Table of Contents
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Table of Contents
Related Manuals for Amprobe AM-420
Summary of Contents for Amprobe AM-420
- Page 1 AM-420 Digital Multimeter Users Manual • Manual de uso...
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Page 3: Digital Multimeter
AM-420 Digital Multimeter Users Manual 11/2014, 4266183 C ©2014 Amprobe Test Tools. All rights reserved. Printed in China... - Page 4 During the warranty period, any defective test tool can be returned to your Amprobe distributor for an exchange for the same or like product. Please check the “Where to Buy” section on www.Amprobe.com for a list of distributors near you.
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Page 5: Table Of Contents
CONTENTS SYMBOLS ........................2 SAFETY INFORMATION ....................3 UNPACKING AND INSPECTION ..................4 FEATURES ........................4 MAKING MEASUREMENTS ..................4 Rotary Switch Positions ..................4 HOLD Button ......................5 Measuring AC Voltage ...................6 Measuring DC Voltage ...................6 Measuring DC Current ...................7 Measuring Resistance ....................7 Measuring Continuity ....................7 Measuring Diode ....................7 Battery Test ......................7 DETAILED SPECIFICATIONS ..................8... - Page 6 AM-420 LCD display Display hold Display HOLD button Negative reading Rotary switch Low battery indicator Test probe Measurement reading Hazardous voltage...
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Page 7: Symbols
SYMBOLS Caution! Risk of electric shock. � Caution! Refer to the explanation in this manual. Alternating Current (AC). Direct Current (DC). The equipment is protected by double insulation or reinforced insulation. Earth (Ground). Battery. � Complies with European Directives. � Conforms to relevant Australian Standards Canadian Standards Association (NRTL/C) Do not dispose of this product as unsorted municipal waste. -
Page 8: Unpacking And Inspection
NOT be used. A false measurement may occur. The battery should be replaced immediately. UNPACKING AND INSPECTION Your shipping carton should include: AM-420 Multimeter 9V alkaline battery (installed) Users manual If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange. -
Page 9: Rotary Switch Positions
Rotary Switch Positions Switch Position Measurement Unit Measurement Function V AC AC voltage measurement up to 250 V. V AC AC voltage measurement up to 200 V. V AC DC voltage measurement up to 250 V. V DC DC voltage measurement up to 200 V. V DC DC voltage measurement up to 200 V. -
Page 10: Measuring Ac Voltage
Measuring AC Voltage X� Do not apply on a voltage source higher than AC 250V and use proper range for measurement. Over-range indication: “1”, “-1” or a reading exceeds 250. Measuring DC Voltage X� Do not apply on a voltage source higher than DC 250V and use proper range for measurement. -
Page 11: Measuring Dc Current
Measuring DC Current X� To avoid personal injury or damage to the Meter: 1. Do not attempt to make an in-circuit current measurement when the open-circuit potential to earth ground exceeding 250V. 2. Switch to proper function and range for your measurement. 3. -
Page 12: Measuring Continuity
Measuring Continuity X� Disconnect circuit power and discharge all high-voltage capacitors before testing continuity. Meter beeps at ≤10Ω, beeper turns off at > 70 Ω Measuring Diode X� Disconnect circuit power and discharge all high-voltage capacitors before testing diode. Battery Test X�... -
Page 13: Detailed Specifications
DETAILED SPECIFICATIONS Ambient temperature: 23°C ± 5°C (73.4°F ± 9°F); Relative temperature: ≤ 75% Accuracy: ± (% of reading + digits) Maximum voltage between input terminal and earth ground: AC 250 Vrms or DC 250 V � Fuse: F1 315 mA, H 250 V fast-fuse, ( 5 × 20) mm Maximum display: 1999, updates 2 to 3/sec Over-range indication: “... -
Page 14: Maintenance
Overload protection: 250 V max. � F1: 315 mA H 250 V fast-fuse, ( 5×20)mm Resistance Measurement Range Resolution Accuracy 200Ω 0.1 Ω 2 kΩ 0.001 kΩ ±(1.5% + 5 LSD) 20 kΩ 0.01 kΩ 200 kΩ 0.1 kΩ 2 MΩ 0.001 MΩ... -
Page 15: Battery And Fuse Replacement
BATTERY AND FUSE REPLACEMENT X� Warning To avoid shock, injury, or damage to the Meter, disconnect the test lead from the measuring circuit before opening case. Use ONLY fuse with the amperage, interrupt, voltage, and speed ratings specified. Replacing BATTERY and FUSE follow below steps: 1. - Page 16 Visit www.Amprobe.com for • Catalog • Application notes • Product specifications • User manuals Amprobe ® www.Amprobe.com info@amprobe.com Everett, WA 98203 Tel: 877-AMPROBE (267-7623) Amprobe Europe ® Beha-Amprobe In den Engematten 14 79286 Glottertal, Germany Please Tel.: +49 (0) 7684 8009 - 0...