Dawson Tools DDM230C Bedienungsanleitung

Dawson DDM230C

True RMS Multimeter with Bar Graph Display

User’s Manual

Table of Contents

LIMITED WARRANTY AND LIMITATION

OF LIABILITY...................................................3

Out of the Box.............................................3

Accessories .................................................4

Safety Information......................................4

Certification ................................................8

INTRODUCTION ........................................... 8

Overview.....................................................8

Components and Buttons ...........................9

Components............................................9

Buttons and Symbols ............................10

LCD Display ...........................................11

USING THE METER..................................... 12

Display Hold..............................................12

Switch between Modes ............................12

Relative Measurement .............................13

Max/Min Measurement ...........................13

Switch between Functions ........................14

Backlight...................................................14

Auto Off ....................................................14

NCV (Non-Contact Voltage Detector).......14

DC and AC Voltage Measurement ............15

Resistance



.............................................16

Continuity .................................................16

Diode ........................................................16

Capacitance..............................................17

Frequency and Duty Ratio ........................17

Current......................................................17

SPECIFICATIONS ........................................ 18

General Specifications ..............................18

Technical Specifications............................19

MAINTENANCE AND REPAIR ..................... 26

Battery Replacement................................26

Test Leads Replacement ...........................27

CONTACT DAWSON................................... 27

FEATURES...................................... Back Page

LIMITED WARRANTY AND

LIMITATION OF LIABILITY

This instrument from Dawson Tools Inc. will be free from defects

in workmanship and material for three years from the date of

original purchase. This warranty does not cover defects resulting

from damage caused by the user such as drops, neglect, misuse,

unauthorized alteration, usage outside of specified conditions,

contamination, or improper repair/maintenance. To receive

service on the instrument if it becomes necessary during the

warranty period, contact your nearest Dawson authorized service

center at (800) 898-6991 or visit www.DawsonTools.com to

obtain a return authorization (within the US only). A return

authorization is necessary before returning any instrument to

Dawson; no service will be provided without a return

authorization. The user is responsible for properly packing the

unit and charges such as shipping, freight and insurance charges.

The extent of Dawson's liability is limited solely to the

repair/replacement of the instrument. The above warranty in its

entirety is inclusive and no other warranties, written or oral, are

expressed or implied.

Out of the Box

Check the Meter and accessories thoroughly before using

the Meter. Contact your local distributor if the Meter or

any components are damaged or malfunction.

Accessories

Test Leads

1 pair

9V 6F22 Battery

User’s Manual

1pc

Safety Information

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK,

PRODUCT DAMAGE OR PERSONAL INJURY, PLEASE

FOLLOW THE SAFETY INSTRUCTIONS DESCRIBED IN THE

USER MANUAL. READ THE USER MANUALS BEFORE

USING THE METER.

WARNING

TO ENSURE SAFE OPERATION AND LIFE OF THE METER,

DO NOT PLACE THE METER IN ANY ENVIRONMENT WITH

HIGH PRESSURE, HIGH TEMPERATURE, DUST, EXPLOSIVE

GAS OR VAPOR.

Avoid shaking, dropping or any kind of

impacts when using or transporting the Meter.

To avoid electric shock or personal injury,

repairs or servicing not covered in this manual

should be performed only by qualified

personnel.

Avoid direct exposure to sunlight to ensure

extended life of the Meter.

Do not place Meter in a strong magnetic field;

this may cause false readings.

Use only the batteries indicated in the

Technical Spec.

Avoid exposing batteries to humidity. Replace

batteries as soon as the low battery indicator

appears.

Please keep the original packing for future

shipping purposes (ex. Calibration)

After opening the box, check for any damage

during delivery.

Check the terminals every time before

operating the Meter. Do not operate the

Meter if the terminals are damaged or one or

more functions are not working properly.

Check the test leads before operation. Leads

must be in good condition; check if leads are

well covered by insulator, and if wires are not

exposed.

Use the original test leads included in the

package for best performance and safety. If

necessary, use the compatible leads with

same specifications of the originals’.

Safety Symbols on the Meter

Important safety information, please refers

to the user manual

Earth ground

Indicates compliance with requirements for

double insulation

Important Safety Information

Never use the Meter to measure voltages that

might exceed 600V DC/AC above earth

ground.

In Manual Mode, if the circuit value is

unknown, start the Meter at the maximum

range and then adjust accordingly.

Always be careful when working with voltages

above 60V DC or 30V AC RMS. Keep fingers

behind the probe barriers while measuring.

Never connect the Meter leads across a

voltage source while the rotary switch is in

the resistance, diode or continuity mode.

Doing so can damage the Meter.

Inspect test leads and probes for cracks,

breaks or crazes on the insulation before

using the Meter.

Remove the leads from the circuit first before

switching between functions.

Do not power on the circuit when measuring

resistance, capacitance or diodes.

Do not measure the capacitance before the

capacitors are discharged.

Do not operate the Meter near explosive gas,

vapor or under dust.

Stop the operation if the Meter or test leads

appeared damaged or do not function

properly.

Unless the battery cover and the Meter case

are firmly closed, do not use the Meter.

Repair or maintenance should be

implemented by trained personnel.

Certification

CAT IV: This meter has meet IEC1010-1

standard with an overvoltage category (600V

CAT IV) and pollution degree 2.

The Meter is compiled to EMC

requirements.

Introduction

Overview

Dawson DDM230C is a portable, hand-held yet

professional meter that features True RMS measurement

display, AC/DC current, AC/DC voltage, Frequency,

Capacitance, Resistance, Continuity, Duty Ratio, and

Diode Testing. This Meter is easy to use even with one

hand, suitable for professional users or amateurs, and

ideal for school or home use.

Components and Buttons

Components

1. NCV LED Indicator

2. LCD Display

3. Buttons

4. Function Rotary Switch

5. Input

6. Voltage Sensing Area.

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