Owner's Manual

True RMS

Multimeter

Model No.

82003

CAUTION: Read, understand and follow Safety Rules and Operating

Instructions in this manual before using this product.

 Safety

 Operation

 Maintenance

 Español

© Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. www.craftsman.com 042508

TABLE OF CONTENTS

Warranty

Safety Instructions

Safety Symbols

Control and Jacks

Symbols and Annunciators

Specifications

Battery Installation

Operating Instructions

DC Voltage Measurements

AC Voltage Measurements

DC Current Measurements

AC Current Measurements

Resistance Measurements

Continuity Check

Diode Test

Capacitance Measurements

Frequency (Duty Cycle) Measurements

Temperature Measurements

Autoranging/Manual range selection

Relative Mode

Display Backlight

Hold

Auto Power Off

Low Battery Indication

Battery Replacement

Fuse Replacement

Service and Parts

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ONE YEAR FULL WARRANTY

CRAFTSMAN PROFESSIONAL ONE YEAR FULL

WARRANTY. If this product fails due to a defect in materials or workmanship within one year from the date of purchase,

RETURN IT TO ANY SEARS STORE OR OTHER

CRAFTSMAN OUTLET IN THE UNITED STATES for free replacement. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Sears, Roebuck and Co., 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.

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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 Limits

V DC or V AC mA AC/DC

A AC/DC

1000VDC/AC rms

400mA AC/DC

10A AC/DC (20A for 30 seconds max every 15 minutes)

Resistance, Diode Test,

Continuity, Capacitance,

Frequency, Temperature

1000VDC/AC rms

2. USE EXTREME CAUTION when working with high voltages

3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds 1000V above earth ground

4. DO NOT measure current of circuits whose voltage is greater than 600V above earth ground

5. NEVER connect the meter leads across a voltage source while the function switch is in the resistance or diode mode.

Doing so can damage the meter

6. ALWAYS turn off the power and disconnect the test leads before opening the cover to replace the fuse or battery

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

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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

1000V

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 (in this case)

1000 VAC or VDC.

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.

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CONTROLS AND JACKS

1. 4,000 count LCD display

3. Hz and % button

6. mA, µA and 10A input jacks

7. COM input jack

10. REL button

11. HOLD button

Note: Tilt stand and battery compartment are on rear of unit.

SYMBOLS AND ANNUNCIATORS

•))) Continuity

Diode test

Battery status n nano

(10 -6

) (capacitance) 

) (amps) m milli

A Amps

) (ohms)

(capacitance)

6 ) (ohms)

 Ohms

Hz Hertz V Volts

% Percent (duty ratio) REL Relative

DC

ºF

Direct current

Degrees Fahrenheit

HOLD Display hold

ºC Degrees Centigrade

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SPECIFICATIONS

Function Range Resolution

DC Voltage

Accuracy

400mV 0.1mV (0.5% reading + 2 digits)

4V 0.001V

40V 0.01V (1.2% reading + 2 digits)

AC Voltage

400V 0.1V

1000V 1V

40V 0.01V

400V 0.1V

(1.5% reading + 2 digits)

400mV 0.1mV (2.0% reading + 10 digits)

4V 0.001V

(2.0% reading + 5 digits)

DC Current

AC Current

1000V 1V

400 A 0.1A

4000 A 1A

40mA 0.01mA

(2.5% reading + 5 digits)

(1.0% reading + 3 digits)

400 A 0.1A

4000 A 1A

(1.5% reading + 3 digits)

400mA 0.1mA

10A 0.01A (2.5% reading + 5 digits)

(2.5% reading + 10 digits)

40mA 0.01mA

400mA 0.1mA

(2.5% reading + 5 digits)

Resistance

10A 0.01A (3.0% reading + 7 digits)

400  0.1 (1.2% reading + 4 digits)

(1.0% reading + 2 digits) 4k  0.001k

40k  0.01k

400k  0.1k (1.2% reading + 2 digits)

4M  0.001M

40M  0.01M (2.0% reading + 3 digits)

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Function Range Resolution Accuracy

Capacitance 40nF 0.01nF (5.0% reading + 7 digits)

