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Dawson DCM201A User Manual

Digital clamp meter
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Dawson DCM201A
Digital Clamp Meter

Table of Contents

OF LIABILITY ............................................................. 3
Out of the Box ........................................................ 3
Safety Information ................................................. 3
Accessories ............................................................. 3
INTRODUCTION........................................................ 4
Preparation ............................................................ 4
Operations ............................................................. 4
Components and Buttons ....................................... 5
Symbols .............................................................. 5
Names of the Components................................. 5
Switches and Buttons ......................................... 6
LCD Display Features .......................................... 6
SPECIFICATIONS ......................................................... 7
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Summary of Contents for Dawson DCM201A

  • Page 1: Table Of Contents

    Dawson DCM201A Digital Clamp Meter Table of Contents User’s Manual LIMITED WARRANTY AND LIMITATION OF LIABILITY ............. 3 Out of the Box ............3 Safety Information ..........3 Accessories ............. 3 INTRODUCTION............4 Preparation ............4 Operations ............. 4 Components and Buttons ........5 Symbols ..............
  • Page 2 Battery Replacement ..........15 Setting MAX/MIN Recording ........ 10 Test Leads Replacement ........16 REL/INRUSH Measurement ........11 CONTACT DAWSON ..........16 Backlight and clamp light ........11 FEATURES ........... Back Page Auto Power Off ............. 11 Measuring Preparations ........11 Current (AC/DC) Measurements......

  • Page 3: User's Manual

    LIMITED WARRANTY AND LIMITATION OF LIABILITY Accessories This instrument from Dawson Tools Inc. will be free from defects in  1000V 10A Test Leads workmanship and material for three years from the date of original purchase.  User’s Manual This warranty does not cover defects resulting from damage caused by the ...

  • Page 4: Introduction

    3. Do not touch the tips of test leads when performing measurement. DCM201A is a portable, hand-held yet professional meter that 4. If the measurement is above 60V DC or 30V AC, make sure features an LCD with backlight, overload protection and low keeping hands below the tactile barrier and finger guards.

  • Page 5: Components And Buttons

    Meter from maximum range and then adjust accordingly. Names of the Components 7. Remove the leads from the circuit first before switching 1. Clamp Jaws：Measure Current between functions. 2. Clamp Light 8. Do not power the circuit when measuring resistance, 3.

  • Page 6: Switches And Buttons

    COM: Common Input Terminals Rotary Switch: switch between measurements LCD Display Features AC、DC 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 Switches and Buttons Percentage (Duty Ratio) B.L/HOLD button: to hold the reading or to turn on backlight mV, V...

  • Page 7: Specifications

    Specifications Technical Specifications The Meter should be calibrated annually between 18℃ ~ 28℃ and Temperature: 235℃ Relative Humidity: <75% a relative humidity less than 75%. AC Current 1.3.1 General Specifications Range Resolution Accuracy  Manual and Auto Mode 0.01A  Power Overload Protection ...
  • Page 8 Attention: During small voltage measurements, the Meter may display Frequency fluctuating readings when the test leads are not connected to the Frequency Through Clamp Measuring (A Mode) circuit. This is normal due to the high sensitivity of the Meter and will not affect the measurement.
  • Page 9  Input Resistance: 10M  Frequency Through “HZ/DUTY” Mode Maximum Input Voltage: 750V AC (RMS) Range Resolution Accuracy Duty Ratio through “HZ/DUTY” Mode 9.999Hz 0.001Hz  Frequency Response:10 ~10MHz 99.99Hz 0.01Hz  Input Voltage Range: ≥ 2V AC (RMS) Input voltage should 999.9Hz 0.1Hz increase as circuit frequency increase...

  • Page 10: Using The Meter

    Capacitance Using the Meter Range Resolution Accuracy 9.999nF 0.001nF Display Hold 99.99nF 0.01nF During the measuring, press the “B.L./HOLD” button once to hold 999.9nF 0.1nF the reading, press again to release hold. 9.999F 0.001F  (3.0% + 5 Counts) 99.99F 0.01F Manual Measurement 999.9F...

  • Page 11: Setting Max/Min Recording

    Attention： REL/INRUSH Measurement “Hz/%” is off when the Meter is measuring Max/Minimum of the 1. Press “REL” button to enter relative measurement mode. When circuit. in this mode the current reading will be stored and the display shows the difference of the current reading and the stored Setting MAX/MIN Recording reading;...

  • Page 12: Measuring Preparations

    properly seated within the clamp jaws and centered within the Auto Power Off clamp. Also note that currents moving in different directions 1. When not in use, the Meter will automatically turn off after 15 will cancel each other, so one wire must be measured at a time minutes.

  • Page 13: Frequency And Duty

    Attention：  Measuring two or more wires together will cause false readings. Attention：  When measuring low voltage sources, the reading will fluctuate  The accuracy of the reading is guaranteed between 10Hz ~ 1kHz. on the display when the test leads are not connected to the Below or above this range is still measurable, but the reading is circuit.

  • Page 14: Resistance Measurement

     “ ”indicates the maximum input voltage is 750V AC (RMS). 2. Turn the rotary switch to , this mode measures the resistance. 3. Connect the test leads across the circuit or resistors. Measuring in “HZ/DUTY” Mode: 4. Read the measurement from the display. WARNING Attention: DO NOT MEASURE INPUTS OF MORE THAN 250V AC TO...

  • Page 15: Continuity

    3. Place leads at the terminals of the capacitor after it is Continuity discharged. WARNING 4. Read off the measurement from the display. AVOID ELECTRICAL SHOCK AND INJURY. POWER OFF THE CIRCUIT DISCHARGE CAPACITANCE BEFORE MEASURING THE CONTINUITY. Attention： To improve the accuracy of measurements below 10nF, subtract 1.

  • Page 16: Battery Replacement

    WARNING Contact Dawson REMOVE THE TEST LEADS FROM THE METER BEFORE REMOVING THE BATTERY CASE TO AVOID ELECTRICAL Dawson Tools, Inc. SHOCK AND INJURY. 1142 S. Diamond Bar Blvd., #858 Diamond Bar, CA 91765 1. Replace new batteries if the Meter displays “...

  • Page 17: Features

    (Back Page) Features  LCD Display  Jaw Opening  Auto Ranging  Auto Power Off  Relative Measurement  Diode Test  Continuity Buzzer  MAX/MIN  Data Hold  Work Light  Back Light  Low Battery Indicator ...

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