SH102D fully automatic thermostatic petroleum densitometer is suitable for measuring the density and relative density of liquids. This method is based on the principle that the vibration frequency is different when the double U-shaped tube is filled with different media. It complies with GB/T2013-2010, GB/T29617-2013, and ASTMD 4052. After pumping the liquid to be measured into the resonant cylinder sensor, the measurement data is processed by a single chip microcomputer, which is fast, direct, and highly sensitive. It is composed of a dual tuning fork type density sensor, a vibrating cylinder circuit, a temperature measuring circuit, a CPU, a display, a thermostatic tank, a liquid inlet pump, and a control panel. The liquid densitometer can be widely used for measuring the density of various liquids, and with different concentration conversion software, it can also directly read the concentration value of corresponding liquids, such as alcohol. Through the processing of single-chip software, it can directly read the volume concentration data, making testing more convenient.
The U-shaped vibrating tube densitometer adopts the international standard ISO 12185, 1996 "Determination of Density of Crude Oil and Petroleum Products - U-shaped Vibrating Tube Method", and also meets the standard of SH/T0604-2000 "Determination of Liquid Density and Relative Density (Digital Densimeter Method)"
The principle of measuring liquid density with a U-shaped oscillating tube
The oscillating tube method is used to measure the density of a substance, which utilizes an electromagnetically induced U-shaped glass tube to generate oscillations. The vibration frequency of the substance is related to the density. The actual density of the substance is calculated by calculating the frequency difference between the measured substance and the reference standard substance. The oscillating tube method is used, which has high measurement accuracy,
Performance characteristics
1. Constant temperature control: Because the liquid density is greatly affected by temperature, it is necessary to convert the liquid density detected at real-time temperature into the liquid density at 20 ℃. This instrument adopts constant temperature bath control, which seals the sensor, its components, and the sample liquid in the constant temperature bath. The temperature of the oscillating tube (sample liquid) is detected by the temperature sensor, and the electronic components are controlled by a single chip microcomputer for cooling or heating, ensuring that the temperature in the constant temperature bath is stable within the range of 20 ℃ ± 0.1 ℃. This not only solves the troubles and errors caused by conversion, but also ensures the measurement accuracy, stability, and repeatability of the instrument (constant temperature values can be customized according to user requirements)
2. Directly display the density value of the liquid at 20 ℃, with temperature display: detect the oscillation frequency of the sensor through a single chip computer, use the mathematical model of the relationship between the sensor frequency and the liquid density, calculate the density value of the liquid, and then perform floating-point operations, so that no additional error will be caused due to insufficient operation digits during the operation process, ensuring the accuracy of the measurement results. The density value calculated by the single chip computer is displayed through a five digit number, and there is a temperature display window.
3. Automatic sampling: Using a single-chip microcomputer to control a stepper motor to drive a peristaltic pump to suck samples improves the automation of the product
4. Acid and alkali resistant pipes: The pipes in direct contact with the liquid are all imported acid and alkali resistant pipes, ensuring that the instrument can measure acid and alkali solutions.
5. Data storage and transmission: Built in memory chip, it can store 80 sets of detection data, and can be recalled and deleted. It can be connected to the computer through 232 interface according to user requirements (customized).
Calibration function: When the instrument is not used for a long time, it will generate drift. This instrument can use 20 ℃ pure water as a standard to calibrate the instrument, which is a function that glass densitometers cannot achieve.
Main technical parameters of SH102D1 automatic densitometer with 5/10000 accuracy
l Measurement range of density: 0.0001~1.999g/cm3
l Density measurement accuracy: ± 0.0005g/cm3
l Density value resolution: ± 0 005g/cm3
l Constant temperature control: 20 ℃± 0.1 ℃
l Sampling amount: 2ml/time
l Data storage: 80 groups
l Ambient temperature requirements: 5 ℃~35 ℃
l Power supply: 220V ± 22V, 50Hz ± 1 Hz, 50VA
l Overall dimension: 206mm × 205mm × 200mm Instrument weight: 3.2Kg
Main technical parameters of SH102D2 1/1000 precision automatic densitometer
n Measurement range of density: 0.001~1.999g/cm3
n Density measurement accuracy: ± 0.001g/cm3
n Density value resolution: ± 0 001g/cm3
n Constant temperature control: 20 ℃± 0.1 ℃
n Sampling amount: 2ml/time
n Data storage: 80 groups
n Ambient temperature requirements: 5 ℃~35 ℃
n Power supply: 220V ± 22V, 50Hz ± 1 Hz, 50VA
n Overall dimension: 206mm × 205mm × 200mm Instrument weight: 3.2Kg
n Package size: 236 * 235 * 240mm Weight: 3.5kg
Packing list
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S/N |
Name |
Quantity |
Unit |
Remarks |
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1 |
Density meter host |
1 |
1set |
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2 |
flexible pipe |
1 |
group |
ordinary |
|
3 |
flexible pipe |
1 |
group |
Corrosion resistant |
|
4 |
Power cord |
1 |
piece |
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|
5 |
Instructions |
1 |
copy |
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6 |
Certificate of Conformity Warranty Card |
1 |
copy |
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Company Introduction
Shandong Shengtai Instruments Co., Ltd. is specialized in the research and production of experimental testing instruments and industrial testing instruments. It is a professional instrument company integrating instrument research and development, manufacturing, sales and service. Its products are widely used in food, flour, grain and oil, Feed, electricity, petrochemical, industrial oil, aerospace, coal quality and other industries.
For more than 10 years, Shengtai has always been adhering to the "first-class service, customer first" as the purpose, "reasonable price, honesty and trustworthiness" as the business policy. Adhere to technical innovation, with rich knowledge of the technical team and experienced, thoughtful after-sales service team.
Shengtai instrument as one of the most large-scale and competitive enterprises in the industry, with the strength of technology research and development, professional technical knowledge and innovative design concept, in the model improvement, Significant technical breakthrough has been achieved in the development of function expansion and intelligent control system.
OUR service
After-sales service commitment, our company to sell the product after-sales service commitment: warranty period of one year, long-term technical support outside the warranty period. During the warranty period, the seller shall bear the cost of the replacement of the equipment, the freight and maintenance of the instrument; outside the warranty period, the seller shall waive the maintenance fee and charge only the cost of the basic materials and freight charges when the instrument is malfunctioning and the seller shall not charge the maintenance fee during the warranty period.
