Dawson Tools DDM450 User Manual

DIGITAL MULTIMETER

CAT.III

600V

SERVICE

00-05-3842

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.

Our professional support team is always ready to answer

your enquiries and provide assistance.

Please contact our customer service department at [phone] or at
www.dawsontools.com if you have any questions regarding this product.

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DDM450

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INTRODUCTION

DDM450 is a stable, safe, reliable compact digital handheld 6000 count
auto-ranging multimeter.

This meter is ideal for many situations, whether you're a professional

or causal user.

This meter can measure AC/DC voltage, AC/DC
current, resistance, continuity, diodes, non-contact voltage, and battery
test.

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WARNINGS

Check the meter before use to make sure there was no damage during

transit.

Check that the insulation on the test leads is not damaged and/or wires

are not exposed.

If any faults or abnormalities are observed, the meter should not be used

and should be checked out prior to use.

Never exceed the protection limit values indicated in specifications for

each range of measurement.

Always be careful when working voltages above 60V DC or 30V AC rms,

keep fingers behind the probe barrier while measuring.

Make sure the rotary switch is in the correct position before measurement.
Never use the meter in an environment with explosive gas, vapor or dust.
Always keep fingers behind probe barriers when making measurements.
When connecting test leads to a circuit, connect the black test lead first,

then the red lead. Disconnect in the opposite order.

Turn off power and discharge all capacitors first before measuring

resistance, continuity or diodes.

Failure to follow safety guidelines could compromise the safety features

of this meter.

Do not use the meter without the battery cover in place
Replace the batteries as soon as

“ ” to avoid false reading that could lead to electric shock and injury.

Remove test leads from all circuits before opening the battery cover.

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the low battery symbol appears.

To avoid electric shock and injury or damage to the meter, observe the
following safety methods:

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 necessar y during the warranty period,
contact your nearest Dawson authorized ser vice center at
[phone] or visit www.DawsonTools.com to obtain a return
authorization (within the US only). A return authorization is necessary
before returning anyinstr ument to Dawson; no ser vice will be
provided without a retur n 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 war ranty in
Its entirety is inclusive and no other warranties, written or oral, are
expressed or implied.

LIMITED WARRANTY AND
LIMITATION OF LIABILITY

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 x1 pair

• User's manual x1

• 9V battery x1

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3.

SAFET Y SYMBOLS

1.LCD Display

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2.Hold

Press “HOLD” to hold the current reading on the display. Press the button
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3.Function Button
Press “FUNC” to switch between functions or between AC/DC current.

Backlight Button

Press “ ” to turn on the

backlight. Press the button again to turn off the backlight.

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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)

again to return to normal measurement

NCV Button

Hold the “NCV” button down in any mode and the meter will activate the
non-contact voltage detection. Move the top of the meter towards an AC
voltage source and the buzzer will sound and the NCV indicator will light
up if voltage is detected. Release the “NCV” button to stop NCV detection.

Important safety information

AC(alternating current)

DC(direct current)

DC/AC Voltage or Current

Double insulation protection

Fuse

Compliance with EU regulations

Ground

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FEATURE DETAILS

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