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Dawson Tools DDM190 User Manual

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Dawson DDM190
Digital Multimeter
User's Manual

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Summary of Contents for Dawson Tools DDM190

  • Page 1 Dawson DDM190 Digital Multimeter User’s Manual...

  • Page 2: Table Of Contents

    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 .......
  • Page 3 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 ........

  • Page 4: Limited Warranty And Limitation Of Liability

    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.

  • Page 5: Accessories

    Accessories  Test Leads  Alligator Clip& cable  1.5V AAA Battery 2pcs  Case  User’s Manual 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.

  • Page 6: Safety Symbols

     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.
  • Page 7 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.

  • Page 8: Certification

    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.

  • Page 9: Figures And Components

    Figures and Components Buttons and Components Retractable Probe Rotatable Probe knob LED Indicator Protective Ring Rotary Switch Sensitivity Adjust Knob FUNC. Button RANGE Button MAX.H (Hold) Button 10. DATA-H (Hold) Button 11. Panel 12. LCD Display 13. COM Jack Front Panel...
  • Page 10 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/ AC voltage detector...

  • Page 11: Display Description

    Display Description Alternating Current Direct Current AC or DC Diode Buzzer Maximum reading Hold Data hold AUTO Auto range Low battery indicator Using the Meter Preparation  Select a function and a range for the item to be measured using the rotary switch and “RANGE” button.

  • Page 12: Dc/Ac Voltage Measurement

     To perform measurement, first connect the test lead to common (COM), then connect the probe tip of the Meter to the circuit to be tested.  If the battery voltage is less than 2.4V, “ ”is displayed. Please replace batteries. DC/AC Voltage Measurement WARNING USE CAUTION WHEN MEASUREING HIGH VOLTAGE...

  • Page 13: Resistance Measurement

     Connect the probe tip of the Meter and tip of the test lead (or test clip) across the power source or load.  Read the measurement on the LCD display. The polarity of the Meter’s probe will be indicated. NOTE: In small voltage ranges, the Meter may show unsteady reading when test leads are not connected to the circuit;...

  • Page 14: Diode Test

    be chosen by pressing the “RANGE” button multiple times. Hold “RANGE” to return to Auto.  Connect the tip of the Meter probe and test lead (or test clip) across the resistance or circuit under measurement and read of the reading from LCD. NOTE: The Meter may take a few seconds to reach steady reading if the measuring resistance is...

  • Page 15: Continuity

    NOTE: The Meter shows the forward voltage drop. If the lead connection is reversed, “OL” is displayed. Continuity WARNING TO AVOID ELECTRICAL SHOCK AND INJURY POWER OFF THE CIRCUIT AND DISCHARGE THE CAPACITANCE BEFORE MEASURING CONTINUITY.  Rotate the probe knob clockwise to extend the probe from the Meter.

  • Page 16: Remote Ac Voltage Detection

    PROPERLY. WARNING KEEP HANDS AND FINGERS ON THE BODY OF THE METER AND AWAY FROM THE PROBE TIP. The DDM190 Meter offers non-contact AC Voltage Detection; a convenient way of testing AC Voltage existence. NOTE: Make sure the retractable probe is stored back in the Meter.

  • Page 17: Data Hold

     Set the rotary switch to the “TEST” position; the red LED indicator will light up.  Rotate the sensitivity knob in the center of the rotary switch counter clockwise to increase sensitivity, clockwise to decrease sensitivity.  Point the probe socket close to the cable or the power outlet;...

  • Page 18: Maximum And Hold

    Maximum Hold  To show the maximum value of the current measurement and hold its value, press “MAXH” button once. “M.H” will appear on the LCD and reading will be held. Press again to cancel. Auto Off  When not in use, the Meter will automatically turn off after 15 minutes.

  • Page 19: Specifications

    Specifications General Specification  Auto and Manual Ranges.  Max. Voltage between Terminals and Earth Ground: 600V DC or AC  Maximum Operating Altitude: 7000 Ft (2000m).  Display: 0.79 In. (20mm) LCD  Maximum Number: 1999  Polarity Indication: ‘-’ Indicates negative polarity. ...

  • Page 20: Technical Specification

    Technical Specification DC Voltage Range Resolution Accuracy 200mV 0.1mV 0.001V 0.01V ± (0.7% + 2 counts) 200V 0.1V 600V  Input Impedance: 10MΩ  Overload Protection: 200mV range: 250V DC or AC rms 2V to 600V ranges: DC 600V or AC 600V rms ...
  • Page 21 200V 0.1V ±(0.8% + 3 counts) 600V ±(1.0% + 3 counts)  Input Impedance: 10MΩ  Overload Protection: 200mV range: 250V DC or AC rms 2V-600V ranges: DC 600V or AC 600V rms.  Frequency Range: 40 to 400Hz  Response: Average (sine wave rms) ...
  • Page 22 Diode Resolution Function 0.001V reads diode forward voltage Forward DC Current: 1mA Reversed DC Voltage: 1.5V Overload Protection: 250V DC or AC rms Continuity Function If resistance is lower than 50built-in buzzer will make sound. Open circuit voltage: 0.5V Overload Protection: 250V DC or rms AC AC Voltage Detect Test Sensitivity...

  • Page 23: Maintenance And Repair

    Maintenance and Repair Repair Please follow these steps closely if the Meter is not functioning properly:  Check batteries; replace with new batteries if low battery indicator “ ” appears.  Follow User’s Manual to confirm all procedures.  Before sending Meter back for repair, include a description of the problems encountered.

  • Page 24: Test Leads Replacement

    Remove batteries and replace with new batteries.  Re-attach the battery compartment door to the case bottom and tighten screw. Contact Dawson Dawson Tools, Inc. 1142 S. Diamond Bar Blvd., #858 Diamond Bar, CA 91765 Phone: (310) 728-6220 www.DawsonTools,com Do not recycle...

  • Page 25: Features

    (Back Page) Features  LCD Display  Auto And Manual Range  Auto Power Off  Non-Contact Voltage Detector  Diode Test  Audible Continuity  Max Display  Retractable Tip  Data Hold  Low Battery Indicator...

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