Craftsman 82345 User Manual

Owner’s Manual

Manual Ranging MultiMeter

Model 82345

CAUTION: Read, understand and

follow Safety Rules and Operating
Instructions in this manual before
using this product.

© Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

www.craftsman.com 080806

! Safety
! Operation
! Maintenance
! Español

TABLE OF CONTENTS

Page
Warranty 3
Safety Instructions 4
Safety Symbols 5
Control and Jacks 6
Symbols and Annunciators 6
Specifications 7
Battery Installation 10
Operating Instructions 11

DC Voltage Measurements 11
AC Voltage Measurements 12
DC Current Measurements 13
Resistance Measurements 14
Temperature Measurements 14
Diode Test 15
Continuity Test 15
Battery Test 16
Data Hold 16

Maintenance 17

Replacing the Battery 18

Replacing the Fuse 18
Troubleshooting 19
Service and Parts 19

2

ONE YEAR FULL WARRANTY

ONE YEAR FULL WARRANTY ON CRAFTSMAN MULTIMETER
If this CRAFTSMAN Multimeter fails to give complete satisfaction within
one year from the date of purchase, RETURN IT TO THE NEAREST
SEARS STORE OR OTHER CRAFTSMAN OUTLET IN THE UNITED
STATES, and Sears will replace it, free of charge.
This warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.
Sears, Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179

For Customer Assistance Call 9am - 5pm (ET)
Monday through Friday 1-888-326-1006

WARNING: USE EXTREME CAUTION IN THE USE OF THIS
DEVICE. Improper use of this device can result in injury or

death. Follow all safeguards suggested in this manual in
addition to the normal safety precautions used in working with
electrical circuits. DO NOT service this device if you are not
qualified to do so.

3

SAFETY INSTRUCTIONS

This meter has been designed for safe use, but must be

operated with caution. The rules listed below must be carefully

followed for safe operation.

1. NEVER apply voltage or current to the meter that exceeds the specified

maximum:

Input Protection Limits

Function Maximum Input

V DC or V AC 600V AC and DC

mA DC 200mA DC

A DC 10A DC (for 15 seconds max.

Resistance, Diode Test,
Continuity

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the "COM" input jack

exceeds 600V above earth ground.

4. NEVER connect the meter leads across a voltage source while the

function switch is in the current, resistance, or diode mode. Doing so can
damage the meter.

5. ALWAYS discharge filter capacitors in power supplies and disconnect

the power when making resistance or diode tests.

6. ALWAYS turn off power and disconnect test leads before opening the

covers to replace the fuse or battery.

7. NEVER operate the meter unless the back cover is in place and fastened

securely.

8. If the equipment is used in a manner not specified by the manufacturer,

the protection provided by the equipment may be impaired.

every 15 minutes)

500V DC/AC

4

SAFETY SYMBOLS

This symbol adjacent to another symbol,
terminal or operating device indicates that
the operator must refer to an explanation in
the Operating Instructions to avoid personal
injury or damage to the meter.

WARNING

CAUTION

MAX
600V

This WARNING symbol indicates a
potentially hazardous situation, which if not
avoided, could result in death or serious
injury.

This CAUTION symbol indicates a
potentially hazardous situation, which if not
avoided, may result damage to the product.

This symbol advises the user that the
terminal(s) so marked must not be
connected to a circuit point at which the
voltage with respect to earth ground
exceeds 600V.

This symbol adjacent to one or more
terminals identifies them as being
associated with ranges that may, in normal
use, be subjected to particularly hazardous
voltages. For maximum safety, the meter
and its test leads should not be handled
when these terminals are energized.

This symbol indicates that a device is
protected throughout by double insulation or
reinforced insulation.

5

CONTROLS AND JACKS

1. LCD Display

2. Hold push-button

3. Rotary function dial

4. Test lead jack for voltage,

milli-amp, resistance and
temperature

5. Test lead jack for amps

6. COM test lead jack

Note: Tilt stand and battery

access is on the rear
of unit.

