Vega VEGAPULS 68 Operating Instructions Manual

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Vega VEGAPULS 68 Operating Instructions Manual Manual pdf 15 page image

154 MountingVEGAPULS 68 • HART and accumulator pack40935-EN-181127Metric threadsIn the case of instrument housings with metric thread, the cableglands are screwed in at the factory. They are sealed with plasticplugs as transport protection.You have to remove these plugs before electrical connection.NPT threadIn the case of instrument housings with self-sealing NPT threads, it isnot possible to have the cable entries screwed in at the factory. Thefree openings for the cable glands are therefore covered with red dustprotection caps as transport protection. The dust protection caps donot provide sufficient protection against moisture.Prior to setup you have to replace these protective caps with ap-proved cable glands or close the openings with suitable blind plugs.4.2 Mounting preparationsThe instrument is also available in versions with an antenna whosediameter is larger than the process fitting (thread, flange). In suchcases the antenna must be disconnected from the process fittingbefore mounting.Proceed as follows:1. Loosen the hexagon socket screws (3) on the antenna socketwith an Allen wrench (size 3)2. Remove the antenna (4)Note:The plastic cone may not be pulled out of the antenna socket.3. Insert the antenna from below into the vessel socket and secure itagainst falling off4. Retighten the antenna with hexagon screws to the antennasocket; max. torque see chapter "Technical data"Note:The radar sensor with rinsing air connection or with antenna exten-sion has a notch on the antenna socket for polarization. This notchmust be aligned with the marking on the process fitting.Cable glandsHorn antenna