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Introduction
HT-225DS Digital Rebound Apparatus is a product designed according to Technical Regulations for Concrete Compressive Strength Test by Rebound Method (JGJ/T23-2001) (hereinafter referred to as Regulations) and developed in order to meet actual requirements for the field test of concrete compressive strength, applicable to the non-destructive testing of common concrete compressive strength in all kinds of construction engineering. It is specifically applicable to the on-site quality sampling inspection by Engineering Quality Supervision Institutions and Supervising Units, for the compressive strength test result of the inspected concrete structure can be got immediately; when the Construction Quality Testing Institution carries out on-site test for real construction objects, it can further reflect the fairness, scientificity and accuracy of the
test, greatly improving the working efficiency of testing, data processing and inspection report formation.
Structure of Concrete Test Hammer
The Concrete Test Hammer is mainly composed of flip system, value-indicating system and shell component.Its structure is shown in Fig.1. The diagram shows the state that the impact hammer has finished impact in the test and the pushbutton has locked the movement,ie.retaining state of resilience value.
Key feature
High contrast OLED display
All setup can be made on site
Automatic calculating compressive strength
Automatic correc tion of impac t direc tion
All data will be stored in memor y
All data can be transferred to PC by USB cable or Bluetooth
Dual display for analogue ruler and digital value
Digital/Mechanical 2-in-1
Specification
Model | HT-225DS | HT-225D | HT-75D | HT-20D |
Type | Digital/Mechanical 2-in-1 | Digital Only | ||
Display | OLED digital | |||
Measuring range | 10-100N/mm2 | 1-25N/mm2 | ||
Accuracy | ±0.1R | |||
Impact energy | 0.225kgm (2.207Nm) for testing ordinary building and bridge construction | 0.075kgm (0.735Nm) for testing small and impact-sensitive parts of concrete or artificial brick | 0.020kgm (0.196Nm) for testing mortar products | |
Communication | USB2.0 or Bluetooth | |||
Printing | Bluetooth micro printer (optional) | |||
Storage | 1000 parts, 256 data for each part | |||
Operating temperature | -40º-60ºC | |||
Power supply | 3.7V Li-ion rechargeable battery charged via USB port | |||
Dimension (mm) | 280x75x60 |
Standard package
HT-225DS/HT-225D/HT-75D/
HT-20D
main unit 1
Grinding wheel 1
USB cable 1
USB charger 1
Software CD 1
Operation manual 1
Carrying case 1