The Digital Alcohol Concentration Meter/Density Meter is an instrument used to measure the alcohol content in liquids, widely used in areas such as alcoholic beverage production, medical testing, and food safety.
It features a built-in temperature sensor and can display alcohol density, concentration, temperature, and specific gravity. The measured alcohol concentration and temperature data are transmitted to a PLC or DCS system, enabling accurate control of the automatic distillation process.
Features
- Features analog signal 4-20mA and digital signal RS485 remote transmission output.
- Real-time display of standard alcohol content at 20℃; real-time indication of alcohol concentration and temperature.
- Parameters can be set and adjusted directly through the instrument menu on-site, making operation convenient.
- Features pure water calibration, measurement value fine-tuning, and temperature compensation functions.
- Online real-time measurement, suitable for direct use in production process control.
- Liquid-contacting parts are made of 316 stainless steel, ensuring safety, hygiene, and good corrosion resistance.
Digital Alcohol Concentration Meter Technical Specifications
| Measured Medium | Alcohol liquid |
| Display Method | Displays density, concentration, and temperature; LCD dot matrix screen with backlight; Chinese/English menu switchable |
| Medium Temperature Range | -40℃～150℃ |
| Measuring Range | 0~2.5g/cm³ (default, adjustable) |
| Measuring Accuracy | 0.001g/cm³ (within the range of 0.6~1.2g/cm³) |
| Ambient Temperature | -40℃～80℃ |
| Medium Viscosity | 600cP (standard) |
| Pressure Range | ≤10Mpa |
| Housing Material | Die-cast aluminum alloy |
| Power Supply Voltage | 24VDC |
| Output Signal | 4-20mA, RS-485, MODBUS protocol |
| Protection Class | IP65 |
| Explosion-proof Standard | Exd ⅡC T6 Gb |
| Connection Method | DN50 (standard), various specifications of threads, flanges, sanitary clamps |
| Wetted Materials | 316L stainless steel, 2205 duplex stainless steel, Hastelloy C, titanium, tantalum, zirconium and other metals, PTFE, PFA |
| Electrical Interface | M20*1.5 |
| Repeatability | Repeatability: 0.0002g/cm³ |
| Resolution | 0.00001g/cm³ |
Alcohol Concentration Meter Working Principle
The online alcohol concentration meter uses an acoustic frequency signal source to excite a metal resonator. The resonator then vibrates freely at its center frequency. This frequency has a corresponding relationship with the density of the liquid it is in contact with. Therefore, the liquid density can be measured by analyzing the frequency.
Temperature compensation is then applied to eliminate system drift due to temperature changes. The concentration is then calculated at 20°C based on the relationship between the liquid density and concentration.
Featured Applications
The Digital Alcohol Concentration Meter/Density Meter is suitable for various installation methods, including pipe mounting and container wall insertion. It can measure both dynamic and static concentrations.
Distilled Alcohol Brewing Industry
The distillation workshop production line prioritizes intelligent and digital production, requiring segmented collection of alcohol concentration. The grain in the distillation tower, after distillation, produces alcohol that flows into the tank via a condenser. The system controls the alcohol in three stages based on concentration, equipped with fully enclosed, hygienic, automatic control valves.
Stage 1: As distillation time progresses, the first distillate (heads) containing impurities emerges. The system collects and controls the heads, approximately 5 kg, via a time setting. At this point, the valve opens, allowing the heads to flow into the tank until the set time is reached, at which point the valve closes. This can be adjusted according to different baijiu brewing processes.
Stage 2: After head separation, this is the crucial stage of the process. The valve opens, and the system collects and stores the mash with alcohol concentrations of strong aroma (75%~55%)/sesame aroma (≥20%) in this tank. It can be graded according to different aroma types and alcohol concentrations. The corresponding valve opens for grading collection when the alcohol concentration falls below the minimum range. When the concentration meter detects an alcohol concentration below the minimum range, the valve closes.
Note: Due to different brewing processes requiring different alcohol percentages, the system can directly set the alcohol percentage range based on the winery’s actual needs.
Third Stage: Tail Wine Collection. When the alcohol percentage is below the minimum set value, all valves are closed, and the tail wine valve is opened for effective collection.
More Concentration Meters
The Digital Alcohol Concentration Meter/Density Meter can be easily installed on critical production lines such as pipelines to continuously collect data and quickly transmit alcohol concentration and temperature information synchronously to PLC or DCS systems, ensuring the accuracy of automated control in the production process.
Sino-Inst’s Digital Alcohol Concentration Meter/Density Meter offers high measurement accuracy. Based on the principle of tuning fork vibration and coupled with the sophisticated algorithm of its internal chip, it achieves a measurement accuracy of 0.001 grams per cubic centimeter, providing data assurance for the quality of alcoholic beverages. If you need to measure the concentration of alcoholic liquids, please feel free to contact our sales engineers!
Digital Alcohol Concentration Meter/Density Meter
The Digital Alcohol Concentration Meter/Density Meter is an instrument used to measure the alcohol content in liquids, widely used in areas such as alcoholic beverage production, medical testing, and food safety.
Product SKU: Digital Alcohol Concentration Meter/Density Meter
Product Brand: Sino-Inst
Product In-Stock: InStock
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