1. The megohmmeter should be placed in a fixed location when not in use. The ambient temperature should not be too low or too high. Never place the Megger on a damp, dirty floor and avoid placing it in air containing harmful gases, such as acids and alkalis. Violent, long-term vibration should be avoided as much as possible to prevent the damage of the meter and pointer from affecting the accuracy of the meter. 2. The wires connecting the terminal to the object to be measured cannot be twisted. They should be connected separately to prevent the reading from being affected by poor insulation of the strand. 3. Equipment containing large capacitors should be discharged before measurement to ensure equipment and personal safety. 4. In the case of lightning and high-voltage equipment, it is forbidden to use the megger to measure. Only when the equipment is not charged and cannot be charged by other power sources can the meter be used for measurement. 5. When using a megohmmeter for measurement, press and hold the megohmmeter to prevent the megohmmeter from shaking when turning the rocker. 6. When turning the joystick handle, it will be slower and faster. If the pointer is zero, do not continue to force it to prevent the internal coil of the megohmmeter from being damaged. 7. When measuring, do not twist the two test leads together to avoid inaccurate measurement data. Do not touch the measurement part of the test object or remove the wire beforehand to prevent electric shock. 8. Immediately after the measurement is completed, the device under test shall be discharged, and the joystick of the megohmmeter will not stop rotating and the device under test. Easy Electronic Technology Co.,Ltd , https://www.yxpcelectronicgroups.com