First, it is necessary to judge whether the shoes are anti-static shoes and whether the resistance is within the standard range: anti-static shoes are made of anti-static materials added to the soles. Anti-static shoes have a weak conductive function, which can remove excess electric charge from the human body. Lead to the ground to avoid electrostatic discharge from accumulating charges, thereby eliminating static electricity from the human body. Anti-static shoe resistance should be between 100K ohms to 1000M ohms.
Second, it is necessary to confirm whether the resistance range of the tester of the anti-static gate is within the national standard range. Generally, the workshop settings: electrostatic shoes + human body: 500 kohms --> 100 megohms
Third, it is necessary to check whether the ground wire is connected well? Is it false? Is it live? If it is not easy to judge, you can directly clip the ground wire of the electrostatic meter to the back of the upper cover of the anti-static gate, install the stud of the electrostatic meter (4 studs, just clip one), and then see if you stand on the ground, whether Passable: If this cannot pass, it is a problem with the ground wire.
Fourth, check the pedals, whether the surface is contaminated (damp, dust, or cleaned with chemical cleaners)