VEGAPULS 69 Radar Level Transmitter

Overview

The VEGAPULS 69 is a radar sensor for continuous level measurement of bulk solids, representing the most modern radar level technology for bulk solids industries. Operating at 79-80 GHz frequency with measurement up to 120m, this sensor is capable of measuring poorly reflecting bulk solids over long ranges, in narrow, or even segmented vessels.

Working closely with plant engineers in the region, Seven Star LLC proudly offers the VEGAPULS 69 to building materials, cement, chemical, wastewater management, and recycling facilities across the Sultanate of Oman, Muscat, and the wider GCC. Its non-contact measuring principle ensures high plant availability through wear- and maintenance-free operation, with reliable measurement independent of vapour, dust, and noise even in silos that vent significant airborne particulate during filling.

Measurement Principle

The VEGAPULS 69 emits a continuous radar signal through its antenna, frequency-modulated in the form of a sawtooth wave, which is reflected by the medium and received back by the sensor. Operating with a transmission frequency of approximately 80 GHz and an antenna size of 75mm, the sensor achieves an opening angle of only 4°—compared to roughly 10° for a 26 GHz radar sensor with the same antenna size—delivering significantly better signal focusing.

Because of its large dynamic range of 120dB, the VEGAPULS 69 can measure even the smallest reflections, enabling reliable measurement of poorly reflecting media such as plastic powders, fly ash, dry sawdust, and even polystyrene pellets or aerosil applications. The cycle time is below one second with an accuracy of ±5mm, and because an 80 GHz beam reflects almost exclusively from the measured medium (unlike lower-frequency beams that also reflect from fixtures and vessel internals), false echoes are significantly minimized.

Engineering Design of the VEGAPULS 69

The VEGAPULS 69 can be equipped with an encapsulated plastic (PP) antenna or a metal-jacketed lens antenna integrated into the flange, allowing optimum adaptation to different application areas—from small process fittings for tight spaces to large silos or vessels with many internal installations. The sensor covers process temperatures from -40°C to +200°C and process pressures from -1 to 20 bar, with wetted parts available in 316L stainless steel, PP, or PEEK.

Housing options include plastic, aluminium, and stainless steel (precision cast or electropolished) construction, with protection ratings up to IP66/IP68 (1 bar). Output options span two-wire 4-20mA/HART, four-wire 4-20mA/HART, Profibus PA, Foundation Fieldbus, and Modbus, with adjustment via the PLICSCOM display module, PC-based PACTware/DTM, HART Communicator, or asset management software such as AMS and PDM. An intelligent smartphone app simplifies setup and commissioning, allowing quick and easy alignment of the sensor on its swivelling holder.

Key Features

The VEGAPULS 69 combines high-frequency radar precision with rugged, maintenance-free operation. Core capabilities include:

• 80 GHz transmission frequency with 4° opening angle for superior signal focusing.
• Measuring range up to 120m with ±5mm accuracy and sub-1-second cycle time.
• 120dB dynamic range for measuring even poorly reflecting bulk materials.
• Non-contact, wear- and maintenance-free measuring principle.
• Choice of encapsulated plastic antenna or metal-jacketed lens antenna.
• Process temperature -40°C to +200°C; pressure -1 to 20 bar.
• ATEX, IECEx, FM, CSA, and NEPSI hazardous area approvals.
• Smartphone app for quick alignment and commissioning via swivelling holder.

Industrial Applications

The VEGAPULS 69 is well suited to cement plants, building materials producers, chemical facilities, and recycling operations across Oman requiring reliable continuous level measurement of bulk solids ranging from fine powders to coarse granulates. Its immunity to dust and vessel internals makes it a dependable choice for very high silos, large bunkers, and segmented vessels throughout the region, where a contact-based instrument would otherwise require frequent replacement due to abrasive wear.

Technical Specifications

Full technical parameters for the VEGAPULS 69 radar level transmitter:

Why Choose Seven Star LLC for Bulk Solids Level Measurement

Measuring level in silos and bunkers full of poorly reflecting bulk solids – fine powders, fly ash, plastic pellets – is a genuinely different sourcing problem from liquid level measurement, and getting the antenna type or beam angle wrong on a tall, narrow, or heavily obstructed silo produces unreliable readings that undermine confidence in the whole instrument. Seven Star LLC’s engineers review the vessel geometry, bulk material type, and internal obstructions (ladders, agitators, fill cones) with the customer before the VEGAPULS 69 is ordered, confirming antenna type and beam focusing suit the actual silo rather than assuming a standard configuration will work. We also help plan smartphone-app-assisted commissioning support so technicians at cement plants and recycling facilities across Muscat, Sohar, and Salalah can align the sensor correctly on first installation, avoiding a return site visit.

Request a Quote for VEGAPULS 69 Radar Level Transmitter

To submit a formal Request for Quote (RFQ), check current availability and lead time, or arrange technical consultation for the VEGAPULS 69 Radar Level Transmitter, please contact Seven Star LLC today. With fast quotation turnaround and technical support, our engineers are ready to assist with rapid sourcing for your bulk solids level measurement projects.

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See also: VEGA VEGAPULS 31 Radar Level Sensor with Display.