Dawson DDM190
Contents
1. THE USER MANUAL READ THE USER MANUAL BEFORE USING THE METER A 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 Safety Symbols Important safety information please refers to the user manual Earth ground Indicates compliance with requirements for double insulation gt He Fuse must be replaced with ratings specified in the manual A 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 m2. Tools Inc 1142 S Diamond Bar Blvd 858 Diamond Bar CA 91765 Phone 310 728 6220 www DawsonTools com oe 23 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 24
3. Dawson DDM190 Digital Multimeter User s Manual TABLE OF CONTENTS LIMITED WARRANTY AND LIMITATION OF LIABILITY si ccscccsicciecdssccecccssccsecdsacescesssecdectsaeed 3 OutiOf the BOX essensen 3 Accessories Error Bookmark not defined Safety Information cccccccccccseestseceeeeeeees 7 COrtifiCAtiON cccccccccccccsssssccececesssssseeseesceeees 7 INTRODUCTION cccesssssssssssssssssseseees 7 Overview Figures and Components ccecceseeeeeeees 8 Buttons and Components s000eceees 8 Display De SCrIPtiON cccccccccceseessseees 10 USING THE METER cssceesesssssssesseees 10 PLO DAT ACON siisii 10 DC AC Voltage Measurement 00 11 Resistance Measurement 12 Diode Test Continuity Remote AC Voltage Detection Maximum and Hold o e 17 Auto KO i AEEA E E E 17 SPECIFICATIONS ssssccccsssccccssssecsssceees 18 General Specification ccccccccccssessssseeees 18 Technical Specification ccccecccccceeeeees 19 MAINTENANCE AND REPAIR 0sseceseees 22 REDIF auseneen a te lontee 22 Test Leads Replacement cccscccccceceeees 23 Replacing Batteries ccccccccccccccscssseseeees 23 CONTACT DAWSON cccccssssscessssccesessees 23 FEATURES wvisccccevecescessesecveceevedseveeses Back Page LIMITED WARRANTY AND LIMITATION OF LIABILITY This instrument from Dawson Tools Inc will be free from defects in wo
4. HOCK AND INJURY DO NOT TEST VOLTAGES HIGHER THAN DC AC 600V Rotate the probe knob clockwise to extend the probe from the Meter Insert the black test lead or test clip in the COM jack Set the rotary switch to the Vz position Press the FUNC button to switch between DC and AC measurements Auto range is selected by default and manual ranges can be chosen by pressing the RANGE button multiple times Hold RANGE to return to Auto 11 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 this is normal because of the sensitivity of the Meter When the Meter is connected to the circuit true readings will be displayed Resistance Measurement A WARNING TO AVOID ELECTRICAL SHOCK AND INJURY POWER OFF THE CIRCUIT AND DISCHARGE THE CAPACITANCE BEFORE MEASURING RESISTANCE Rotate the probe knob clockwise to extend the probe from the Meter Insert the black test lead or test clip in the COM jack n Set the rotary switch to the Q position Auto range is selected by default and manual ranges can 12 be chosen by pressing the RANGE button multiple times Hold RANGE to return to Auto Connec
5. Qbuilt in buzzer will make sound Open circuit voltage 0 5V Overload Protection 250V DC or rms AC AC Voltage Detect Test Sensitivity Voltage sensitivity gt 50V adjustable Frequency 50Hz Distance lt 150mm change along with the sensitivity Also affected by target material and voltage Non contact detecting 21 Maintenance and Repair Repair Please follow these steps closely if the Meter is not functioning properly 22 Check batteries replace with new batteries if low battery indicator ES appears Follow User s Manual to confirm all procedures Before sending Meter back for repair include a description of the problems encountered Remove batteries and pack Meter well to avoid damage in delivery Dawson does not cover damage due to delivery Repair or service not covered in this manual should be performed only by the authorized service center or qualified personnel Test Leads Replacement A WARNING REPLACE TEST LEADS WITH IDENTICAL OR COMPATIBLE LEADS LEAD SPEC 600V 10A Replace new leads if the current leads are wear and tear Replacing Batteries Follow these steps to replace batteries Turn off the Meter Loosen the battery compartment door and remove the door from the case bottom Remove batteries and replace with new batteries Re attach the battery compartment door to the case bottom and tighten screw Contact Dawson Dawson
6. consumes power o There is NO auto power off for this function Always set the power switch to the OFF position when the Meter is not in use Data Hold 16 To hold the reading of a measurement press DATAH button once D H will appear on the LCD and reading will be held Press again to cancel 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 17 When not in use the Meter will automatically turn off after 15 minutes After auto off press any button to bring the power back on The Meter will beep 5 times 1 minute before and a long beep right before it turns off Hold DATA H button followed by turning on power to disable auto off 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 Overload Indication Displays OL Sampling Time Approx 0 4 second time Low Battery Indication ES Auto Power Off 15 min Power Supply 1 5V x 2 AAA battery Operating Temperature 32 F To 104 F 0 C To 40 C Storage Temperature 10 F To 122 F 10 C To 50 C Dimension 8 2x1 5x1 14 in 208x38x29m
