Electronic liquid density meters can be widely used to measure the density of various liquids, and have been widely used in various fields such as biochemistry, pharmaceuticals, chemicals, oil refining, environmental protection, food, wine making, pharmaceuticals, petroleum, and food and beverage processing. It is used in the quantitative packaging inspection of the quality technical supervision system and in the laboratories of colleges and universities. It can be widely used in the measurement of various liquid densities, and with different concentration conversion software, it can also directly read the concentration value of the corresponding liquid, such as alcohol, The volume concentration data can be directly read out through the processing of the single-chip computer software, and the test is more convenient.
The constant temperature electronic liquid density meter measures the liquid density based on the principle that the oscillation frequency is different when the double U-shaped tube is filled with different media. After the liquid to be measured is pumped into the sensor of the resonant cylinder, the measurement data is processed by the single-chip microcomputer, which is fast and direct, and has high sensitivity. It is composed of a double tuning fork density sensor, a vibrating cylinder circuit, a temperature measuring circuit, a CPU, a display, a constant temperature tank, a liquid inlet pump and a control panel. It changes the traditional method of measuring liquid density with a glass density meter, making liquid density measurement more accurate, fast and economical.
Electronic liquid density meter complies with GB/T29617, ISO12185, ASTM D4052/D5002, GB/T29617-2013, GB/T2013-2010, GB23971-2009, GB4747-2009, SH/T0604-2000, SN/T2383-2009, SH /T0729-2004, ASTMD4052, ASTMD5002, ASTM D1250, ASTM D3505, ISO 12185:1996 specification
Constant temperature control: adopt constant temperature tank control, seal the sensor, its components and sample liquid in the constant temperature tank, detect the temperature of the oscillating tube (sample liquid) through the temperature sensor, and control the cooling or heating of the electronic components by the single-chip microcomputer to ensure the temperature of the constant temperature tank The temperature inside is stable within the range of 20℃±0.1℃.
Directly display the density value of the liquid at 20°C, and have a temperature display window. 3. Automatic sampling: the single-chip microcomputer controls the stepper motor to drive the peristaltic pump to suck samples, which improves the automation of the product. 4. Data storage and transmission: the built-in memory chip can store 80 sets of detection data, and can be recalled and deleted . It can be connected with the computer through the 232 interface according to the user's requirements (customized). 5. Calibration function: Use pure water at 20°C as a standard to calibrate the instrument, which is a function that cannot be realized by a glass density meter.
1. Wide measuring range: one instrument can directly measure the liquid density in the density range of 0~1999.99kg/m3.
2. Small comprehensive error: due to the reduction of many error factors, the comprehensive error of the instrument is reduced.
3. Small workload: Since there is no work such as conversion, the workload is reduced.
4. Saving resources: each sampling volume is only 2ml, which reduces the waste of sample liquid resources.
5. High degree of automation: the peristaltic pump automatically injects samples and calibrates itself.
6. High cost performance: the quality is comparable to that of similar foreign products, and the price is only one-eighth of that of similar foreign products.
Insert the liquid inlet tube into the liquid sample, press the "sampling" button, the sample liquid is sucked into the vibrating cylinder by the liquid inlet pump, and the temperature is constant, and the density of the liquid is directly displayed after the alarm.