The RS232-USB interface and internal circuit of this instrument are non-isolated interfaces. It is strictly prohibited to connect the computer when testing the voltage, otherwise the instrument will be burned or electric shock accident will be caused. The voltage test line must be pulled out of the meter before connecting the RS232-USB data line to the computer to read the data. The on-line monitoring in the instruction manual is not suitable for monitoring voltage.

Six sequential electric protection tester matters needing attention

Set the transceiver in the "load" position, or connect the sending output of the device to the receiving input to form a self-receiving. Only the main protection pressure plate is cast, and the overlapping handle is cut in the "comprehensive weight method". In the setting protection setting value control word, "longitudinal connection distance protection" is set to 1, "allowable channel" is set to 0, "reclosing" is set to 1, and "reclosing non-inspection" is set to 1.

The use method of intelligent micro water meter

Connect the threaded end of the measuring pipe with the switch connector, tighten it with a wrench, and close the needle valve at the other end of the measuring pipe; then insert one end of the quick connector on the test pipe into the sampling port on the micro-water meter; connect the exhaust pipe to the air outlet.

Precautions for three-phase capacitance inductance tester

Do not touch the metal part of the test line during the measurement to avoid electrical damage.

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