1

2

3

4

5

6

SYMBOLS AND ANNUNCIATORS

AC (voltage)

DC (direct current or voltage)

•))) Continuity and Diode test

mV, V millivolt, volt (voltage)

!! k!!"M!" ohm, kilohm, megohm (resistance)

mA, A milliamp, Amp (current)

º

F, ºC Degrees Fahrenheit, Centigrade (temperature)

º

Low battery

H Display hold

6

SPECIFICATIONS

Function Range Accuracy

DC Voltage
(V DC)

(V AC)
(40 - 400Hz)

(A DC)

Resistance

Temp "F

Temp "C

(probe accuracy not included)

200.0mV

2.000V

20.00V

200.0V

600V !(0.8% reading + 2 digits)

200.0V AC Voltage

600V

200.0mA !(1.5% reading + 2 digits) DC Current

10.00A !(3.0% reading + 5 digits)

200.0! !(0.8% reading + 4 digits)

2.000k!

20.00k!

200.0k!

20.00M! !(3.0% reading + 3 digits)

-4 to 59°F !(2.5% reading + 19 digits)

60 to 750°F !(1.0% reading + 9 digits)

751 to 1400°F

-20 to 16"C !(2.5% reading + 10 digits)

17 to 400"C !(1.0% reading + 5 digits)

400 to 750"C !(2.5% reading + 10 digits)

!(0.5% reading + 2 digits)

!(1.2% reading + 10 digits)

!(0.8% reading + 2 digits)

!(2.5% reading + 19 digits)

7

SPECIFICATIONS

NOTES:

Accuracy specifications consist of two elements:

• (% reading) – This is the accuracy of the measurement

circuit.

• (+ digits) – This is the accuracy of the analog to digital

Accuracy is stated at 65

75% RH.

Diode Test Test current of 1mA maximum, open

Continuity Check Audible signal will sound if the

Temperature sensor Requires type K thermocouple
Input Impedance 10M! (VDC) and 4.5M! (VAC)
Display 1999 count LCD
Overrange “1 or -1” is displayed
Polarity Automatic (no indication for positive

Measurement Rate 3 times per second, nominal
Low Battery “ ” is displayed if battery voltage

Battery Requires one 9V battery (NEDA

Fuses mA range; 250mA/250V fast blow
10A range, no protection

converter.

o

F to 83oF (18oC to 28oC) and less than

circuit voltage 2.8V DC typical

resistance is less than approximately
<40! " 5!

polarity); Minus (-) sign for negative
polarity.

drops below operating voltage

1604 or equivalent)

8

SPECIFICATIONS

Operating Temp 32oF to 104oF (0oC to 40oC)
Storage Temp -4
Relative Humidity Maximum relative humidity 80% for

Operating Altitude 7000ft (2000 meters) maximum.
Weight 5.4 oz. (153g).
Size 5.43” x 2.83” x 1.5” (138mm x 72mm x

Approvals UL, CE
Safety This meter is intended for indoor use

o

F to 140oF (-20oC to 60oC)

temperatures up to 31°C decreasing
linearly to 50% relative humidity at 40°C.

38mm)

and protected, against the users, by
double insulation per EN61010-1 and
IEC61010-1 2nd Edition (2001) to CAT II
600V; Pollution Degree 2. The meter
also meets UL 61010-1, Second Edition
(2004), CAN/CSA C22.2 No. 61010-1,
Second Edition (2004), and UL 61010B­2-031, First Edition (2003)

9

BATTERY INSTALLATION

WARNING: To avoid electric shock, disconnect the test

leads from any source of voltage before removing the
battery/fuse cover.

1. Disconnect the test leads from the meter.

2. Remove the rubber holster (if in place).

3. Remove the two screws securing the rear cover using a

Phillips head screwdriver.

4. Lift the cover off and replace the battery observing the correct

polarity.

5. Insert the new battery into the battery holder.

Replace the rear cover and secure with the screws.
WARNING: To avoid electric shock, do not operate the meter
until the battery cover is in place and fastened securely.

NOTE: If your meter does not work properly, check the fuses and
battery to make sure that they are still good and that they are
properly inserted.

10

OPERATING INSTRUCTIONS

WARNING: Risk of electrocution. High-voltage circuits, both

AC and DC, are very dangerous and should be measured with
great care.

