USER`S MANUAL DMR-6500
Contents
1. C 1 C p 3 of reading 5 C 9 F 4 F 1400 F 1 F Sensor Type K Thermocouple Diode Test Range Resolution Accuracy 0 3mA typical 1 mV 10 of reading 5 digits Open circuit voltage 1 5V dc typical Audible continuity Audible threshold Less than 1500 Test current lt 0 3mA Operating Instructions WARNING Risk of electrocution High voltage circuits both AC and DC are very dangerous and should be measured with great care 1 ALWAYS turn the function switch to the OFF position when the meter is not in use This meter has Auto OFF that automatically shuts the meter OFF if 15 minutes elapse between uses 2 If OL appears in the display during a measurement the value exceeds the range you have selected Change to a higher range NOTE On some low AC and DC voltage ranges with the test leads not con nected to a device the display may show a random changing reading This is normal and is caused by the high input sensitivity The reading will stabilize and give a proper measurement when connected to a circuit Autoranging Manual Range Selection When the meter is first turned on it automatically goes into Autoranging This automatically selects the best range for the measurements being made and is generally the best mode for most measurements For measurement situations requiring that a range be manually selected perform the following Press the RANGE key The AUTO disp2. For current measurements up to 10A AC set the function switch to the 140A position and insert the red test lead banana plug into the 10A jack 5 Press the MODE button until AC appears in the display 6 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 7 Touch the black test probe tip to the negative side of the circuit And touch the red test probe tip to the positive side of the circuit Apply power to the circuit 9 Read the current in the display 14 Resistance Measurements WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements Remove the batteries and unplug the line cords Set the function switch to the Q position 2 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive Q jack 3 Touch the test probe tips across the circuit or part under test It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading 4 Read the resistance in the display The display will indicate the proper decimal point value and symbol Continuity Check WARNING To avoid electric shock never measure continuity on circuits or wires that have voltage on them Set the function switch to the position 2 Insert the black lead ba
3. and completely before using the meter Lack of caution or poor safety practices can result in serious injury or death Always start with power off Set the function switch to the correct setting before making any measurements and do not change position of the func tion switch during measurements Do not use the meter if the meter or test leads look damaged or if there is doubt that the meter is not operating properly When using the test probes always keep fingers behind the finger guards Never touch the exposed probe tip Always consider circuits to be energized Never assume any equipment to be de energized Use caution when working above 35VDC or 25VAC RMS as these volt ages pose a shock hazard Never connect unit to AC or DC powered circuits when the function switch is set to resistance diode check or continuity ranges Always disconnect the power when performing resistance or diode tests Always turn off the power to the circuit under test before unsoldering or breaking the circuits Small amount of current can be dangerous Disconnect test leads before removing the batteries or the fuse Do not operate the unit unless the case is completely closed SAFETY INSTRUCTIONS This meter has been designed for safe use but must be operated with caution The rules listed below must be carefully followed for safe operation 1 NEVER apply voltage or current to the meter that exceeds the specified
4. plug into the negative COM jack and the red test lead banana plug into the positive V jack 4 Touch the test probe tips to the circuit under test Be sure to observe the correct polarity red lead to positive black lead to negative 5 Read the voltage in the display AC Voltage Measurements WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets As a result the reading may show 0 volts when the outlet actually has voltage on it Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present CAUTION Do not measure AC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter Set the function switch to the V position Press MODE if required so AC appears on the display Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack Touch the test probe tips to the circuit under test Read the voltage in the display 2 DC Current Measurements CAUTION Do not make current measurements on the 10A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to the meter and or the test leads Insert the black test lead banana plug into the negative COM jack 2 For current measurements up t
5. temperature Fuse Battery Dimensions Weight Enclosure Safety Approvals 4000 counts LCD display Automatic negative polarity indication 7 8MQ OL mark indication J js displayed if the battery voltage drops below operating voltage 2 times per second nominal Automatically shuts down after approx 15 minutes of inactivity 0 C to 50 C 32 F to 122 F at lt 70 relative humidity 20 C to 60 C 4 F to 140 F at lt 80 relative humidity 10A 250V 500mA 250V Fast blow 5x20mm One 9V NEDA 1604 battery 150 H x 70 W x 48 D mm Approx 255g Double molded This meter is UL and CUL approved and con forms to IEC61010 1 for Overvoltage Category CAT III 600V DC Voltage Range Resolution Accuracy 400 0mV 0 1mV 0 5 of reading 2 digits 4 000V imV 40 00V 10mV 1 2 of reading 2 digits 400 0V 100mV 600V 1V 1 5 of reading 2 digits AC Voltage Range Resolution Accuracy 400 0mV 0 1mV 1 5 of reading 15 digits 4 000V 1mV 1 2 of reading 3 digits 40 00V 10mV PRE 400 07 100mv 1 5 of reading 3 digits 600V 1V 2 0 of reading 4 digits DC Current Range Resolution Accuracy 400 0uA 0 1uA 1 0 of reading 3 digits 4000uA 1uA 40 00mA 10uA 1 5 of reading 3 digits 400 0mA 100uA 10A 10mA 2 5 of reading 5 digits AC Current Range Resolution Accuracy 4
