Brand: ABB

ABB LST200 Ultrasonic Level Transmitter

Name: ABB LST200 Ultrasonic Level Transmitter – Brochure & Quote
Brand: ABB

Description

Overview

The ABB LST200 ultrasonic level transmitter is designed for continuous, non-contact level measurement of liquids in tanks, sumps, basins and open channels, with ranges from 0.35 to 8 m (S06: 0.35-6 m, S08: 0.35-8 m). The sensor emits ultrasonic pulses and measures the time for the echo to return, providing level, distance, volume or flow output through a two-wire 4-20 mA loop. An algorithm with temperature compensation, GAP regulator and noise filter ensures accuracy of +/-3 mm or 0.25% of full span, whichever is larger, with 1 mm resolution.

Engineering and Design

The LST200 is loop powered from 15 to 30 V DC (19-30 V DC for the LCD version) with very low power consumption of 60 to 600 mW, and the output is fully compensated for temperature effects on the speed of sound. The optional integrated LCD display shows a percentage bargraph, real-time waveform and diagnostics messages, with simplified two-button programming and an easy setup menu. Enclosure and sensing element are polycarbonate with IP66/67 protection (IP68 up to 2 m for 24 hours), and the transmitter operates from -30 to 60 C.

The sensor handles pressures from -0.25 to 3.0 bar (-4 to 44 psi) and relative humidity up to 100%, with vibration and shock resistance verified to IEC 60068-2-64 and IEC 60068-2-27. The process connection is an M56 x 3.0 thread with an M20 x 1.5 cable entry, and the device supports blanking and echo-processing features for applications involving bulk material, heavy vapor, dust, turbulence or foam (consult ABB for range reduction). The LST200 is also suitable for open-channel flow measurement with a user-selected flow table. Seven Star LLC supplies both the S06 (0.35–6 m) and S08 (0.35–8 m) range variants as a trusted supplier of ABB products across Oman and the GCC, sizing the model, mounting bracket, and cable length to the customer’s actual tank height and installation geometry before shipment.

Operating Principle

The transmitter’s transducer emits a short burst of ultrasonic energy toward the liquid surface and precisely times the round-trip echo return; the built-in GAP (Gain-Adjustment Profile) regulator and adaptive noise filter distinguish the true liquid-surface echo from false reflections caused by agitator turbulence, foam, condensation, or structural obstructions inside the vessel. Because the measurement is entirely non-contact, the LST200 avoids the fouling, coating, and mechanical-wear failure modes that affect float- or displacer-based level instruments, and requires no process penetration below the liquid surface.

Key Features

Non-contact ultrasonic measurement with range up to 8 m (0.35-8 m)
Accuracy +/- 3 mm or 0.25% of span (whichever is larger) with 1 mm resolution
Loop powered two-wire 4-20 mA output, 60-600 mW consumption
Temperature compensation, GAP regulator and noise filter for stable readings
Optional LCD with backlight, bargraph, real-time waveform and diagnostics messages
Simplified two-button programming with setup menu in English and Chinese
IP66/67 protection (IP68 up to 2 m for 24 h) in polycarbonate housing
Operating temperature -30 to 60 C and humidity up to 100%
Level, distance, volume and open-channel flow measurement in one device
Sensor pressure range -0.25 to 3.0 bar with anti-condensation sensor option

Applications

Level measurement of water, wastewater, chemicals and other liquids in tanks, sumps, reservoirs and basins, plus open-channel flow measurement in flumes and weirs for water and wastewater networks. Seven Star LLC supplies the LST200 into municipal water and wastewater treatment plants, industrial process tanks, and stormwater and irrigation channels across Muscat, Sohar, Salalah, and the wider GCC, where its two-wire loop power and simple mounting keep installation cost low on both new and retrofit projects. The built-in open-channel flow table option lets a single instrument serve as both a level transmitter and a flow monitor on flume- or weir-based measurement points, avoiding the cost of a separate dedicated flow meter where the application allows it.

Specifications

Measurement range	0.35-6 m (S06) or 0.35-8 m (S08), depending on process conditions
Accuracy	+/- 3 mm or 0.25% of full span (whichever is larger)
Resolution	1 mm
Beam angle	10 deg (@ -3 dB, full angle)
Update time	2 s
Power supply	LST200-Basic 15-30 V DC; LST200-LCD 19-30 V DC (ripple max 5%)
Power consumption	60 to 600 mW
Output	Two-wire 4-20 mA (level/distance/volume/flow), temperature compensated
Display	Optional LCD, blue backlight, 6 mm digits, percentage bargraph
Enclosure	Polycarbonate, IP66/67 (IP68 up to 2 m for 24 h)
Operating temperature	-30 to 60 C (-20 to 60 C for display)
Humidity	Up to 100% relative humidity
Sensor pressure	-0.25 to 3.0 bar (-4 to 44 psi)
Process connection	M56 x 3.0 thread, 35 mm length; cable entry M20 x 1.5
EMC	IEC 61326-1 Table 2, CISPR Class B
Approvals	General purpose (CE); explosion protection options per ordering code

