Calibration device for asphalt softening point tester

Name 1: JW-RH TypeCalibration device for asphalt softening point tester
2、 JW-RH Asphalt Softening Tester Heating Rate Detection Device
3、 JW-RH Asphalt Softening Point Tester Temperature Standard Detection Device

1、 Purpose:
It is designed and produced according to the JJG (Transportation) 057-2017 Asphalt Softening Point Tester Verification Regulations, including a heating rate detection device and a softening point temperature standard detection device, designed to meet the requirements of the specifications and serve the metrology and testing industry
2、 Technical indicators
1. Heating rate detection device
Temperature measurement range: (0-200) ℃,
Division value: 0.01 ℃
Maximum allowable error: ± 0.2 ℃
Collection duration: greater than 900s
The time division value is 0.1S
Maximum allowable error: ± 0.1S
2. Softening point temperature standard detection device
Measurement range (0-200) ℃
Division value: 0.01 ℃
Maximum allowable error: ± 0.2 ℃,

IIICalibration device for asphalt softening point testerOperation instructions
1、 Calibration operation of heating rate for asphalt softening point tester
1. Install asphalt softening point tester, add water or glycerin to the designated position
2. Place the asphalt softening point tester sensor on the shoulder ring support plate, and place the calibration device sensor in a glass beaker
3. Turn on the asphalt softening point tester and the standard apparatus at the same time
4. The instrument automatically counts time, collects temperature once per minute, saves it automatically, and can be queried to calculate the heating rate according to standard requirements.

2、 Verification operation of temperature indication error of asphalt softening point tester
1. Install asphalt softening point tester and add water to the designated position
2. Place the asphalt softening point tester sensor on the shoulder ring support plate, and place the calibration device sensor in a glass beaker
3. Place the standard dropping device in the container and adjust it to a distance of 25mm from the lower support plate
4. Turn on the asphalt softening point tester and the standard apparatus at the same time
5. When the standard falling device descends by 25mm (touching the upper and lower support plates), the calibration device automatically records the standard temperature at this moment. The comparison between the two is calculated according to the regulations and specifications, and the error in the value can be calculated.
4、 Advantages
Overcoming the shortcomings of low accuracy in the calibration of asphalt softening point meters in existing technologies. The asphalt softening point meter includes a temperature sensor to be calibrated and a container. The calibration device includes a temperature sensor for detection, which is set in the container together with the temperature sensor to be calibrated and used for temperature collection separately from the temperature sensor to be calibrated; Trigger device, set in the container, for generating an analysis moment; An analysis device is used to compare the temperatures collected by the detection temperature sensor and the temperature sensor to be calibrated at the analysis time. The technology has solved the defect of existing technology that cannot monitor the real temperature of the support plate under the contact of steel balls in real time, improved the accuracy and precision of verification/calibration, and reduced the complexity of operation steps