Frequency

400nF 0.1nF

4 F 0.001F

40 F 0.01F

100 F 0.1F

5.999Hz 0.001Hz

59.99Hz 0.01Hz

(3.0% reading + 5 digits)

(5% reading + 5 digits)

(1.5% reading + 1 digits)

599.9Hz 0.1Hz

5.999kHz 0.001kHz

59.99kHz 0.01kHz

599.9kHz 0.1kHz

(1.2% reading + 3 digits)

Duty Cycle

Temp

(type-K)

5.999MHz 0.001MHz

9.999MHz 0.001MHz

(1.5% reading + 4 digits)

Sensitivity: 0.5V rms <500kHz; 3V rms >500kHz

0.1 to 99.9% 0.1% (1.2% reading + 2 digits)

Pulse width: 100µs - 100ms, Frequency: 5Hz to 150kHz

-4 to 1382 F

-20 to 750 C

0.1

<400

1  ≥ 400

(3.0% reading + 5C /9F )

(probe accuracy not included)

Supplied Probe range: -58.0 to 482 o F (-50.0 to 250 o C)

Note: An optional probe that is rated to the full range of the meter is available from the www.craftsman.com

website.

Note: Accuracy is stated at 65 o than 75% RH.

F to 83 o F (18 o C to 28 o C) and less

Note: 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 converter.

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Enclosure

Shock (Drop Test)

Diode Test

Continuity Check

Double molded, waterproof (IP67)

6.5 feet (2 meters)

Test current of 0.3mA typical, open circuit voltage 1.5V DC typical

Audible signal will sound if the resistance is less than 100  (approx.), test current <0.3mA

Temperature Sensor Requires type K thermocouple

Input Impedance 7.8MΩ

AC Response

ACV Bandwidth

Crest Factor

True rms

50Hz to 400Hz

≤3 at full scale up to 500V, decreasing linearly to ≤1.5 at 1000V

4,000 count backlit liquid crystal Display

Overrange indication “OL” is displayed

Auto Power Off 30 minutes (approximately)

Polarity Automatic (no indication for positive);

Minus (-) sign for negative

Measurement Rate 2 times per second, nominal

Low Battery Indication “ ” is displayed if battery voltage drops below operating voltage

Battery One 9 volt (NEDA 1604) battery

Fuses mA, µA ranges; 0.5A/1000V ceramic fast blow

A range; 10A/1000V ceramic fast blow

Operating Temperature 41 F to 104F (5C to 40C)

Storage Temperature -4 F to 140F (-20C to 60C)

Operating Humidity Max 80% up to 87 F (31C) decreasing linearly to 50% at 104 F (40C)

Storage Humidity <80%

Operating Altitude

Weight

Size

7000ft. (2000meters) maximum.

0.908lb (412g) (includes holster).

7.2” x 3.2” x 2.2” (182 x 82 x 55mm)

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Safety This meter is intended for origin of installation use and protected, against the users, by double insulation per EN61010-1 and IEC61010-1 2 nd

Edition (2001) to Category IV 600V and Category III

1000V; Pollution Degree 2. The meter also meets

UL 61010-1, 2 nd Edition (2004), CAN/CSA C22.2

No. 61010-1 2 nd Edition (2004), and UL 61010B-2-

031, 1 st Edition (2003)

Approvals UL CE

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

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BATTERY INSTALLATION

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover.

1. Turn power off and disconnect the test leads from the meter.

2. Open the rear battery cover by removing two screws (B) using a Phillips head screwdriver.

3. Insert the battery into battery holder, observing the correct polarity.

4. Put the battery cover back in place. 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 batteries to make sure that they are still good and that they are properly inserted.

A A

B

B A

F1 F2

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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. If “OL” appears in the display during a measurement, the value exceeds the range you have selected. Change to a higher range.

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 MEASUREMENTS

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 V position.

2. Press the MODE button to select DC (if necessary).

3. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive V jack.

4. 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.

5. Read the voltage in the display.

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AC VOLTAGE (Frequency, Duty Cycle) MEASUREMENTS

AC VOLTAGE: 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.

WARNING: To avoid electric shock, make sure the probe tips are touching the metal contacts inside the outlet before assuming 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 V position.

