Draper 41821 User Manual

CONTACT US
+44 (0) 23 8049 4344
+44 (0) 23 8049 4333
Draper Tools Limited, Hursley Road,
Chandler's Ford, Eastleigh, Hampshire. SO53 1YF. U.K.
Helpline:
Sales Desk:
Internet: www.drapertools.com
E-mail: sales@drapertools.com
General Enquiries: (023) 8026 6355
Service/Warranty Repair Agent:
For aftersales servicing or warranty repairs, please contact the
Draper Tools Helpline for details of an agent in your local area.
YOUR DRAPER STOCKIST
©Published by Draper Tools Limited.
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means,
electronic, mechanical photocopying, recording or otherwise without prior permission in writing from Draper Tools Ltd.
IMPORTANT: Please read these instructions carefully to ensure the safe and effective use of this product and save
these instructions for future reference. This manual has been compiled by Draper Tools and is an integrated part of the
product with which it is enclosed and should be kept with it for future references.
This manual describes the purpose for which the product has been designed and contains all the necessary information
to ensure its correct and safe use. We recommend that this manual is read before any operation or, before performing
any kind of adjustment to the product and prior to any maintenance tasks. By following all the general safety
instructions contained in this manual, it will ensure both product and operator safety, together with longer life of the
product itself.
AlI photographs and drawings in this manual are supplied by Draper Tools to help illustrate the operation of the product.
Whilst every effort has been made to ensure accuracy of information contained in this manual, the Draper Tools policy
of continuous improvement determines the right to make modifications without prior warning.
300 SERIES
MULTIMETER
41821
DBMC0217

Draper 41821 Specifications

General

Diode Test	Yes
Continuity Test	Yes
Battery Test	1.5V, 9V
Display Type	LCD
Display Digits	3.5
Capacitance Range	No
Frequency Range	No
Temperature Range	No
Battery Type	9V
Safety Rating	CAT III 600V
DC Voltage	600V
AC Voltage	600V
DC Current	10A
AC Current	10A

Summary

1. TITLE PAGE

1.1 INTRODUCTION

User manual for Series 300 Multimeter, Stock no. 41821, Part no. DMM300.

1.2 REVISIONS

Lists publication dates for manual revisions, indicating the latest version is important.

1.3 UNDERSTANDING THIS MANUALS SAFETY CONTENT

Explains the meaning of WARNING and CAUTION symbols used in the manual.

1.4 COPYRIGHT NOTICE

States copyright and usage permissions for the manual content.

3. GUARANTEE

3.1 GUARANTEE

Details Draper Tools' warranty policy, coverage period, and exclusions for the multimeter.

4. INTRODUCTION

4.1 GENERAL SPECIFICATIONS

Provides detailed technical specifications including voltage, current, resistance, and operating parameters.

4.3 HANDLING & STORAGE

Provides guidance on proper handling and storage to maintain the accuracy and longevity of the multimeter.

5. HEALTH & SAFETY INFORMATION

5.1 SAFETY PRECAUTIONS

Lists critical safety precautions and warnings for operating the multimeter to prevent injury or damage.

6. IDENTIFICATION

7. UNPACKING & CHECKING

7.1 PACKAGING

Instructions for handling and retaining packaging material for warranty purposes.

7.2 WHAT'S IN THE BOX?

Lists the items included in the product package.

8. OPERATING INSTRUCTIONS

8.1 DATA HOLD

Explains how to use the Data Hold function to freeze the displayed measurement.

8.2 MAXIMUM VALUE HOLD

Explains how to use the Max Value Hold function to display the maximum recorded measurement.

8.3 FUNCTION TRANSFORM

Describes how the FUNC button switches between DC/AC ranges or measurement types.

8.4 BACK LIGHT

Details how to turn the backlight on and off, and its effect on battery life.

8.5 AUTO WARNING

Explains the auto warning feature that sounds a buzzer for currents over 10A.

8.6 AUTO POWER OFF

Describes the auto power off feature and how to disable it.

8.7 DC VOLTAGE

Step-by-step guide for measuring DC Voltage, including probe connection and function selection.

8.8 AC VOLTAGE

Step-by-step guide for measuring AC Voltage, including probe connection and function selection.

8.9 DC CURRENT

Step-by-step guide for measuring DC Current, including probe connection and function selection.

8.10 AC CURRENT

Step-by-step guide for measuring AC Current, including probe connection and function selection.

8.11 RESISTANCE (Ω)

Instructions for measuring resistance, including probe connection and function selection.

8.12 MEASURING ENGINE DWELL

Guide for measuring engine dwell angle using the multimeter.

8.13 MEASURING REV

Guide for measuring engine RPM using the multimeter's tachometer function.

8.14 TESTING DIODE

Instructions for testing diodes using the multimeter.

8.15 CONTINUITY TEST

Steps for performing a continuity test, including safety warnings.

9. MAINTENANCE

9.1 BATTERY REPLACEMENT

Provides a warning and essential safety step before replacing the multimeter's batteries.

10. EXPLANATION OF SYMBOLS

10.1 KEYS EXPLANATIONS

Explains the function of the multimeter's main buttons: FUNC, HOLD, MAX, and the backlight button.

10.2 EXPLANATION OF SYMBOLS

Explains various symbols and icons used on the multimeter and in the manual for clarity.

11. DISPOSAL

11.1 DISPOSAL

Provides instructions for the proper and environmentally responsible disposal of the multimeter.

CONTACT US

CONTACT US

Lists contact information for Draper Tools, including helpline, sales, and general inquiries.