Nivus NFP Instruction Manual

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Contents

Nivus NFP Instruction Manual Manual pdf 60 page image

®Instruction ManualNFPPage 60 NFP - Rev. 02 as of 24.11.200912 Lists of ResistivenessThe standard materials of active pipe sensor parts with medium contact are:- Stainless steel V4A (pipe sensor jacket)- PPO GF30 (sensor body)- PEEK (sensor crystal cover)More materials which however normally do not have any medium contact:- Polyurethane (cable sheath and glands)The sensors are resistant to normal domestic sewages, dirt and rain water aswell as mixed water from municipalities and communities. In many industrialplants (such as Bayer, BASF etc.) the resistance does not represent any prob-lems. The sensors nevertheless are not resistant to all substances and sub-stance mixtures.As a basic principle, damage might occur in case of using chloride mediaas well as various organic solvents.Please observe that substance mixtures (several substances being present sim-ultaneously) under certain circumstances may cause catalytic effects whichmight not occur if the individual substances are in use. Due to infinitely possiblecombinations these catalytic effects cannot be verified entirely.If in doubt please contact your NIVUS representative and request a free materialsample for long time testing purposes.For use in special applications with high aggressive or solvent-containing mediathere are sensors made of full PEEK available with sensor jacket s made of Has-telloy as well as specially coated cables.