Harbor Freight Tools 95670 Product manual
3-1/2 Digit LCD Multimeter with
Tachometer Kit
Item 95670
INSTRUCTIONS AND PRECAUTIONS
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Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
When unpacking, make sure that the product is intact and undamaged.
If any parts are missing or broken, please call
1-800-444-3353 as soon as possible.
Copyright© 2008 by Harbor Freight Tools®. All rights reserved. No portion of this document
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 document may not be drawn
proportionally. Due to continuing improvements, actual product may differ slightly from the
product described herein. Tools required for assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
Email our technical support at: tech@harborfreight.com
Manual Revised 11h
Specications
Electrical
Requirements
Fuse F250mA L 250V
Display LCD 3.5 digits (to 1999)
V~ Testing
Frequency
Accuracy
One 9V battery
45 to 450 Hz
See individual test
operating sections
CAUTION, used with the safety
alert symbol, indicates a hazardous
situation which, if not avoided, could
result in minor or moderate injury.
NOTICE is used to address practices
not related to personal injury.
Save This Manual
Keep this manual for the safety warnings
and precautions, assembly, operating,
inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near
the assembly diagram (or month and year
of purchase if product has no number).
Keep this manual and the receipt in a
safe and dry place for future reference.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling, and all other
information provided with this product:
This is the safety alert symbol. It is
used to alert you to potential
personal injury hazards. Obey all
safety messages that follow this symbol to
avoid possible injury or death.
DANGER indicates a hazardous
situation which, if not avoided, will
result in death or serious injury.
CAUTION, without the safety alert
symbol, is used to address practices
not related to personal injury.
General Safety Warnings
WARNING Read all safety
warnings and instructions.
Failure to follow the warnings and
instructions may result in electric
shock, re and/or serious injury.
Save all warnings
and instructions
for future reference.
1. Electrical shock can cause death
or injury! NEVER TOUCH exposed
conductors of electricity.
2. Inspect the Multimeter/
Tachometer before use. In
addition to a general inspection,
carefully check the following:
a. Pay special attention to the
insulation protecting the connectors.
b. Check the leads for exposed metal,
damaged insulation, and continuity.
c. Replace damaged test lead
immediately, before use.
WARNING indicates a hazardous
situation which, if not avoided, could
result in death or serious injury.
Page 2 For technical questions, please call 1-800-444-3353. SKU 95670
3. Do not use the Multimeter/
Tachometer if:
a. The test lead is damaged
in any way.
b. The battery is low.
c. Near any explosive
gasses or fumes.
d. Any abnormal operation is
detected.
(If in doubt about the condition
of the meter, have it serviced.)
e. The battery cover is open.
4. This meter should be powered
only by a single, correctly
installed 9V battery.
5. Use caution when working near
voltages above 30V RMS, 42V
peak, or 60V DC. Voltages this high
present a risk of electric shock.
6. Disconnect the circuit’s power
before connecting the meter in
series (when measuring current).
7. Connect the common (COM) test
lead rst and disconnect last.
8. Hold the probes with
ngers behind guards.
9. Avoid electrical shock. Use
extreme caution when working
near uninsulated conductors or bus
bars. Prevent body contact with
grounded surfaces such as pipes,
radiators, ranges, and cabinet
enclosures when testing voltages.
10. Do not apply more than the rated
voltage, as marked on the meter,
between terminals or between
any terminal and earth ground.
11. Observe work area conditions. Do
not test voltages in damp or wet
locations. Don’t expose to rain.
Keep work area clean and well lit.
12. Keep children away. Children must
never be allowed in the work area.
13. Stay alert. Watch what you
are doing, use common
sense. Do not operate any
meter when you are tired.
14. Do not operate Multimeter/
Tachometer if under the inuence
of alcohol or drugs. Read
warning labels on prescriptions
to determine if your judgment
or reexes are impaired while
taking drugs. If there is any doubt,
do not operate the meter.
15. Due to the danger inherent in such
work, only a licensed electrician
should work on high-voltage or other
potentially dangerous circuits.
16. Do not test voltage on circuits higher
than 750 volts AC or 1000 volts DC.
This type of testing should only be
done by a qualied electrician.
17. Do not test current on
circuits higher than 10 A.
