ABB LT2005-S/SP19

1. Overview

The ABB LT2005-S/SP19 belongs to ABB LT series guided wave radar level measurement instruments, adopting time-domain reflectometry (TDR) radar principle for contact-type continuous liquid level detection. It eliminates measurement errors caused by foam, steam, uneven liquid surface and medium dielectric changes that trouble non-contact radar sensors. The unit supports a broad measuring range and works with water, oil, chemical solvents and weakly corrosive liquids. Equipped with standard 4–20mA two-wire loop power plus HART digital communication, it seamlessly connects to AC800M DCS, PLC and SCADA monitoring platforms for real-time liquid level tracking, high/low level interlock and tank inventory statistics. With IP66/67 full sealed housing and optional 316L stainless steel probe, it withstands dust, water splash and mild chemical vapor, stable for 24/7 round-the-clock industrial operation within -20℃ to +70℃ working temperature range.

2. Technical Specifications

3. Key Features

TDR Guided Wave Anti-Interference Measurement: Stable reading even with surface foam, steam and turbulent liquid surfaces, avoids false level signals. Universal 4-20mA+HART Dual Signal: Supports both analog control and digital remote parameter calibration without extra wiring. Industrial Anti-Corrosion Stainless Steel Probe: Adapts to most industrial liquid media, extends service life in chemical workshop environments. Wide Temperature & Humidity Adaptability: Suitable for outdoor storage tanks and unheated factory workshop measurement conditions. Compact Integrated Structure: Easy tank top installation, minimal maintenance requirement after long-term running. DCS & PLC Plug-and-Play Compatibility: Directly matched with ABB AC800M control systems for automatic level closed-loop regulation.

4. Structure and Composition

The LT2005-S/SP19 consists of three core assemblies: radar signal transmitter electronic housing, stainless steel guided wave probe and process connection fitting. The internal circuit board integrates radar signal generating module, signal conditioning unit and HART communication chip, all coated with anti-corrosion conformal coating. The sealed upper electronics enclosure isolates internal circuits from tank steam and dust; the rigid stainless steel probe extends into liquid medium to capture radar reflection signals accurately. Standard threaded/flange interface fits most industrial storage tanks and reaction vessels without custom mechanical modification.

5. Application Fields

• Petrochemical Industry: Raw material storage tank, reaction kettle continuous liquid level monitoring
• Thermal & New Energy Power Plants: Cooling water tank, fuel oil tank level measurement and overload interlock
• Municipal Water & Sewage Treatment: Clean water tank, sewage pool real-time level data collection
• Food & Pharmaceutical Factories: Raw material liquid tank level control for clean production workshops
• General Manufacturing: Industrial lubricating oil, solvent storage tank inventory monitoring

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