2.6 Fulfilling NAMUR recommendationsWith regard to interference resistance and interferenceemission, VEGAFLEX 67 fulfils NAMUR recommendationNE 21.VEGAFLEX 67 and its indicating and adjustment componentsfulfill NAMUR recommendation NE 53 in respect to compat-ibility. VEGA instruments are generally upward and downwardcompatible:l Sensor software to DTM VEGAFLEX 67 HART, PA or FFl DTM VEGAFLEX 67 for adjustment software PACTware™l Indicating and adjustment module for sensor softwareThe parameter adjustment of the basic sensor functions isindependent of the software version. The range of availablefunctions depends on the respective software version of theindividual components.The software version of VEGAFLEX 67 can be determined asfollows:l via PACTware™l on the type label of the electronicsl via the indicating and adjustment moduleYou can view all software histories on our website www.vega.com. Make use of this advantage and get registered for updateinformation via e-mail.2.7 Safety instructions for Ex areasPlease note the Ex-specific safety information for installationand operation in Ex areas. These safety instructions are part ofthe operating instructions manual and come with the Ex-approved instruments.2.8 Manufacturer declarationIn conformity with DIN EN 60079-14/1998, para. 5.2.3, pointc1, the probe VEGAFLEX 67 is suitable for use in zone 2.The operator must use the instrument as it was intended to beused and follow the specifications of the following documents:l this operating instructions manuall this manufacturer declaration (24628)l the applicable installation regulations6 VEGAFLEX 67 - Profibus PAFor your safety32768-EN-061227