GE 4700E Instruction Manual

Also see for Masoneilan 4700E: Maintenance manual

Contents

9 – 9ATEX Instruction Manual GEA19513 – 03/20124700E and 4800E Series Electropneumatic Positioners When replacing the I/P module, check the condition of the three 'O' rings(22, 23 24) and replace them if necessary. To proceed to a cleaning of the different sides of the enclosure to avoidthe deposits of dusts for instruments working in zones 20, 21 and 22. Avoid contact of the apparatus with aggressive substances which could damage the metallic or plastic parts.10.4. After maintenance activityAfter doing any work on the device, check the cover (C) is fully screwed and the security cover screw is well locked (V).11. SPECIAL CONDITIONS OF USE11.1. For Intrinsic Safety and Flameproof It is under the user responsibility to check once a year the gasket and in the event of damage to replace thedefective parts with manufacturer's replacement parts only. For use in dusty hazardous areas, the user will have to proceed to a cleaning regularly the different sides of theenclosure to avoid the deposits of dusts, the maximum thickness must be <5 mm. For safe operation, this canbe done only if the local conditions around the device are free of potentially explosive atmosphere. The user will have to check the temperature increase on the positioner coming from the mechanical part incontact with or through the process thermal radiation be less or equal than the temperature classificationallowed. This must be done in conformance with EN/IEC 60079-14 and / or national and local regulationsapplicable for explosive atmospheres. The user will proceed a cleaning of the device and mainly the plastic label with a wet rag to avoid anyelectrostatic spark. For safe operation, this can be done only if the local conditions around the device are freeof potentially explosive atmosphere.11.2. For Intrinsic Safety The cable entry must have a protection level at least equal to IP54 according to EN/IEC 60529 standards. For the housing with aluminum material, the user will have to determine the use of the device for group IIcategory 1 (zone 0) against potential inflammable source causing by sparks in the event of impact or friction. The current source supply connected on the Model 4000 connectors must be certified for use in group IIC andintrinsic safety loop approved. The entity parameters of the current source supply must be compatible with theentity parameters of the Model 4000 I/P Converter described § 5.3.11.3. For Flameproof For ambient temperature greater than 70°C, the user must choice a cable entry and a cable compatible with:Ambient Temperature Cable and Cable Entry Temperature70 °C 75 °C85 °C 90 °C The cable entry and the cable must be compatible with the minimum temperature of -40°C indicated on themarking plate. The cable entry must have a protection level at least equal to IP66/67.

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