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Dawson Tools DDM230C User Manual

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Dawson DDM230C
True RMS Multimeter with Bar Graph Display
User's Manual

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Summary of Contents for Dawson Tools DDM230C

  • Page 1 Dawson DDM230C True RMS Multimeter with Bar Graph Display User’s Manual...

  • Page 2: Table Of Contents

    Table of Contents LIMITED WARRANTY AND LIMITATION OF LIABILITY ........... 3 Out of the Box ..........3 Accessories ..........4 Safety Information ........4 Certification ..........8 INTRODUCTION ........... 8 Overview ............. 8 Components and Buttons ......9 Components ..........9 Buttons and Symbols ......
  • Page 3 Switch between Functions ......14 Backlight ........... 14 Auto Off ............ 14 NCV (Non-Contact Voltage Detector) ..14 DC and AC Voltage Measurement .... 15  Resistance ..........16 Continuity ..........16 Diode ............16 Capacitance ..........17 Frequency and Duty Ratio ......17 Current ............

  • 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 1 pair  9V 6F22 Battery  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. READ THE USER MANUALS BEFORE USING THE METER.
  • Page 6  Avoid shaking, dropping or any kind of impacts when using or transporting the Meter.  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.
  • Page 7  Check the test leads before operation. Leads must be in good condition; check if leads are well covered by insulator, and if wires are not exposed.  Use the original test leads included in the package for best performance and safety. If necessary, use the compatible leads with same specifications of the originals’.
  • Page 8  Always be careful when working with voltages 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.

  • Page 9: Certification

    The Meter is compiled to EMC requirements. Introduction Overview Dawson DDM230C is a portable, hand-held yet professional meter that features True RMS measurement display, AC/DC current, AC/DC voltage, Frequency, Capacitance, Resistance, Continuity, Duty Ratio, and Diode Testing. This Meter is easy to use even with one hand, suitable for professional users or amateurs, and ideal for school or home use.

  • Page 10: Components And Buttons

    Components and Buttons Components 1. NCV LED Indicator 2. LCD Display 3. Buttons 4. Function Rotary Switch 5. Input 6. Voltage Sensing Area.

  • Page 11: Buttons And Symbols

    Buttons and Symbols HOLD button: to hold the reading. FUNC button: to switch between functions. RANGE button: to set the range for manual or auto measurement. REL button: for relative measurement. Hz/% button: to switch between Frequency and Duty Ratio. MAX/MIN button: to switch between Maximum and Minimum measurement.

  • Page 12: Lcd Display

    LCD Display Alternating Current Direct Current Diode, Continuity AUTO Auto Mode Maximum Measurement Displayed Minimum Measurement Displayed Relative Measurement Mode Auto Power Off Battery Low Display Hold...

  • Page 13: Using The Meter

    Percentage（Duty Ratio） mV, V MilliVolt, Volt（Voltage） Amp（Current） nF,μF, mF Nanofarads, Microfarads, Millifarads Ω, kΩ, MΩ Ohms, Kilohms, Megaohms Hz, kHz, Hertz, Kilohertz, Megahertz Non-Contact Voltage USB Mode Using the Meter Display Hold During measurement, press “HOLD” button to hold the current reading on the display.

  • Page 14: Relative Measurement

    measuring range and will return to minimum range after maximum has been reached.  Hold “RANGE” for 1 second to switch back to Auto mode.  If the Meter in in Max/Min mode. Press “RANGE” to return to Normal mode. Note: Manual mode is not allowed in frequency measurement.

  • Page 15: Switch Between Functions

    Switch between Functions  During Voltage or Current measuring, press “FUNC” button to switch between AC and DC measurements.  When measuring Resistance, Diode or Continuity, press “FUNC” will switch between these modes. Backlight Press “ ” to turn on/off the display backlight. Auto Off If the Meter is not in use for 30 minutes, the Meter turns off automatically to conserve power.

  • Page 16: Dc And Ac Voltage Measurement

    WARNING EVEN THOUGH THERE IS NO INDICATION, VOLTAGE MAY STILL EXIST. THE MEASUREMENT MAY BE AFFECTED BY THE DESIGN OF THE OUTLET, TYPE OF INSULATION AND OTHER EXTERNAL FACTORS. NOTE:  The voltage sensing indicator may turn on when a voltage is fed to the Meter.

