Manual - Test Equipment Depot
Contents
1. A ATTENTION ON Alternating Current Refer to Manual This Instrument has gt Protective Conductor double insulation g Terminal INTRODUCTION The DM73C is a probe type digital multimeter capable of measuring DC and AC voltage resistance diode and continuity Its controls are Volts V Ohms Q Diode Test and Continuity Beeper a On Off AC DC and Hold See page 3 1 V Q input 2 Function selector 3 HOLD button 4 SHIFT button for AC DC or Diode Continuity 5 LCD Display 6 COM input MEASURING PROCEDURES Note When connecting or disconnecting test leads to or from a circuit always first turn off power to the circuit under test and discharge all capacitors DC AC Voltage Measurement Set the Function switch to V Select AC or DC by pressing the mode selector button AC or DC is displayed Connect the instrument to the circuit and read the measured voltage in the display Resistance Measurement Set the Function switch to Q Connect the instrument across the resistance and read the value in the display When measuring high resistance values take care not to touch the test leads Continuity Measurement Set the Function switch to Q Press the mode selector button once so that appears in the LCD Connect the instrument across the device or wire to be tested Beeper will sound when continuity is established The beeper also sounds when changing functions2. address Non Warranty Repairs and Replacement US and Canada Non warranty repairs in the United States and Canada should be sent to a Amprobee Test Tools Service Center Call AmprobeaTest Tools or inquire at your point of purchase for current repair and replacement rates In USA In Canada Amprobee Test Tools AmprobeaTest Tools Everett WA 98203 Mississauga ON L4Z 1X9 Tel 888 993 5853 Tel 905 890 7600 Fax 425 446 6390 Fax 905 890 6866 Non Warranty Repairs and Replacement Europe European non warranty units can be replaced by your Amprobea Test Tools distributor for a nominal charge Please check the Where to Buy section on www amprobe com for a list of distributors near you European Correspondence Address Amprobes Test Tools Europe P O Box 1186 5602 BD Eindhoven The Netherlands Correspondence only no repair or replacement available from this address European customers please contact your distributor 99 Washington Street Melrose MA 02176 Fax 781 665 0780 TestEquipmentDepot com 4 SPECIFICATIONS General Specifications isplay 3 3 4 digit LCD 3400 count easuring rate 2 5 second nominal argraph 34 segments updated 20 readings per second perating Temp range 0 to 40 C 80 RH orage Temp range 20 to 60 C 70 RH nvironmental Intended for Indoor use Altitude up to 2000 m easurement Accuracy x0 1 C atteries 2x LR44 SR44 or S76 fe 100 hours nominal Auto Power Off after 10 m
3. 340 kQ 3 4 34 MQ Accuracy 3400 340kQ 1 0 rdg 4 dgt 3 4M0 1 5 rdg 4 dgt 34 MO 3 0 rdg 5 dgt Max open circuit voltage 3400 range 1 2V all others 0 45V Protection 500VAC orDC Diode Test Range 3 4V Accuracy 2 0 rdg 3 dat Resolution 0 1mV in 3 4V range Short circuit current 1 0mA Max open circuit voltage 3 0VDC Audible indication lt 0 2V Overload prot 500VDC or AC rms Continuity Display response lt 0 5s Continuity threshold lt 35 Q Overload prot 500VDC or AC rms Accessories User Replaceable Parts TL73B Test lead with alligator clip VC11 Vinyl Case TP73B Replaceable Probe tip Battery Type SR44 LR44 or S76 99 Washington Street Melrose MA 02176 Fax 781 665 0780 7 TestEquipmentDepot com
4. DM73C AXawerose Digital Multimeter Pen Style DMM Users Manual e Manual de uso e Mode d emploi e Bedienungshandbuch e Manuale d Uso 99 Washington Street Test Equipment Melrose MA 02176 ki Depot Fax 781 665 0780 TestEquipmentDepot com 1 800 517 8431 AA AMPROBE DM73C Digital Multimeter Users Manual e Manual de uso e Mode d emploi e Bedienungshandbuch e Manuale d Uso 99 Washington Street Melrose MA 02176 PN 2728873 August 2006 Fax 781 665 0780 Amprobes Test Tools TestEquipmentDepot com All rights reserved Printed in Taiwan AA AMPROBE DM73C Digital Multimeter Users Manual e Manual de uso e Mode d emploi e Bedienungshandbuch e Manuale d Uso 99 Washington Street Melrose MA 02176 English Fax 781 665 0780 TestEquipmentDepot com WARRANTY Your Amprobes product will be free from defects in material and workmanship for 1 year from the date of purchase This warranty does not cover fuses disposable batteries or damage from accident neglect misuse alteration contamination or abnormal conditions of operation or handling Resellers are not authorized to extend any other warranty on Amprobe s behalf To obtain service during the warranty period return the product with proof of purchase to an authorized AmprobeeTest Tools Service Center or to a Amprobeedealer or distributor See Repair Section above for details THIS WARRANTY IS YOUR ONLY REMEDY ALL
5. OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STAUTORY INCLUDING IMPLIED WARRANTIES OF FITNESS FORA PARTICULAR PURPOSE OR MERCHANTABILITY ARE HEREBY DISCLAIMED MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you CERTIFICATIONS AND PRECAUTIONS m The DM73C instrument is UL cUL and EN61010 1 certified for Installation Category II 600V and Category Ill 300V Itis recommended for use with local level power distribution appliances portable equipment etc where only smaller transient overvoltages may occur and not for primary supply lines overhead lines and cable systems m Do not exceed the maximum overload limits per function see specifications nor the limits marked on the instrument itself Never apply more than 600VDC between the test lead and earth ground m Exercise extreme caution when measuring voltage gt 20V servicing CRT equipment m Inspect DMM test leads and accessories before every use Do not use any damaged part m Never ground yourself when taking measurements Do not touch exposed circuit elements or probe tips m Do not operate instrument in an explosive atmosphere EXPLANATION OF SYMBOLS AN DANGER High ZI Direct Current Voltage deeg
6. es observing the diagram in the battery area Cleaning Procedure Gently wipe dirt from the surface of the unit with a soft cloth moistened with a small amount of water or neutral cleanser Do not use benzene alcohol acetone ether paint thinner lacquer or ketone solvents on the units under any circumstances as these may cause deformation or discoloration REPAIR All test tools returned for warranty or non warranty repair or for calibration should be accompanied by the following your name company s name address telephone number and proof of purchase Additionally please include a brief description of the problem or the service requested and include the test leads with the meter Non warranty repair or replacement charges should be remitted in the form of a check a money order credit card with 3 expiration date or a purchase order made payable to Amprobea Test Tools In Warranty Repairs and Replacement All Countries Please read the warranty statement and check your battery before requesting repair During the warranty period any defective test tool can be returned to your Amprobes Test Tools distributor for an exchange for the same or like product Please check the Where to Buy section on www amprobe com for a list of distributors near you Additionally in the United States and Canada In Warranty repair and replacement units can also be sent to a AmprobeaT est Tools Service Center see below for
7. inutes Dimension 7 8 x1 1 x 1 4 Weight 21 lb Accessories Operating manual test lead with alligator clip 2 batteries installed spare tip CuOU lt mnOow zxUu Approvals Safety Conforms to EN61010 1 Cat 600V Cat III 300V Class 2 Pollution degree II UL3111 1 EMC Conforms to EN61326 1 The TL73B testlead and alligator clip is UL approved for use only with the DM73C following European Community Directives 89 336 EEC Electromagnetic Compatbility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marking However electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit Users should C This product complies with requirements of the exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference Electrical Specifications Accuracy at 23 C 5 C lt 75 RH guaranteed for one year DC Volts Ranges 340mV 3 4 34 340V 600V Accuracy 0 5 rdg 2 dgt Input Impedance 340 mV range gt 100MQ other ranges 10MQ Protection 600V DC or AC rms AC Volts Ranges 3 4V 34 340 600V Accuracy 1 5 rdg 8 dat 50 500Hz Input Impedance 10MQ Protection 600VDC or AC rms Resistance Ranges 340 Q 3 4 34
8. modes or for Probe Hold Diode Measurement Set the Function switch to Q Press the mode selector button twice so that appears in the LCD Connect the instrument across the device to be tested The forward voltage drop of a good diode is about 0 6V An open or reverse biased diode will read OL Data Hold Push the HOLD button to freeze the measurement reading and then remove the test leads while the reading remains displayed HOLD is useful when itis necessary to pay very close attention to your work Pushing the HOLD button again releases the display Automatic Shutdown This function causes the meter to enter power saving mode after approximately 10 minutes Disable automatic shutdown by holding the shift button down while turning the meter on MAINTENANCE In Case of Difficulties In the case of improper operation of the meter first review the operating instructions for possible errors in operation Inspect and check test leads for continuity Check the condition of the batteries The battery NN symbol appears when the voltage falls below the level where accuracy is guaranteed Replace batteries immediately Battery Replacement Warning In order to avoid electrical shock ID remove the test lead before opening the ee case To replace the batteries 2 LR44 M9 unscrew the battery hatch screw and remove gt the old batteries Install the new batteri
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