This manual covers safety guidelines, general specifications, and proper handling of the DMM4040 and DMM4050 multimeters. It includes sections on front‑panel operation, back‑panel connectors, and configuration of measurement modes.
Detailed instructions are provided for using the USB interface, RS‑232 communication, memory management, and performing various measurements such as voltage, current, resistance, capacitance, and temperature. Troubleshooting and maintenance procedures are also included. This manual is written in Chinese.
Press the power button as shown in the manual (see page 2‑7).
The back panel connectors are described in the section titled "後面板接頭" on page 3‑7.