Why Seven Star LLC

Seven Star LLC supplies ABB ultrasonic and radar level instruments with verified specifications across Oman and the GCC. Our team helps you select the right range, display option and mounting arrangement for tanks, sumps and open channels, and can advise when blanking or echo-processing adjustments are needed for bulk material, heavy vapor, dust, turbulence, or foam conditions in the specific vessel.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation.

Request a Quote for ABB LST200 Ultrasonic Level Transmitter

Send your tank height, product type and output requirements to our engineering team for a quotation. Use the Inquiry Form below – we confirm the LST200 model, display and pricing for your project. | Inquiry Form

Where the ABB LST200 ultrasonic level transmitter is used

Liquid storage tanks
Sumps
Basins
Open channels
Water and wastewater duty

Selection checklist for the ABB LST200 ultrasonic level transmitter

Tank height
Range variant
Display needs
Loop supply
Process connection
Mounting bracket
Cable length
Foam, dust or vapor

Installation, commissioning and maintenance notes for the ABB LST200 ultrasonic level transmitter

Mount the transmitter above the liquid with a clear view of the surface. Wire the two-wire loop and set the empty and full levels. Check the sensor face and the readings at regular intervals.

Requesting a quotation for the ABB LST200 ultrasonic level transmitter

Please send the tank height, the liquid and the mounting details. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

LST200 transmitter type

It is an ultrasonic level transmitter.

LST200 maker

It is made by ABB.

LST200 measurement

It measures level continuously without contact.

LST200 liquids

It is designed for liquids in tanks, sumps, basins and open channels.

LST200 variants

It comes as the S06 variant and the S08 variant with different ranges.

LST200 echo principle

The sensor sends ultrasonic pulses and measures the time for the echo to return.

LST200 outputs

It gives level, distance, volume or flow output.

LST200 loop

The output goes through a two-wire 4-20 mA loop.

LST200 compensation

The output is compensated for the effect of temperature on the speed of sound.

LST200 algorithm

An algorithm with a GAP regulator and a noise filter supports stable readings.

LST200 power

It is loop powered with very low power consumption.

LST200 display

An optional integrated LCD display shows a percentage bargraph, a real-time waveform and diagnostic messages.

LST200 programming

Two-button programming and an easy setup menu keep commissioning simple.

LST200 body

The enclosure and the sensing element are polycarbonate.

LST200 connections

The process connection is an M56 thread and the cable entry is M20.

LST200 echo processing

Blanking and echo processing features help with bulk material, heavy vapor, dust, turbulence or foam.

LST200 open channels

It also suits open-channel flow measurement with a user-selected flow table.

LST200 sizing

Seven Star LLC sizes the model, the mounting bracket and the cable length to the tank height and the installation.

LST200 documentation

Manufacturer documentation is supplied with a quotation.

LST200 support

Seven Star LLC gives local technical support with selection.

Level records for the ABB LST200 ultrasonic level transmitter

Record the empty and full settings, the readings and the date of each check.

Choosing the right ABB LST200 ultrasonic level transmitter range

Choose the S06 or S08 variant from the tank height and the installation.

Datasheets & Documents

Brochure ABB LST200 Ultrasonic Level Transmitter Catalog Download

Reviews (0)

Reviews

There are no reviews yet.

How would you rate this product?

About brand

ABB is the Swiss-Swedish engineering group for electrification and automation: low voltage drives, motors, circuit breakers and motor control, process instruments and analysers, control systems and robots. It was formed on 5 January 1988 by the merger of two older companies. ASEA was founded in Västerås, Sweden, in 1883 by Ludvig Fredholm to make electric lighting and generators. BBC Brown Boveri was founded in Baden near Zurich in 1891 by Charles E. L. Brown and Walter Boveri. ABB Ltd is incorporated in Switzerland, headquartered in Zurich and listed on the SIX Swiss Exchange and Nasdaq Stockholm.

