Gear Oil Fully Automatic Constant Temp Density Meter 0.0001～1.999g/Cm³ ASTM D4052

SH102D Automatic Density Tester

The SH102D fully automatic constant temperature petroleum densitometer is suitable for measuring liquid density and relative density. This method measures liquid density based on the principle that the oscillation frequency is different when the double U-shaped tube is filled with different media. GB/T 2013-2010 "Determination of Density of Liquid Petrochemical Products" and GB/T 29617-2013 "Test Method for Liquid Density, Relative Density, and API Gravity with Digital Density Meter" and ASTM D 4052 are used.

After pumping the liquid to be tested into the resonant cylinder sensor, the measurement data is processed by a microcontroller, which is fast, direct, and highly sensitive. It is composed of a double tuning fork density sensor, a vibrating tube circuit, a temperature measurement circuit CPU, It consists of a monitor, a thermostatic bath, an inlet pump, and a control panel. This liquid density meter can be widely used for measuring the density of various liquids, and with different concentration conversion software, it can directly read the concentration value of the corresponding liquid, such as alcohol. Through the processing of the microcontroller software, the volume concentration data can be directly read, making testing more convenient.

Meet the standard SH/T0604-2000 "Determination of Liquid Density and Relative Density (Digital Density Meter Method)"

The principle of measuring liquid density with U-shaped oscillating tube

The oscillation tube method is used to measure the density of a substance by inducing oscillations in a glass U-shaped tube using electromagnetic waves. The vibration frequency of the substance is related to its density, and the actual density of the substance is calculated by comparing the frequency difference between the measured substance and a reference standard substance. The oscillation tube method is used to achieve high measurement accuracy.

Performance characteristics

● Constant temperature control: As liquid density is greatly affected by temperature, it is necessary to convert the liquid density detected at real-time temperature to the liquid density at 20 ℃. This instrument is controlled by a constant temperature bath, where the sensor, its components, and the sample solution are sealed inside the bath. The temperature of the oscillation tube (sample solution) is detected by a temperature sensor, and the electronic components are controlled by a microcontroller to cool or heat it, ensuring that the temperature inside the bath remains stable within the range of 20 ℃± 0.1 ℃. This not only solves the problems and errors caused by conversion, but also ensures the measurement accuracy, stability, and repeatability of the instrument (the constant temperature value can be customized according to user requirements).

● Directly display the density value of the liquid at 20 ℃ with temperature display: the oscillation frequency of the sensor is detected by a microcontroller, and the density value of the liquid is calculated using a mathematical model of the relationship between the sensor frequency and liquid density. Then, floating-point operations are performed to ensure that there are no additional errors caused by insufficient calculation bits during the calculation process, ensuring the accuracy of the measurement results. The density value calculated by the microcontroller is displayed as a five digit number and has a temperature display window.

● Automatic sampling: Using a microcontroller to control a stepper motor to drive a peristaltic pump for sample suction, the automation level of the product is improved

Acid and alkali resistant pipelines: The pipelines that come into direct contact with liquids are all imported acid and alkali resistant pipelines to ensure that the instrument can measure acid and alkali solutions.

● Data storage and transmission: Equipped with a built-in storage chip, it can store 80 sets of detection data and can be recalled and deleted. It can be connected to a computer through a 232 interface according to user requirements (customized).

● Calibration function: When the instrument is not used for a long time, drift will occur. This instrument can be calibrated using 20℃ pure water as a standard, which is a function that glass density meters cannot achieve.

SH102D1 automatic densitometer with 5/10000 accuracy technical parameters

Main technical parameters of SH102D2 1/1000 precision automatic densitometer

Note: The appearance pictures, dimensions, volume and weight of the instrument are for reference only. If there are any updates to the instrument, they may be slight changes without prior notice.

Note: This instrument is not suitable for density determination of crude oil.

Shandong Shengtai Instrument Co., Ltd. provides the following quality assurance for the instruments sold to you:

----The provided instrument materials are brand new, meet national quality standards, and have a manufacturer's certificate of conformity;

----The materials and main components provided meet the technical requirements specified in the technical documentation;

----The overall quality assurance period of the equipment is one year (excluding normal wear and tear of vulnerable parts).

----We are responsible for free maintenance of any instrument quality issues that occur during the warranty period. Due to equipment malfunction caused by the user's responsibility, we are responsible for repairing and charging reasonable fees.

----Lifetime discounted supply of parts for equipment, and lifetime maintenance and repair of the entire machine.

----After the expiration of the warranty period, if the user needs maintenance and technical services, we will only charge a cost fee.

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