Digital Concrete Test Hammer HT75D For Brick Testing

KEY FEATURES

● High contrast OLED display

● All setup can be made on site

● Automatic calculating compressive strength

● Automatic correction of impact direction

● All data will be stored in memory

● All data can be transferred to PC by USB cable or Bluetooth

● Dual display for analogue ruler and digital value

Specifications

Standard Package

HT-75Dmain unit 1

Grinding wheel 1

USB cable 1

USB charger 1

Software CD 1

Operation manual 1

Carrying case 1

Maintenance
For rebound apparatus, when one of the following situations occurs, routine maintenance shall
be conducted:
Recoiling is over 2000 times
Be skeptical about the test value
Constant value of steel anvil rate is unqualified
Common maintenance methods shall fulfill the following requirements
After getting the recoiling hammer off, get out the internal machine, and remove recoiling rod (get out the inside buffer spring) and triple unit (including recoiling hammer, recoiling tension spring and tension spring base)

Clean all components and parts of the internal machine with gas, especially for central guide rod, inner bore and shock surface of recoiling hammer and recoiling rod.
After cleaning the central guide rod, wipe it with a thin layer of watch oil, while other components and parts shall not be wiped with oil.
Clean the internal wall of shelf, remove graduated scale, and the frictional force of inspection pointer shall be 0.5-0.8N
Can not rotate the zero setting screw fixed on tail hood
Self-made or changing components and parts are not allowed
After maintenance, calibration test shall be conducted according to the requirements,and the calibration value shall be 80±2