ABB company profile

Formed	5 January 1988, by the merger of ASEA (Sweden) and BBC Brown Boveri (Switzerland), each holding 50%
ASEA	Founded 1883 in Västerås, Sweden, by Ludvig Fredholm; first products electric lighting and generators
Brown, Boveri & Cie	Founded 1891 in Baden, Switzerland, by Charles E. L. Brown and Walter Boveri
Headquarters	Zurich, Switzerland; ABB Ltd became the group holding company in 1999
Ownership	Public company listed on SIX Swiss Exchange and Nasdaq Stockholm
Brands in the group	Baldor (US motors, acquired 2011), B&R (machine automation, acquired 2017), K-TEK level instruments, Endura and Navigator analysers, SACE breakers
Product families	Low and medium voltage drives (ACS series), motors, SACE Tmax and Emax breakers, contactors and soft starters, flow, pressure, temperature and level instruments, liquid and gas analysers, Contrac actuators, AC500 PLCs, Ability System 800xA and S800 I/O, protection relays, robots

Milestones

1883: ASEA is founded in Västerås, Sweden.
1891: Brown, Boveri & Cie is founded in Baden, Switzerland.
1987–1988: The merger is announced on 10 August 1987; ABB Asea Brown Boveri starts operating on 5 January 1988.
1999: ABB Ltd, incorporated in Switzerland, becomes the single holding company of the group.
2011 and 2017: Baldor Electric and B&R join ABB.
2020: ABB sells its power grids business to Hitachi, focusing on electrification, motion, process and machine automation.

Choosing an ABB drive

ABB's ACS drive codes are easy to read once you know the pattern. In ACS580-01-046A-4, "ACS580" is the drive family, "01" means a wall-mounted single drive, "046A" is the rated output current (about 46 A) and "-4" means a 380–480 V supply. The family is chosen by application: ACS355 for compact machinery, ACS310 for simple pumps and fans, ACS580 as the general-purpose drive, ACQ580 for water and wastewater with pump functions such as pipe fill and dry-run protection, and ACS880 for heavy industrial duty with direct torque control. Size the drive on the motor's full-load current, not only its kW rating, and allow derating for the high ambient temperatures common in Gulf electrical rooms.

Where ABB products are used

In Oman and the GCC, ABB drives and motors run pumps, fans and compressors in water and wastewater plants, district cooling, oil and gas and industry. ABB flowmeters, level instruments and analysers are used in water utilities, power and desalination plants and refineries, and SACE breakers protect switchboards in buildings and plants.

ABB products we list

Family	Examples
AC drives	ACS580, ACS580-01-046A-4, ACQ580, ACS355, ACS310, ACS880-01, FEN-31 encoder module
Breakers, motor control and protection	SACE Tmax XT, XT3N 250, SACE Emax 2, AF09 contactor, PSR soft starter, REM615 relay
Flow measurement	ProcessMaster FEP300, AquaMaster4, CoriolisMaster FCB430, VortexMaster FSV430, SwirlMaster FSS430, OriMaster FPD500
Pressure, temperature and level	266DRH, 267CS multivariable, TTH300, K-TEK AT100, LMT200, MT5000 GWR, KM26 gauge
Analysers	Endura AZ20, AK100 hydrogen purity, Navigator AW641 silica, AW402 chlorine, AWT210
Control systems and actuators	AC500, AC500-S, S800 AI810, AC 800F SA 811F, Contrac RSD50, Contrac RHD4000

Ordering ABB products: what we need

Send the full type code from the nameplate (for example ACS580-01-046A-4 or 266DSH...) and, for spare parts, the ABB ID number (such as 3BSE008508R1 or 1SBL176001R3010). For drives, add the motor power and current and any option codes (+...). For instruments, send the complete order code, which sets range, materials and approvals. Baldor motors are listed on their own brand page.

Facts checked against ABB company filings and published histories of ASEA and Brown, Boveri & Cie, October 2026.

FAQ

Questions about the ABB LST200 Ultrasonic Level Transmitter

Answers from our engineering team on installation, compatibility and integration.

01What is the range of the ABB LST200?

The ultrasonic level transmitter covers 0.35 to 6 m (S06 sensor) or 0.35 to 8 m (S08 sensor), depending on process conditions.

02What accuracy does the LST200 provide?

Accuracy is +/- 3 mm or 0.25% of full span (whichever is larger) with 1 mm resolution, supported by temperature compensation, a GAP regulator and a noise filter.

03How is the LST200 powered?

It is loop powered: 15-30 V DC for the basic version and 19-30 V DC for the LCD version, with very low consumption of 60 to 600 mW.

04Is the LST200 suitable for open-channel flow?

Yes. The 4-20 mA output can be configured for level, distance, volume or flow, making it suitable for open-channel flow measurement in flumes and weirs.

05What enclosure rating does the LST200 have?

IP66/67 per EN 60529 in a polycarbonate housing (IP68 up to 2 m for 24 hours), operating from -30 to 60 C with humidity up to 100%.