Owner's Manual
True RMS Multimeter with IR Thermometer
Model No. 82024
CAUTION: Read, understand and follow Safety Rules and Operating
Instructions in this manual before using this product.
Safety
Operation
Maintenance
Español
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
www.craftsman.com 122112
TABLE OF CONTENTS
Warranty
Safety Instructions
Safety Symbols
Control and Jacks
Symbols and Annunciators
Specifications
Battery anf Fuse Replacement
Operating Instructions
AC/DC Voltage Measurements
AC/DC Current Measurements
Resistance Measurements
Continuity Check
Diode Test
IR Temperature Measurements
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Service and Parts
ONE YEAR FULL WARRANTY
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CRAFTSMAN ONE YEAR FULL WARRANTY
FOR ONE YEAR from the date of purchase, this product is warranted against defects in material or workmanship. A defective product will be replaced free of charge.
For warranty coverage details to obtain free replacement, visit the web site: www.craftsman.com
This warranty is void if this product is ever used while providing commercial services or if rented to another person.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears Brands Management Corporation, 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 Protection Limits
V AC/DC, Resistance, Diode Test, Continuity
μA or mA AC/DC
A AC/DC
2. USE EXTREME CAUTION when working with high voltages.
600 VDC/AC rms
200mA fused
10A fused
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 the power and disconnect the test leads before opening the covers to replace the fuse or batteries.
7. NEVER operate the meter unless the back cover and the battery and fuse covers are 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.
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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
This WARNING symbol indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury.
CAUTION
MAX
600V
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) 600 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.
PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY I
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appropriate low level.
Note – Examples include protected electronic circuits.
OVERVOLTAGE CATEGORY II
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from the fixed installation.
Note – Examples include household, office, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.
Note – Examples include electricity meters and primary over-current protection equipment
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CONTROLS AND JACKS
3. 2000 count LCD
7. mA, µA and 10A input jacks
8. IR Thermometer button
10. RANGE button
11. Positive input jack
12. COM input jack
Note: Tilt stand, test lead holders, and battery compartment are on rear of unit.
SYMBOLS AND ENUNCIATORS
Continuity test
-6
) (amps)
A Amps k kilo
) (ohms)
Ohms
V Volts
MAX Maximum
AUTO Autoranging hold
SCAN IR temperature in progress
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SPECIFICATIONS
Function Range
DC Voltage 200 mV
Resolution
0.1 mV
Accuracy
(0.8% reading + 6 digits)
2V 0.001V
(0.5% reading + 2 digits)
20V 0.01V
200V 0.1V
(0.8% reading + 2 digits)
600V 1V
AC Voltage
(50/60Hz)
200 mV 0.1 mV
2V 0.001V
20V 0.01V
(1.5% reading + 6 digits)
200V 0.1V
600V 1V
DC Current
All AC voltage ranges are specified from 5% of range to 100% of range
200
A 0.1
2000
A 1
20 mA 0.01 mA
(1.5% reading + 5 digits)
200 mA 0.1 mA
AC Current
(50/60Hz)
10 A 0.01 A
Note:10A for 30 sec max
200
A 0.1
2000
A 1
20 mA 0.01 mA
200 mA 0.1 mA
(2.5% reading + 5 digits)
(1.5% reading + 8 digits)
(3.0% reading + 5 digits)
10 A 0.01 A
Note: 10A for 30 sec max
NOTE: Accuracy is stated at 18 o
C to 28 o
C (65 o
F to 83 o
F) and less than 75% RH.
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Function Range
Resistance
200
Resolution Accuracy
(0.8% reading + 5 digits)
2 k
0.001
Temperature IR
20 k
(0.8% reading + 2 digits)
200 k
0.1
2 M
0.001
(2.5% reading + 8 digits)
20 M
0.01
0 to 30
F / -17 to -1C
31 to 150°F / -0.5 to 65
C
151 to 400°F / 66 to 204
C
0.1
C/F
15F / 8.3C
6F / 3.3C
4.0% of reading
Enclosure
Double molded
Diode Test Test current of 0.9mA maximum, open circuit voltage 2.8V DC typical
Continuity Threshold 20 to 50
, test current <1.5mA
Input Impedance 10MΩ VDC/VAC
AC Response
ACV Bandwidth
True RMS
40Hz to 1000Hz
IR Spectral response
6 to 16µm
IR Emissivity
0.95 fixed
IR distance ratio
Laser pointer
Display
4:1
Class 2 laser < 1mW power; Wavelength is 630 to 670nm
2,000 count backlit liquid crystal display
Overrange indication “OL” is displayed
Auto Power Off
15 minutes (approximately)
Polarity Automatic (no indication for positive); Minus (-) sign for negative
Measurement Rate
Battery
2 times per second, nominal
One 9 volt (NEDA 1604) battery
Fuses mA, µA ranges; 200mA 250V ceramic fast blow
A range; 10A 600V ceramic fast blow
Operating Temperature -10ºC to 40ºC (14ºF to 122ºF)
Storage Temperature -10 o
C to 60 o
C (14 o
F to 140 o
F)
Operating Humidity
Storage Humidity
Operating Altitude
Max 80% up to 31ºC (87ºF) decreasing linearly to 50% at 40ºC (104ºF)
<80%
2000 meters (7000 ft) maximum
Weight
Size
Safety
Approvals
260 g (9.17oz)
147x76x42 mm (5.8x2.9x1.6”)
This meter is intended for origin of installation use and protected, against the users, by double insulation per IEC/EN 61010-1:2001 and IEC/EN
61010-031:2002 to Category III 600V; Pollution Degree 2.
