characteristic 1. Using computer intelligent control, laser automatic detection, LCD touch screen human-machine interface, screw stepper motor lifting and other technologies, it has the characteristics of linear heating, uniform bath mixing, automatic sample detection and so on. It is a high degree of automation, fast and convenient test, accurate and reliable test results of plaster softening point instrument. 2. The instrument heats the solution medium and plaster through a heating tube, and the temperature in the beaker is uniform by stirring with a magnetic stirrer. The controller uses interpolation algorithm to control the output, so that the medium rises linearly according to 1.0 ~ 1.5 ℃ / min. The plaster in the test ring began to soften slowly during the heating process. When it reached the softening temperature point, the plaster in the sample ring decreased slowly in the form of water drops under the gravity of the steel ball. When the plaster in the two sample rings decreased and contacted the lower baffle, the average temperature was the softening point temperature of the plaster. 3. The instrument is mainly composed of chassis bracket, touch screen human-machine interface, screw lifting system, heating and heating adjustment system, laser detection system, magnetic stirring system, etc. 4. In order to facilitate the test operation and the smooth lifting of the components in the beaker, a test platform is designed. The test components are suspended and positioned on the test platform. The test platform and the test components are driven by the lead screw to drop steadily and position accurately, so that the light column of the laser beam is close to the upper side of the lower baffle. 5. The experiment process has animation simulation display, touch operation, human-computer interaction interface, which is more intuitive and convenient. 6. Temperature control adopts slope interpolation algorithm, accurate temperature rise, program control and real-time temperature control. 7. The separated magnetic stirring adopts stepless speed regulation, which makes the temperature more uniform. 8. It has strong anti-interference ability and high sensitivity. Technical parameters: 1. Measurement range A. If the softening point of the sample is below 80 ℃, 5 ℃ - 80 ℃ (distilled water). B. When the softening point of the sample is above 80 ℃, 32 ℃ - 162 ℃ (glycerin). 2. Temperature resolution: 0.1 ℃ (the deviation can be corrected). 3. Heating tube power: 700W. 4. Heating slope: 1.0-1.5/min. 5. Beaker size: diameter 110mm, height 130mm. 6. Measure the number of samples: Measure 2 samples at the same time. 7. Agitator: magnetic stirring, stirring speed continuously adjustable. 8. The test results are processed and 200 groups of data are stored. 9. The stored data can be accessed and displayed by LCD, or transferred to U disk to view (. CSV file). 10. Optional micro printer to print results. 11. Communication interface, RS-485 communication interface, MODBUS protocol. 12. The overall dimension is 57390mm × 575mm. 13. The working power supply is 220 ± 10% VAC / 50 Hz. 14. The maximum power of the whole machine is 800W. 15. The net weight of the whole machine is 12.0kg.
characteristic 1. Using computer intelligent control, laser automatic detection, LCD touch screen human-machine interface, screw stepper motor lifting and other technologies, it has the characteristics of linear heating, uniform bath mixing, automatic sample detection and so on. It is a high degree of automation, fast and convenient test, accurate and reliable test results of plaster softening point instrument. 2. The instrument heats the solution medium and plaster through a heating tube, and the temperature in the beaker is uniform by stirring with a magnetic stirrer. The controller uses interpolation algorithm to control the output, so that the medium rises linearly according to 1.0 ~ 1.5 ℃ / min. The plaster in the test ring began to soften slowly during the heating process. When it reached the softening temperature point, the plaster in the sample ring decreased slowly in the form of water drops under the gravity of the steel ball. When the plaster in the two sample rings decreased and contacted the lower baffle, the average temperature was the softening point temperature of the plaster. 3. The instrument is mainly composed of chassis bracket, touch screen human-machine interface, screw lifting system, heating and heating adjustment system, laser detection system, magnetic stirring system, etc. 4. In order to facilitate the test operation and the smooth lifting of the components in the beaker, a test platform is designed. The test components are suspended and positioned on the test platform. The test platform and the test components are driven by the lead screw to drop steadily and position accurately, so that the light column of the laser beam is close to the upper side of the lower baffle. 5. The experiment process has animation simulation display, touch operation, human-computer interaction interface, which is more intuitive and convenient. 6. Temperature control adopts slope interpolation algorithm, accurate temperature rise, program control and real-time temperature control. 7. The separated magnetic stirring adopts stepless speed regulation, which makes the temperature more uniform. 8. It has strong anti-interference ability and high sensitivity.
