D470 Automotive Multimeter is a handheld auto-ranging automotive digital multimeter. In addition to the basic measurement functions of AC voltage, DC voltage, AC current, DC current, diode and continuity, this meter also has the function of measuring frequency (HZ), capacitance, temperature, engine speed, closed angle, duty cycle and automobile system pulse width. This instrument also has RS232 output and optional software for recording information to personal computers.
This manual introduces the Pretek D470 digital automotive multimeter, a handheld device that measures AC/DC voltage and current, resistance, continuity, diode, frequency, capacitance, temperature, engine RPM, duty cycle, and pulse width. It also provides RS‑232 output for PC data logging and features such as true‑RMS AC measurement, auto‑range, and automatic power‑off.
Safety guidelines cover proper handling, avoiding measurements above 1000 V, using correct test leads, and replacing fuses. Maintenance instructions include battery replacement, low‑battery indication, and detailed steps for fuse replacement, ensuring reliable long‑term operation. This manual is written in Chinese.
| Power Supply | 9 V battery |
|---|---|
| AC Voltage Measurement | True‑RMS supported |
| Frequency Measurement | Supported (Hz) |
| Pulse‑Width Measurement | Supported |
| RS‑232 Interface | Supported |
| Low‑Battery Indicator | Battery symbol on display |
When the battery voltage drops, a battery symbol appears on the display to warn the user.
Hold the REL button while turning the rotary switch on to activate the RS‑232 output.