LONN6004 alcohol density concentration meter for real-time ABV and ethanol monitoring in distilleries, breweries, and bioethanol plants. Ex d IIC T6 explosion-proof; 4-20mA + RS485; 316L U-tube sensor; ±0.001 g/cm³ accuracy. Contact anna@xalonn.com for pricing.
The LONN6004 alcohol density concentration meter is a dual-function inline instrument for brewing, distillation, and ethanol production—delivering simultaneous real-time specific gravity and ABV concentration from one compact unit. Whether tracking fermentation via specific gravity, controlling distillation cuts for maximum ethanol yield, or monitoring spirits during aging—the LONN6004 handles all alcohol quality parameters from a single installation point.
Featuring Ex d IIC T6 explosion-proof certification, this instrument operates safely in hazardous environments where flammable alcohol vapors are present—making it the reliable choice for distilleries, spirit bottling lines, and bioethanol facilities. The integrated U-tube oscillating sensor delivers ±0.001 g/cm³ accuracy; built-in temperature compensation keeps readings stable and traceable across batch cycles.
The LONN6004 eliminates sampling delays and laboratory bottlenecks. Dual 4-20mA and RS485 Modbus RTU outputs stream alcohol quality data to SCADA systems and PLCs for automated process control and batch reporting.
Traditional process control requires separate meters for liquid quality parameters. The LONN6004 consolidates both into a single inline unit—reducing capital investment, installation complexity, and maintenance overhead. The U-tube sensor measures liquid density directly; built-in algorithms convert this to ABV, °Brix, or proof values automatically.
Distilleries and bioethanol plants operate in environments where alcohol vapors create explosion risks. The Ex d IIC T6 explosion-proof housing meets ATEX, IECEx, and CNEX standards for Zone 1 and Zone 2 hazardous areas—protecting personnel, equipment, and facility integrity without compromising measurement performance.
The U-tube oscillating principle delivers excellent sensitivity for low-viscosity alcohol and spirits, achieving ±0.001 g/cm³ accuracy and ±0.0005 g/cm³ repeatability. This precision ensures that ethanol content readings—whether expressed as ABV, °Brix, or proof—remain stable across the full operating range.
Simultaneous 4-20mA analog and RS485 Modbus RTU digital outputs enable seamless integration with DCS, PLCs, and SCADA platforms. Operators configure separate outputs for specific gravity and ABV, assign scaling ranges, and set alarm thresholds—achieving complete visibility into production quality.
| Benefit | Impact |
|---|---|
| Dual Density & Concentration Measurement | Single inline unit covers both alcohol quality parameters, cutting cost and complexity |
| Explosion-Proof Certification (Ex d IIC T6) | Safe deployment in Zone 1/2 hazardous areas with flammable vapors |
| Real-Time Continuous Monitoring | Eliminates manual sampling and laboratory testing delays |
| High Accuracy (±0.001 g/cm³) | Reliable ethanol content data for QC and regulatory compliance |
| Temperature Compensation | Built-in algorithms correct for process temperature variations |
| 316L Stainless Steel U-Tube | Corrosion-resistant wetted parts for long service life in alcohol and CIP environments |
| Dual Output (4-20mA + RS485) | Seamless integration with existing PLC and SCADA infrastructure |
| Wide Range (0.1–5 g/cm³) | Covers all alcohol strength levels from light beverages to fuel ethanol |
| Parameter | Specification |
|---|---|
| Model | LONN6004 |
| Measurement Principle | U-tube oscillating frequency |
| Density Range | 0.1–5 g/cm³ |
| Concentration Range | Configurable (e.g., 0–100% ABV, 0–30°Brix, custom) |
| Accuracy | ±0.001 g/cm³; ±0.1% ABV (calibrated) |
| Repeatability | ±0.0005 g/cm³ |
| Temperature Range | -20°C to +150°C |
| Pressure Rating | ≤ 2.5 MPa (25 bar) |
| Process Connection | Flange (DN15–DN100), Thread (NPT/BSP), Tri-clamp |
| Material (Wetted Parts) | 316L stainless steel |
| Explosion Protection | Ex d IIC T6 (ATEX/IECEx Zone 1/2) |
| Output Signal | 4–20mA + RS485 Modbus RTU |
| Display | LCD: SG / ABV / Temperature |
| Power Supply | 24V DC (±10%) |
| Protection Class | IP67 |
| Certifications | ATEX, IECEx, CNEX, CE, ISO9001 |
Monitor specific gravity and ABV during distillation, fermentation, and aging. The LONN6004 helps distillers identify precise cut points between heads, hearts, and tails—maximizing ethanol yield while maintaining flavor profile consistency.
Track specific gravity and ABV throughout fermentation and distillation to optimize biofuel yield and energy efficiency. The explosion-proof design is essential for hazardous-zone installations where flammable vapors are present.
Measure specific gravity and estimated ABV during beer fermentation. Continuous monitoring helps brewers determine fermentation completion, calculate final alcohol content, and maintain batch-to-batch consistency without manual hydrometer readings.
Ensure precise ethanol quality in pharmaceutical-grade alcohol for tinctures, herbal extracts, and sanitizers. The 316L stainless steel U-tube meets sanitary standards and withstands repeated CIP cycles.
Monitor alcohol-based solvents, coatings, and cleaning agents in chemical manufacturing. The LONN6004’s robust construction resists aggressive chemicals while providing accurate data for formulation control and QA.
Install the LONN6004 directly into process pipelines via flange, thread, or tri-clamp connections. For optimal ethanol monitoring accuracy:
The LONN6004 converts raw U-tube frequency readings to ABV and ethanol quality values using built-in algorithms. Supported expressions include:
Temperature compensation coefficients are pre-loaded for common alcohol-water solutions. For non-standard mixtures, the instrument supports custom calibration using reference samples.
| Model Code | Description |
|---|---|
| LONN6004-A | Standard explosion-proof alcohol density & concentration meter, flange connection |
| LONN6004-B | Compact version with tri-clamp connection (sanitary applications) |
| LONN6004-C | High-temperature version (up to 200°C process temperature) |
| LONN6004-D | Custom process connection and concentration range |
Contact for Pricing & Technical Support: anna@xalonn.com or complete our RFQ form.
LONNMETER is a trusted manufacturer of industrial density and concentration measurement instruments, serving the brewing, distillation, petrochemical, pharmaceutical, and bioenergy sectors. With ISO9001 certification and global export to 100+ countries, LONNMETER delivers accurate, reliable, and safety-certified inline instruments for process-critical applications.
Contact LONNMETER: anna@xalonn.com
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