1. Two-way communication between the computer and the controller implements comprehensive monitoring of the control equipment.
2. Automatically control and display the heating temperature of single furnace or double furnace.
3. Automatically measure and display the shrinkage of coal samples from single or double furnaces.
4. Automatically draw the curve of furnace temperature change with time.
5. Automatically draw the volume curve of double furnace or single furnace;
6. Automatically fill in the furnace temperature every 10 minutes.
7. Alarm at the inflection point of the volume curve to remind the laboratory personnel to open, stop, silence and run the equipment.
8. Manually detect the rubber surface data and input it into the computer through the keyboard.
9. Automatically draw the upper and lower rubber surface curves and calculate the rubber surface and large thickness.
10. Automatically calculate test results, and print out test records and reports.
11. Store test data for query and printing.
12. It can control the heating speed of the front and rear furnace at the same time, or it can be controlled separately.
JC-8 microcomputer gum layer tester is a special instrument for measuring the gum layer index of bituminous coal (three indexes, such as big thickness Y, final shrinkage X and volume curve type, etc.). Meet the requirements of GB/T479-2000 "Method for determination of gum layer index of bituminous coal". The instrument has advanced technical level at home and abroad, simple operation, accurate data analysis and so on. The controller is composed of two separate systems, which can control two sets of heating furnaces at the same time, and can also control one set of heating furnaces separately. It can be widely used in coal, metallurgy, chemical industry, geological exploration and other departments.
Measurement principle
The large thickness of the gummy body (softened plastic body) measured under specified conditions (heating rate 3℃/mln, under pressure of 9.8×l04 Pa, with specific coal cup and unilateral heating method) is the large thickness y value of the gummy layer (mm), and the distance between the termination position and the starting position is the final shrinkage X value (mm). The volume change curve recorded on the graph paper during the heating process is the type of volume curve.
1. Power supply voltage: AC220V ± 5,50 Hz
2. Temperature measurement range :0-999℃
3. Control power: ≤5KW
4. Controller accuracy: 0.5 level
5. Accuracy: 160min drawing length 160±2mm
6. Temperature control: reach 250℃ in 30min, 250℃ rises by 3℃ per minute
Seven. Timing error: ±30 seconds /24 hours
8. Temperature resolution :1℃
9. With K value thermocouple
10. Temperature measurement error: ±3℃
11. Control current: 12A Max
12. Working mode: can work continuously
13. Record cylinder: Stone English record
14. Line speed: 1mm/min
Fifteen. Measurement accuracy: meet the requirements of GB/T479P-2000
