Dawson Tools DDM190 Manual de usuario
Dawson DDM190
Digital Multimeter
User’s Manual
1
TABLE OF CONTENTS
LIMITED WARRANTY AND LIMITATION OF
LIABILITY ..................................................... 3
Out of the Box.............................................3
Accessories.. Error! Bookmark not defined.
Safety Information .....................................7
Certification ...............................................7
INTRODUCTION ........................................... 7
Overview.....................................................7
Figures and Components ............................8
Buttons and Components .......................8
Display Description...............................10
USING THE METER..................................... 10
Preparation
...............................................10
DC/AC Voltage Measurement..................11
Resistance Measurement.........................12
Diode Test ................................................13
Continuity.................................................14
Remote AC Voltage Detection..................15
2
Data Hold .................................................16
Maximum and Hold .................................17
Auto Off....................................................17
SPECIFICATIONS ........................................ 18
General Specification................................18
Technical Specification .............................19
MAINTENANCE AND REPAIR ..................... 22
Repair .......................................................22
Test Leads Replacement ...........................23
Replacing Batteries...................................23
CONTACT DAWSON................................... 23
FEATURES...................................... Back Page
3
LIMITED WARRANTY AND
LIMITATION OF LIABILITY
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 necessary during the
warranty period, contact your nearest Dawson authorized service
center at (800) 898-6991 or visit www.DawsonTools.com to
obtain a return authorization (within the US only). A return
authorization is necessary before returning any instrument to
Dawson; no service will be provided without a return
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 warranty in its
entirety is inclusive and no other warranties, written or oral, are
expressed or implied.
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.
4
Accessories
Test Leads
1pc
Alligator Clip& cable
1pc
1.5V AAA Battery
2pcs
Case
User’s Manual
1pc
1pc
Safety Information
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK,
PRODUCT DAMAGE OR PERSONAL INJURY, PLEASE
FOLLOW THE SAFETY INSTRUCTIONS DESCRIBED IN THE
USER MANUAL. READ THE USER MANUAL BEFORE
USING THE METER.
Avoid shaking, dropping or any kind of
impacts when using or transporting the Meter.
WARNING
TO ENSURE SAFE OPERATION AND LIFE OF THE METER,
DO NOT PLACE THE METER IN ANY ENVIRONMENT WITH
HIGH PRESSURE, HIGH TEMPERATURE, DUST, EXPLOSIVE
GAS OR VAPOR.
5
To avoid electric shock or personal injury,
repairs or servicing not covered in this manual
should be performed only by qualified
personnel.
Avoid direct exposure to sunlight to ensure
extended life of the Meter.
Do not place Meter in a strong magnetic field;
this may cause false readings.
Use only the batteries indicated in the
Technical Spec.
Avoid exposing batteries to humidity. Replace
batteries as soon as the low battery indicator
appears.
Please keep the original packing for future
shipping purposes (ex. Calibration)
After opening the box, check for any damage
during delivery.
Safety Symbols
Important safety information, please refers
to the user manual
Earth ground
Indicates compliance with requirements for
double insulation
Fuse must be replaced with ratings specified
in the manual.
6
Important Safety Information
Never use the Meter to measure voltages that
might exceed 600V DC/AC above earth
ground in category II installations.
Always be careful when working with voltage
above 60V DC or 30V AC RMS. Keep fingers
behind the probe barriers while measuring.
Never connect the Meter leads across a
voltage source while the rotary switch is in
the resistance, diode or continuity mode.
Doing so can damage the Meter.
Do not perform resistance, diode and
continuity measurements on powered circuits.
Inspect test leads and probes for cracks,
breaks or crazes on the insulation before
using the Meter.
Repair or maintenance should be
implemented by trained personnel.
7
Certification
CAT II: This meter has meet IEC1010-1
standard with an overvoltage category (CAT II)
and pollution2.
The Meter is compiled to EMC
requirements.
Introduction
Overview
The DAM190 is a portable pen-type digital multimeter
featuring non-contact AC voltage detection, auto/manual
range, maximum and hold reading, auto power off, and
LCD built in for easy reading. The slim and lightweight
design with retractable probe is mobile and ideal for
both professionals and hobbyists.
8
Figures and Components
Buttons and Components
1. Retractable Probe
2. Rotatable Probe knob
3. LED Indicator
4. Protective Ring
5. Rotary Switch
6. Sensitivity Adjust Knob
7. FUNC. Button
8. RANGE Button
9. MAX.H (Hold) Button
10. DATA-H (Hold) Button
11. Panel
12. LCD Display
13. COM Jack
Front Panel
9
Buttons and Components Description
RANGE Button
Choose auto or manual range
FUNC. Button
Switch between AC/DC or between
resistance, continuity or diode
DATA-H Button
Data reading hold
MAX.H Button
Measure and hold for maximum
reading
Rotary Switch
To select different functions
Probe
Input terminals for V/Ω/ / and
AC voltage detector
COM
Common terminal
LED Indicator
Non-Contact Voltage Detection
Indication
Probe knob
Rotate the knob to retract probe
Protective Ring
Keep hand behind the ring for
safety
Sensitivity
Adjustment Knob
Adjust the sensitivity while AC
Voltage measurement
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