CEN-TECH CM300 User Manual

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Owner’s Manual & Safety Instructions
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CEN-TECH CM300 Specifications

General

Type	Digital Multimeter
Diode Test	Yes
Continuity Test	Yes
DC Voltage	200mV/2V/20V/200V
AC Voltage	200V
DC Current	200µA/20mA/200mA/10A
Resistance	200Ω/2kΩ/20kΩ/200kΩ/2MΩ
Battery Test	1.5V/9V

Summary

Safety Information

Safety Warnings and Precautions

General safety warnings and precautions for using the multimeter.

Specifications

Setup and Controls

Device Functions Overview

Overview of the multimeter's functions and controls.

Display and Identification

Serial Number Recording

Location to record the multimeter's serial number.

Operation Guide

General Operating Features

Covers Data Hold, Relative Button, Backlight, and Auto Power Off functions.

Measurement Procedures

Buzzer Notifications

Notifications provided by the multimeter's buzzer.

AC Voltage Measurement

Procedure for measuring AC voltage.

Electrical Measurements

DC Voltage Measurement

Procedure for measuring DC voltage.

Resistance Measurement

Procedure for measuring resistance.

Specialized Measurements

Continuity Measurement

Procedure for testing circuit continuity.

Diode Measurement

Procedure for measuring diode voltage drop.

DC Current and Capacitance

Capacitance Measurement

Procedure for measuring capacitor energy storage.

DC Current Measurement

Procedure for measuring DC current.

Battery and Voltage Detection

Battery Measurement

Procedure for measuring battery voltage.

NCV (Non-Contact Voltage)

Procedure for non-contact voltage detection.

Maintenance

Cleaning, Maintenance, and Lubrication

Instructions for cleaning, maintenance, and lubrication of the multimeter.

Servicing and Support

Battery Replacement

Steps for replacing the multimeter's batteries.

Calibration Procedure

Procedure for calibrating the multimeter.

Warranty