I. Working Conditions:

1. Working environment: 10℃ to 50℃; greater than 90% RH;

2. Working power supply: 220V 50HZ.

II. Product Usage

Can be used for internal defects in concrete materials, dynamic elastic modulus, and can also be used to test high-humidity elastic modulus performance under normal temperature and high humidity environments.

III. Technical Specifications

1. Compliance standards: Meets the requirements of GB/T50082-2009 Standard for Test Methods of Long-term Performance and Durability of Ordinary Concrete, ASTM C 215-14 Standard Test Method for Fundamental Transverse, and other specifications;

2. Calculation of natural vibration period: Automatic calculation/manual calculation, two methods;

3. Frequency measurement range: 100Hz to 200KHz;

4. Controller: Full Chinese screen control;

5. Output power: 0 to 200W;

6. Input impedance: 1.8KΩ;

7. Sample shape: Elongated/square;

8. Measurement repeatability: <0.5%;

9. Environmental control system: Normal temperature control, high humidity environment greater than 90% RH.

III. Standard Configuration

1. Dynamic data processing: Main unit, 1 set;

2. Dynamic data acquisition and transmission: Sensor, 1 set;

3. Normal temperature and high humidity environment: Normal temperature control high humidity environment system, 1 set.