Lime water tuning fork density meterIt is an instrument commonly used to measure the density of liquids, which uses the resonance frequency change of a tuning fork to infer the density of the liquid. Utilize the relationship between the resonance frequency of a tuning fork and the density of the measured liquid for density measurement. When a tuning fork is immersed in a liquid, the density of the liquid affects the resonance frequency of the tuning fork. By measuring the change in resonance frequency, the density of the liquid can be inferred.
The lime water tuning fork densitometer has many advantages such as high precision, fast measurement, no need for calibration, wide applicability, real-time display, automated operation, energy saving, and durability, making it the most effective density measurement tool in many industries. By utilizing these advantages, users can more effectively measure density, improve production efficiency and product quality.
Lime water tuning fork density meterIt is an instrument that uses the variation of vibration frequency of a tuning fork in liquids of different densities to measure density, and is suitable for density detection of liquids such as lime water. The operation steps are as follows:
1、 Preparation before operation
Instrument inspection
Check the appearance of the tuning fork densitometer, confirm that the tuning fork sensor is not damaged, the connecting wire is not broken, and the host display screen and button functions are normal.
Calibration instrument: If the measuring environment has not been used or changed for a long time, a standard solution with a known density (such as distilled water, with a density of 1.000g/cm ³ at 20 ℃) should be used for calibration. The calibration procedure should be completed according to the instrument manual (usually by immersing the tuning fork in the standard solution, recording the frequency after stabilization, or directly calibrating it to the standard value).
Sample preparation
Take the lime water sample to be measured, ensuring that there are no obvious precipitates or impurities in the liquid (if there are precipitates, they should be left to settle or filtered first to avoid blocking the tuning fork or affecting vibration stability).
Pour the sample into a clean measuring container, and the liquid level should be high enough to submerge the tuning fork completely (usually submerging the vibrating part of the tuning fork by 1-2cm, subject to the instrument identification).
2、 Measurement operation steps
Installation and fixation
Fix the tuning fork sensor through the bracket, adjust the height so that the tuning fork is vertically immersed in lime water, ensuring that the tuning fork does not touch the container wall or bottom (to avoid interference during vibration).
Connect the sensor to the host, turn on the power, and preheat the device (usually for 5-10 minutes to stabilize the electronic components).
Start measurement
After the instrument is preheated, press the "Measure" button on the host to start the detection program, and the tuning fork will start to vibrate and monitor the frequency change in real time.
Waiting for data stability: Lime water may have slight turbidity, and the display screen value needs to be observed. Record the data when there is no significant fluctuation in the reading for 3-5 seconds (usually fluctuation range ≤ 0.001g/cm ³).
Data recording and repeated measurements
Record the current displayed density value and also record the ambient temperature during measurement (temperature has an impact on liquid density, some instruments can automatically compensate for temperature, if unable to compensate, manual annotation is required).
To improve accuracy, it is recommended to repeat the measurement 3 times and take the average as the final result.
3、 Post operation processing
Instrument cleaning
After the measurement is completed, disconnect the power supply, carefully remove the tuning fork sensor, rinse the surface with distilled water for residual lime water (to avoid blockage or corrosion of the tuning fork due to lime residue crystallization), and then dry it with a soft cloth.
If the concentration of lime water is high, gently wipe off residual calcium carbonate with dilute hydrochloric acid (low concentration) first, and then rinse with distilled water.
Storage and maintenance
Put the sensor and host back into the dedicated packaging box to avoid squeezing or collision.
Record measurement data and instrument status, and regularly maintain according to the instructions (such as checking tuning fork vibration performance, calibration validity period, etc.).