CE
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BATTERY AND FUSE REPLACEMENT
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/fuse compartment by removing the Phillips head screw on the lower rear of the meter. .
3. Pull down on the cover to release the latch and then lift it off.
4. Remove the old battery or fuse and install a new one of the correct rating.
5. Place the battery/fuse cover back in place. Secure with the screw.
WARNING: To avoid electric shock, do not operate the meter until the battery cover is in place and fastened securely.
NOTE: If the meter does not work properly, check the fuses and replace the battery to make sure that they are still good and that they are properly inserted.
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OPERATING INSTRUCTIONS
WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are extremely 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.
AUTORANGING/MANUAL RANGE SELECTION
When the meter is first switched on, it automatically enters the AutoRanging mode. 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 button. The “AUTO” display indicator will turn off.
2. Press the RANGE key to step through the available ranges until the range desired is selected.
3. Press and hold the RANGE button for 2 seconds to exit manual ranging.
Note: Manual ranging does not apply to the Temperature, Diode and Continuity functions.
MAX (MAXIMUM READING) MODE
1. Press the MAX button to activate the MAX mode. The display icon "MAX" will appear. The meter will display and hold the maximum reading and will update only when a new maximum value is detected.
2. Press the MAX button again to exit the mode.
Note: Max does not apply to the Resistance, Diode and Continuity functions.
DISPLAY BACKLIGHT
Press and hold the IRT button for 2 second to turn the backlight on. The backlight will automatically turn off after approximately 10 seconds or press and hold the button again for 2 seconds to manually turn it off.
HOLD
The HOLD function freezes the reading in the display. Press the HOLD button momentarily to activate or to exit the HOLD function.
Note: The HOLD button does not function in the IR measurement mode.
AUTO SLEEP
If no button is pressed the auto sleep feature will place the meter in sleep mode after approximately
15 minutes of operation. If this happens, press any button to wake the meter or switch the meter to
OFF if it no longer in use.
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AC/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. Rotate the function switch to the V
AC
or 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.
AC/DC CURRENT MEASUREMENTS
1. Insert the black test lead banana plug into the negative COM jack.
2. Press the MODE button to indicate “DC” or “AC” on the display.
3. For current measurements up to 2000µA, set the function switch to the µA position and insert the red test lead banana plug into the µA/mA jack.
4. For current measurements up to 200 mA DC, set the function switch to the mA position and insert the red test lead banana plug into the µA/mA jack.
5. 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.
6. Connect the test leads in series with the circuit under test.
7. Apply power to the circuit.
8. Read the current in the display.
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. Rotate the function switch to the Ω 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 device under test.
4. 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 a voltage potential.
1. Rotate 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 jack.
3. Press the MODE button to indicate“ " 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 the continuity threshold, the audible signal will sound.
DIODE TEST
1. Rotate the function switch to the green position.
2. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive 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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NON-CONTACT INFRARED TEMPERATURE MEASUREMENTS
1. Rotate the function switch to the IR position. The upper right four digit temperature display will switch on.
3. Aim the infrared sensor (top of meter) at the surface to be measured.
4. Press and Hold the IRT button to turn on the IR thermometer and laser pointer. The laser pointer identifies the surface spot to be measured and “SCAN” will flash in the display.
5. Read the temperature in the display.
6. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size values listed in the specification table. the button to turn the IR thermometer and laser pointer off. “HOLD” and the final measured value will remain in the display.
WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of time.
IR Spot to Distance Diagram
The 4:1 spot to distance ratio determines the size of the measured surface area with respect to the distance the meter is held away from the surface.
1”
@ 4”
2”
@ 8”
4”
@ 16”
20mm
@ 160mm 80mm
IR Measurement Notes
1. The object under test should be larger than the spot (target) size calculated by the field of view diagram.
2. If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements.
3. If an object's surface is highly reflective, apply masking tape or flat black paint to the surface before measuring.
4. The meter will not make measurements through glass steam, dust, and smoke.
5. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and down motion) until the hot spot is located.
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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.
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
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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