18. Store idle equipment. When not
in use, meters must be stored in a
dry location to decrease exposure
to moisture. Lock up meters and
keep out of reach of children.
19. Dress properly. Protective,
electrically nonconductive
clothes and nonskid footwear are
recommended when working.
20. Wear ANSI-approved
impact safety goggles.
Page 3For technical questions, please call 1-800-444-3353.SKU 95670
21. Only use accessories intended
for use with this meter.
22. Avoid damaging Multimeter/
Tachometer. Use only as
specied in this manual.
23. Prior to testing, resistance, diodes,
or continuity; disconnect all power
to the circuit and discharge all
high-voltage capacitors.
24. Before use, verify the Multimeter/
Tachometer’s operation by
measuring a known voltage.
25. Use the proper settings, terminals,
techniques, and range for the tests
performed. Always start with the
range stated in the instructions.
26. Do not apply voltage to the Test Leads
when the Multimeter/Tachometer is in
the Ohms testing setting. Damage can
occur to the Multimeter/Tachometer.
27. Do not switch between testing
modes with the Multimeter/
Tachometer connected to a circuit.
28. Never attempt to use the meter
at a setting combination marked
as blank on the scale.
29. Prior to testing capacitors, resistance,
diodes, or continuity; disconnect all
power to the circuit and discharge
all high-voltage capacitors.
31. Use the proper settings, terminals,
techniques, and range for the tests
performed. Always start with the
range stated in the instructions.
32. Have the Multimeter/Tachometer
calibrated by a qualied technician
every year. A Multimeter/Tachometer
that is not calibrated yearly will
not yield accurate results.
33. This product contains or produces
chemicals, including lead, known
to the State of California to cause
cancer and birth defects (or other
reproductive harm). (California Health
& Safety Code § 25249.5, et seq.)
34. WARNING: Handling the cords on
this product will expose you to lead,
a chemical known to the State of
California to cause cancer, and birth
defects or other reproductive harm.
Wash hands after handling.
(California Health & Safety
Code § 25249.5, et seq.)
35. The warnings, precautions, 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.
30. Check fuse before testing current.
SAVE THESE
INSTRUCTIONS.
Page 4 For technical questions, please call 1-800-444-3353. SKU 95670
Operating Instructions
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning
of this manual including
all text under subheadings
therein before set up or
use of this product.
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION: ELECTRICAL
SHOCK CAN CAUSE DEATH OR
INJURY. AVOID TOUCHING EXPOSED
CONDUCTORS OF ELECTRICITY.
Disconnect the Test Leads from
all live circuits before performing
any inspection, maintenance,
or cleaning procedures.
Do not use damaged equipment.
If abnormal noise or vibration
occurs, have the problem
corrected before further use.
Do not test voltage on AC circuits
higher than 750 volts.
Do not test voltage on DC circuits
higher than 1000 volts.
Do not test current on circuits
higher than 10 amps.
Do not apply voltage to the Test
Leads when they are connected to
the COM and Jacks and
the Multimeter/Tachometer is in
an Ohms testing setting. Damage
can occur to the Multimeter/
Tachometer or the fuse may blow.
Do not switch between testing
modes with the Multimeter/
Tachometer connected to a circuit.
Note: This unit is equipped with an
automatic shut off feature to extend the life
of the battery. If the Function/Range Switch
has not been operated for 15 minutes, the
power turns off. To turn the Meter back on,
rotate the Function/Range Switch or press
the Power Button. Check that the power
is on before each test/measurement.
Installing Battery
Before rst use or when the “Battery
Low” symbol ( ) appears on
the LCD, the battery needs to be
replaced. To replace the battery:
1. Turn off the Power and
disconnect Test Leads.
2. Remove the rubber casing
from the back of the unit.
3. Unthread the two screws on
the back of the Multimeter and
remove the back cover.
4. Install a 9V battery, being
careful to position the battery
with the correct polarity.
5. Replace the cover and
secure with the screws.
6. Replace the rubber casing.
Note: Performance of this meter may
vary depending on battery condition.
Work Piece and Work
Area Set Up
1. Designate a work area that is clean
and well-lit. The work area must
not allow access by children or pets
to prevent distraction and injury.
2. There must not be objects, such
as utility lines, nearby that will
present a hazard while working.
Page 5For technical questions, please call 1-800-444-3353.SKU 95670
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