Greenlee DM-820A User Manual

INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
Read and understand all of the instructions and safety information in this
manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre seguridad
que aparecen en este manual, antes de manejar estas herramientas o
darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et les
informations sur la sécurité de ce manuel avant d’utiliser ou de procéder à
l’entretien de cet outil.
Register this product at www.greenlee.com / Registre este producto en www.greenlee.com
Enregistrez votre produit en ligne, www.greenlee.com
DM-810A • DM-820A
DM-830A • DML-430A
Digital Multimeters
Multímetros digitales
Multimètres
numériques
52047799 REV 6 © 2021 Greenlee Tools, Inc. 09/21

Greenlee DM-820A Specifications

General

Quantity per pack	1 pc(s)

Summary

Safety Information

Important Safety Warnings

Safety Alert Symbols and Hazard Levels

Explains safety alert symbols and defines hazard levels (DANGER, WARNING, CAUTION).

Operational Safety Precautions

Stresses the importance of reading and understanding the manual before operating the equipment.

Electric Shock Hazard Warnings

Highlights specific warnings related to electric shock hazards.

Using Meter Features

Common Features Across All Models

Describes dual display, SELECT, RANGE, HOLD, backlight, auto power off, and beeper disabling.

Features for DM-820A, DM-830A, DML-430A

Explains CREST and REC B recording functions available on specific models.

Advanced Meter Features

EF Detection and AutoCheck™ Mode

Covers EF detection, AutoCheck™ mode, Range-Lock, and Energized Circuit Alert features.

Temperature and dBm Measurements

Details T1-T2 temperature, dBm-Ω (DM-830A), and DML-430A specific functions.

Understanding AC Measurements

Data Storage and Logging (DML-430A)

Operation and Settings

Voltage Measurement Setup

Details how to set the selector and connect leads for various AC/DC voltage measurements.

Operation and Settings (cont'd)

Settings for Other Measurements

Settings for Specialized Functions

Typical Measurement Procedures

Voltage and Current Measurement Examples

Typical Measurement Procedures (cont'd)

Resistance, Continuity, Capacitance, Diode Examples

Temperature and EF Detection Examples

Accuracy Specifications Overview

AC Voltage Accuracy Details

DC Voltage Accuracy Details

Accuracy Specifications for Other Measurements

Resistance, Capacitance, Diode Accuracy

Accuracy Specifications for Current and Frequency

Current Measurement Accuracy

Accuracy Specifications for Advanced Functions

Frequency, Duty Cycle, Temperature, Crest, Record Mode Accuracy

Accuracy Specifications for AutoCheck™ and dBm

AutoCheck™ Mode Accuracy

General Specifications

Display, Power, Conditions, Protection

Maintenance and Care

Battery and Fuse Replacement

Provides step-by-step instructions for replacing the battery and fuses, including safety warnings.