There are a large number of electrical equipment in the power system, factories, mines, and enterprises, and their internal insulation is oil filled insulation. During the oxidation process of oil products, not only acidic substances are produced, but also water is generated. The water-soluble acids have a strong corrosive effect on metals, and the presence of water-soluble acids plays a catalytic role in the continued oxidation of oil products, accelerating the corrosion of solid insulation materials of electrical equipment and directly affecting the service life of electrical equipment. Regularly measuring the amount of water-soluble acids in oil products is an important method for monitoring the quality of oil products.


The KDSR-303A automatic water-soluble acid tester produced by our company adopts a large screen color LCD display and is controlled by a microprocessor. It can automatically complete heating, constant temperature, oscillation, sampling, testing, cleaning, printing and other functions according to the user's set conditions. It can measure 1-3 samples at once, shorten the user's testing time, improve work efficiency, and reduce the labor intensity of the staff; And it supports wireless transmission function.

1. The KDSR-303A automatic water-soluble acid tester is controlled by a microcontroller and can automatically complete a series of operations such as heating, constant temperature, oscillation, static discharge, sampling, colorimetric testing, cleaning, data display, and report printing;
2. Adopting an 800 × 480 point color touch screen LCD display, with complete prompts and simple operation. Using a thermal printer for better printing results;
3. This instrument can test three samples at once, saving testing time; You can choose the indicator for testing or set the order of testing;
4. Equipped with water quality correction function;
5. It can communicate with the upper computer through wireless transmission. (Optional)

Measurement range (pH value): 3.6-7.0;
Minimum display unit (pH value): 0.1;
Constant temperature accuracy: ± 2 ℃;
Measurement error: ≤± 0.1pH, repeatability less than or equal to 0.1Ph;
Vibration mode: reciprocating;

Working conditions
Environmental temperature: (5-45) ℃
Relative humidity: ≤ 85%
Power supply voltage: AC220V ± 22V, frequency: 50Hz ± 1Hz