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For technical questions, please call 1-888-866-5797.

Item 64021

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continuity Measurement

Test continuity between two points in a circuit.

WarninG!  to prevent electric shock, 
turn off all power and fully 
discharge capacitors in the circuit 
under test before measuring.

1.  Plug black test lead into 

cOM

 Jack.  

Plug red test lead into  

V

Hz

 

input

 Jack.

2.  Turn the Rotary Switch to 

the 

 position.

3.  Press 

Blue

 Button 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 10Ω, 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 is out of range, 

OL

 is displayed.   

The buzzer does not sound if the 
resistance is greater than 100

Ω

.

Diode Measurement

Test voltage drop in diodes.

WarninG!

 

 to prevent electric shock, 

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

1.  Plug black test lead into 

cOM

 Jack.  

Plug red test lead into  

V

Hz

 

input

 Jack.

2.  Turn the Rotary Switch to 

the 

 position.

3.  Press 

Blue 

Button until 

 is displayed.

4.  Connect red probe to diode’s anode 

and black probe to the cathode.

5.  Read measured forward-biased 

voltage drop on the Display.

note:

  In a circuit, a good diode will produce 

a forward voltage drop of 0.5V to 0.8V.

note:

  

OL

 is displayed if the Test Leads 

are reversed, the diode is open, or 
the measurement is out of range.

6.  When testing is complete, turn 

Rotary Switch to 

OFF

, remove 

Test Leads and store with Meter.

Summary of Contents for 64021

Page 1: ...ence 18k 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 2018 by Harbor Freight Tools All...

Page 2: ...sed to alert you 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 resul...

Page 3: ...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 3...

Page 4: ...ter 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...

Page 5: ...nt Accuracy 600 A 6000 A 1 2 of rdg 5D 60mA 600mA 1 5 of rdg 5D 6A 10A 2 0 of rdg 5D Resistance Ranges 600 6k 60k 600k 6M 60M Resistance Accuracy 600 1 2 of rdg 2D 6k 600k 1 0 of rdg 2D 6M 1 2 of rdg...

Page 6: ...ing of this manual including all text under subheadings therein before set up or use of this product Functions Milli Micro amp temperature input Jack common input Jack capacitance Volts Ohms Frequency...

Page 7: ...selection 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...

Page 8: ...aX Min Button The MaX Min Button allows you to record temporarily store and view signal events as you monitor them You may record while in any range or mode except Hz frequency duty cycle 1 Press the...

Page 9: ...ote The Hold mode will not capture unstable or noisy readings 4 To turn on the Display s backlight hold down the HOLD LiGHt Button for about 2 seconds 5 The backlight will automatically turn off after...

Page 10: ...Plug red test lead into V Hz input Jack 2 Turn Rotary Switch to the V Hz or mV Hz position as appropriate 3 Press Blue Button to choose AC or DC voltage 4 Carefully touch exposed conductors with tips...

Page 11: ...modes resistance Measurement Measure resistance up to 60M Ohms WarninG to prevent electric shock turn off all power and fully discharge capacitors in the circuit under test before measuring note When...

Page 12: ...store with Meter note If Test Leads are open or the resistance is out of range OL is displayed The buzzer does not sound if the resistance is greater than 100 Diode Measurement Test voltage drop in di...

Page 13: ...fore measuring 1 Plug black test lead into cOM Jack Plug red test lead into V Hz input Jack 2 Turn the Rotary Switch to the position 3 Press Blue Button until nF is displayed 4 Press the rEL button to...

Page 14: ...he circuit and allow capacitors to discharge 4 Press Blue Button to select AC or DC current The Meter default is DC current measurement 5 Break the circuit and connect the Test Leads in series with th...

Page 15: ...cement If the sign appears on the Display the battery should be replaced 1 Remove Test Leads from the Meter 2 Power off Meter and turn it over 3 Remove screw s Remove tilt stand and battery cover 4 Re...

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...

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