User Manual
Contents
1. DIGITAL MULTIMETER aon em kN OHZ duds DDM453 DIGITAL MULTIMETER FUNC feum Hz Ncv H ET qp intertek Thank you for purchasing our product 30380912 As our customers are our top priority and we strive for 100 satisfaction we would appreciate your feedback on the product C Please contact our customer service department at 310 728 6220 or at www dawsontools com if you have any questions regarding this product Our professional support team is always ready to answer your enquiries and provide assistance r VOTEMP l mAuA ll 00 05 3843 DAWSON 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 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 vi2. input range 22V AC rms voltage input will increase as frequency increases Max input voltage 600V rms Duty Cycle Range Resolution Accuracy In current mode Signal input range uA 260uA rms mA 26mA rms A 20 6A rms current input will increase as frequency increases Max input current 10A rms In voltage mode Signal input range 20 6V AC rms voltage input will increase as frequency increases Input impedance 10MQ Max input voltage 600V rms 16 DAWSON Temperature Measurement Range Resolution 20 C 1000 C 1 C 2 0 of reading 2 digits 4 F 1832 F 1 F 2 0 of reading 4 digits Overload protection Fuse F600mA 600V 8 MAINTENANCE This section provides basic maintenance principles including replacing batteries and fuses Do not attempt to repair or perform any maintenance on the meter not included in the section below unless you are qualified personnel A WARNING To prevent injury or damage to the meter do not allow moisture inside the casing Before opening the battery cover case disconnect test leads from all circuits Clean the meter regularly with a damp cloth and a small amount of detergent do not use abrasives or solvents Dirty wet input jacks can affect readings To clean input jacks 1 Turn off the meter and remove test leads 2 Brush off any dirt or contaminants from the input jacks 3 Use a cotton swab with a cleaner lubricant i e WD
3. multifunction position 1 Turn rotary switch to the capacitance position 2 Resistance is the default mode 2 Connect leads across voltage source load 3 Connect leads across circuit 3 Read voltage measurement on the display 4 Read resistance measurement on the display 6 2 Continuity ral oFF or 1 Turn rotary switch to the TEMP position 1 Turn rotary switch to multifunction position 2 Press FUNC to select Fahrenheit or Celsius 2 Press FUNC to switch to continuity mode 3 Touch tip of thermocouple to the test object 3 Connect leads across circuit 4 Read measured temperature on the display 4 If measured resistance is less than 50Q the buzzer will sound 9 1 Fre x 1 Frequency lt 10MHz x G amp 6 3 Diode Test AG 299 NI 1 Turn rotary switch to the Hz position 1 Turn rotary switch to multifunction position 2 Frequency is the default mode 2 Press FUNC to switch to diode mode 3 Connect leads across circuit 3 Connect INPUT lead to anode and COM lead to cathode 4 Read measured frequency on the display 4 Read measured forward biased voltage drop DAWSON 9 2 Duty Cycle lt 99 e SE 1 Turn rotary switch to the Hz position 2 Press Hz to select duty cycle 3 Connect leads across circui
4. rotary switch to mA position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 5 For frequency duty cycle display press Hz 3 2 AC Current large 10A ME e Ee M Ny 1 Turn rotary switch to A position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 4 1 DC Current Medium 600mA 1 Turn rotary switch to mA position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 5 1 DC Current Small 600A x Q 1 Turn rotary switch to pA position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 5 2 AC Current Small lt 6000uA Go e uu M 1 Turn rotary switch to uA position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 5 For frequency duty cycle display press Hz DAWSON DAWSON 6 1 Resistance lt 60MQ e 7 Capacitance lt 60mF Geko AL a 1 Turn rotary switch to
