I. Summary:
The instrument is designed and made as per the National Standard of People's Republic of China GB/T4507 "Test Method for Softening Point of Asphalt", and T0606 "Asphalt Softening Point Test (Ring and Ball Method)" in the Industry Standard of People's Republic of China JTJ052 Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering. It is suitable to determine the softening point of bituminous materials such as asphalt, coal pitch, and liquid asphalt, etc. It is the best choice of asphalt manufacture companies, highway and bridge construction companies and related colleges and research institutes.

It adopts computer controlling technology, electron photo-electricity measurement technology, LCD and micro-printer, and has the characteristics of linear heating temperature, uniform stirring speed, simultaneous four samples determination, and automatic softening point detection, so it is an automatic, convenient, reliable and intelligent instrument for softening point determination. It is the best choice of asphalt manufacturing companies, highway and bridge construction companies, college and universities, and scientific institutes.



II. Main technical specifications and parameters:
1. Power supply: AC 220 V(-5%~+10%), 50 Hz
2. Measurement range:
(1) If the softening point of the sample is under 80 ºC with the distilled water as the heating medium, the measurement range is +5 ºC~+80 ºC
(2)If the softening point of the sample is over 80 ºC with the glycerin as the heating medium, the measurement range is +32 ºC~+160 ºC
3. Temperature resolution: 0.01 ºC
4. Stirrer: The stirring speed can be adjusted continuously
5. Heating speed: It will be adjusted to 5.0±0.5 ºC/min
6. Softening point result: LCD indication and it can be printed by the printer
7. Heating power: 600 W
8. Interface: RS-232C interface
9. Beaker cubage: 1000 ml
10. Ambient condition: the room temperature should be less than 35 ºC and stable without air convection
11. Relative humidity: ≤85%
12. Total power consumption: ≤700 W



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