YJ-2102H Fully Automatic Plaster Softening Point Tester
Contact Info
- Building 1, No. 5500 Yuanjiang Road, Minhang District, Shanghai,
- 高洁
- 13761436048
- 3982822529@qq.com
YJ-2102H Automatic Plaster Softening Point Tester Introduction:
This instrument is designed in accordance with the requirements of the Plaster Softening Point Determination Method in General Rule 2102 of Volume 4 of the Chinese Pharmacopoeia (2025 Edition). It measures the temperature at which a plaster softens when heated under specified conditions, specifically the temperature when the plaster sags by 25 mm due to heat. This value is used to assess the consistency of the plaster and indirectly reflects its viscosity. The instrument is suitable for use by various plaster manufacturers, drug inspection institutes, and related institutions.
I. Main Technical Features
1. The YJ-2102H Automatic Plaster Softening Point Tester adopts technologies such as intelligent computer control, automatic laser detection, a liquid crystal touch screen human-machine interface, and ball screw stepper motor lifting. It features linear temperature rise, uniform bath solution stirring, and automatic sample testing. It is a high-automation, fast, convenient, and accurate instrument for determining the softening point of plasters.
2. The instrument heats the solution medium and the plaster via a heating tube. A magnetic stirrer ensures uniform temperature in the beaker. The controller uses an interpolation algorithm to regulate output, maintaining a linear temperature rise of 1.0–1.5°C per minute. During heating, the plaster in the test ring gradually softens. When the softening point is reached, the plaster in the sample ring slowly descends in a droplet shape under the gravity of the steel ball. The average temperature when the plasters in both sample rings contact the lower baffle is defined as the plaster softening point.
3. The instrument mainly consists of a chassis bracket, touch screen human-machine interface, ball screw lifting system, heating and temperature regulation system, laser detection system, and magnetic stirring system.
4. To facilitate test operations and the stable lifting of components in the beaker, a test platform is designed. Test components are suspended and positioned on the platform, which is driven by a ball screw to descend smoothly with precise positioning, ensuring the laser beam of the opposite射 laser is close to the upper side of the lower baffle.
5. The test process features animated simulation display and touch operation, providing a more intuitive and convenient human-machine interaction interface.
6. Temperature control uses a slope interpolation algorithm for precise temperature rise, program control, and real-time temperature monitoring.
7. The split-type magnetic stirrer adopts infinite speed regulation, ensuring more uniform temperature distribution.
8. The opposite射 laser automatically detects and judges sample falling, with strong anti-interference ability and high response sensitivity.
II. Main Technical Indicators and Parameters
1. Measuring Range
A. For samples with a softening point below 80°C: 5°C–80°C (using distilled water).
B. For samples with a softening point above 80°C: 32°C–162°C (using glycerol).
2. Temperature Resolution: 0.1°C (deviations can be corrected).
3. Heating Tube Power: 700W.
4. Heating Slope: Stable heating rate of 1.0–1.5°C/min.
5. Beaker Dimensions: Diameter 110 mm, height 130 mm.
6. Number of Measured Samples: 2 samples simultaneously.
7. Stirrer: Magnetic stirring, with continuously adjustable stirring speed.
8. Test Result Processing: Storage of 200 sets of data.
9. Stored data can be retrieved and displayed on the liquid crystal screen, or transferred via U disk for viewing (in .csv files).
10. Optional mini printer for printing results.
11. Communication Interface: RS-485 interface, ModBus protocol.
12. External Dimensions: 390 mm × 300 mm × 575 mm (length × width × height).
13. Operating Power Supply: 220±10% VAC/50 Hz.
14. Total Power Consumption: Maximum 800W.
15. Net Weight: 12.0 kg.
16. Operating Environment:
A. Temperature: 15°C–35°C, relatively stable with no significant air convection;
B. Humidity: ≤85%.
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