5. stop NCV detection 6 Rotary Switch 7 Input Jack all measurements current below 600mA 8 A Jack current measurements between 600mA 10A only 9 Common Jack all measurements DAWSON 5 DISPLAY DESCRIPTION ToP 7a 5 i Ss Kl AC Alternating Current EB e Negative DC Value E DC Direct Current EJ ca Low Battery 5 Auto Power Off n Auto Range Active Ell Data Hold n DE Diode Test E on Continuity Test SL be l1 Ve CF DA KMOHz 0 a mumFVA 2 EJ Duty Cycle Mode 43 EJ C Temperature in Celsius EJ F Temperature in Fahrenheit El KMO Resistance Els Frequency 12 WF Capacitance EEA um DC AC Current 12 mV DC AC Voltage KE Main Display A DAWSON 6 ROTARY SWITCH FUNCTIONS 1 Turn rotary switch to DC voltage position 2 Connect leads across voltage source load 3 Read voltage measurement on the display 2 AC Voltage lt 600V eso NA 1 Turn rotary switch to AC voltage position 2 Connect leads across voltage source load 3 Read voltage measurement on the display DAWSON DAWSON 1 Turn rotary switch to A position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 1 Turn
6. 40 to clean the input jack 4 Use a new swab on each jack to prevent cross contamination Accuracy 17 DAWSON m REPLACING THE BATTERY A WARNINGS To avoid false reading that could lead to injury or damage to the meter replace the batteries as soon as the Ca symbol appears Turn off the meter and remove the test leads before opening the battery cover to avoid injury or damage to the meter To replace the battery 1 Turn off power to the meter 2 Remove test leads from input jacks 3 Loosen the screw on the battery cover and remove cover from meter 4 Replace used battery with a new one 5 Replace battery cover and secure to meter REPLACING THE FUSES A WARNING To prevent injury or damage to the meter turn off power to the meter and disconnect test leads from input jacks before opening case To replace the fuses 1 Turn off power to the meter 2 Remove test leads from input jacks 3 Remove the 6 screws on the back case and remove back case from meter 4 Replace blow fuse s with new fuses of the same electrical ratings see specifications 5 Replace back cover and secure to meter 12 DISPOSAL RECYCLE pad Caution This symbol indicates that equipment and its accessories x Shall be subject to a separate collection and correct disposal 18
7. an ia a am Sem Oi LILILILI DDM453 DIGITAL MULTJMETER m Coa He Nev Ce 5 F Ro vatem i A A com a TRAMA MAX MAX 40A 600mA li FUSED FUSED 7 MAX 30 sec SS Se m DAWSON 1 LCD Display 2 Hold Backlight Button Press ae to hold the current reading on the display Press the button again to release the hold Hold um to turn on the backlight Hold the button again to manually turn off the backlight 3 Function Button Press FUNC to switch between functions or between AC DC current 4 Frequency Duty Cycle Button Hz In AC voltage current modes press Hz and the display will show the frequency measurement Press the button again to switch to duty cycle Press the button a third time to return to normal display With the rotary switch in the Hz position the default mode is frequency Press the Hz button to show the duty cycle Press the button again to switch back to frequency display 5 NCV Button Hold the NCV button down in any mode and the meter will activate the non contact voltage detection Move the top of the meter towards an AC voltage source and the buzzer will sound and the NCV indicator will light up if voltage is detected Release the NCV button to
8. pen circuit voltage 1 0V DC 14 DAWSON Diode Test Resolution Description DAWSON Frequency AC current Range Resolution Accuracy Display shows the forward biased 0 001V voltage drop of the diode Overload protection 600V rms Open circuit voltage 3 2V DC Test current 1 0mA Capacitance Measurement Range Resolution Accuracy 0 01nF 100nF 0 1nF iuF inF 10uF TUNE 4 096 of reading 5 digits 100uF 100nF mF 1uF Lu STRE 1 5 of reading 5 digits 999 9Hz 0 1Hz 0 001kHz Reference only e Signal input range uA 260uA rms mA Z6mA rms A 20 6A rms current input will increase as frequency increases Max input current 10A rms Frequency Hz Range Resolution 9 999Hz 0 001Hz 99 99Hz 0 01Hz 999 9Hz 0 1Hz 9 999kHz 0 001kHz 99 99KHZ 0 01kHz Accuracy 1 5 of reading 5 digits Frequency AC voltage Range Resolution 99 99Hz 0 01Hz 999 9Hz 0 1Hz 9 999kHz 0 001kHz gt 10kHz 0 01kHz Signal input range 20 2V AC rms voltage input will increase as frequency increases Input impedance 10MQ Max input voltage 600V rms Accuracy 1 5 of reading 5 digits Reference only 15 10mF 10uF 999 9KHZ 0 1KHz 100mF 10uF 9 999MHZ 0 001MHz e Max input voltage 600V rms Signal