1. ALWAYS turn the function switch to the OFF position when

the meter is not in use.

2. Press the HOLD button to freeze a displayed reading

NOTE: On some low AC and DC voltage ranges, with the test

leads not connected to a device, the display may show a

random, changing reading. This is normal and is caused by

the high-input sensitivity. The reading will stabilize and give a

proper measurement when connected to a circuit.

DC VOLTAGE MEASURE MENTS

CAUTION: Do not measure DC voltages if a motor on the

circuit is being switched ON or OFF. Large voltage surges
may occur that can damage the meter.

1. Set the function switch to the highest V DC

position.

2. Insert the black test lead banana plug into the

negative (COM) jack.
Insert the red test lead banana plug into the
positive (V) jack.

3. Touch the black test probe tip to the negative

side of the circuit.
Touch the red test probe tip to the positive
side of the circuit.

4. Read the voltage in the display. Reset the function switch to

successively lower V DC positions to obtain a higher
resolution reading. The display will indicate the proper
decimal point and value. If the polarity is reversed, the
display will show (-) minus before the value.

11

AC VOLTAGE MEASURE MENTS

WARNING: Risk of Electrocution. The probe tips may not

be long enough to contact the live parts inside some 240V
outlets for appliances because the contacts are recessed
deep in the outlets. As a result, the reading may show 0 volts
when the outlet actually has voltage on it. Make sure the
probe tips are touching the metal contacts inside the outlet
before assuming that no voltage is present.

CAUTION: Do not measure AC voltages if a motor on the
circuit is being switched ON or OFF. Large voltage surges
may occur that can damage the meter.

1. Set the function switch to the highest V AC

position.

2. Insert the black test lead banana plug into

the negative (COM) jack.
Insert red test lead banana plug into the
positive (V) jack.

3. Touch the black test probe tip to the

negative side of the circuit.
Touch the red test probe tip to the positive
side of the circuit.

4. Read the voltage in the display. Reset the function switch to

successively lower V AC positions to obtain a higher
resolution reading. The display will indicate the proper
decimal point and value.

12

DC CURRENT MEASURE MENTS

CAUTION: Do not make current measurements on the 10A

scale for longer than 30 seconds. Exceeding 30 seconds
may cause damage to the meter and/or the test leads.

1. Insert the black test lead banana plug into

the negative (COM) jack.

2. For current measurements up to 200mA DC,

set the function switch to the 200mA DC
position and insert the red test lead banana
plug into the (mA) jack.

3. For current measurements up to 10A DC, set

the function switch to the 10A range and
insert the red test lead banana plug into the
(10A) jack.

4. Remove power from the circuit under test,

then open up the circuit at the point where
you wish to measure current.

5. Touch the black test probe tip to the

negative side of the circuit.
Touch the red test probe tip to the positive
side of the circuit.

6. Apply power to the circuit.

7. Read the current in the display. The display

will indicate the proper decimal point and value.

13

RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the

unit under test and discharge all capacitors before taking any
resistance measurements. Remove the batteries and unplug
the line cords.

1. Set the function switch to the highest !!

position.

2. Insert the black test lead banana plug into

the negative (COM) jack
Insert the red test lead banana plug into the
positive ! jack.

3. Touch the test probe tips across the circuit

or part under test. It is best to disconnect
one side of the part under test so the rest of
the circuit will not interfere with the
resistance reading.

4. Read the resistance in the display and then set the function

switch to the lowest ! position that is greater than the actual
or any anticipated resistance. The display will indicate the
proper decimal point and value.

TEMPERATURE MEASUREMENTS

WARNING: To avoid electric shock, disconnect test leads

from any source of voltage before making a temperature
measurement. Be sure that the thermocouple has been
removed before changing to any other measurement function.

1. Insert the type K thermocouple probe

into the V/! /mA Temp and COM jacks.

2. Turn the rotary switch to the

o

F or oC

position.

3. Read the temperature on the display.

14

DIODE TEST

1. Insert the black test lead banana plug into

the negative COM jack and the red test
lead banana plug into the positive diode
jack.

2. Turn the function switch to the / •)))

position.

