Introduction to Electronic Sulfuric Acid Concentration Meter SDW-012

The electronic sulfuric acid concentration meter SDW-012 uses the principle of double U-tube oscillation to measure sulfuric acid concentration. After pumping the sulfuric acid to be tested into the resonant cylinder sensor, it is kept at a constant temperature of 20 ℃ through a constant temperature bath. The oscillation frequency of the double U-shaped tube filled with sulfuric acid solution is detected by a microcontroller, and the measurement data is processed and converted into sulfuric acid concentration, which is fast, direct, and highly sensitive.

Features:

1. Constant temperature control: As 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 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).

2. Directly display the density and concentration values of sulfuric acid solution at 20 ℃, with temperature display: detect the oscillation frequency of the sensor through a microcontroller, use the mathematical model of the relationship between sensor frequency and liquid density to calculate the density value of the liquid, and then perform floating-point operations. Convert it into sulfuric acid concentration value through software, so that there will be 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.

3. Automatic sampling: The use of a microcontroller to control a stepper motor to drive a peristaltic pump for sample suction improves the automation level of the product

4. 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.

5. 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).

6. 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.

Technical Specifications

Density measurement range: 998.0~1999.99kg/m3 (0.9980~1.99999g/cm3)

Density measurement indication error: ≤± 0.2kg/m3 (0.0002g/cm3)

Accuracy measurement resolution: 0.1kg/m3 (0.0001g/cm3)

Measurement range of sulfuric acid concentration: 0~93%

Sulfuric acid concentration indication error: ≤ 0.1%

Constant temperature control: any temperature within the range of 15~35 ℃

Constant temperature accuracy: ± 0.05 ℃

Sampling volume: 2ml/time

Data storage: 80 sets

Environmental temperature requirement: 5 ℃~35 ℃

Power supply: 220V ± 22V, 50Hz ± 1 Hz, 50VA

Dimensions: 206mm × 205mm × 200mm

Instrument weight: 3.2Kg

Low configuration options:

Technical Specifications
Density measurement range: 998.0~1999.9kg/m3 (0.9980~1.9999g/cm3)

Density measurement indication error: ≤± 0.4kg/m3 (0.0004g/cm3)

Accuracy measurement resolution: 0.1kg/m3 (0.0001g/cm3)

Measurement range of sulfuric acid concentration: 0~93%

Sulfuric acid concentration indication error: ≤ 0.2%

Constant temperature control: any temperature within the range of 15~35 ℃

Constant temperature accuracy: ± 0.1 ℃

Sampling volume: 2ml/time

Data storage: 80 sets

Environmental temperature requirement: 5 ℃~35 ℃

Power supply: 220V ± 22V, 50Hz ± 1 Hz, 50VA

Dimensions: 206mm × 205mm × 200mm

Instrument weight: 3.2Kg