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Extech Instruments EX520 User Manual

Extech Instruments EX520
15 pages
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User's Guide
True RMS Industrial Multimeter
Extech EX520
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Extech Instruments EX520 Specifications

General IconGeneral
DC Voltage Range0.1mV to 1000V
Resistance Range0.1Ω to 40MΩ
Diode TestYes
ContinuityYes
Battery Type9V
Data HoldYes
Auto Power OffYes
AC Current Range0 to 10A
DC Current Range0 to 10A
Capacitance Range0 to 100μF
Frequency Range0 to 10MHz
Duty Cycle0.1 to 99.9%
Category RatingCAT III 600V

Summary

Safety

Safety Symbols and Definitions

Explains safety symbols like WARNING, CAUTION, and related indicators.

Overvoltage Installation Categories

Details installation categories I through IV for overvoltage protection.

General Cautions

Safety Instructions

Input Protection Limits

Lists maximum input values and protection limits for various measurement functions.

Controls and Jacks Overview

Display Symbols and Annunciators

Explains the meaning of various symbols and indicators displayed on the multimeter's screen.

Operating Instructions

Voltage Measurement Procedures

Step-by-step instructions for measuring DC and AC voltages with the multimeter.

Current Measurement Procedures

Resistance, Continuity, and Diode Tests

Advanced Measurement Functions

Meter Features and Operation Modes

Display and Power Management

Covers display backlight, hold, auto power off, and low battery indication.

Maintenance and Battery Handling

Fuse Replacement Guidance

Step-by-step guide for safely replacing the multimeter's fuses.

Fuse Replacement Procedure

Measurement Specifications Overview

Resistance and Capacitance Specs

Lists specifications for resistance, capacitance, frequency, and temperature measurements.

Detailed Technical Specifications

Meter Performance and Safety Standards

Information on enclosure, drop test, impedance, bandwidth, safety standards, and approvals.

Meter Characteristics and Approvals

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