There are three E.L.G buttons on the alpha European case. When measuring, E is what,.L is what, and.G is what
500V is also called insulation resistance meter. It is an instrument to measure the insulation performance of insulating material. When measuring, it should be chosen according to the voltage level of the tested material. For example, the general 380V motor chooses the "euro"
The measurement also note that both before and after the measurement to be test substance discharge, shaking speed of 120 RPM / min, the measurement process of found objects breakdown, showing the number of suddenly to zero, should immediately stop shaking. The measurement of inductance and capacitance and other equipment, in 1 minutes to read the indicated values of the measurement end wiring should be removed at rated speed, so as to avoid the capacitance on the discharge meter meter is damaged.
The L represents the phase line, and the motor, for example, is connected to the winding of the motor;The E represents the ground and the motor housing;G said the general measurement of shielding, without having to take, but the surfaces have to be connected when the leakage current on the surface leakage current, to reduce the error caused by leakage current. For example, in measuring insulation resistance of cable should be connected to the shielding layer.
