I. Introduction

• The instrument conforms to ASTM D36 Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)

• 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.

•  It is an automatic, convenient, reliable and intelligent instrument for softening point determination. 

II.Main technical data
1. Power supply: AC 220 V(-5%~+10%), 50 Hz
2. Measurement range:
(1) If the softening point of the sample is under 80 °C with the distilled water as the heating medium, the measurement range is +5 °C~+80 °C
(2)If the softening point of the sample is over 80 °C with the glycerin as the heating medium, the measurement range is +32 °C~+160 °C
3. Temperature resolution: 0.01 °C
4. Stirrer: The stirring speed can be adjusted continuously
5. Heating speed: It will be adjusted to 5.0±0.5 °C/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 °C and stable without air convection
11. Relative humidity: ≤85%
12. Total power consumption: ≤700 W