  • Page 17: Resistance

    NOTE : 660mV range is only accessible in Manual Mode. Resistance  Turn the rotary switch to . Connect the black lead to input COM and the red lead to . Use both leads to test the target resistance and read the measurement from the display.

  • Page 18: Capacitance

    Capacitance Turn the rotary switch to .Connect the black lead to COM and the red lead to . Use both leads to test the target capacitor and read off the capacitance from the meter. Frequency and Duty Ratio Turn the rotary switch to “Hz%”. Connect the black lead to COM and the red lead to Hz.

  • Page 19: Specifications

    Specifications General Specifications  Full time surge protection.  Maximum Voltage range between target and ground: 600V DC or AC.  Maximum working height: 2000m.  Maximum display number: 6599.  Auto Polarity Indication, ‘-’indicates negative.  Overload Indication: ‘0L’or ‘-0L’. ...

  • Page 20: Technical Specifications

    Technical Specifications Environmental Temperature: 749°F, relative humidity: <75% Features of True RMS  For non-sinusoidal signal measurement, the Meter provides more accurate measurement than the traditional averaging method.  If in AC current mode, the Meter may display a random reading between 1 and 50 when the input is not active.
  • Page 21  Maximum Input Voltage : 600V DC AC Voltage Range Resolution Accuracy  ( 1.5% + 5 Counts ) 660mV 0.1mV 6.6V 0.001V  ( 1.2% + 5 Counts ) 0.01V  ( 1.5% + 5 Counts ) 600V 0.1V ...
  • Page 22 Resistance Range Resolution Accuracy 660 0.1 6.6k 0.001k  ( 0.8% + 5 Counts) 66k 0.01k 660k 0.1k 6.6M 0.001Mk  ( 1.5% + 5 Counts ) 66M 0.1M  Open Circuit Voltage : ~0.4V  Overload Protection : 250V DC/AC (RMS) Diode Resolution Function...
  • Page 23 Capacitance Range Resolution Accuracy  ( 4% + 5 Counts ) 6.6nF 0.001nF 66nF 0.01nF 660nF 0.1nF  ( 5% + 3 Counts ) 6.6F 0.01F 66F 0.01F 660F 0.1F  ( 4% + 5 Counts ) 6.6mF 0.001mF 66mF 0.01mF ...
  • Page 24 Frequency Through V or Current Mode Range Resolution Accuracy 66Hz 0.01Hz 660Hz 0.1Hz  ( 1.5% + 5 Counts ) 6.6kHz 0.001kHz 10kHz 0.01kHz  Range : 10Hz ~ 10kHz  Input Voltage : ≥ 0.2V AC (Input voltage should increase along with the frequency) Through Hz Mode Range...
  • Page 25 Duty Ratio Range Resolution Accuracy  2.0% 10 - 95% 0.1%  Open Circuit Voltage : 1.2V  Overload Protection : 250V DC/AC (RMS) DC Current Range Resolution Accuracy 660A 0.1A 6600A 1A  ( 1.0% + 5 Counts ) 66mA 10A 660mA...
  • Page 26 AC Current Range Resolution Accuracy 660A 0.1A 6600A 1A ( 1.5% + 5 Counts ) 66mA 10A 660mA 100A 10mA ( 3.0% + 5 Counts )  Overload Protection: In A and mA range, Fuse: FF600mA/1000V. In A Mode: Fuse: FF10A/500V. When the target current is larger than 5A, do not continue the measurement for more than 10 sec.

  • Page 27: Maintenance And Repair

    Maintenance and Repair Battery Replacement WARNING TO AVOID ELECTRICAL SHOCK, PRODUCT DAMAGE OR PERSONAL INJURY, REMOVE TEST LEADS BEFORE OPENNING BATTERY COVER. ”is Replace batteries when the battery indicator“ on. Remove the battery cover and replace a new battery.

  • Page 28: Test Leads Replacement

    WARNING REPLACE TEST LEADS WITH IDENTICAL OR COMPATIBLE LEADS. LEAD SPEC：1000V 10A. Replace new leads if the current leads worn. 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 29: Features

    (Back Page) Features  LCD Display  Auto Ranging  Relative Measurement  Non-Contact Voltage Detector  True RMS  Diode Test  Continuity Buzzer  MAX/MIN Display  Data Hold  Auto Power Off  Low Battery  Back Light...

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