Dawson DDM230C
Contents
1. AC Current Range Resolution Accuracy 660 0 1pA Pewee 6 1 5 5 Counts 66mA 10 660mA 100A 10A 10mA 3 0 5 Counts e Overload Protection In uA 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 Pause for 1 minute after the measuring e Frequency 50 60 Hz e Measurement True RMS 25 Maintenance and Repair Battery Replacement WARNING TO AVOID ELECTRICAL SHOCK PRODUCT DAMAGE OR PERSONAL INJURY REMOVE TEST LEADS BEFORE OPENNING BATTERY COVER Replace batteries when the battery indicator ES is on Remove the battery cover and replace a new battery 26 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 4858 Diamond Bar CA 91765 Phone 310 728 6220 www DawsonTools com X Do not recycle 27 Back Page Features 28 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 Light2. AC current or voltage should be 296710096 of the maximum level DC Voltage Range Resolution Accuracy 660mV 0 1mV 0 8 3 Counts 6 6V 0 001V 66V 0 01V 0 5 5 Counts 600V 0 1V e Input Resistance 10 Overload Protection In 660mV Range 250V DC AC In 6 6V to 600V Range 600V DC AC 19 e Maximum Input Voltage 600V DC AC Voltage Range Resolution Accuracy 660mV 0 1mV 1 5 5 Counts 6 6V 0 001V 1 2 5 Counts 66V 0 01V 600V 0 1V 1 5 5 Counts e Input Resistance 10 Overload Protection In 660mV Range 250V DC AC In 6 6V to 600V Range 600V DC AC e Maximum Input Voltage 600V AC RMS e Frequency 50 60 Hz e Measurement True RMS 20 Resistance Range Resolution Accuracy 6600 0 10 6 6kO 0 001kQ 66kQ 0 01kQ 0 8 5 Counts 660kQ 0 1kQ 6 6MQ 0 001MkQ 66MO 0 1MO 1 5 5 Counts e Open Circuit Voltage 0 4V Overload Protection 250V DC AC RMS Diode Resolution Function Displays approx forward 0 001V Pt biased voltage e Forward Biased Current 1mA e Reversed Biased Voltage 3 3V Overload Protection 250V DC AC RMS 21 Capacitance Range Resolution Accuracy 6 6nF 0 001nF 4 5 Counts 66nF 0 01nF 660nF 0 1nF 6 6 uF 0 01pF 5 3 Counts 66uF 0 01uF 660uF 0 1uF 6 6
3. A connect to 10A if the target current is between 600mA to 10A Break the circuit and connect the leads across the broken circuit Red to higher voltage black to the lower Power the circuit and read the measurement from the display If the Meter displays OL overload switch the rotary switch to a higher range 17 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 OL or OL Sampling Time 0 4 seconds 1 second on current measurement Units Display Display functions and units Auto Power Off 30 minutes Input Power 9V DC Battery Type 6F22 Low Battery Indication LCD display E3 Working Environment Temp 32 F 104 F 0 C 40 C Storage Temperature 14 F 122 F 10 C 50 C Size 7 x 3 4 x 2 in 180x86x52mm Weight 8 80z 250g exclude battery 18 Technical Specifications Environmental Temperature 74 9 F relative humidity 7596 Features of True RMS e For non sinusoidal signal measurement the Meter provides more accurate measurement than the traditional averaging method e If in AC current mode the Meter may display a random reading between 1 and 50 when the input is not active This will not affect the accuracy of measurement e True RMS requires a minimum input level
4. Dawson DDM230C True RMS Multimeter with Bar Graph Display User s Manual Table of Contents LIMITED WARRANTY AND LIMITATION OF LIABILITY eerte eerie ooh 3 Out of the BOX sh ie tee es Accessories Safety Information 8 INTRODUCTION eee eere eren 8 Overview Components and Buttons 9 Components eese 9 Buttons and Symbols 10 LED Display 5 Dg 11 USING THE 12 Display Hold eese 12 Switch between Modes Relative Measurement Max Min Measurement 14 Auto Off eene 14 NCV Non Contact Voltage Detector 14 DC and AC Voltage Measurement 15 Resistance 16 Continuity DIODE Capacitance Frequency and Duty Ratio 17 CULLEN Bice e RR 17 SPECIFICATIONS 18 General Specifications 18 Technical Specifications 19 MAINTENANCE AND REPAIR 26 Battery Replacement Test Leads Replacement 27 CONTACT 0 27 FEATURES eee e eee eere eene Back Page LIM
5. E OR PERSONAL INJURY PLEASE FOLLOW THE SAFETY INSTRUCTIONS DESCRIBED IN THE USER MANUAL READ THE USER MANUALS BEFORE USING 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 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 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 Check the terminals every time before operating the Meter Do not operate the Meter if the terminals are damaged or one or more functions are not working properly 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
6. ITED 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 3 Accessories Test Leads 1 pair 9V 6F22 Battery 1pc User s Manual Safety Information N WARNING TO REDUCE THE RISK OF FIRE ELECTRICAL SHOCK PRODUCT DAMAG
7. between DC and AC voltage measuring 15 NOTE 660mV range is only accessible in Manual Mode Resistance Turn the rotary switch to yl 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 Continuity Press FUNC during resistance measurement to switch to continuity test Connect the black lead to input COM and the red lead to Use both leads to test the target resistance the Meter will buzz if the resistance is less than 50 ohms Diode Press FUNC during continuity test to switch to diode test Connect the black lead to input COM and the red lead to Connect red lead to anode and black to cathode the Meter shows forward biased voltage 16 Capacitance Turn the rotary switch to Connect the black lead to COM and the red lead to IF 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 Use both leads to test the target and read off both values from the Meter Press 2 to switch between frequency and duty ratio 96 Current Disconnect the target circuit from power source and discharge the circuit Turn the rotary switch to appropriate mode A mA or A Connect the black lead to COM and the red lead to pA mA if the target current is less than 600m
