Contents About this document ....................... 4 Function ........................... 4 Target group ........................4 Symbols used........................4 For your safety ......................... 5 Authorised personnel ....................... 5 Appropriate use ........................ 5 Warning about incorrect use ..................... 5 General safety instructions ....................5 Product description .........................
About this document Function This operating instructions manual provides all the information you need for mounting, connection and setup as well as important instructions for maintenance, fault rectification, the exchange of parts and the safety of the user. Please read this information before putting the instrument into operation and keep this manual accessible in the immediate vicinity of the device.
For your safety Authorised personnel All operations described in this documentation must be carried out only by trained specialist personnel authorised by the plant operator. During work on and with the device the required personal protective equipment must always be worn. Appropriate use Arretierverschraubung is used for infinitely variable locking of sensors with tube extension.
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reasons, only the accessory specified by the manufacturer must be used. To avoid any danger, the safety approval markings and safety tips on the device must also be observed and their meaning read in this oper- ating instructions manual. Lock fitting - Operating Instructions MAN-100057...
Arretierverschraubung is a pressure-tight threaded fitting up to 16 bar (232 psig) and can be used together with a level sensor in tube ver- sion (SITRANS LVL200E). The tube version of the sensor must have a diameter of 21.3 mm (0.84 in).
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• Dry and dust free • Not exposed to corrosive media • Protected against solar radiation • Avoiding mechanical shock and vibration • Storage and transport Storage and transport temperature see chapter "Supplement - temperature Technical data - Ambient conditions" •...
Mounting General instructions The note of the following general safety instructions: • Dismount the lock fitting only in unpressurized condition • Use only suitable graphite gasket rings. Make sure that the graph- ite gasket rings are not damage. Damaged rings are no longer tight.
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Fig. 1: Arretierverschraubung - up to 16 bar (232 psig) Clamp Spring ring B6 Terminal screw M6 x 25 Locking angle Spring ring B4 Fixing screw M4 x 10 Mounting boss Layer packing ring Graphite packing ring 10 Pressure ring 11 Pressure screw Lock fitting - Operating Instructions MAN-100057...
5 Maintenance and fault rectification Maintenance If the device is used properly, no special maintenance is required in normal operation. Exchange seals If you want to loosen the lock fitting, e.g. to change the switching point, you have to exchange the graphite gasket rings. The numbers in brackets refer to the illustration under "Mounting".
Hence the pressure screw and the terminal screw are secured against unintentional loosening How to proceed if a repair is necessary If it is necessary to repair the instrument, please con- tact Siemens. You find the locations on our homepage "www.siemens.com/processautomation". Lock fitting - Operating Instructions MAN-100057...
Dismount Dismounting steps Note chapter "Mounting" and carry out the described steps in reverse order. Warning: If you want to remove the lock fitting for service or control purposes, make sure that the vessel is unpressurised. If you proceed as follows, it is not necessary to readjust the switching point and the lock fittings must not be dismounted completely.
Supplement Technical data General data Material 316L corresponds to 1.4404 or 1.4435 Process fittings Ʋ Pipe thread, cylindrical (DIN 3852-A) G1, G1½ Ʋ Pipe thread, conical (ASME B1.20.1) 1 NPT, 1½ NPT Tube diameter of the sensor ø 21.3 mm (0.84 in) according to DIN 2463/2462 D4-T3 Min.