ABB-Compact ultrasonic level transmitter LST300
Overview
The ABB LST300 is a compact ultrasonic level transmitter designed as a space-saving solution for accurate, non-contact level measurement in both liquids and solids. Offered in two sensor ranges – C06 covering 0.25 to 6.00 m and C10 covering 0.35 to 10.00 m – the LST300 is purpose-built for tanks, silos, sumps, and open channels where installation space is limited but measurement performance cannot be compromised.
Seven Star LLC supplies the ABB LST300 to water treatment, chemical processing, and food production operators across Oman and the wider GCC as an authorized partner for genuine ABB instrumentation. Every unit is sourced through ABB’s official channel, supported by manufacturer documentation and warranty, and backed locally with installation guidance for space-constrained sites.
Operating Principle
The LST300 sends acoustic pulses to the surface of the medium and measures the time it takes for the echo to return, converting that time-of-flight into a level reading. This non-contact measurement method ensures accuracy of ±2 mm or 0.20% of full span (whichever is larger), with repeatability rated at ±0.20% of the measurement range, without interference from dust, vapors, or temperature variations that would degrade a contact-based sensor’s performance.
An intelligent echo-processing algorithm enhances reliability in difficult applications, whether monitoring liquid levels in chemical tanks or bulk solids in storage silos, delivering consistent and dependable results despite the sensor’s smaller physical footprint compared to ABB’s longer-range LST400. The C10 sensor’s market-leading 5° beam angle (versus 7° on the C06) focuses more of the acoustic energy directly at the target surface, reducing false echoes from tank walls, ladders, or internal structures on taller or narrower vessels.
Engineering Design of the ABB LST300
Built for harsh industrial conditions, the LST300 features a rugged enclosure rated IP66/67/68 and NEMA 4X, with full submersion capability to 2 metres for 24 hours, and is resistant to corrosion and ingress. Its compact form factor allows easy integration into existing installations, reducing both installation time and space requirements – a key advantage where retrofit projects have limited mounting space for a level instrument. The transmitter is powered from 16 to 42 V DC (limited to 30 V DC maximum for intrinsically safe applications) with reversed-polarity protection, operates across a wide −40°C to 85°C temperature range, and is rated for process pressures from −0.25 to 3.00 bar (−4 to 44 psi).
Process connection is via a universal 38 mm (1½ inch) or 51 mm (2 inch) thread compatible with both NPT and BSP standards, simplifying retrofit into existing tank nozzles regardless of the original fitting standard. The transmitter supports both analog 4–20 mA and HART digital communication, offering full compatibility with modern control systems, and its intuitive setup interface and diagnostic features enable quick configuration and ongoing monitoring, minimizing downtime and maintenance.
Key Features
- Compact, space-saving ultrasonic level transmitter in two range options: C06 (0.25–6.00 m) and C10 (0.35–10.00 m)
- Accuracy of ±2 mm or 0.20% of full span, whichever is larger, with ±0.20% repeatability
- Non-contact measurement, unaffected by dust, vapor, or temperature variation
- Intelligent echo processing algorithm for difficult applications
- Market-leading 5° beam angle on the C10 sensor for improved target focus
- IP66/67/68 and NEMA 4X-rated rugged enclosure, submersible to 2 m for 24 hours
- Wide power input (16–42 V DC) and operating temperature range (−40°C to 85°C)
- Universal 38 mm or 51 mm process thread compatible with NPT and BSP
- Analog 4–20 mA and HART digital communication
- Suitable for both liquids and bulk solids, with easy retrofit integration into existing installations
Industrial Applications
The LST300 is ideal for tanks, silos, sumps, and open channels where space is limited, across chemical tanks and bulk solids storage silos in water treatment, chemical processing, and food production applications – particularly retrofit projects where a compact form factor and universal thread connection simplify installation without re-engineering the tank nozzle.
Across Oman’s water treatment and food processing sectors, and throughout the wider GCC, Seven Star LLC supplies the LST300 as an authorized ABB partner to facilities in Muscat, Sohar, and Salalah that require dependable, factory-genuine compact ultrasonic level transmitters with full local support, correctly sized between the C06 and C10 range options to the customer’s actual tank height.
Technical Specifications
Key technical specifications for the ABB LST300 compact ultrasonic level transmitter are summarized below; contact Seven Star LLC for the full data sheet and model-specific ordering information.
| Parameter | Specification |
|---|---|
| Model | ABB LST300 |
| Measurement Type | Ultrasonic, non-contact, compact |
| Measurement Range | 0.25–6.00 m (C06) or 0.35–10.00 m (C10) |
| Accuracy | ±2 mm or 0.20% of full span (larger of the two) |
| Repeatability | ±0.20% of measurement range |
| Beam Angle | 7° (C06) or 5° (C10) |
| Media | Liquids and solids |
| Power Supply | 16–42 V DC (30 V DC max for IS applications) |
| Operating Temperature | −40°C to 85°C |
| Pressure Range | −0.25 to 3.00 bar (−4 to 44 psi) |
| Process Connection | 38 mm (1½ in.) or 51 mm (2 in.) universal thread, NPT/BSP |
| Enclosure Rating | IP66/67/68, NEMA 4X; submersible to 2 m for 24 h |
| Outputs | 4–20 mA analog with HART digital communication |
Request a Quote for ABB-Compact ultrasonic level transmitter LST300
Contact Seven Star LLC for a quotation on the ABB LST300 compact ultrasonic level transmitter, backed by authorized ABB supply, genuine documentation, and local support across Oman and the GCC.
Related Products
ABB is one of the world’s leading technology companies in electrification and automation, recognized for its commitment to innovation, reliability, and energy efficiency. With a history spanning more than a century, ABB delivers high-performance products and systems that help industries operate more intelligently and sustainably.
The company’s expertise covers a wide range of fields including power distribution, process automation, robotics, motion control, and digital solutions for smart manufacturing. ABB’s products are designed to enhance productivity, safety, and operational efficiency while reducing energy consumption and environmental impact.
Seven Star LLC supplies a complete selection of genuine ABB products, including industrial drives, PLCs, contactors, sensors, relays, and automation components, serving clients across oil & gas, energy, marine, and manufacturing sectors.
By combining ABB’s advanced engineering with Seven Star LLC’s trusted sourcing and support, customers gain access to reliable, future-ready industrial solutions built to meet the most demanding standards of modern industries.
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