To ensure accurate test results, standardized operation, and prolonged service life of the instrument, this document details the core operating procedures of the Leeb Hardness Tester HLN110, including installation, power on, parameter adjustment, and hardness measurement, providing standardized operating instructions for operators.
Installation and Power-on
1.Complete the adaptive installation between the main unit and the test probe of the Leeb Hardness Tester N110, ensuring a firm connection with no looseness or poor contact.
2.Check the power supply status of the instrument, confirming that the batteries are properly installed or the external power supply is connected normally.
3.Press the power-on button of the instrument, wait for the system to start up completely and enter the initial operation interface, preparing for subsequent parameter adjustment.
Parameter Setting
1.After power-on, press the MATL and HARO keys to enter the parameter setting mode.
2.Set the material type according to testing requirements, and select the corresponding category (e.g. Steel and Cast).
3.Adjust the hardness unit; scales such as HLD and HL can be switched as needed to meet the testing standard.
4.Set auxiliary parameters including measuring times (COUNT) and test direction. After confirming all parameters are correct, save and exit the parameter setting mode. The instrument will return to the ready state for testing.
Hardness Value Measurement
1.Place the test probe vertically against the flat surface of the workpiece to be tested, ensuring tight contact without tilting, to avoid inaccurate test results caused by improper contact.
2.Push the impact device gently downward.
3.Lightly press the test trigger button on the probe to complete a single hardness test; the instrument will automatically display the single hardness value.
4.If multiple measurements are set, the instrument will perform continuous tests according to the preset times and automatically record each test data.
5.After testing, the instrument can display hardness data such as single value and average value, which the operator can view and record.
Due to its dynamic measurement principle, the Leeb hardness tester is more suitable for workpieces with a certain thickness and weight. For thin or small workpieces, please follow the static measurement principle of bench-top hardness testers.
Post time: Feb-28-2026
