How to correctly use the Binjiang brand BM822A clamp meter
When the jaw is closed in the measurement, if the noise is closed, the jaw can be opened once again. If the noise is still unable to be removed, the joint surface shall be checked whether it is bright and clean and clean when there is dirt or dirt.
Because the clamp table itself is of low precision, small current measurement, can adopt the following methods: first, the measured circuit of the wire around a few times, were measured and then put into the jaw in clamp meter. The current clamp meter indicating the value of the actual value is not measured, the actual current should be divided by the wire clamp meter readings for winding the coil number.
Clamp meter measurement, near the wire current, also have influence on it, so must pay attention to the position of the wire to the equal phase
1, before use, should read the instruction manual carefully, make clear whether it is communication or AC and DC dual-use.2, the measured voltage clamp meter shall not exceed the values marked on the ground, otherwise easy to cause the accident, or cause the risk of electric shock.3, you can only measure the current one conductor, the measured wire clamp should be placed in the center of the window, the window with all phase conductors can not measure.4, clamp meter before measurement was estimated the size of the current, and then decide which range. If you can not estimate, you can use the maximum range file, and then appropriate to smaller, to accurate readings. Small current cannot be used to measure high current. To protect the instrument from damage.