6. 00 0uA O 1UA 1 5 of reading 5 digits 4000uA 1uA 40 00mA 10uA 1 8 of reading 5 digits 400 0mA 100uA 10A 10mA 3 0 of reading 7 digits Overload Protection 0 5A 250V and 10A 250V Fuse Note Accuracy is given at 18 C to 28 C 65 F to 83 F lt 70 RH a Dre Resistance Range Resolution Accuracy 400 00 0 10 1 2 of reading 4 digits 4 000kQ 10 1 0 of reading 2 digits 40 00kQ 100 400 0kQ 1000 1 2 of reading 2 digits 4 000MQ 1kQ 40 00MQ 10kQ 2 0 of reading 3 digits Capacitance Auto ranging Range Resolution Accuracy 4 000nF 1pF 5 0 of reading 50 digits 40 00nF 10pF 5 0 of reading 7 digits 400 0nF 0 1nF 4 000uF inf 3 0 of reading 5 digits 40 00uF 10nF 200 0uF 0 1uF 5 0 of reading 5 digits Frequency Auto ranging Range Resolution Accuracy 9 999Hz 0 001Hz 1 5 of reading 5 digits 99 99Hz 0 01Hz 999 9Hz 0 1Hz onus Lar 1 2 of reading 3 digits 99 99kHz 10Hz 999 9kHz 100Hz 9 999MHz 1kHz 1 5 of reading 4 digits Sensitivity gt 0 5V RMS while lt 1MHz Sensitivity gt 3V RMS while gt 1MHz Duty Cycle Range Resolution Accuracy 0 1 99 9 0 1 1 2 of reading 2 digits Pulse width gt 100us lt 100ms Frequency width 5Hz 150 kHz Sensitivity gt 0 5V RMS Temperature Range Resolution Accuracy 20 C 760
7. USER S MANUAL Multimeter Auto ranging Compact DMM DMR 6500 CIRCUIT TEST ELECTRONICS www circuittest com Introduction This meter measuresAC DC Voltage AC DC Current Resistance Capacitance Frequency Diode Test Continuity plus Thermocouple Temperature Proper use and care of this meter will provide many years of reliable service Safety WARNING CAUTION oO gt This symbol adjacent to another symbol terminal or operating device indicates that the operator must refer to an explana tion in the Operating Instructions to avoid personal injury or damage to the meter This WARNING symbol indicates a potentially hazardous situation which if not avoided could result in death or serious injury This CAUTION symbol indicates a potentially hazardous situ ation which if not avoided may result damage to the product This symbol advises the user that the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds in this case 500 VAC or VDC This symbol adjacent to one or more terminals identifies them as being associated with ranges that may be subjected to particularly hazardous voltages For maximum safety the meter and test leads should not be handled when these terminals are energized Double Insulation SAFETY INFORMATION Caution and proper guidelines must be followed for personal and product safety Read this instruction manual carefully
8. another measurement function Ta Maintenance Replacing the Battery WARNING To avoid electric shock disconnect the test leads from any source of voltage before removing the battery door 1 E will appear in the display when the battery drops below the operating voltage and requires replacing Turn off the meter and disconnect the test leads from the meter Remove the two screws securing the battery cover Replace the 9V battery observing the correct polarity Replace the cover and secure the two screws 2 3 4 5 WARNING To avoid electric shock do not operate your meter until the battery door is in place and fastened securely Replacing the Fuses WARNING To avoid electric shock disconnect the test leads from any source of voltage before removing the fuse cover Turn off the meter and disconnect both test leads from the meter 2 Remove the two screws securing the battery fuse cover and remove the battery 3 Remove the old fuse from its holder by gently pulling it out Replace with fuse of proper size and value 0 5A 250V fast blow for the 400mA range 10A 250V fast blow for the 10A range 5 Replace the battery and the cover and tighten the screws WARNING To avoid electric shock do not operate your meter until the fuse door is in place and fastened securely sa Limited Warranty Circuit Test Electronics warrants to the original purchaser that this pr
9. e negative COM jack and the red test lead banana plug into the positive Hz jack Touch the test probe tips to the circuit under test Read the frequency on the display Press the MODE button again to indicate on the display Read the of duty cycle on the display No dI p 16 Capacitance Measurements WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements Remove the batteries and unplug the line cords Set the function switch to the e position 2 Insert the black test lead banana plug into the negative jack COM and the red test lead banana plug into the positive jack 4e 3 Touch the test leads to the capacitor to be tested Temperature Measurements WARNING To avoid electric shock disconnect both test probes from any source of voltage before making a temperature measurement 1 Set the function switch to F or C position 2 Insert the type K thermocouple probe black test lead banana plug into the negative COM jack and the red test lead banana plug into the posi tive Temp jack 3 Touch the Temperature Probe head to the part whose temperature you wish to measure Keep the probes touching the part under test until the reading stabilizes about 30 seconds 4 Read the temperature in the display WARNING To avoid electric shock be sure the thermocouple has been removed before changing to
