Draper 400 Series User Manual
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Draper 400 Series User Manual

Clamp meter
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400 SERIES
CLAMP METER
41864
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.

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Summary of Contents for Draper 400 Series

  • Page 1 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.

  • Page 2: Title Page

    Commercial copying, redistribution, hiring or lending is prohibited. No part of this publication may be stored in a retrieval system or transmitted in any other form or means without written permission from Draper Tools Limited. In all cases this copyright notice must remain intact.

  • Page 3: Table Of Contents

    2. CONTENTS 2.1 CONTENTS ................Page content Page TITLE PAGE INTRODUCTION ....................2 REVISION HISTORY ..................2 UNDERSTANDING THIS MANUAL ..............2 COPYRIGHT NOTICE ..................2 CONTENTS CONTENTS ......................3 GUARANTEE GUARANTEE...................... 4 INTRODUCTION GENERAL SPECIFICATIONS .................5-7 HEALTH & SAFETY INFORMATION SAFETY PRECAUTIONS ...................

  • Page 4: Guarantee

    3. GUARANTEE 3.1 GUARANTEE Draper tools have been carefully tested and inspected before shipment and are guaranteed to be free from defective materials and workmanship. Should the tool develop a fault, please return the complete tool to your nearest distributor or contact Draper Tools Limited, Chandler's Ford, Eastleigh, Hampshire, SO53 1YF.

  • Page 5: Introduction

    4. INTRODUCTION 4.1 GENERAL SPECIFICATIONS Voltage input and ground between the maximum voltage CAT Ⅲ & 600V~ Display: LCD display, the maximum reading of 1999 Measurement principle: double integral A / D conversion Range selection: Automatic Measurement rate: (2.5 times to 3 times) / sec Unit display: with the function, the unit of electricity symbol display Polarity display: Negative polarity input shows “...
  • Page 6 4. INTRODUCTION AC Voltage Range Accuracy Resolution 200mV 0.1mV ±(1.0% rdg + 10 digit) 10mV 200V 0.1V 600V ±(1.2% rdg + 10 digit) Input impedance: 10MΩ Measuring frequency range ： 40Hz~400Hz. Maxi allowable input voltage: 600V DC or 600 V AC rms. AC Current Range Accuracy...
  • Page 7 4. INTRODUCTION Diode Test Range Accuracy Resolution Displays the forward pressure drop approximation (Open circuit voltage of about 1.5V) Overload Protection: 250V DC or 250V AC rms. Continuity Test Range Accuracy Resolution The buzzer will sound when about 100mΩ ≤60Ω (open circuit voltage of about 0.45V) Note: The buzzer may sound or not sound at 60Ω...

  • Page 8: Health & Safety Information

    5. HEALTH & SAFETY INFORMATION Warning To avoid electrical shock or personal injury. Please read the safety information and “warnings and precautions” before use. This is an AC-DC current digital clamp meter (hereinafter referred to as the clamp meter). The whole circuit design is based on LSI A / D converter with full-scale overload protection circuit and frequency measurement function.
  • Page 9 6. IDENTIFICATION Measurement clamp head. Back light/inspection light button. Inspection light. Function buttons. Protection Guard: Protects the user's Display. hand from touching the danger zone. Probe sockets. Clamp trigger. Measuring function selection dial.

  • Page 10: Identification

    6. IDENTIFICATION 6.1 LCD (Liquid-crystal display) - FIG. 1 FIG.1 Battery low indicator. DC Signal Measurement Indicator. Automatic range indicator. Negative polarity indicator. Diode measurement indicator. AC signal indicator. Continuity checking indicator. Unit indicator. Maximum measurement indicator. Numerical display. Data hold indicator.

  • Page 11: Unpacking & Checking

    Carefully remove the product from the packaging and examine it for any sign of damage caused during shipping. Lay the contents out and check them. If any part is damaged or missing, do not attempt to use the tool and contact the Draper Helpline immediately (see back page for details).

  • Page 12: Operation Instructions

    8. OPERATING INSTRUCTIONS 8.1 BACKLIGHT AND INSPECTION LIGHT Press and hold the " " button to switch on and off the back light/inspection light. Note: The inspection light will only come on while in AC current function. 8.2 FUNCTION SWITCH BUTTON (SEL) The "SEL"...

  • Page 13: Ac Voltage Measurement

    8. OPERATING INSTRUCTIONS 8.7 AC VOLTAGE MEASUREMENT Warning Risk of electric shock. When measuring high voltage, extra care should be taken to avoid electrical shock. Do not attempt to use this meter on a voltage higher than the AC600V rms value. 1.

  • Page 14: Maintenance

    9. MAINTENANCE 9.1 REPLACEMENT BATTERY Warning To avoid false readings that may result in electric shock or personal injury, replace the battery as soon as the“ ” symbol appears on the meter display. To avoid electrical shock or personal injury, shut down and check to make sure that the test leads have been disconnected from the meter before opening the battery cover.

  • Page 15: Explanation Of Symbols

    10. EXPLANATION OF SYMBOLS 10.1 EXPLANATION OF SYMBOLS WEEE Do not dispose of Waste Electrical & Electronic Equipment in with domestic rubbish. For indoor use. Do not expose to rain. Class II construction (Double insulated). Conforms to all relevant Voltage AC. safety standards.

  • Page 16: Disposal

    11. DISPOSAL 11.1 DISPOSAL - At the end of the machine’s working life, or when it can no longer be repaired, ensure that it is disposed of according to national regulations. - Contact your local authority for details of collection schemes in your area. In all circumstances: •...
  • Page 17 NOTES...
  • Page 18 NOTES...
  • Page 19 NOTES...
  • Page 20 ©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.

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