1. Product introduction
The Smart Online Density/Concentration Meter is a rugged and reliable plug-in meter that requires minimal maintenance, providing fully integrated "plug and play, maintenance-free" density measurement.
Working principle
The Intelligent Online Density Concentration Meter uses the sound wave frequency signal source to excite the metal tuning fork, and makes the tuning fork vibrate freely at the center frequency. This frequency has a corresponding relationship with the density of the contact liquid, so the liquid can be measured by analyzing the frequency. Density, and temperature compensation can eliminate the temperature drift of the system; and the concentration can be calculated according to the relationship between the density and concentration of the corresponding liquid at a temperature of 25 ℃.
Particle limit | Containing gas | Maximum Liquid Viscosity |
Particle diameter | Suspended particles% |
<10 microns | ＜=40% | recommend | 500cp |
10~50 microns | ＜=20% | generally not used | 2000cp |
2. Product parameter
Precision | ±0.001g/cm3 | ±0.25% |
The scope of work | 0～2g/cm3 | 0～100% |
Repeatability | ±0.0005g/cm3 | ±0.1% |
Process temperature effect (corrected) | ±0.0001g/cc | ±0.1kg/cm3 （per℃） |
Process pressure effect (corrected) | can be ignored | can be ignored |
(1) The above accuracy applies to the calibration range of 0.8–1.5g/cm3 (800–1500 kg/m3).
(2) The maximum viscosity of the liquid can reach 2000cP.
(3) Temperature effect refers to the maximum measurement deviation caused by the process fluid temperature deviating from the factory calibration temperature.
(4) Pressure effect is defined as the change in sensor flow and density sensitivity due to process pressure deviation from calibration pressure.
Temperature specification
process temperature | –25℃～+120℃ |
Ambient temperature | –25℃～+85℃ |
Temperature Coefficient | 20ppm/℃(after calibration) |
Built-in temperature sensor | Temperature chip |
Structural materials
Wetted parts | 316L, Hastelloy, titanium alloy, zirconium, etc. |
Tine polishing | Standard polished, PTFE coated, electropolished |
Shell | IP65, aluminum alloy |
Pressure rating
Working pressure | Standard | Within 2.5MPa |
Special custom | Within 6.3MPa |
Test pressure | Tested at 1.5 times the maximum working pressure |
Actual maximum working pressure is limited by process connection rating |
Process connection
Process connection type | flange |
Clamp |
thread |
Hazardous area classification
Explosion-proof certification | Ex d ⅡC T6 Gb |
Electrical characteristics
Power requirements | 24VDC,100mA |
Output | Four-wire system, 4-20mA/RS485 |
Electrical Interface | M20*1.5 |
Fluid Viscosity Range
Viscosity requirements | 0-2000cP |
3. Product features
Fully integrated“plug and play, maintenance-free”digital measurements for monitoring and control | Explosion-proof certification |
continuous measurement | Long stem version for use in open and sealed cans |
No moving parts, low maintenance | Pole length up to 4 meters |
Provide materials including 316L, Ha C, zirconium, etc. | A small amount of solids and air bubbles are allowed |
Density, standard density or special calculated values (% solids, API, specific gravity, etc.), 4–20 mA output. | Not easily affected by temperature and pressure |
Provide temperature sensor | Inline Density Meter Suitable for Operation at High Pipeline Pressures |
4. Fields of use
1. Petrochemical industry: diesel, gasoline, ethylene, etc.
2. Chemical industry: sulfuric acid, hydrochloric acid, nitric acid, chloroacetic acid, ammonia water, methanol, ethanol, brine, sodium hydroxide, freezing liquid, sodium carbonate, glycerin, hydrogen peroxide, etc.
3. Pharmaceutical industry: medicinal liquid, biological liquid, alcohol extraction, acetone, alcohol recovery, etc.
4. Food and beverage industry: sugar water, fruit juice, brewing, cream, etc.
5. Battery and electrolyte industry: sulfuric acid, lithium hydroxide, etc.
6. Environmental protection industry: desulfurization (lime slurry, gypsum slurry), denitrification (ammonia, urea), wastewater treatment mvr (acid, alkali, salt recovery), etc.
Typical industry
Petroleum and petrochemical industry | —Interface detection—Multi-product delivery lines |
Chemical Industry | - Production of acid-base salts - Quality control |
Wine industry | - Quality control - continuous on-line testing |
Organic and Inorganic Chemical Materials | - Leak detection - underground storage tanks using brine |
Pharmaceutical Industry | - Traditional Chinese medicine concentration, alcohol recovery |
Battery industry | - Concentration of lithium hydroxide, electrolyte, sulfuric acid solution |
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