10. lay indicator will turn off 2 Press the RANGE key to step through the available ranges until you select the range you want 3 To exit Manual Ranging press and hold RANGE key for 2 seconds NOTE Manual ranging does not apply for Capacitance Frequency functions 10 MODE Button To select Diode Continuity DC AC Hz Duty HOLD Button The hold function freezes the reading in the display Press the HOLD key momentarily to activate or to exit the HOLD function RELATIVE Button The relative measurement feature allows you to make measurements relative to a stored reference value A reference voltage current etc can be stored and measurements made in comparison to that value The displayed value is the difference between the reference value and the measured value 1 Perform any measurement as described in the operating instructions 2 Press the RELATIVE button to store the reading in the display and the REL indicator will appear on the display 3 The display will now indicate the difference between the stored value and the measured value 4 Press the RELATIVE button to return to normal operation 11 DC Voltage Measurements CAUTION Do not measure DC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Set the function switch to the V position Press MODE if required so DC appears on the display Insert the black test lead banana
11. maximum Input Limits Function Maximum Input V DC or VAC 600V DC VAC uA mA DC AC 400mA DC AC 10A DC AC 30 seconds max every ere 15 minutes Frequency Resistance Capacitance Temperature Duty 250V DC AC rms Cycle Diode Continuity USE EXTREME CAUTION when working with high voltages 3 NEVER connect the meter leads across a voltage source while the function switch is in the current resistance or diode mode Doing so can damage the meter 4 ALWAYS discharge filter capacitors in power supplies and disconnect the power when making resistance or diode tests 5 ALWAYS turn off the power and disconnect the test leads before open ing the covers to replace the fuse or batteries 6 NEVER operate the meter unless the back cover and the battery and fuse covers are in place and fastened securely Controls and Jacks 1 4000 count LCD Display 2 Function switch r 10A positive input jack for D W 10A DC or AC Haas COM negative input jack wo Positive input jack MODE button Range button Data Hold button Relative button o DONO I A Symbols and Annunciators a Continuity Low Battery gt Diode HOLD Data Hold AUTO AutoRanging AC Alternating Current or Voltage DC Direct Current or Voltage Specifications Display Polarity Input Impedance Overrange Low battery indication Measurement rate Auto power off Operating Temperature Storage
12. nana plug into the negative jack COM and the red test lead banana plug into the positive jack Q 3 Press the MODE button until the symbol appears in the display Touch the test probe tips to the circuit or wire you wish to check 5 If the resistance is less than approximately 300 the audible signal will sound The display will also show the actual resistance 15 Diode Test WARNING To avoid electric shock do not test any diode that has voltage on it Set the function switch to gt position Press the MODE button until gt appears in the display 3 Insert the black test lead banana plug into the negative jack COM and the red test lead banana plug into the positive jack Q 4 Touch the test probe tips to the diode or semiconductor junction you wish to test Note the meter reading 5 Reverse the probe polarity by switching probe position Note this read ing 6 The diode or junction can be evaluated as follows A If one reading shows a value and the other reading shows OL the diode is good B If both readings show OL the device is open C If both readings are very small or 0 the device is shorted NOTE The value indicated in the display during the diode check is the forward voltage Frequency Duty Cycle Measurements 1 Set the rotary function switch to the Hz position 2 Press the MODE button to indicate Hz on the display 3 Insert the black lead banana plug into th
13. o 4000pA DC set the function switch to the pA position and insert the red test lead banana plug into the uA jack 3 For current measurements up to 400mA DC set the function switch to the mA range and insert the red test lead banana plug into the mA jack 4 For current measurements up to 10A DC set the function switch to the 140A position and insert the red test lead banana plug into the 10A jack Press the MODE button until DC appears in the display Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 7 Touch the black test probe tip to the negative side of the circuit Touch the red test probe tip to the positive side of the circuit Apply power to the circuit Read the current in the display 13 AC Current Measurements WARNING To avoid electric shock do not measure AC current on any circuit whose voltage exceeds 250V AC CAUTION Do not make current measurements on the 10A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to the meter and or the test leads Insert the black test lead banana plug into the negative COM jack 2 For current measurements up to 4000pA AC set the function switch to the pA position and insert the red test lead banana plug into the uA jack 3 For current measurements up to 400mA AC set the function switch to the mA range and insert the red test lead banana plug into the mA jack 4
14. oduct be free of defect in material or workmanship for a period of 2 years from the date of purchase Any product which has been subjected to misuse or accidental damage is excluded from the warranty Except as stated above Circuit Test Electronics makes no promises or warranties either expressed or implied including war ranties of merchantability or the fitness for any particular purpose M DMR 6500 07R13 19
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