When using a heavy hammer electrostatic tester, it is necessary to comprehensively control it from five aspects: environment, equipment, operation, safety, and maintenance. Specific precautions are as follows:
1、 Environmental requirements
Temperature and humidity control: The ambient temperature should be maintained at around 20 ° C, and the relative humidity should be controlled at around 50% to avoid high or low humidity affecting the test results.
Non interference environment: The testing area should be kept clean, free from static electricity or other power interference, to ensure the accuracy of the test data.
Dry environment: For scenarios that require testing the electrostatic potential of the ground or buildings, it is important to ensure that the testing site is dry and avoid high levels of water or humidity that may affect the test results.
2、 Equipment preparation
Discharge operation: Before use, a discharge rod should be placed into the measurement area to discharge the object to be tested, resetting its charge to zero and preventing residual charges from interfering with the test.
Choose a heavy hammer: Select the appropriate heavy hammer based on the size and weight of the test substance to ensure the accuracy of the test. Choosing an inappropriate heavy hammer can have an impact on the measurement results.
Surface treatment: Before testing, it is necessary to remove the accumulated dust and impurities on the surface of the tested object to prevent interference with the test results.
Equipment calibration: Regular calibration is required after approximately 100 uses to ensure the accuracy of test results.
3、 Operating standards
Interval testing: It is necessary to maintain intervals between different items to prevent residual charges between samples from affecting the next test sample. It is generally recommended to test the interval between two items for 5-10 minutes.
Stable measurement: Wait for the heavy hammer electrostatic potentiometer to reach a stable state with the ground or building before reading the test results to ensure the accuracy of the data.
Multiple testing: Conduct multiple tests at different locations around the testing site to ensure the accuracy of the results. If there are significant differences, repeat the test or move the test location.
Correct reading: For instruments that display surface impedance, it is important to note that the actual impedance value is the reading on the LCD screen multiplied by 10 (in ohms/□).
4、 Safety precautions
Power check: Before operation, check if the power switch of the tester is turned off to ensure safe operation.
Combustible substances: There should be no combustible substances around the tester to prevent accidents.
Avoid contact: During measurement, direct contact with the probe or sensor should be avoided to reduce errors and prevent electric shock.
Professional operation: Heavy hammer electrostatic testing has a certain degree of professionalism, and it is recommended to be operated by professionals or experienced technicians.
5、 Maintenance and upkeep
Regular cleaning: Regularly clean the testing area, replace electrodes and other components to ensure the accuracy of the test results.
Avoid collisions: During use, attention should be paid to avoiding collisions, vibrations, and other operations to prevent inaccurate test results.
Proper storage: Proper storage is required when not in use to avoid inaccurate measurement data due to the pressure of heavy objects.
Dustproof treatment: For testers that have not been used for a long time, they should be cleaned and dust-proof treated.