Vega VEGAPULS 68 Radar Level Sensor

Radar Level Sensor

Specification sheet
VEGAPULS 68
4 … 20 mA/HART - two-wire Radar sensor for continuous level measurement of bulk solids
Technical data Measuring range up to
75 m (246.1 ft)
Process fitting
Thread from G1½; 1½ NPT; flanges from
DN 40, 1½"
Deviation
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.
±2 mm
-1 … +160 bar/-100 … +16000 kPa (-14.5 … +2320 psig) -196 … +450 °C (-321 … +842 °F)
-40 … +80 °C (-40 … +176 °F) 9.6 … 36 V DC
Optionally up to SIL2
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, 77761 Schiltach/Germany, www.vega.com
VEGAPULS 68 - 34528-EN-160119