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Brand: VEGA
VEGA VEGAMIP R61 Microwave Barrier Receiver with T61 Emitter
Description
A non-contact microwave barrier for abrasive solids and high temperatures
The VEGAMIP R61 is the receiving unit of VEGA’s microwave barrier for level detection in bulk solids and liquids; the VEGAMIP T61 is the matching emitting unit. An antenna system focuses the emitted microwave signal towards the receiver, and medium in the beam path damps it. The receiver converts that damping into a switching signal and has built-in sensitivity adjustment to adapt to the medium. VEGA lists silos, bunkers and crushers for bulk solids and pipelines and vessels for liquids as typical applications, and stresses reliable measurement even with very abrasive products because there is no contact with the medium.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGAMIP R61 receiver / VEGAMIP T61 emitter, microwave barrier |
| Process pressure | -1…+4 bar (-100…+400 kPa) |
| Process temperature | -40…+80 °C; with mounting adapter -40…+450 °C |
| Ambient, storage, transport | -40…+80 °C (-40…+176 °F) |
| Hysteresis | Approx. 1.33 dB |
| Process fitting | Thread from G1½; flanges from DN 50 |
| Operating voltage (transistor sheet) | 20…55 V DC; max. 0.8 W |
| Load current / voltage loss | < 400 mA / < 0.5 V |
| Switching voltage / blocking current | < 55 V DC / < 10 µA |
| Wetted parts | 316L and PTFE; optional adapter 316L with Al2O3 ceramic cover |
| Outputs (receiver) | Transistor or relay with two floating SPDT contacts |
| Housing | Plastic, stainless steel or aluminium, up to IP67 |
| Indication | LEDs for status, fault, switching and reception strength; sensitivity and delay keys |
Why a microwave barrier
A barrier measures through the vessel interior between two sensors, so nothing touches the medium and abrasion does no harm; VEGA lists wear-free, maintenance-free operation. The change in damping triggers the switch even if product properties change, and the sensitivity key sets the threshold at commissioning. This approach is chosen for crushers, hoppers, chutes and pipes where rod or fork sensors would wear or jam, and for high-temperature points with the optional adapter up to 450 °C.
Installation and ordering
The emitter and receiver are mounted opposite one another through nozzles or flanges, with PTFE or plastic covers in the beam path. The wiring plans for the emitter and the receiver differ, so order the pair, not just the receiver. Specify temperature, fitting (thread or flange), receiver output (transistor or relay) and voltage, and confirm Ex approval with the manufacturer. The status lamps (green function, yellow switching, red fault, and a yellow reception bar) simplify alignment.
The sheet states a hysteresis of approximately 1.33 dB, which defines how far the received signal must change before the output switches back. Housing options are plastic, stainless steel or aluminium with protection up to IP67, and the stainless fitting with PTFE cover or plastic antenna with PP cover are the two typical mechanical versions, so check which of the two covers suits the product temperature before ordering.
Documents and quotation
The official VEGA VEGAMIP R61/R62/T61 (transistor) specification sheet (45146-EN, version 200522) is attached to this page for download and covers the technical data, dimensions and wiring summarised above. The sheet covers both the emitter and receiver units.
Share the application details with our sales desk in Muscat and we will match them to the right variant and prepare a quote. Seven Star LLC supplies these instruments as an independent company, not as the manufacturer’s agent; see our level instrumentation category for related products. Please confirm approvals, cable length and fitting against the manufacturer’s data before ordering.
Datasheets & Documents
- Datasheet VEGA VEGAMIP R61 Specification Sheet (45146-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 is a VEGAMIP microwave barrier?
A pair of emitter (T61) and receiver (R61) units that detect level when material damps the beam.
What is the temperature range?
-40…+80 °C, or up to +450 °C with the optional mounting adapter.
What outputs does the receiver have?
Transistor, or relay with two floating SPDT contacts.
Does it touch the product?
No, it measures non-contact, which VEGA says gives wear-free operation with abrasive products.
How is sensitivity set?
With keys on the receiver, with LEDs showing reception strength.
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