How to Maintain Your Langry RH-225A Concrete Test Hammer Malaysia
How to Maintain Your Langry RH-225A Concrete Test Hammer Malaysia
Introduction
Proper maintenance is essential to keep your Langry RH-225A Concrete Test Hammer performing accurately for many years. Although the RH-225A is built for demanding construction environments, regular care and periodic calibration will help maintain consistent rebound readings and reduce unexpected downtime.
Whether you are a contractor, consultant, testing laboratory, or building inspector, following these simple maintenance practices will maximise the lifespan of your equipment.
Why Is Regular Maintenance Important?
A well-maintained concrete test hammer offers:
More consistent rebound readings
Improved inspection reliability
Longer service life
Reduced repair costs
Better compliance with quality assurance procedures
Routine maintenance also helps identify wear before it affects measurement accuracy.
1. Keep the Test Hammer Clean
After each inspection:
Wipe the exterior with a clean, dry cloth.
Remove dust, cement residue, and debris.
Avoid allowing dirt to enter the impact mechanism.
Keeping the instrument clean helps ensure smooth mechanical operation.
2. Store It in a Protective Carrying Case
Always store the RH-225A in its carrying case when not in use.
Avoid exposing the instrument to:
Direct sunlight for extended periods
High humidity
Heavy rain
Extreme temperatures
Excessive vibration during transport
Proper storage helps protect the internal mechanism.
3. Avoid Dropping the Instrument
Although the RH-225A is designed for site use, dropping the hammer can affect its mechanical accuracy.
If the instrument has been subjected to a strong impact:
Inspect it for visible damage.
Perform a functional check.
Arrange calibration if the readings appear inconsistent.
4. Inspect Before Every Job
Before starting work, check:
Smooth hammer movement
Proper impact release
Clean contact tip
No loose or damaged components
A quick inspection helps prevent inaccurate measurements during critical projects.
5. Calibrate Periodically
Even when the instrument appears to function normally, periodic calibration is recommended.
Calibration helps:
Verify measurement accuracy
Detect internal wear
Maintain reliable testing performance
Meet project quality requirements
For contractors who use the instrument frequently, annual calibration is a good practice.
6. Use the RH-225A Correctly
To obtain the best performance:
Test only on sound concrete surfaces.
Hold the hammer perpendicular to the test area.
Perform multiple readings and calculate the average.
Follow recognised testing standards.
Correct operating procedures reduce unnecessary wear and improve measurement consistency.
Why Choose the Langry RH-225A?
The Langry RH-225A is trusted by professionals because it provides:
Durable mechanical construction
Stable and repeatable rebound readings
Easy one-handed operation
Low maintenance requirements
Reliable performance for daily field inspections
It is suitable for construction companies, consultants, laboratories, government agencies, and infrastructure maintenance teams.
MTM Precision Maintenance & Calibration Support
MTM Precision not only supplies the Langry RH-225A but also provides comprehensive after-sales support, including:
Instrument inspection
Preventive maintenance
Calibration services
Technical consultation
Product support
Our experienced team is committed to helping customers maintain accurate and reliable testing equipment.
Contact MTM Precision Sdn Bhd
Website: www.mtmpre.com.my
Email: mtmpre@yahoo.com
WhatsApp: +6016-660 7346
04 Aug 2026
