This is the instruction manual of SANWA ELECTRIC INSTRUMENT CD721 type digital multimeter, which mainly introduces the safety use method, function, and use method of the product.
The manual introduces the Sanwa CD721 digital multimeter, covering safety warnings, device overview, and key features such as IEC1010 compliance, a 3200‑count display, auto power‑off, and data‑hold functions.
It details operation procedures for voltage, resistance, continuity, diode, and battery‑load measurements, explains function and shift switches, and provides full specifications and optional accessories. This manual is written in Japanese.
| Display resolution | approx. 3200 counts |
|---|---|
| Bar‑graph segments | 32 segments max |
| Power supply | 2 × R6 (IEC) dry batteries |
| Power consumption | approx. 1.8 mW |
| Battery life (auto power‑off) | 10 min |
| Dimensions | 165.5 × 78 × 41.5 mm (approx.) |
| Weight | approx. 290 g |
| Maximum DC voltage | 1000 V |
| Maximum AC voltage | 750 V |
Read all safety warnings, avoid voltages above the rated limits, never touch test leads while measuring, and keep the device and leads in good condition.
Connect the red lead to the voltage input terminal and the black lead to COM, select the DCV or ACV function, attach the leads to the circuit, and read the display.
The meter uses two IEC‑R6 dry batteries; with auto power‑off the battery life is about 10 minutes of continuous use.