Specification sheet 4 … 20 mA/HART - two-wire Radar sensor for continuous level measurement of bulk solids Technical data Measuring range up to Process fitting Thread from G1½; 1½ NPT; flanges from DN 40, 1½" Process pressure Process temperature Ambient, storage and transport temperature Operating voltage SIL qualification Application area The VEGAPULS 68 is a radar sensor for continuous measurement of bulk solids also under difficult process conditions and large measuring ranges. The sensor is ideal for level measurement in high silos, large bunkers, stone crushers and in the furnace. The VEGAPULS 68 with different antenna versions and materials is the optimum solution for virtually all applications and processes. Through the wide temperature and pressure range, the sensor can be used universally and enables a simple planning. Your benefit • Maintenance-free operation thanks to non-contact measuring principle • High plant availability, because wear and maintenance free • Reliable measurement independent of steam, dust and noise Function Extremely short microwave pulses are emitted by the antenna system in the direction of the measured product, reflected by the product surface and received back again by the antenna system. The time from emission to reception of the signals is proportional to the level in the vessel. A special time stretching procedure allows reliable and precise measurement of the extremely short signal running times. Materials The wetted parts of the instrument are made of 316L, Alloy C22 (2.4602), Alloy 400 (2.4360), stainless steel precision casting (1.4848) or PTFE, PP, PEEK. The process seal is made of FKM, FFKM or graphite. You will find a complete overview of the available materials and seals in the "Configurator" at www.vega.com and "VEGA Tools". Housing versions The housings are available as single chamber or double chamber version in plastic, stainless steel or aluminium. They are available with protection ratings up to IP 68 (1 bar). Electronics versions The instruments are available in different electronics versions. Apart from 4 … 20 mA/HART in two and four-wire version, there are also digital versions with Profibus PA, Foundation Fieldbus and Modbus protocols. Another HART version is available with integrated accumulator. Supplementary electronics For instruments with double chamber housing two supplementary electronics such as radio module or a power pack are available. Approvals The instruments are suitable for use in hazardous areas and are approved e.g. according to ATEX and IEC. The instruments also have various ship approvals such as e.g. GL, LRS or ABS. You can find detailed information at www.vega.com/downloads and "Approvals". VEGA Grieshaber KG, Am Hohenstein 113,

Specification sheet Dimensions The adjustment of the instrument is carried out via the optional display and adjustment module PLICSCOM or via a PC with the adjustment software PACTware and corresponding DTM. Further adjustment options are possible via a HART Communicator as well as manufacturer-specific programs such as AMS™ or PDM. 1 Threaded version with horn antenna 2 Threaded version with horn antenna and temperature adapter 3 Version with parabolic antenna and swivelling holder Information You can find further information about the VEGA product line on www. vega.com. In the download section...