Common Issues with Rotary Compaction Meters

　　The rotary compactor is primarily used to determine the mechanical and volumetric properties of hot-mix asphalt mixtures. It is a key piece of equipment for asphalt mixture testing within the high-performance Superpave pavement technology system. Featuring fully automatic microcontroller-based load control, electronic force measurement via gravity sensors, and an LCD display—let’s now take a closer look at some common issues with rotary compactors!

　　Precautions for using the rotary compaction tester:

　　1. When using the equipment, please read the technical manual carefully to familiarize yourself with the technical specifications, operational performance, usage methods, and precautions. Operate the machine strictly according to the steps specified in the user manual.

　　2. Personnel using the equipment for the first time must operate under the guidance of experienced personnel and may only perform independent operations once they have become proficient.

　　3. The instruments, equipment, and materials used in the experiment should be arranged and laid out reasonably and neatly, facilitating operation, observation, and data recording.

　　4. Before powering on electronic devices, ensure that the supply voltage matches the device’s specified input voltage rating. For devices equipped with three-wire power plugs, they must be plugged into power outlets with protective grounding to ensure safety.

　　5. When using the equipment, its input signal or external load should be kept within the specified range, and overloading is strictly prohibited.

　　6. For optical and chemical instruments and their accessories, handle them with care to avoid vibrations. Do not touch the surfaces of optical glass with your hands. If you notice dust or stains, do not attempt to wipe them off with your hands or a cloth. Be sure to use specialized cleaning products or tools for removal.

　　The rotary compactor is easy to operate:

　　Press the individual control button below to lower the piston (punch), adjust the compaction angle, and record the data. Each specimen is produced under consistent conditions—specific compaction pressure, angle, and rotation speed. You can also easily modify these parameters by selecting from the drop-down menu as prompted.

　　Operator safety and low noise:

　　To ensure the safety of operators, the rotary compactor is designed so that all rotating components are housed below the surface of the workbench and kept well away from personnel. Safety switches are installed on the doors and access panels to further safeguard operators during the movement of test specimens. The software continuously monitors operations. The compactor is easy to install. Its compact size allows it to pass through any standard door or doorway. For 110V AC power, the device requires only 10 amps. When operating at 220V, the motor consumes less power, making it even more efficient. Unlike other compaction equipment and Marshall impact testers, this compactor operates quietly.

　　The rotary compaction system is equipped with comprehensive protection features and is capable of operating under complex working conditions. The rotary compactor uses an 8-inch industrial touch screen as the human-machine interface, featuring a clear and highly visible user interface with a Chinese-language menu. It offers simple operation parameter settings and provides real-time display of process data, such as rotation speed, instantaneous pressure, displacement data, and density change curves. A computer interface is also provided, enabling users to download system test data from a computer and save it in Excel format as spreadsheets or trend charts for printing and other purposes.