temperature applications, and guarantees a high chemical and mechanical resistance. These characteristics makes the PVDF material the most recommended for many industrial applications. PVDF is also non-toxic and compatible with food applications. PEI PEI is a special plastic material used rst to produce electrodes by Hanna. PEI electrodes proved to be ideally suited to eld applications, as well as industrial environments. An electrode with a PEI body represents a very good combination of chemical, mechanical, and thermal resistance which can be used in non-critical applications (e.g. swimming pools), or with portable meters for routine eld monitoring and control, such as wells, lakes and rivers, and discharges of tanks and reservoirs. Built for Everyday, Demanding Use Hanna provides glass sensors that are able to withstand the previously listed industrial environmental challenges. Mechanical Stress In a continuous in-line installation, the glass sensor of the pH electrode can be physically damaged by solution streams containing suspended solids. Our Flat Tip electrodes are the best answer to this problem. The ºat tip virtually eliminates deposits that can foul the electrode, signicantly reducing necessary maintenance. Flat Tip Advantages 1 2 Glass Type Application pH Range Temperature Range LT low temperature 0 to 12 -10 to 80°C HT high temperature 0 to 14 0 to 100°C HF acid samples with fluoride 0 to 10 -5 to 60°C Electrodes Designed and Manufactured by Hanna Process Electrodes 15 Process Instrumentation 15.112 | www.hannainst.com electrodes
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