2. Press the MODE button to select AC (if necessary)

3. Insert the black test lead banana plug into the negative COM jack.

Insert red test lead banana plug into the positive V jack.

4. Touch the black test probe tip to the neutral side of the circuit.

Touch the red test probe tip to the “hot” side of the circuit.

5. Read the voltage in the display.

6. Press the HZ/% button to indicate “Hz”.

7. Read the frequency in the display.

8. Press the Hz/% button again to indicate “%”.

9. Read the % of duty cycle in the display.

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DC CURRENT MEASUREMENTS

CAUTION: Do not make current measurements on the 20A 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 4000µA DC, set the function switch to the µA position and insert the red test lead banana plug into the µA/mA jack.

3. For current measurements up to 400mA DC, set the function switch to the mA position and insert the red test lead banana plug into the µA/mA jack.

4. For current measurements up to 10A DC, set the function switch to the 10A position and insert the red test lead banana plug into the 10A jack.

5. Press the MODE button to indicate “DC” on the display.

6. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current.

7. 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.

8. Apply power to the circuit.

9. Read the current in the display.

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AC CURRENT (Frequency, Duty Cycle) MEASUREMENTS

CAUTION: Do not make current measurements on the 20A 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 4000µA

AC, set the function switch to the µA position and insert the red test lead banana plug into the µA/mA jack.

3. For current measurements up to 400mA

AC, set the function switch to the mA position and insert the red test lead banana plug into the µA/mA jack.

4. For current measurements up to 10A AC, set the function switch to the 10A position and insert the red test lead banana plug into the 10A jack.

5. Press the MODE button to indicate “AC” on the display.

6. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current.

7. Touch the black test probe tip to the neutral side of the circuit.

Touch the red test probe tip to the “hot” side of the circuit.

8. Apply power to the circuit.

9. Read the current in the display.

10. Press the Hz/% button to indicate “Hz”.

11. Read the frequency in the display.

12. Press the Hz/% button again to indicate “%”.

13. Read the % duty cycle in the display.

14. Press the Hz/% button to return to current measurement.

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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 Ω CAP 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. Press the MODE button to indicate “ "on the display.

4. 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.

5. Read the resistance in the display.

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CONTINUITY CHECK

WARNING: To avoid electric shock, never measure continuity on circuits or wires that have voltage on them.

1. Set the function switch to the Ω CAP position.

2. Insert the black lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive  jack.

3. Press the MODE button to indicate” "and

“Ω” on the display

4. Touch the test probe tips to the circuit or wire you wish to check.

5. If the resistance is less than approximately

100 , the audible signal will sound. If the circuit is open, the display will indicate “OL”.

DIODE TEST

1. Set the function switch to the Ω CAP position.

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

3. Press the MODE button to indicate and V

on the display.

4. Touch the test probes to the diode under test.

Forward voltage will typically indicate 0.400 to 0.700V. Reverse voltage will indicate “OL”.

Shorted devices will indicate near 0V and an open device will indicate “OL” in both polarities.

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CAPACITANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements. Remove the batteries and unplug the line cords.

1. Set the rotary function switch to the Ω CAP 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. Press the MODE button to indicate “nF” on the display.

4. Touch the test leads to the capacitor to be tested.

5. The test may take up to 3 minutes or more for large capacitors to charge. Wait until the readings settle before ending the test.

6. Read the capacitance value in the display

FREQUENCY (Duty Cycle) MEASUREMENTS (Electronic)

1. Set the rotary function switch to the “Hz %” position.

2. Press the Hz/% button to indicate “Hz” in the display.

3. Insert the black lead banana plug into the negative COM jack and the red test lead banana plug into the positive Hz jack.

4. Touch the test probe tips to the circuit under test.

5. Read the frequency on the display.

6. Press the Hz/% button again to indicate “%” on the display.

7. Read the % of duty cycle on the display.

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TEMPERATURE MEASUREMENTS

1. Set the function switch to the ºF or ºC position.

2. Insert the Temperature Probe into the input jacks, making sure to observe the correct polarity.

3. Touch the Temperature Probe head to the part whose temperature you wish to measure. Keep the probe touching the part under test until the reading stabilizes (about 30 seconds).

