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Brand: VEGA
VEGA VEGAVIB 61 Vibrating Rod Level Switch for Bulk Solids
Description
A smooth vibrating rod that granules cannot jam
The VEGAVIB 61 is VEGA’s compact vibrating rod level switch for granular and coarse-grained bulk solids. A piezo drive excites a stainless-steel rod to resonance; when product covers the rod, the amplitude is damped and the electronics switch. VEGA points out that the smooth, cylindrical rod without corners or edges avoids jamming of the bulk solid and cleans easily, and that the sensor need not be oriented when mounted. It detects minimum or maximum level reliably, needs no setup with medium and, according to the product information, is virtually unaffected by product properties so it does not have to be adjusted.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGAVIB 61, vibrating rod level switch for granulated bulk solids |
| Process pressure | -1…+16 bar (-100…+1600 kPa) |
| Process temperature | -50…+250 °C with temperature adapter (-50…+150 °C standard) |
| Density | > 0.02 g/cm³ |
| Ambient temperature | -40…+80 °C |
| Hysteresis | Approx. 2 mm with vertical installation |
| Process fitting | Threads from G1, 1 NPT; flanges from DN 32 / 1½”; hygienic fittings |
| Operating voltage (transistor sheet) | 10…55 V DC; max. 0.5 W |
| Switching delay | 0.5 s when covered, 1 s when uncovered |
| SIL qualification | Optionally up to SIL2 |
| Materials | 316L wetted parts; Klingersil C-4400 seal |
| Housing | Plastic, stainless steel or aluminium housing, up to IP67 |
| Electronics | Transistor NPN/PNP, contactless switch, relay, two-wire for signal conditioner, NAMUR |
Rod or fork for solids
VEGA’s selection text compares the two ranges: VEGAVIB rods have smaller installation dimensions, with threads from 1″, and no granules stick to the cylindrical rod; VEGAWAVE tuning forks are rugged and insensitive to buildup and detect lighter powders from 0.008 g/cm³. The VEGAVIB 61 detects solids from 0.02 g/cm³, so very light dusts below that density are a job for a VEGAWAVE instead. The standard housing, the PLICSLED status display module and plug connectors such as ISO 4400, M12 x 1, Harting HAN 7D/8D and Amphenol-Tuchel are listed accessories.
Mounting in silos
Install the compact rod through the silo wall at the height of the desired limit point. A weather protective cover can be snapped onto the housing against pollution and strong sun. For longer reach into a silo, move to the cable (VEGAVIB 62) or tube (VEGAVIB 63) version. Tell us the product, bulk density, temperature, thread or flange and output so we can offer the correct variant, and confirm SIL and Ex approvals with the manufacturer.
The product information also describes the electronics options in detail: a relay output for direct control of a feeder or alarm, a transistor output for PLC inputs, a contactless electronic switch for AC or DC loads, a two-wire version for connection to a signal conditioning instrument and a NAMUR version for intrinsically safe isolators. The sheet shows a switching delay of 0.5 s when covered and 1 s when uncovered, so brief splashes or falling product do not trigger the output.
Documents and quotation
The official VEGA VEGAVIB 61 (transistor NPN/PNP) specification sheet (34632-EN, version 151205) is attached to this page for download and covers the technical data, dimensions and wiring summarised above.
Send Seven Star LLC your tag list, process medium, vessel geometry, required approvals and quantity and we will prepare a quotation from our Muscat office. We are an independent supplier; more level instrumentation is listed on our site. Confirm the final order code and approval marking with the manufacturer before ordering.
Datasheets & Documents
- Datasheet VEGA VEGAVIB 61 Specification Sheet (34632-EN) Download
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About brand
VEGA is a German maker of level and pressure instruments. Bruno Grieshaber founded the company in 1959 in Triberg in the Black Forest, and it has been based in Schiltach since 1975, still family owned as VEGA Grieshaber KG. VEGA is best known for radar level sensors: it introduced the first two-wire radar level sensor in 1997 and the first 80 GHz radar sensor for bulk solids, the VEGAPULS 69, in 2015.
