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

Item 64020

S

AFETY

Op
ERA

TION

M

AINTENANCE

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ETU

p

15.  People with pacemakers should 

consult their physician(s) before 
use.  Electromagnetic fields in close 
proximity to heart pacemaker could 
cause pacemaker interference 
or pacemaker failure.

16.  Do not test voltage on circuits 

higher than 600 volts.  

17.  Do not test current on circuits 

higher than 400A.

18.  Use as intended only.

19.  Prior to testing resistance, diodes, 

or continuity; disconnect all power 
to the circuit and discharge all 
high-voltage capacitors.

20.  Dress properly.  Protective, 

electrically nonconductive 
clothes and nonskid footwear are 
recommended when working.

21.  Wear ANSI-approved safety 

goggles during use.

22.  Only use accessories intended 

for use with this Meter.

23.  Performance of this Meter 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 Meter is in 
the ohms testing setting.  Damage 
can occur to the Meter.

26.  Do not switch between testing modes 

with the Meter connected to a circuit.

27.  Do not use the Meter at a setting 

marked as blank on the scale.

28.  Prior to testing capacitors, resistance, 

diodes, or continuity; disconnect all 
power to the circuit and discharge 
all high-voltage capacitors.

29.  Have the Meter calibrated by a 

qualified technician every year.  

30.  Do not disassemble Meter; take 

it to a qualified technician when 
service or repair is required.  

31.  The warnings, cautions, and 

instructions discussed in this 
instruction manual cannot cover all 
possible conditions and situations that 
may occur.  It must be understood 
by the operator that common sense 
and caution are factors which cannot 
be built into this product, but must 
be supplied by the operator.

 SAVE THESE INSTRUCTIONS.

Summary of Contents for 64020

Page 1: ...ence 17h 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...

Page 2: ...o 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 seri...

Page 3: ...on of 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 ab...

Page 4: ...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 Meter is...

Page 5: ...ent Accuracy 4A 2 5 of rdg 30D 40A 2 5 of rdg 5D 400A 1 8 of rdg 9D Resistance Ranges 400 4k 40k 400k 4M 40M Resistance Accuracy 400 1 2 of rdg 2D 4k 40k 400k 1 0 of rdg 2D 4M 1 2 of rdg 3D 40M 2 0 of...

Page 6: ...FETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Functions Clamp Trigger 400A CATIII 600V Current Clamp Workli...

Page 7: ...p Display HOLD Symbol Description A mA A Amps Current nF uF mF Farads Capacitance V mV Volts Voltage k M ohms Resistance Hz kHz Hertz Frequency Duty Cycle Low Battery DC Direct Current AC Alternating...

Page 8: ...nts See page 12 REL Button Show difference between two readings in AC Current and AC DC Voltage See page 9 Zero out Test Lead resistance to obtain accurate low resistance reading See page 11 Zero out...

Page 9: ...ve Test Leads before taking measurements with Current Clamp Note Amperage is always tested in series with circuit under test Note To measure 2 and 3 wire power cords use an AC Line Splitter not includ...

Page 10: ...eading Take second measurement reading will be difference between first and second reading Note If voltage is too high display will read OL 7 When testing is complete turn Rotary Switch to OFF remove...

Page 11: ...l beep continuously 6 When testing is complete turn Rotary Switch to OFF remove Test Leads and store with Meter Capacitance Measurement Measure capacitance up to 100 F WARNING To prevent electric shoc...

Page 12: ...played Note For low resistance measurements short Test Leads together If there is resistance present press REL button to zero out resistance for most accurate reading 4 Carefully touch exposed conduct...

Page 13: ...ge above 90V AC from distance of 10mm 1 Turn Rotary Switch to NCV position 2 Place NCV Sensor within 10mm of unshielded conductor 3 NCV light will come on and Meter will beep to indicate presence of v...

Page 14: ...with a dry lint free cloth Do not use solvents or abrasives 2 Remove batteries if not in use for long periods 3 Store unit in a dry location 4 Other than battery ies there are no replaceable parts on...

Page 15: ...all 1 888 866 5797 Item 64020 SAFETY OpERATION MAINTENANCE SETUp Calibration Have Meter calibrated by a qualified technician every year Record Serial Number Here Note If product has no serial number r...

Page 16: ...o the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take a...

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