Liquid Density & Concentration

Reliable density monitoring is the backbone of quality control in the chemical, pharmaceutical, and food industries. At Longvista, we provide a curated selection of online density transmitters designed for continuous, maintenance-free operation.

Our range utilizes four distinct measurement technologies to ensure compatibility with everything from high-purity alcohols to abrasive mining slurries.

Technology Overview

  • Tuning Fork Technology (SPX504 Series): Best for clean liquids, solvents, and food-grade applications. Available in hygienic, threaded, and flanged versions.

  • Differential Pressure (SPX510 Series): The industry standard for large tanks and viscous liquids. Features a dual-LCD display and integrated recalibration.

  • Coriolis Technology (SPX600 Series): The “Gold Standard” for extreme precision. Simultaneously measures mass flow, density, and temperature.

  • Optical Spectrum (SPX530 Series): Ideal for chemical concentration monitoring where traditional mechanical sensors cannot be used.

Key Industrial Applications

  • Chemical & Petrochemical: Monitoring acid/base concentration and interface detection.

  • Food & Beverage: Real-time Brix (sugar) monitoring and alcohol content verification.

  • Pharmaceutical: Ensuring precise batch consistency in reactor vessels.

  • Water & Environmental: Sludge density and suspended solids monitoring in wastewater plants.

FAQ

  • What is the advantage of ‘Online’ density measurement? It eliminates the delay of lab testing, allowing for immediate automated adjustments to the production line.

  • Can these sensors handle corrosive liquids? Yes, we offer specialized materials including Tantalum, Hastelloy, and PTFE coatings for harsh chemical environments.

  • Is ATEX certification available? Most models in the SPX series are available with ATEX/Intrinsically Safe certifications for hazardous zones.

 

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