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Dawson Tools DDM450 Manual

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SERVICE
Thank you for purchasing our product!
As our customers are our top priority and we strive for 100% satisfaction,
we would appreciate your feedback on the product.
Please contact our customer service department at (310) 728-6220 or at
www.dawsontools.com if you have any questions regarding this product.
Our professional support team is always ready to answer
your enquiries and provide assistance.

DIGITAL MULTIMETER

CAT.III
600V
00-05-3842
DDM450
4
DDM450

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Summary of Contents for Dawson Tools DDM450

  • Page 1: Digital Multimeter

    DIGITAL MULTIMETER DDM450 DDM450 SERVICE Thank you for purchasing our product! As our customers are our top priority and we strive for 100% satisfaction, we would appreciate your feedback on the product. Please contact our customer service department at (310) 728-6220 or at www.dawsontools.com if you have any questions regarding this product.

  • Page 2: Limitation Of Liability

    LIMITED WARRANTY AND INTRODUCTION LIMITATION OF LIABILITY DDM450 is a stable, safe, reliable compact digital handheld 6000 count This instrument from Dawson Tools Inc. will be free from defects in auto-ranging multimeter. This meter can measure AC/DC voltage, AC/DC workmanship and material for three years from the date of original current, resistance, continuity, diodes, non-contact voltage, and battery purchase.

  • Page 3: Safety Symbols

    NCV indicator will light up if voltage is detected. Release the “NCV” button to stop NCV detection. 6.Rotary Switch 7.Input Jack (all measurements; current below 600mA) 8.A Jack (current measurements between 600mA-10A only) 9.Common Jack (all measurements) DDM450...

  • Page 4: Display Description

    ROTARY SWITCH FUNCTIONS 1. DC Voltage:<600V Data Hold Alternating Current Diode Test Negative DC Value Continuity Test Direct Current DDM450 Resistance Low Battery DC/AC Current Auto Power Off 1.Turn rotary switch to DC voltage position. DC/AC Voltage Auto Range Active 2.Connect leads across voltage source/load.
  • Page 5 3. DC /AC Current (large):<10A 6.1 Continuity: DDM450 DDM450 1.Turn rotary switch to multifunction position 1.Turn rotary switch to A position. 2.Press FUNC to switch to continuity mode 2.Press FUNC to select DC or AC current. 3.Connect leads across circuit.

  • Page 6: Electrical Specifications

    Specifications • Operating Altitude: 2000m • Relative Humidity: 75% max • Operating Temperature: 0°C~40°C/32°F~104°F (<80% RH) DDM450 • Storage Temperature: -10°C~60°C/14°F~140°F (<70% RH) • Accuracy Temperature: -18°C~28°C/64°F~82°F (<80% RH) • Temperature Coefficient: 0.1x(specified accuracy)/°C (<18°C or >28°C) 1.Turn rotary switch to 1.5V battery test position.
  • Page 7 AC Voltage Measurement Current Measurement Range Accuracy Range Accuracy Resolution Resolution 0.001V 400 A µ 0.1µA 0.01V 4000µA 1µA ±(1.0% of reading +10 digits) ±(1.8% of reading +3 digits) 400V 0.1V 40mA 0.01mA 600V 400mA 0.1mA ±(2.0% of reading +8 digits) 10mA •...

  • Page 8: Maintenance

    Diode Test REPLACING THE BATTERY Description Resolution Display shows the forward-biased WARNING 0.001V voltage drop of the diode. To avoid false reading that could lead to injury or damage to the • Overload protection: 600V rms meter, replace the batteries as soon as the “ ”...

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