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User Manual: Cen-Tech Cen-Tech-69096-Operating-Instructions-Manual-820212

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7 FUNCTION DIGITAL MULTIMETER

69096
OPERATING INSTRUCTIONS

Visit our Web site at http://www.harborfreight.com
REV 12a

Copyright© 2011 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.
For technical questions and replacement parts, please call 1-800-444-3353

Specifications
Frequency

45-450 Hz

DC Amps

Ranges: 200µA/2000µA/20mA/200mA, 10A
Accuracy

DC Voltage

(@200µA-200mA) 1.2%±2D; (@10A) 3%±2D
Ranges: 200mV/2000mV/20/200/1000V

Accuracy

AC Voltage

(@200mV) 0.5%±1D;
(@2000mV-200V) 1.0%±1D;
(@1000V) 1.0%±2D
Ranges: 200/750V

Accuracy
Resistance

(45-450 Hz) 1.2%±10D
Ranges: 200/2000/20K/200K/2000K Ohm

Accuracy

(@200-200K Ohm) 0.8%±2D;
(@2000K Ohm) 1.0%±2D;

Sampling Rate

2.5 times/Second

Overload Protection

Fast-Acting 500mA/250V Fuse

Operating Temperature

Range: 32° - 104° F

Display

1

Battery

One 9 V (included)

Weight

.45 lb.

Features

29-1/2″ Test Leads, Transistor (NPN and PNP) Testing Function,
Battery Testing Function, and Automatic Polarity and Zero Adjust

/2″ high 3-1/2-digit LCD

Save This Manual

You will need the manual for the safety warnings and
precautions, and operating and maintenance procedures.
Keep your invoice with this manual. Write the invoice number
on the inside of the front cover. Keep the manual and invoice
in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always
be followed to reduce the risk of personal injury and damage
to equipment.
Warnings continued on page 3.
SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 2

Read all instructions before using this tester!
1.
2.
3.

4.
5.
6.
7.

8.

9.
10.
11.

12.
13.

Avoid working alone. If an accident happens, an assistant can
bring help.
Keep work area clean. Cluttered areas invite injuries.
Avoid electrical shock. Use extreme caution when using this tool
near uninsulated conductors or bus bars. Prevent body contact with
grounded surfaces such as pipes, radiators, ranges, and cabinet
enclosures when testing voltages.
Avoid damaging meter. Use only as specified in this manual.
Observe work area conditions. Do not test voltages in damp or
wet locations. Don’t expose to rain. Keep work area well lit.
Keep children away. Children must never be allowed in the work
area. Do not let them handle machines, tools, or extension cords.
Store idle equipment. When not in use, tools must be stored in a
dry location to inhibit rust. Always lock up tools and keep out of reach
of children.
Dress properly. Do not wear loose clothing or jewelry as they can
be caught in moving parts. Protective, electrically nonconductive
clothes and nonskid footwear are recommended when working. Wear
restrictive hair covering to contain long hair.
Use eye protection. Always wear ANSI approved impact safety
goggles.
Do not overreach. Keep proper footing and balance at all times.
Do not reach over or across electrical cables or frames.
Maintain tools with care. Ensure multimeter has a fresh battery.
Inspect test leads periodically and, if damaged, have them repaired
by an authorized technician.
Stay alert. Watch what you are doing, use common sense. Do not
operate any tool when you are tired.
Check for damaged parts. Before using any tool, any part that
appears damaged should be carefully checked to determine that it
will operate properly and perform its intended function. Check for any
broken parts and any other condition that may affect proper operation.
Any part that is damaged should be properly repaired or replaced
by a qualified technician. Do not use the tool if any switch does not
operate properly.

SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 3

Replacement parts and accessories. When servicing, use only
identical replacement parts. Use of any other parts will void the
warranty. Only use accessories intended for use with this tool.
Approved accessories are available from Harbor Freight Tools.
16.
Do not operate tool if under the influence of alcohol or drugs.
Read warning labels on prescriptions to determine if your judgment
or reflexes are impaired while taking drugs. If there is any doubt, do
not operate the tool.
17.
We recommend that only a licensed electrician work on highvoltage or other potentially dangerous circuits.
Note: Performance of this tool may vary depending on condition of internal
battery.
Warning: 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.
Warning: 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.)
15.

Unpacking

When unpacking, make sure the following parts are included: Digital
Multimeter, and black and red Test Leads. If any parts are missing or broken, please
call Harbor Freight Tools at the number on the cover of this manual. If any part of
the machine is missing or broken, please call Harbor Freight Tools at the number
on the front cover as soon as possible.

Operation

WARNING: ELECTRICAL SHOCK CAN CAUSE DEATH OR
INJURY. AVOID TOUCHING EXPOSED CONDUCTORS
OF ELECTRICITY.
1.
2.
3.

Additional Multimeter Precautions

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.

SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 4

4.

5.

Be careful not
to apply voltage DC Volt
to the Test Leads Selection
Area
when they are
connected
Ohm
t o t h e C O M Selection
Area
(Bottom) and
VΩmA (Center)
Jacks and the Transistor
Multimeter is in /hFE Jack
an Ohms testing
setting. Damage
can occur to the multimeter
or the fuse may blow.
Do not switch between
testing modes with the
multimeter connected to a
circuit.