3. Touch the test probes to the diode under

test. Forward voltage will indicate 0.4V to

0.7V. Reverse voltage will indicate “1”.
Shorted devices will indicate near 0mV. Shorted devices will
indicate near 0mV and an open device will indicate “1” in
both polarities.

CONTINUITY TEST

1. Insert the black test lead banana plug into

the negative COM jack and the red test lead

banana plug into the positive V/! /mA jack.

Observe polarity.

2. Turn the rotary switch to the •))) position.

3. Touch the test probes to the circuit or device

under test. If the resistance is less than

approximately 40! the buzzer will sound.

15

BATTERY TEST

1. Insert the black test lead banana plug into

the negative COM jack and the red test
lead banana plug into the positive V jack.

2. Select the 1.5V or 9V BA T position using

the function switch.

3. Connect the red test lead to the positive

side of the 1.5V or 9V battery and the black
test lead to the negative side of the 1.5V or
9V battery.

4. Read the voltage in the display.

Good Weak Bad

9V battery: >8.2V 7.2 to 8.2V <7.2V

1.5V battery: >1.35V 1.22 to 1.35V <1.22V

DATA HOLD

Press the Hold button to freeze the reading in the display. “H”

will appear in the LCD. Press the key again to release the

display.

16

MAINTENANCE

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the back cover or
the battery or fuse cover.

WARNING: To avoid electric shock, do not operate your
meter until the battery and fuse cover are in place and
fastened securely.

This MultiMeter is designed to provide years of dependable
service, if the following care instructions are performed:

1. KEEP THE METER DRY . If it gets wet, wipe it off.

2. USE AND STORE THE METER IN NOR MAL

TEMPERATURES. Temperature extremes can shorten the
life of the electronic parts and distort or melt plastic parts.

3. HANDLE THE METER GEN TLY AND CARE FULLY.

Dropping it can damage the electronic parts or the case.

4. KEEP THE METER CL EAN. Wipe the case occasionally

with a damp cloth. DO NOT use chemicals, cleaning
solvents, or detergents.

5. USE ONLY FRESH BAT TERIES OF THE RECOMMENDED

SIZE AND TYPE. Remove old or weak batteries so they do
not leak and damage the unit.

6. IF THE METER IS TO BE STORED FOR A LONG PERIOD

OF TIME, the batteries should be removed to prevent
damage to the unit.

17

REPLACING THE BATT ERY

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the battery cover.

1. When the battery become exhausted or drop below the

operating voltage, “ ” will appear in the lower left corner of
the LCD display. The battery should be replaced.

2. Follow instructions for installing battery. See the Battery

Installation section of this manual.

3. Dispose of the old batteries properly.

WARNING: To avoid electric shock, do not operate your
meter until the battery cover is in place and fastened securely.

REPLACING THE FUSE

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the fuse cover.

1. Disconnect the test leads from the meter and any item under

test.

2. Remove the protective rubber holster.

3. Remove the two screws securing the rear cover using a

Phillips head screwdriver.

4. Remove the old fuse from its holder by gently pulling it out.

5. Install the new fuse into the holder.

6. Always use a fuse of the proper size and value

(250mA/250V) fast blow.

7. Replace the rear cover and secure with the screws.

WARNING: To avoid electric shock, do not operate your
meter until the fuse cover is in place and fastened securely.

UL LISTED

The UL mark does not indicate that this product has been
evaluated for the accuracy of its readings.

18

TROUBLESHOOTING

There may be times when your meter does not operate properly.
Here are some common problems that you may have and some
easy solutions to them.

Meter Does Not Operate:

1. Always read all the instructions in this manual before use.

2. Check to be sure the battery is properly installed.

3. Check to be sure the battery is good.

4. If the battery is good and the meter still does not operate,

check to be sure that both ends of the fuse are properly

installed.

If You Do Not Understand How the Meter Works:

1. Purchase the instructional book Multitesters and Their Use for

Electrical Testing (Item No. 82303) at your local Sears store.

2. Call our Customer Service Line 1-888-326-1006.

SERVICE AND PARTS

Item Number Description

82374 Fuse kit
93894 9V battery
82378 Set of black and red Test Leads
82345-CS Rear cover screws
82377 Temperature probe

19