7. e 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 a 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 Display Description AC Alternating Current DC Direct Current AS AC or DC pt Diode 1 Buzzer M H Maximum reading Hold D H Data hold AUTO Auto range EF 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 In manual range if the range to be measured is unknown start off with the highest range In manual range OL is displayed when overload occurs Choose a higher range if possible to acquire correct reading 10 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 Elis displayed Please replace batteries DC AC Voltage Measurement WARNING USE CAUTION WHEN MEASUREING HIGH VOLTAGE CIRCUITS TO AVOID ELECTRICAL S
8. easuring 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 Certification CAT II This meter has meet IEC1010 1 standard with an overvoltage category CAT II and pollution2 e C 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 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 DATA H Hold Button Panel LCD Display COM Jack 0090 SN OT PN PPP Rb aN PS Front Panel 123 4567 8 9 1011 1213 Buttons and Components Description RANGE Button Choose auto or manual range FUNC Button Switch between AC DC or between resistance continuity or diod
9. m Weight Approx 3 902 110g including battery 18 Technical Specification DC Voltage Range Resolution Accuracy 200mV 0 1mV 2V 0 001V 20V 0 01V 0 7 2 counts 200V 0 1V 600V 1V Input Impedance 10MQ Overload Protection o 200mV range 250V DC or AC rms o 2V to 600V ranges DC 600V or AC 600V rms Max Input Voltage 600V DC AC Voltage Range Resolution Accuracy 200mV 0 1mV 0 8 3 counts 2V 0 001V 20V 0 01V 0 8 3 counts 19 200V 0 1V 0 8 3 counts 600V 1V 1 0 3 counts Input Impedance 10MQ Overload Protection o 200mV range 250V DC or AC rms o 2V 600V ranges DC 600V or AC 600V rms Frequency Range 40 to 400Hz Response Average sine wave rms Maximum Input Voltage 600V AC rms Resistance Range Resolution Accuracy 2000 0 10 1 0 3 counts 2kQ 0 001kQ 1 0 1 counts 20kQ 0 01kQ 1 0 1 counts 200kQ 0 1kQ 1 0 1 counts 2MQ 0 001MQ 1 0 1 counts 20MQ 0 01MQ 1 0 5 counts Open Circuit Voltage 0 25V Overload Protection 250V DC or AC rms 20 Diode Resolution Function gt 0 001V reads diode forward voltage Forward DC Current 1mA Reversed DC Voltage 1 5V Overload Protection 250V DC or AC rms Continuity Function 1 If resistance is lower than 50
10. rkmanship 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 Accessories Test Leads 1pc Alligator Clip amp cable 1pc 1 5V AAA Battery 2pcs z Case 1pc User s Manual 1pc Safety Information WARNING TO REDUCE THE RISK OF FIRE ELECTRICAL SHOCK PRODUCT DAMAGE OR PERSONAL INJURY PLEASE FOLLOW THE SAFETY INSTRUCTIONS DESCRIBED IN
11. t 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 o The Meter may take a few seconds to reach steady reading if the measuring resistance is above 1MQ o When the input is not connected i e an open circuit the figure OL will be displayed Diode Test 13 Rotate the probe knob clockwise to extend the probe from the Meter Insert the black test lead or test clip in the COM jack Set the rotary switch to the Pte position Press FUNC to choose diode measurement P is displayed Connect leads to the circuit terminals Read the measurement from the display NOTE The Meter shows the forward voltage drop If the lead connection is reversed OL is displayed Continuity A 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 Insert the black test lead or test clip in the COM jack Set the rotary switch to the ell position Press FUNC to choose continuity test al is displayed Connect leads to the circuit terminals If continuity exists i e resistance is less than 500 built in buzzer will sound If the result is an open circuit or the circuit resistance measured is higher than 200Q OL is displa
12. yed 14 Remote AC Voltage Detection A WARNING USE CAUTION WHEN MEASUREING HIGH VOLTAGE CIRCUITS TO AVOID ELECTRICAL SHOCK AND INJURY BEFORE CHECKING AN UNKNOWN OUTLET ALWAYS TEST THE METER ON A KNOWN CIRCUIT TO ENSURE THE AC VOLTAGE DETECTION FUNCTION IS WORKING PROPERLY A 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 Set the rotary switch to the Vx position and check if the low battery sign E is shown If so the batteries should be replaced 15 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 if AC voltage is present red LED Indicator will flash along with an audible warning In the places where multiple leads and jacks are present rotate the sensitivity knob clockwise to set a lower detecting sensitivity This is to target a single lead or power socket to be measured NOTE o When using the ACV detecting function always start off from highest sensitivity o In this TEST mode even though there is no sound indication the Meter still
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