Overview
The HP-40 automatic concrete penetration meter is an upgraded product launched by the RONGJIDA brand, dedicated to the professional detection of concrete penetration performance. The instrument adopts microcomputer control, and the performance of pressurization, sealing and pressure holding has been significantly improved. The control accuracy is high, the response speed is fast, the technical performance is stable and reliable, and the operation is convenient.
Features
1, the use of microcomputer control, replacing the traditional electrical contact pressure gauge and electrical control part, Degree of automation.
2. There is no need to manually adjust the pressure every eight hours to achieve automatic constant pressure (the digital display type can automatically maintain constant pressure and automatically increase pressure).
3, high control accuracy, fast response speed, stable and reliable technical performance.
4. Circuit and panel design are reasonable and easy to operate.
5. Six specimens can be tested simultaneously.
Principle
Control system is used to drive the plunger pump to apply pressure to the water, and the pressure is applied to the concrete specimen steadily and continuously to detect the ability of concrete to resist pressure and water permeability.
Applications
Concrete professional testing
Steps
1. Be sure to read the instructions carefully before use.
2. Operate by professional experimenters according to the instructions.
Notice
It must be operated by professional experimenters to avoid injuries caused by improper operation.
* Environmental requirements: ambient atmospheric temperature is 5 ℃ -45 ℃; relative humidity < 80%, and should not work in a corrosion gas environment for a long time.
The water source should be clean and free of impurities.
The power box lubricating oil needs to be replaced every six months with No. 20 or No. 30 mechanical lubricating oil, and the amount of oil is subject to the center line of the spindle (about 600ml).
Check the bottom of the power box every six months for water accumulation and determine whether the sealing ring of the pump is damaged. If damaged, it needs to be replaced.
* If the Ambient Temperature is below 0 ° C, all water sources in the system need to be emptied to prevent icing damage to the parts.
If the system pressure starts for a long time, it may be that there is air in the pipeline, and the air should be discharged according to the method of first use.
* If there is no pressure in the system, usually the sealing ring in the pump is abrasion, resulting in lax sealing, and the sealing ring needs to be replaced.