8. dard with an overvoltage category 600V CAT IV and pollution degree 2 e C 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 8 Components and Buttons Components NCV LED Indicator LCD Display Buttons Function Rotary Switch Input amp PR Voltage Sensing Area 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 Symbols OFF power off Hz Input terminal for Resistance Capacitance Voltage Frequency Diodes and Continuity HA mA pA mA input 10A 600mA to 10A current input COM Common Input Terminals e 79 Backlight light ON OFF 10 LCD Display 11 m 8888 ad luo m B B B 0 F MkoHz m p b Alternating Current DC Direct Current eil Diode Continuity AUTO A
9. mF 0 001mF 4 5 Counts 66mF 0 01mF Overload Protection 250V DC AC RMS Continuity Resolution Function The Meter buzz when the e 0 10 target resistance is smaller then 300 e Open Circuit Voltage 1 2V Overload Protection 250V DC AC RMS 22 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 e Range 10Hz 10kHz e Input Voltage gt 0 2V AC Input voltage should increase along with the frequency Through Hz Mode Range Resolution Accuracy 66Hz 0 01Hz 660Hz 0 1Hz 6 6kHz 0 001kHz 66kHz 0 01kHz 1 5 5 Counts 660kHz 0 1kHz 6 6MHz 1kHz 66MHz 10kHz e Input Voltage 3V peak to peak AC Overload Protection 250V DC AC RMS 23 Duty Ratio Range Resolution Accuracy 10 9596 0 196 2 0 e Open Circuit Voltage 1 2V Overload Protection 250V DC AC RMS DC Current Range Resolution Accuracy 660A 0 1pA 6600 1pA 1 0 5 Counts 66mA 10 660mA 100A 10A 10mA 2 0 5 Counts e Overload Protection In uA 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 seconds Pause for 1 minute after measuring 24
10. nt and the Max Min readings will be recorded 13 Switch between Functions e During Voltage or Current measuring press FUNC button to switch between AC and DC measurements e When measuring Resistance Diode or Continuity press FUNC will switch between these modes Backlight Press 3 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 Press any button to turn the Meter back on To disable Auto Off hold FUNC button when turning on the Meter NCV Non Contact Voltage Detector Turn the rotary switch to NCV mode move the top of the Meter close to target The Voltage sensing indicator will flash and buzz if the Meter senses a voltage greater then 110V AC 14 A 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 e The voltage sensing indicator may turn on when a voltage is fed to the Meter e Other external interference ex Flashlight motor may trigger the NCV sensor DC and AC Voltage Measurement Turn the rotary switch to Mode connect the black lead to COM and the red lead to V input Use the two leads to test the target Measurement is shown on the display In DC mode the Meter also displays the polarity of red lead side input Press FUNC button to switch
11. the originals Safety Symbols on the Meter Important safety information please refers to the user manual Earth ground El gt Indicates compliance with requirements for double insulation A Important Safety Information Never use the Meter to measure voltages that might exceed 600V DC AC above earth ground Manual Mode if the circuit value is unknown start the Meter at the maximum range and then adjust accordingly 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 Inspect test leads and probes for cracks breaks or crazes on the insulation before using the Meter Remove the leads from the circuit first before switching between functions Do not power on the circuit when measuring resistance capacitance or diodes Do not measure the capacitance before the capacitors are discharged Do not operate the Meter near explosive gas vapor or under dust Stop the operation if the Meter or test leads appeared damaged or do not function properly Unless the battery cover and the Meter case are firmly closed do not use the Meter Repair or maintenance should be implemented by trained personnel Certification e CAT IV This meter has meet IEC1010 1 stan
12. uto Mode MAX Maximum Measurement Displayed MIN Minimum Measurement Displayed REL Relative Measurement Mode Auto Power Off Battery Low H Display Hold Percentage Duty Ratio mV V MilliVolt Volt Voltage A Amp Current nF uF mF Nanofarads Microfarads Millifarads MO Ohms Kilohms Megaohms Hz kHz Hertz Kilohertz Megahertz MHz NCV Non Contact Voltage lt gt USB Mode Using the Meter Display Hold During measurement press HOLD button to hold the current reading on the display Press HOLD again to unlock the reading Switch between Modes e When using the rotary switch to switch between current voltage capacitance and frequency mode the default range type is Auto Press RANGE button to enter Manual mode Each press increases the 12 measuring range and will return to minimum range after maximum has been reached e Hold RANGE for 1 second to switch back to Auto mode e f the Meter in in Max Min mode Press RANGE to return to Normal mode Note Manual mode is not allowed in frequency measurement Relative Measurement Press REL button to enter Relative Measurement Mode Reading current measurement measurement when REL is pressed Max Min Measurement To Find Max Min of the measurement in any mode press MAX MIN to enter Maximum measurement and press again to enter Minimum measurement Holding the button will go back to normal measureme
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