Fork Density Meter
The NexFlow NX-FDM Series Fork Density Meter provides highly accurate inline density and concentration measurement for real-time process monitoring and industrial automation.
- ▪Density Range: 0–3 g/cc
- ▪Accuracy: ±0.001 g/cc
- ▪Repeatability: ±0.0005 g/cc
- ▪Pressure up to 200 bar
- ▪Temperature Compensation
- ▪Explosion-proof Option
- ▪Continuous Density Measurement
- ▪Mass Flow Calculation
- ▪Interface Detection
Product Overview
The NexFlow NX-FDM Series Fork Density Meter is a high-performance inline density and concentration analyzer designed for continuous measurement of liquid density, concentration, and process conditions. Utilizing vibrating fork technology, it delivers exceptional accuracy and repeatability without requiring moving parts or frequent calibration. Ideal for chemical processing, food & beverage, pharmaceutical, oil & gas, battery manufacturing, and water treatment applications, the NX-FDM Series provides reliable density monitoring even under harsh operating conditions.
Working Principle: The NX-FDM Series Fork Density Meter operates using a vibrating tuning fork sensor. The fork is excited at its natural resonant frequency. As the surrounding liquid density changes, the resonant frequency shifts proportionally. Advanced digital electronics continuously monitor this frequency change and calculate the fluid density with high precision. Temperature compensation is automatically applied to ensure stable and accurate measurements. When integrated with a volumetric flow meter, the system can also calculate mass flow.
Technical Specifications
| Product Type | Fork Density Meter |
|---|---|
| Series | NX-FDM Series |
| Measurement Principle | Vibrating Fork Technology |
| Measurement Parameter | Density, Concentration, Temperature |
| Density Range | 0–3 g/cc (0–3000 kg/m³) |
| Accuracy | ±0.001 g/cc (±1.0 kg/m³) |
| Repeatability | ±0.0005 g/cc |
| Process Temperature | –10°C to +120°C |
| Ambient Temperature | –10°C to +85°C |
| Maximum Viscosity | 2000 cP |
| Maximum Pressure (Short Rod) | Up to 200 bar |
| Maximum Pressure (Long Rod) | Up to 100 bar |
| Process Connection | Flanged |
| Sensor Material | SS316L Stainless Steel |
| Housing Material | Aluminium / SS (Optional) |
| Display | LCD Digital Display |
| Output Signal | 4–20 mA |
| Communication | RS485 Modbus RTU (Optional) |
| Optional Communication | HART® |
| Power Supply | 24 VDC |
| Protection Class | IP65 |
| Explosion Protection | Optional ATEX / IECEx |
| Calibration | Factory Calibrated |
| Installation | Inline |
| Maintenance | Minimal |
Key Features
- ✓Continuous inline density measurement
- ✓High accuracy up to ±0.001 g/cc
- ✓Excellent repeatability
- ✓Real-time concentration monitoring
- ✓Integrated temperature compensation
- ✓No moving mechanical parts
- ✓Fast response time
- ✓Compact installation
- ✓Digital LCD display
- ✓Explosion-proof transmitter option
- ✓Suitable for corrosive liquids
- ✓Supports mass flow calculation
Applications
- ▸Acid concentration monitoring
- ▸Alkali concentration control
- ▸Battery electrolyte density measurement
- ▸Alcohol blending
- ▸Traditional medicine liquid production
- ▸Chemical dosing
- ▸Evaporator concentration control
- ▸Solvent separation
- ▸Sugar syrup concentration
- ▸Food processing
- ▸Pharmaceutical production
- ▸Process quality control
- ▸Mass flow measurement systems
- ▸Interface detection in pipelines
- ▸Liquid blending systems
- ▸Storage tank monitoring
- ▸Chemical reactors