Control Layout
AC Volt Selection Area

Battery
Test
Selection
Area
DC AMP
Selection
Area
10A
Selection
Area/Jack
Transistor
Selection
Area

ON/OFF
Switch
Diode
Selection Area

COM Jack

Volt/Ohm/
mA Jack

AC Voltage Measurements

1.
2.
3.
4.

5.

Measure AC conductors carrying up to 750 VAC, 45-450 Hz.
Turn the Range Selector Switch to 750 ACV setting.
Always start with the highest range if the voltage is unknown.
Plug the red lead into the VΩmA (Center) Jack. Plug the black lead into
the COM (Bottom) Jack. Switch the Multimeter ON.
Carefully touch the exposed conductors with the tips of the probes to measure
the voltage (not amperes).
Read measurement.
If the voltage is less than 200 volts, set the Range Selector Switch to the
lower range.
When testing is complete, remove Test Leads and store with multimeter.

DC Voltage Measurements

1.
2.

Measure DC conductors carrying up to 1000 VDC.
Turn the Range Selector Switch to 1000 DCV setting.
Follow the directions above under “AC Voltage Measurements”, only use
the DC settings instead.

SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 5

DC Current Measurements

1.
2.
3.
Note:
4.

5.

Measure DC conductors carrying up to 10 amperes.
Turn the Range Selector Switch to the 10A position.
Always start with the highest range if the amperage is unknown.
Plug the red lead into the 10A (Top) Jack. Plug the black lead into the COM
(Bottom) Jack. Switch the Multimeter ON.
Carefully touch the exposed conductors with the tips of the probes to measure
the amperage.
Amperage is always tested in series with the circuit under test.
Read measurement.
If the reading is less than .2 AMPs, switch the red lead to the VΩmA (Center)
Jack and set the Range Selector Switch to the 200 mA setting.
When testing is complete, remove Test Leads and store with multimeter.

Resistance Measurements

Measure circuit resistance up to 2000K Ohms.
WARNING: NEVER measure resistance on a circuit with voltage running
through it.
1.
Turn the Range Selector Switch to the 200 mA position.
2.
Plug the red Test Lead into the VΩmA (Center) Jack. Plug the black Test
Lead into the Com (Bottom) Jack. Switch the Multimeter ON.
Short the Test Leads together. The meter should read “0” Ohms.
3.
Touch the exposed conductors with the tips of the Test Leads.

4.

Read measurement.
If the reading is “1”, set the Range Selector Switch to the next higher Ohm
(Ω) position.

Transistor (hFE) Measurements

1.
2.
3.

Test transistors to ensure proper function.
Turn the Range Selector Switch to the hFE position.
Switch the Multimeter ON.
Insert the transistor pins into the appropriate hFE jack (NPN or PNP)
according to the EBC (Emitter, Base, Collector) sequence.
The meter will show the approximate hFE value.

Diode Measurement

1.
2.
3.

Test the voltage drop in diodes.
Turn the Range Selector Switch to the Diode (
) position.
Plug the red Test Lead into the VΩmA (Center) Jack. Plug the black Test
Lead into the Com (Bottom) Jack. Switch the Multimeter ON.
Connect the red probe to the anode of the diode and the black to the cathode.

SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 6

4.

The approximate forward voltage drop of the diode will be displayed in
mV. If the connection is reversed only “1” will be shown.

Battery Charge Measurement

Test the amount of charge left in batteries.
NOTE: This setting is for testing the charge of small 9V or 1.5V batteries
only. Never use this setting to test automotive or lead-acid batteries.
The high current could cause damage to the meter and/or cause severe
personal injury. Use the appropriate DC Voltage setting to test the open
current voltage of such batteries instead.
1.
Turn the Range Selector Switch to the Battery (
) position.
2.
Plug the red Test Lead into the VΩmA (Center) Jack. Plug the black Test
Lead into the Com (Bottom) Jack. Switch the Multimeter ON.
3.
Connect the red probe to the positive terminal of the battery and the black
to the negative terminal.

4.

The battery amperage under a load of 370 mΩ will be displayed to a
resolution of .1mA.
5.
Normal amperage: For a standard 9V (6LR61) battery
= 25 mA
		
For a 1.5 V “AA” (LR6) battery
= 4 mA
1.
2.
3.
4.

Maintenance

Wipe unit with a slightly damp cloth using a light detergent. Do not use
solvents or abrasives.
Remove battery if not in use for long periods.
Store unit in a dry location.
Other than the battery and fuse, there are no replaceable parts on this unit.
Repairs should be done by a qualified technician.

Battery/Fuse Replacement

		To replace the battery or fuse:
1.
2.
3.
4.
5.
6.

Remove the Test Leads from the multimeter.
Turn the unit over.
Remove both screws using a cross head screwdriver.
Remove back cover.
Pull battery/fuse out of unit and replace with the same.
(9V battery or 500mA/250V fast-acting fuse)
Replace cover and retighten screws.

NOTE: No replacement parts are available for this tool.
SKU 69096

For replacement parts, please call 1-800-444-3353.

Page 7



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