4. Read the temperature in the display.

Note: The temperature probe is fitted with a type K mini connector.

A mini connector to banana connector adaptor is supplied for connection to the input banana jacks.

Note: The supplied thermocouple is rated for 482°F (250°C). For higher temperatures you can purchase a high temperature thermocouple from www.craftsman.com

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FREQUENCY SENSITIVITY (ELECTRICAL)

The frequency sensitivity is range dependent when the function is selected from while in the voltage or current measuring function. Below are typical sensitivities for the “electrical” measurement modes.

Range

( DC/AC )

4V ≥1.5V rms 5Hz~10kHz

40V, 400V

400mA

10A

≥10V rms

≥20V rms

1000V/1000V ≥420V rms

≥45mA rms

≥4A rms

5Hz~20kHz

5Hz~200kHz

50Hz~1kHz

5Hz~5kHz

5Hz~1kHz

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AUTORANGING/MANUAL RANGE SELECTION

When the meter is first turned on, it automatically goes into

Autoranging. This automatically selects the best range for the measurements being made and is generally the best mode for most measurements. For measurement situations requiring that a range be manually selected, perform the following:

1. Press the RANGE key. The “Auto” display indicator will turn off.

2. Press the RANGE key to step through the available ranges.

Observe the decimal point and units displayed until the preferred range is located.

3. To exit the Manual Ranging mode and return to Autoranging, press and hold the RANGE key for 2 seconds.

Note: Manual ranging does not apply for the Capacitance and

Frequency functions.

RELATIVE MODE

The relative measurement feature allows you to make measurements relative to a stored zero reference value. A reference voltage, current, etc. can be stored and measurements made in comparison to that value. The displayed value is the difference between the reference value and the measured value.

1. Perform the measurement as described in the operating instructions.

2. Press the REL button to store (zero) the reading in the display and the "REL" indicator will appear on the display.

3. The display will now indicate the difference between the stored value and the measured value.

4. Press the REL button to exit the relative mode.

Note: The Relative function does not operate in the Frequency function.

DISPLAY BACKLIGHT

Press the backlight button to turn on. The light will slowly fade to off after approxamately 10 to 15 seconds.

HOLD

The hold function freezes the reading in the display. Press the

HOLD key momentarily to activate or to exit the HOLD function.

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AUTO POWER OFF

The auto off feature will turn the meter off after 30 minutes. To disable the auto power off feature, hold down the MODE button and turn the meter on.

LOW BATTERY INDICATION

The icon will appear in the display when the battery voltage becomes low. Replace the battery when this appears.

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MAINTENANCE

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the back cover or the battery cover.

WARNING: To avoid electric shock, do not operate your meter until the battery cover is 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 NORMAL

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

3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage the electronic parts or the case.

4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth. DO NOT use chemicals, cleaning solvents, or detergents.

5. USE ONLY FRESH BATTERIES 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.

UL LISTED

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

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BATTERY INSTALLATION

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover.

1. Turn power off and disconnect the test leads from the meter.

2. Open the rear battery cover by removing two screws (B) using a Phillips head screwdriver.

3. Insert the battery into battery holder, observing the correct polarity.

4. Put the battery cover back in place. 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 batteries to make sure that they are still good and that they are properly inserted.

REPLACING THE FUSES

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.

2. Remove the battery cover

(two “B” screws) and the battery.

A

B

A

F1 F2

B A

3. Remove the six “A” screws securing the rear cover.

4. Gently remove the old fuse and install the new fuse into the holder.

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5. Always use a fuse of the proper size and value (0.5A/1000V fast blow for the 400mA range [SIBA 70-172-40], 10A/1000V fast blow for the 20A range [SIBA 50-199-06]).

6. Replace and secure the rear cover, battery and battery cover.

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

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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 doesn’t operate, check to be sure that both ends of the fuse are properly installed.

If You Do Not Understand How the Meter Works:

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

SERVICE AND PARTS

Item Number

82378

82003-D

82003-C

82003-CS

Description

Set of black and red Test Leads

Replacement battery cover cover

Rear cover screws

For replacement parts shipped directly to your home

Call 9 am – 5 pm Eastern Time, M - F

1-888-326-1006

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