Key facts
- Brand
- EXTECH
- Model
- EX520
- Category
- multimeter
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2026-10-14
Start here
Extech EX520 True RMS Industrial Multimeter User Guide
The Extech EX520 is a rugged, auto-ranging multimeter designed for heavy-duty applications. It measures AC/DC voltage, current, resistance, capacitance, frequency (electrical and electronic), diode test, continuity, and thermocouple temperature.
This manual provides detailed safety warnings, including input protection limits and precautions for high-voltage measurements. It also explains how to use the controller buttons, LCD display symbols, and various measurement functions such as DC/AC voltage, current, resistance, and frequency. This manual is written in Chinese.
Extech EX520 specifications
| Display | 6,000 count LCD |
|---|---|
| Input Protection (V) | 1000VDC/AC rms |
| Input Protection (mA) | 800mA |
| Input Protection (A) | 10A |
| Continuity Threshold | 35 Ohms |
Source: Extech EX520 True RMS Industrial Multimeter User's Guide
All Extech EX520 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum input voltage for the multimeter?
The maximum input value is 1000VDC/AC.
From: Extech EX520 True RMS Industrial Multimeter User Guide
What is the maximum input voltage for the Extech EX520?
The maximum input voltage is 1000VDC/AC rms.
From: Extech EX520 True RMS Industrial Multimeter User's Guide
How long can you measure 20A current?
Do not make 20A current measurements for longer than 30 seconds.
From: Extech EX520 True RMS Industrial Multimeter User's Guide