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Brand: VEGA
VEGA VEGAPOINT 31 Capacitive Level Switch for Powders
Description
A compact capacitive switch tuned for light, powdery bulk solids
The VEGAPOINT 31 is the bulk-solids version of the capacitive VEGAPOINT family. VEGA describes it as a capacitive level sensor for fine-grained and powdery bulk solids, optimised for light powdered materials, with overfill and dry-run protection as typical applications. It is a very small sensor: the sheet shows a 36 mm hexagon, 27 mm diameter body and 114 mm overall height, and it can be installed in thin pipelines. Setup is by Bluetooth, and the sheet covers the transistor (PNP/NPN) version with a 12…35 V DC supply.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGAPOINT 31, capacitive point level switch for fine-grained and powdery bulk solids |
| Output signal | Transistor (PNP/NPN); IO-Link version also offered |
| Process fitting | Thread G½, G¾, G1, M24 x 1.5; ½ NPT, ¾ NPT, 1 NPT; hygienic fittings |
| Process pressure | -1…25 bar (-100…2500 kPa) |
| Process temperature | -40…+115 °C (-40…+239 °F); +135 °C for 1 h |
| Ambient temperature | -40…+70 °C (-40…+158 °F) |
| Operating voltage | 12…35 V DC |
| Wetted parts | PEEK and stainless steel 316L; FKM seal |
| Housing | Stainless steel 316L or Valox; IP66/IP67 and up to IP69 |
| Dimensions (sheet drawing) | Body diameter 27 mm, hexagon 36 mm across flats, height 114 mm |
| Adjustment | Bluetooth (integrated) |
| Approvals (product information) | ATEX, IEC, cCSAus, EG 1935/2004, FDA, EHEDG, ADI, ship approval |
Why a dedicated powder version
Light powders such as flour, starch or plastic dust have low dielectric constants, so the electronics of a water-oriented sensor would barely see a change. VEGA states that the VEGAPOINT 31 is optimised for light powdered materials. The sheet gives the same housing and thread options as the other VEGAPOINTs, so the same cable gland, M12 plug and adapters can be used across a plant. In the product information the 31 is the only member with ATEX, IEC, cCSAus and ship approvals listed together.
Mounting and setup
Use the Bluetooth app to set sensitivity at the actual powder rather than by water, since the sensor responds to the product’s dielectric properties. Install it where the powder flows past the tip, not in a dead zone, and mount threads with the appropriate seal. Quote the powder, bulk density, temperature, thread and output (PNP/NPN or IO-Link) in the RFQ, and have the Ex approval confirmed with VEGA before ordering for dust-hazard areas.
The sheet also shows the electrical wiring for the M12 plug with a PNP or NPN transistor and the connection options, and VEGA’s approvals list for the family refers to ATEX, EG 1935/2004, FDA, EHEDG and ship approvals. The 25 bar pressure rating and the process temperature of -40 to +115 °C (short excursions to +135 °C for one hour) cover most dry-process equipment, though hot-gas filters and dryers should be checked against the figure.
Documents and quotation
The official VEGA VEGAPOINT 31 (transistor PNP/NPN) specification sheet (62538-EN, version 260928) 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 VEGAPOINT 31 Specification Sheet (62538-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 VEGAPOINT 31 detect?
Fine-grained and powdery bulk solids, optimised for light powders.
How big is the sensor?
About 27 mm diameter with a 36 mm hexagon and 114 mm height, per the sheet drawing.
What are the process limits?
-1…25 bar and -40…+115 °C.
How is it adjusted?
Wirelessly via Bluetooth with a smartphone, tablet or PC.
What outputs exist?
Transistor PNP/NPN, and a transistor version with IO-Link.
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