Seven Star LLC is an independent supplier listing VEGA radar and guided wave radar transmitters, point level switches, pressure transmitters and signal conditioning instruments for buyers in Oman and the GCC. Sensors are matched from the product code on the type label.
VEGA at a glance
| Origin | Founded by Bruno Grieshaber in 1959 in Triberg, Germany |
|---|---|
| Headquarters | Schiltach, Black Forest, Germany (since 1975) |
| Ownership | Family-owned company: VEGA Grieshaber KG |
| Milestones | First two-wire radar level sensor (1997), first 80 GHz radar for bulk solids, VEGAPULS 69 (2015), VEGAPULS 6X single radar platform for liquids and solids |
| Product families | VEGAPULS radar, VEGAFLEX guided wave radar, VEGASWING and VEGAPOINT switches, VEGACAL capacitive probes, VEGABAR and VEGADIF pressure, VEGAMET and VEGADIS signal conditioning |
VEGA sensor and instrument series
| Series | Type | Typical use |
|---|---|---|
| VEGAPULS 6X, VEGAPULS 69, VEGAPULS 64 | Process radar level transmitters (80 GHz) | Storage and process tanks, reactors with agitators, silos and bulk solids |
| VEGAPULS 11, 21, 31, 42 | Compact radar sensors | Water and wastewater, simple storage tanks; VEGAPULS 42 with IO-Link for machine integration |
| VEGAPULS C 21, C 11, C 22, C 23 | Radar sensors with fixed cable, IP68 | Wet wells, pumping stations, open channels and river levels |
| VEGAFLEX 81, 82, 83, 86 | Guided wave radar (TDR) | Level and interface in liquids, bulk solids, hygienic and high-temperature or high-pressure service (VEGAFLEX 86) |
| VEGASWING 61, 63, VEGAPOINT 21 | Vibrating and capacitive point level switches | Overfill protection, dry-run protection and high or low level alarms |
| VEGACAL 62 to VEGACAL 67 | Capacitive rod and cable probes | Point and continuous level in solids and conductive or adhesive liquids |
| VEGABAR 82, 83, 28, 29, 38 | Pressure transmitters, ceramic or metallic cell | Process pressure and hydrostatic level; compact 18/19 and 28/29/38 versions for utilities |
| VEGADIF 85 | Differential pressure transmitter | DP flow, filter monitoring and level in pressurised vessels |
| VEGAMET 841, VEGADIS 176 | Controller and loop display | Level display, pump control and remote indication of 4-20 mA signals |
Where VEGA instruments are used
VEGA radar sensors measure level in crude oil and product tanks, separators, chemical reactors, cement and aggregate silos, grain stores and water reservoirs. Compact cable radars are widely used in wastewater pumping stations and flood monitoring. Because 80 GHz radar focuses a narrow beam, it can measure past internal structures in a tank, and it is not affected by the temperature, pressure or vapour above the product, which suits hot Gulf storage tanks.
Ordering VEGA instruments: what we need
The product code on the type label (for example PS64.XXXXXXX) fixes the measuring range, antenna or probe, process connection, electronics and approvals. Send it with the serial number. For a new measurement add the medium and its dielectric constant if known, tank or silo height and internals, process pressure and temperature, process connection, output (4-20 mA HART, PROFIBUS PA, Modbus or IO-Link), and any hazardous-area or overfill protection approval required.
Facts checked against VEGA company and product information, October 2026.
Browse VEGA products by category: Level Transmitter, Pressure Instrumentation, Controllers and Data Acquisition.
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Frequently Asked Questions
What does the VEGAVIB 61 detect?
Minimum or maximum level of granular and coarse-grained bulk solids with a vibrating rod.
What is the lowest density it can detect?
Above 0.02 g/cm³.
What temperature and pressure limits apply?
-50…+250 °C with temperature adapter and -1…+16 bar.
Does it need adjusting?
VEGA states it is virtually unaffected by product properties and does not have to be adjusted.
Is a SIL version available?
The sheet lists optional SIL2 qualification.
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