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Item 64019

S

AFETY

Op
ERA

TION

M

AINTENANCE

S

ETU

p

Continuity Measurement

Test continuity between two 
points of a circuit.

WARNING!

 To prevent electric shock, turn 

off all power and fully discharge capacitors 
on the circuit under test before measuring.

1.  Plug black test lead into 

COM

 Jack.  

Plug red test lead into 

Input

 Jack.

2.  Turn the Rotary Switch 

to the 

 position. 

3.  Press 

FUNC

 until   is displayed. 

4.  Connect the test leads across 

the circuit to be measured.

5.  Read measured resistance on the 

Display. If the measured resistance 

is less than 50Ω, Meter will beep.

6.  When testing is complete, turn 

Rotary Switch to 

OFF

, remove 

Test Leads and store with Meter.

Note:

 If Test Leads are open or 

the resistance of the circuit is out 
of range, 

OL

 is displayed.

Diode Measurement

Test voltage drop in diodes.

WARNING!

 To prevent electric shock, turn 

off all power and fully discharge capacitors 
on the circuit under test before measuring.

1.  Plug black test lead into 

COM

 Jack.  

Plug red test lead into 

Input

 Jack.

2.  Turn the Rotary Switch 

to the 

 

position.

3.  Press 

FUNC 

until 

 is displayed.

4.  Connect red probe to diode’s anode 

and black probe to its cathode.

5.  Read measured forward-biased 

voltage drop on the Display.  

Note:

 If the test leads are reversed 

or open, 

OL

 is displayed.

6.  When testing is complete, turn 

Rotary Switch to 

OFF

, remove 

Test Leads and store with Meter.

Summary of Contents for DM1000

Page 1: ...rence 17i When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2017 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manua...

Page 2: ...to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided could result in minor or moderate injury A...

Page 3: ...f the Meter have it serviced before use f The battery cover is open 5 Power this Meter using only the battery ies referenced in the Specifications Chart 6 Use caution when working near voltages above 30 VAC rms 42 VAC peak or 60 VDC Voltages this high present a risk of electric shock 7 Disconnect the circuit s power before connecting the Meter in series when measuring current 8 Connect the common ...

Page 4: ...eter may vary depending on battery condition 24 Use the proper settings terminals techniques and range for the tests performed Start with the range stated in the instructions 25 Do not apply voltage to the Test Leads when the Multimeter is in the Ohms testing setting Damage can occur to the Meter 26 Do not switch between testing modes with the multimeter connected to a circuit 27 Do not use the me...

Page 5: ...5 of rdg 5D 10A 3 0 of rdg 5D Resistance Ranges 660Ω 6 6kΩ 66kΩ 660kΩ 6 6MΩ 66MΩ Resistance Accuracy 660Ω 6 6MΩ 0 8 of rdg 5D 66MΩ 1 5 of rdg 5D Capacitance Ranges 6 6nF 66nF 660nF 6 6μF 66μF 660μF 6 6mF 66mF Capacitance Accuracy 6 6nF 4 0 of rdg 5D 66nF 660μF 3 0 of rdg 3D 6 6mF 66mF 4 0 of rdg 5D Diode Forward DC Current 1mA Reverse DC Voltage 3 2V Continuity Meter beeps at 50Ω Frequency Hz Mode...

Page 6: ...ction at the beginning of this manual including all text under subheadings therein before set up or use of this product Functions Non Contact Voltage Sensor Non Contact Voltage Indicator Rotary Switch Function Button Backlight Button Relative Value Button Non Contact Voltage Button Hold Button Display Input Jack COM Jack Range Button MAX MIN Button 10A Jack 600mA Jack ...

Page 7: ...eld Auto Power Off AUTO Auto range mode Continuity Diode test REL Relative measurement mode MAX The maximum value is being measured MIN The minimum value is being measured Battery low Percent Duty cycle C F Celsius Fahrenheit Ω kΩ MΩ Ohms Kiloohms Megaohms Resistance nF μF mF Nanofarad Microfarad Millifarad Capacitance mV V Millivolts Volts Voltage A Amperes Current Hz kHz Hertz Kilohertz Frequenc...

Page 8: ...ng mode Note Relative measurement mode can only be used in manual range mode Note Relative measurement mode cannot be used in Hz mode Manual Range The Meter s default range is AUTO in voltage current resistance and capacitance modes To select manual range press RANGE Each press of the button increases the range Hold the RANGE button to return to auto range Maximum and Minimum Value Measurements 1 ...

Page 9: ...Switch to any position 2 Hold the NCV button and move the Non Contact Voltage Sensor close to the unshielded conductor If detected voltage is 110V AC Meter will beep and the Non Contact Voltage Indicator will flash WARNING Even if no indication is given voltage may still be present Do not rely solely on NCV detection to determine the presence of voltage Auto power Off If the Meter is not used for ...

Page 10: ...ary Switch to the position 3 Press FUNC button to choose between AC and DC voltage 4 Carefully touch exposed conductors with tips of probes 5 Read measured voltage on the Display For AC voltage frequency is shown at the top right Use the Lo Z switch position on Meter when readings are suspect ghost or stray voltages may be present or when testing for the presence of voltage Follow instructions for...

Page 11: ...t resistance up to 66M Ohms WARNING To prevent electric shock turn off all power and fully discharge capacitors on the circuit under test before measuring Note When measuring Ohms start with the lowest range if the resistance is unknown 1 Plug black test lead into COM Jack Plug red test lead into Input Jack 2 Turn the Rotary Switch to the position 3 Carefully touch exposed conductors with tips of ...

Page 12: ...eter will beep 6 When testing is complete turn Rotary Switch to OFF remove Test Leads and store with Meter Note If Test Leads are open or the resistance of the circuit is out of range OL is displayed Diode Measurement Test voltage drop in diodes WARNING To prevent electric shock turn off all power and fully discharge capacitors on the circuit under test before measuring 1 Plug black test lead into...

Page 13: ... in series with circuit under test Note When using manual range mode always start with the highest range if the amperage is unknown 1 Turn the Rotary Switch to the or position depending on the amperage of the conductor under test 2 Always start with the highest range if the amperage is unknown 3 Plug black test lead into COM Jack If amperage is 600mA plug red test lead into μAmA Jack If amperage i...

Page 14: ...Measurement Eliminate ghost voltages 1 Plug black Test Lead into black COM Jack Plug red Test Lead into Input Jack 2 Turn Rotary Switch to Lo Z position 3 Carefully touch exposed conductors with tips of probes 4 Read measurement 5 When testing is complete turn Rotary Switch to OFF remove Test Leads and store with Meter ...

Page 15: ...airs should be done by a qualified technician Battery Fuse Replacement If the sign appears on the Display the battery should be replaced 1 Remove Test Leads from the Meter 2 Turn the unit over 3 Replace battery a Remove screw on battery cover b Remove battery cover carefully c Pull batteries out of unit and replace with the same Note Do not reverse the polarity of the battey 4 Replace fuse a Remov...

Page 16: ... you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect we will either repa...

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