9. rent Measurement Resolution DAWSON Accuracy 6V 0 001V 0 01V 1 0 of reading 5 digits Input impedance 10MQ Max input voltage 600V rms Frequency response 40 400Hz calibrated to rms of sine wave average response DC Current Measurement Resolution 0 1uA 1uA 0 01mA 0 1mA 10mA Accuracy 1 0 of reading 5 digits BOMA 1 0 g gits 600mA 10A Overload protection p mA input Fuse FF 600mA H 600V 10A input Fuse FF 10A H 600V e Max input current pA mA input 600mA rms 10A input 10A rms 2 0 of reading 8 digits 18 600A 0 1uA 60004A 60mA 600mA 1uA 0 01mA 0 1mA 1 2 of reading 5 digits 10A 10mA 2 0 of reading 8 digits Overload protection MA mA input Fuse FF 600mA H 600V 10A input Fuse FF 10A H 600V Frequency response 40 400Hz calibrated to rms of sine wave average response e Max input current p mA input 600mA rms 10A input 10A rms Resistance Measurement Resolution Accuracy 6000 0 10 0 001kQ 0 01kQ 0 7 of reading 3 digits 600kQ 0 1kQ 6MQ 0 001MO Resolution 0 10 0 01MQ e Max input voltage 600V rms If measured resistance is greater Description than 50O the meter s buzzer will sound Overload protection 600V rms O
10. sit www DawsonTools com to obtain a return authorization within the US only A return authorization is necessary before returning anyinstrument 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 Testleads x1 pair User s manual x1 9V battery x1 Type K Thermocouple x1 DAWSON 1 INTRODUCTION DDM453 is a stable safe reliable compact digital handheld 6000 count auto ranging multimeter This meter can measure AC DC voltage AC DC current resistance capacitance frequency duty cycle temperature diodes and continuity This meter is ideal for many situations whether you re a professional or causal user E A WARNINGS To avoid electric shock and injury or damage to the meter observe the following safety methods Check the meter before use to make sure there was no damage during transit Check that the insulation on the test leads is not damaged and or wires are not exposed f an
11. t 4 Read measured duty cycle on the display 11 Non Contact Voltage Detector oi 1 In any mode hold the NCV button down 2 Move the top of the meter toward voltage source 3 If AC voltage is present NCV indicator flashes buzzer beeps 11 DAWSON 7 Specifications Operating Altitude 2000m Relative Humidity 75 max operating Operating Temperature 0 C 40 C 32 F 104 F 8096 RH Storage Temperature 10 C 60 C 14 F 140 F 7096 RH Accuracy Temperature 18 C 28 C 64 F 82 F 8096 RH Temperature Coefficient 0 1x specified accuracy C lt 18 C or gt 28 C Sampling Frequency approx 3 times sec Fuse Protection uA mA input FF 600mA H 600V 10A input FF 10A H 600V LCD Display 6000 count display 5999 max reading Power Supply 9V battery Dimensions 150mmx74mmx x48mm 6 3 x2 9 x1 9 Weight 8 902 250g Safety Rating CAT Ill 600V e Safety Standards IEC61010 1 Pollution Degree 2 Accuracy of reading of least significant digits 7 ELECTRICAL SPECIFICATIONS DC Voltage Measurement Range Resolution Accuracy 600mV 0 1mV 6V 0 001V 0 5 of reading 2 digits 0 01V 600V 0 1V Input impedance 10MQ Max input voltage 600V rms 12 DAWSON AC Voltage Measurement Range Resolution Accuracy Range AC Cur
12. y faults or abnormalities are observed the meter should not be used and should be checked out prior to use Never exceed the protection limit values indicated in specifications for each range of measurement Always be careful when working voltages above 60V DC or 30V AC rms keep fingers behind the probe barrier while measuring Make sure the rotary switch is in the correct position before measurement Never use the meter in an environment with explosive gas vapor or dust Always keep fingers behind probe barriers when making measurements When connecting test leads to a circuit connect the black test lead first then the red lead Disconnect in the opposite order Turn off power and discharge all capacitors first before measuring resistance continuity or diodes Failure to follow safety guidelines could compromise the safety features of this meter Do not use the meter without the battery cover in place Replace the batteries as soon as the low battery symbol appears Cal to avoid false reading that could lead to electric shock and injury Remove test leads from all circuits before opening the battery cover 2 DAWSON EN SAFETY SYMBOLS Important safety information Ground AC alternating current El Double insulation protection DC direct current Fuse EJ DC AC Voltage or Current ce Compliance with EU regulations A FEATURE DETAILS cad Um p O peg
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