CRAFTSMAN Digital Multi Meter Owner’s Manual (Model No. 82141)

CAUTION: Read, understand and follow Safety Rules and Operating Instructions in this manual before using this product. 

• Safety
• Operation
• Maintenance
• Espanola 

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

www.craftsman.com 070606

ONE YEAR FULL WARRANTY

 ONE YEAR FULL WARRANTY ON CRAFTSMAN MANUAL RANGING MULTIMETER

If this CRAFTSMAN Manual Ranging Multi Meter 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.

lf this CRAFTSMAN Manual Ranging Multi Meter is used for commercial or rental purposes, this warranty applies for 90 days from the date of purchase.

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-5 PM (EST)

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.

 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
function	Maximum input
VAC	600V DC/AC
V DC or V AC	600V DC/AC 200V on 200Mv range
mA DC	200Ma 250v fast acting fuse
A DC	10A 250V fast acting fuse(30 seconds max every 15 minutes
Resistance	250Vrms for 15 sec max

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the “COM” input jack exceeds 500V 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 the power and disconnect the test leads before opening the doors to replace the fuse or batteries.

7. NEVER operate the meter unless the back cover and the battery and fuse doors are in place and fastened securely.

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.

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) 500 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.

CONTROLS AND JACKS

1. LCD Display

2. Function switch

3. COM jack ICN

4. 10A jack

5. Positive jack

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

SYMBOLS AND ANNUNCIATORS

m     milli ( volts, amps)

k    kilo 

VDC     volts direct current

VAC     volts alternating current

ADC     amps direct current

AAC     amps alternating current

BAT     Battery test

SPECIFICATIONS

Function	range	resolution	Accuracy
DC Voltage (V DC)	200mV 2000mV 20V  200V600V	0.1mV1mV0.01V0.1V1V	+(0.5% reading + 2 digits)
AC Voltage (V AC)	200V 600V	0.1V1V	+(1.5% reading + 5 digits(50/60HZz)
DC Current (A DC)	200mA10A	100uA 10mA	+(1.2% reading + 2 digits) +(2.0% reading + 2 digits)
AC Current (A AC)	200mA 10A	100uA 10mA	+(1.8% reading+ 5 digits)+(3.0% reading + 5 digits)
Resistance	200q 2000q 20kq 200kq 2000kq	0.19100.01kq0.1kq1kq	+(0.8% reading + 2 digits)+(1.0% reading + 2 digits
Battery Test	9V 1.5V	10 mv10mV	+(1.0% reading + 2 digits)

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.

NOTE: Accuracy is stated at 65°F to 83°F (18°C to 28°C) and less than 75% RH.

SPECIFICATIONS

Diode Test           Test current of 1mMA maximum, open circuit voltage 2.8V DC typical

Continuity Check  Audible signal will sound if the resistance is less than approximately 30Q

Battery Test current     9V (6mA); 1.5V (100mA)

Input Impedance       >1{MQ

ACV Bandwidth         45Hz to 450Hz

DCA voltage drop 200mV

Display  3 1/2 digit, 2000 count LCD, 0.5” digits

Over range indication “1” is displayed

Polarity     Automatic (no indication for positive polarity); Minus (-) sign for negative polarity

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, WA ranges; 0.2A/250V fast blow 

             A range; 10A/250V 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    70000ft. (2000) meters maximum.

Weight    9.17 oz. (260g).

Size 4.78” x 2.38” x 1.57” (121.5mm x 60.6mm x40mm)

Safety   For indoor use and in accordance with Over voltage Category II, Pollution Degree 2 Category II includes local level, appliance, portable equipment, etc., with transient over voltages less than Overvoltage Category Ill.

BATTERY INSTALLATION

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

1. Disconnect the test leads from the meter.

2. Remove the protective rubber holster (if installed)_

3. Open the battery door by loosening the screw using a Phillips head screwdriver. 

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

5. Put the battery door back in place. Secure with the screw.

WARNING: To avoid electric shock, do not operate the meter until the battery door 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.

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 “1” 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 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.

AC VOLTAGE MEASUREMENTS

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.

DC CURRENT MEASUREMENTS

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.

AC CURRENT MEASUREMENTS

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

3. For current measurements up to 10A AC, 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.

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 Q position.

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

Insert the red test lead banana plug into the positive Q 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.

 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 position.

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

Insert the red test lead banana plug into the positive (Q) jack.

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

4. If the resistance is less than approximately 30Q, the audible signal will sound. If the circuit is open, the display will indicate “1”.

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 400 to 700mV. Reverse voltage will indicate “1”. Shorted devices will indicate near OmV. Shorted devices will indicate near OmV and an open device will indicate “1” in both polarities.

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 BAT 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

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 doors.

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

This Multi Meter 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 ALONG PERIOD OF TIME, the batteries should be removed to prevent damage to the unit.

REPLACING BATTERIES

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

1. When the batteries become exhausted or drop below the operating voltage, t will appear in the lower left corner of the LCD display. The batteries should be replaced.

2. Follow instructions for installing batteries. 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 door is in place and fastened securely.

 REPLACING FUSES

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

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

2. Remove the protective rubber holster.

3. Open the fuse door by loosening the screw on the door 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 (0.2A/250V fast blow for the 200mA range, 

   10A/250V fast blow for the 10A range). 

7. Put the fuse door back in place. Insert the screw and tighten it securely.

WARNING: To avoid electric shock, do not operate your meter until the fuse door 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.

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 batteries are properly installed.

3. Check to be sure the batteries are 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 Multi testers 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

82141-DB      Replacement battery door

82141-DF       Replacement fuse door

82141-CS       Rear covers screws

For replacement parts shipped directly to your home

Call 9 am — 5 pm Eastern Time, M – F

1-888-326-1006

You can download the PDF version of CRAFTSMAN Digital Multi Meter Owner’s Manual here.