RBDM Fork Insertion liquid Density Meter is based on the proven tuning fork technology. It is an all-welded sensor that is designed for insertion into a pipeline, open tank, or closed tank.
Fluid density is determined directly from the resonant frequency of the tuning fork immersed in the fluid. A temperature sensor is also fitted within the transmitter to indicate the operating temperature.
The fork plug-in density meter is a versatile instrument that finds wide application in various industrial fields. Its accurate and reliable measurement capabilities make it an essential tool in ensuring quality control and process optimization.
In the petroleum industry, density measurement is crucial for assessing the quality and purity of various petroleum products. The fork plug-in density meter can be used to measure the density of crude oil, refined petroleum products, and natural gas. This information is essential for maintaining product consistency and determining the energy content of fuels.
In the pharmaceutical industry, the density meter is utilized for measuring the concentration and purity of liquid drugs and solutions. It ensures that medication formulations are precisely mixed and meet regulatory requirements.
In the food and beverage industry, the density meter is employed for measuring the sugar content, alcohol concentration, and overall quality of beverages. It is also used in the dairy industry to measure the fat content in milk products.
The tuning fork plug-in density meter can also be applied in the chemical industry for monitoring the density of various chemicals and solutions. This is vital for ensuring accurate dosing and mixing in chemical processes.
Additionally, the density meter is used in the mining and metallurgical industries to determine the density of ores and minerals. This information allows for efficient processing and separation of valuable materials.
Overall, the wide application of the tuning fork plug-in density meter in the industrial field is a testament to its importance in achieving precise measurements, maintaining quality control, and optimizing various industrial processes.
RBDM Insertion Density Meter operates on the vibrating element principle, the element in this case being a tuning fork structure that is immersed in the liquid being measured. The tuning fork is excited into oscillation by a piezoelectric device internally, secured at the root of one tine. The frequency of vibration is detected by a second piezoelectric device, which is secured in the root of the other tine.
The meter sensor is maintained at its natural resonant frequency, as modified by the surrounding liquid, by an amplifier circuit located in the electronic housing. This frequency of vibration is a function of the overall mass of the tine element and the density of the liquid in contact with it. As the density of the liquid changes, the overall vibrating mass changes, and therefore the resonant frequency changes.
By measuring this frequency and applying the following equation, the density of the liquid can be calculated.
ρ = K0 + K1τ + K2τ2
Where:
• ρ = Fluid uncorrected density (kg/m3)
• τ = Time period of meter (μs)
• K0, K1, K2 = meter calibration coefficients
RBDM Fork Insertion Density Meter Features:
RBDM Fork Insertion Density Meter Specifications
|
Density range |
0.5 – 2.5 g /cc (500 – 2500 kg/m3) |
|
Calibration range |
0.8 – 1.2 g /cc (800 – 1200 kg/m3) |
|
Accuracy |
± 0.002 g /cc (± 2 kg/m3);± 0.001 g /cc (± 1 kg/m3) |
|
Repeatability |
± 0.0002 g /cc (± 0.2 kg/m3) |
|
Temperature range (Process) |
-20 ~ +150 Degree Celsius (℃) |
|
Pressure rating |
10MPa ~ 20MPa |
|
Viscosity range |
0 – 20000 cP |
|
Temperature effect |
Less than 0.1 kg/m3/℃ (After Calibration) |
|
Impact from pressure |
Negligible |
|
Built-in temperature sensor |
PT100 |
|
Wetted parts |
Stainless steel 316L/ HC Hastelloy |
|
Tine finish |
Standard, PFA coated, or Electro-polished |
|
Power supply |
24VDC，≥500 mA |
|
Analog Output |
4 -20 mA，0-1000Hz，RS485 Modbus RTU |
|
Density accuracy - process(20℃) |
± 0.1% or ± 0.05% FS of indicated figures |
|
Repeatability - process(-40 ~85℃) |
± 0.05% FS |
|
Process connection |
ANSI 150 ~ 1500 RF DIN 50 PN16 DIN 50 PN40 IDF and RJT hygienic type |
|
Protection Grade |
IP65 |
|
Outer covering |
Aluminum alloy |
RBDM Insertion liquid Density Meter Model selection
| RBDM Fork Insertion Density Meter Model selection | |||||||||||
| Code | Production | ||||||||||
| RBDM | RBDM-CR Liquid Insertion Density Meter | ||||||||||
| Code | Probe Rob Material | ||||||||||
| A | 316 Stainless Steel Standard | ||||||||||
| B | HC Hastelloy Standard | ||||||||||
| C | HB3 | ||||||||||
| D | Titanium alloy | ||||||||||
| E | Zirconium | ||||||||||
| F | Tantalum | ||||||||||
| G | Monel alloy | ||||||||||
| H | Super Austenitic stainless steel | ||||||||||
| I | C4 steel | ||||||||||
| J | Overall lining PFA or PTFE | ||||||||||
| X | Special custom | ||||||||||
| Code | Flange Material | ||||||||||
| A | The material of the whole flange is the same as that of the probe rod | ||||||||||
| B | The material of the lower end of the flange is the same as that of the probe rod | ||||||||||
| C | Special custom | ||||||||||
| Code | Power supply | ||||||||||
| D | 24VDC | ||||||||||
| A | 220VAC | ||||||||||
| Code | Pressure Class | ||||||||||
| 16 | 1.6MPa | ||||||||||
| 40 | 4.0MPa | ||||||||||
| XX | Requested preference：Please inform for particular requirement | ||||||||||
| Code | Process Connection | ||||||||||
| 1 | DN50 HG/T 20592-2009RF | ||||||||||
| 2 | Tri-clamp Connection | ||||||||||
| X | Special custom | ||||||||||
| Code | Length | ||||||||||
| 128 | Standard length 128mm | ||||||||||
| XXX | Special length | ||||||||||
| Code | Installation Method | ||||||||||
| A(xx) | Horizontal Pipeline Insertion (X=pipe line) | ||||||||||
| B(xx) | Variable Installation Pipe (X=pipe line size) | ||||||||||
| C | Tank Insertion | ||||||||||
| D | Please inform for particular requirement | ||||||||||
| Code | Transmitter output | ||||||||||
| C | 4-20mA 0-1000Hz RS485 Modbus RTU | ||||||||||
| Code | Transmitter housing | ||||||||||
| F | Aluminum Alloy | ||||||||||
| Code | Factory Setting | ||||||||||
| G | Factory Setting Options | ||||||||||
| RBDM-CR | A | A | D | 16 | 1 | 128 | A-200 | A | F | G | Typical Model Selection |
| Remark: | |||||||||||
| 1. Ex-proof design;. | |||||||||||
RBDM Fork Insertion liquid Density Meter Application
RBDM Insertion Density Meter is ideally suited to applications where continuous, real-time measurement of density is required. As an instance, it can be used in process control where density is the primary control parameter for the end product, or functioning as an indicator of some other quality control parameter such as percent solids, or percent concentration.
RBDM Insertion Density Meter can be applied widely in numerous industries, including brewing, end point detection in batch reactions, evaporator control, petroleum retail outlets, product mixing, slurries, tank and pipe applications, and solvent separation.
Catalog - Insertion type density meter
Manual - Density meter
Other files - Density measurement
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