H61 impact-echo tester for one-sided thickness measurement and internal defect detection in concrete slabs, walls and linings.
Overview
The H61 impact-echo thickness tester works on the Impact-Echo (IE) method for non-destructive thickness measurement and internal defect detection in concrete. A small steel ball impacts the surface, generating transient stress waves that reflect off the back face or internal defects and are received by a surface accelerometer; the host performs FFT on the signal and derives thickness from the dominant frequency, or identifies voids, honeycombing and delamination. It is used on concrete slabs, tunnel linings, pavements, bridge box girders and retaining walls; single-sided access suffices. A standard NDT instrument for bridge, tunnel and municipal structure inspection.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Principle | Impact-Echo (IE) |
| Thickness range | 50–1100mm |
| Signal | built-in FFT spectrum analysis |
| Display | colour LCD, 640×480 |
| Memory | up to 20,000 readings |
| Power | built-in rechargeable Li-battery, approx. 8h |
| Operating temp. | -10 to +50°C |
| Sensor | high-sensitivity accelerometer with impact ball |
| Interface | USB / serial upload |
| Set | host, accelerometer, impact balls, charger, resin case |
| Applications | slabs, linings, box girders, pavements, walls |
| Detectable | voids, delamination, honeycombing, poor compaction |
| Access | single-sided, no opposite access required |
| Standard | CECS 02, ASTM C1383 etc. |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the H61 Impact-Echo Thickness and Defect Tester comply with?
A1: The H61 Impact-Echo Thickness and Defect Tester is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the H61 Impact-Echo Thickness and Defect Tester be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The H61 impact-echo thickness tester works on the Impact-Echo (IE) method for non-destructive thickness measurement and internal defect detection in concrete. A small steel ball impacts the surface, generating transient stress waves that reflect off the back face or internal defects and are received by a surface accelerometer; the host performs FFT on the signal and derives thickness from the dominant frequency, or identifies voids, honeycombing and delamination. It is used on concrete slabs, tunnel linings, pavements, bridge box girders and retaining walls; single-sided access suffices. A standard NDT instrument for bridge, tunnel and municipal structure inspection.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Principle | Impact-Echo (IE) |
| Thickness range | 50–1100mm |
| Signal | built-in FFT spectrum analysis |
| Display | colour LCD, 640×480 |
| Memory | up to 20,000 readings |
| Power | built-in rechargeable Li-battery, approx. 8h |
| Operating temp. | -10 to +50°C |
| Sensor | high-sensitivity accelerometer with impact ball |
| Interface | USB / serial upload |
| Set | host, accelerometer, impact balls, charger, resin case |
| Applications | slabs, linings, box girders, pavements, walls |
| Detectable | voids, delamination, honeycombing, poor compaction |
| Access | single-sided, no opposite access required |
| Standard | CECS 02, ASTM C1383 etc. |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the H61 Impact-Echo Thickness and Defect Tester comply with?
A1: The H61 Impact-Echo Thickness and Defect Tester is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the H61 Impact-Echo Thickness and Defect Tester be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
