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Brand: VEGA
VEGA VEGAKON 61 Conductive Level Switch Front-Flush
Description
A front-flush conductive switch for full or empty alarms in pipelines
The VEGAKON 61 is a conductive point level switch for conductive liquids, which VEGA recommends as a full or empty alarm in pipelines. When the probe tip is immersed, the electronics detect the product resistance by passing a low alternating current, and convert it into a switching signal; the switching point is defined by mounting position or probe length. The front-flush installation gives optimum cleaning, and VEGA states the probe is non-sensitive to buildup and operates maintenance-free. The sheet covers the transistor (NPN/PNP) version; a relay (DPDT) version is also available.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGAKON 61, conductive point level switch for liquids (front-flush) |
| Conductance of the medium | Minimum 7.5 µS/cm |
| Process fittings | Thread G1, 1 NPT, conus DN 25 |
| Process pressure | -1…+25 bar (-100…+2500 kPa) |
| Process temperature | -40…+150 °C (-40…+302 °F) |
| Ambient, storage, transport | -40…+80 °C (-40…+176 °F) |
| Voltage supply (transistor sheet) | 10…55 V DC |
| Load current / switching voltage | < 400 mA / < 55 V DC |
| Blocking current | < 10 µA |
| Wetted parts | Stainless steel; PTFE isolating ring |
| Housing | Plastic, IP66 |
| Electronics | Transistor (PNP/NPN) or relay (DPDT) |
Conductive principle: limits and advantages
A conductive switch works only if the liquid conducts: VEGA specifies a minimum of 7.5 µS/cm, which covers tap water, process water, acids and most aqueous solutions but excludes demineralised water, oils, solvents and fuels. In return the sensor is robust, front-flush and cheap to clean, with no adjustment against the medium. The mode of the level switch is set on the electronics module, and a signal lamp shows the switching status of the instrument.
Mounting and ordering
The front-flush G1, 1 NPT and conus DN 25 connections suit pipelines and small vessels where a rod would obstruct flow or collect buildup. The VEGAKON family also includes probes with longer electrodes for adjusting the switching height, but the 61 itself is the flush type. State the medium’s conductivity, thread, voltage and output (PNP/NPN or relay) in your RFQ and confirm approvals with the manufacturer, since the sheet refers to the safety instructions for Ex-approved instruments.
Because the electrode is flush with the process connection, the switch is often fitted in horizontal pipes as a dry-run or flow-presence alarm, or high in a small tank as an overfill alarm. Verify that the liquid in your process stays above the conductivity limit at its lowest operating temperature, check the chemical resistance of the wetted parts against the medium, and have both confirmed by the manufacturer before ordering.
Related VEGA products: VEGA VEGAPOINT 31 Capacitive Level Switch for Powders, VEGA VEGASWING 51 Compact Vibrating Level Switch for Liquids, VEGA VEGAPOINT 11 Ultra-Compact Capacitive Level Switch IO-Link, VEGA VEGAPOINT 21 Compact Capacitive Point Level Switch, VEGA VEGAPOINT 23 Capacitive Level Switch with Tube Extension and VEGA VEGAVIB 61 Vibrating Rod Level Switch for Bulk Solids.
Documents and quotation
The official VEGA VEGAKON 61 (transistor NPN/PNP) specification sheet (34712-EN, version 220325) is attached to this page for download and covers the technical data, dimensions and wiring summarised above.
RFQs are welcome with the tag number, medium, process conditions and electrical requirements. Seven Star LLC is an independent supplier based in Muscat and will answer with a quotation; compare alternatives in our level instrumentation section. Ordering details such as configuration, approvals and connection should be confirmed with the manufacturer before purchase.
Datasheets & Documents
- Datasheet VEGA VEGAKON 61 Specification Sheet (34712-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.
FAQ
Questions about the VEGA VEGAKON 61 Conductive Level Switch Front-Flush
Answers from our engineering team on installation, compatibility and integration.
01What does the VEGAKON 61 detect?
Presence of conductive liquids, as a full or empty alarm in pipelines.
02What conductivity is required?
At least 7.5 µS/cm.
03What are the process limits?
-1…+25 bar and -40…+150 °C.
04What fittings are offered?
Thread G1, 1 NPT or conus DN 25.
05What outputs exist?
Transistor (PNP/NPN) or relay (DPDT).
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