Craftsman 82170 User manual

Owner's Manual
Digital MultiMeter
Model No.
82170
Sears, Roebuck and Co., Hoffman Estates, IL 60179
www.craftsman.com 061606
•
Safety
•Operation
•Maintenance
•Español
CAUTION: Read, understand and
follow Safety Rules and Operating
Instructions in this manual before
using this product.

2
TABLE OF CONTENTS
Page
Warranty 3
Safety Instructions 4
Safety Symbols 5
Control and Jacks 5
Symbols and Annunciators 6
Specifications 6
Battery Installation 8
Operating Instructions 9
Data Hold 9
Backlight 9
Range Indicator 9
Safety Shutters 9
DC Voltage Measurements 10
AC Voltage Measurements 10
DC Current Measurements 11
AC Current Measurements 11
Resistance Measurements 12
Continuity Check 12
Diode Test 13
Frequency Measurements 13
Capacitance Measurements 14
Temperature Measurements 14
Maintenance 15
Replacing Batteries 15
Replacing Fuses 16
Troubleshooting 17
Service and Parts 17

3
ONE YEAR FULL WARRANTY
ONE YEAR FULL WARRANTY ON CRAFTSMAN MANUAL RANGING
MULTIMETER
If this CRAFTSMAN Manual Ranging 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.
If this CRAFTSMAN Manual Ranging MultiMeter 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.

4
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
V DC 200mV range 250V DC or AC
V DC/V AC >200mV ranges 1000V DC or 700V AC
mA DC/AC 200mA DC/AC
20A DC/AC 20A DC/AC (30 seconds max every 15
minutes)
Frequency, Resistance,
Capacitance, Diode test,
Continuity, Temperature
250V DC/AC
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.

5
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.
Double Insulation
CONTROLS AND JACKS
1. 2000 count Liquid Crystal Display
2. Power switch
3. Function Switch
4. mA current input jack
5. 20A current input jack
6. Backlight pushbutton.
7. Data Hold pushbutton
8. Voltage, resistance capacitance and
temperature positive input jack
9. Common negative input jack
WARNING
CAUTION
MAX
500V
1
2
3
4
5
6
7
8
9

6
SYMBOLS AND ANNUNCIATORS
Continuity
Low Battery
Diode
HData Hold
AC Alternating Current or Voltage
DC Direct Current or Voltage
SPECIFICATIONS
Function Range Resolution Accuracy
200mV 0.1mV ±(0.5% reading + 1 digit)
2V 1mV
20V 10mV
200V 100mV
±(0.5% reading + 3 digits)
DC Voltage
(V DC)
1000V 1V ±(0.8% reading + 3 digits)
2V 1mV
20V 10mV
200V 100mV
±(1.0% reading + 5 digits
AC Voltage
(V AC)
(40 - 400Hz) 700V 1V ±(1.2% reading + 5 digits
2mA 1µA
20mA 10µA ±(1.0% reading + 3 digits)
200mA 100µA ±(1.5% reading + 5 digits)
DC Current
(A DC)
20A 10mA
±(2.0% reading + 10 digits)
2mA 1µA ±(1.2% reading + 5 digits)
200mA 100µA ±(2.0% reading + 5 digits)
AC Current
(AAC)
(40 - 400Hz) 20A 10mA
±(3.0% reading + 10 digits)
200Ω0.1Ω±(1.0% reading + 10 digits)
2kΩ1Ω
20kΩ10Ω
200kΩ100Ω
2MΩ1kΩ
±(1.0% reading + 1 digit)
Resistance
20MΩ10kΩ±(1.0% reading + 5 digits)

7
SPECIFICATIONS
Function Range Resolution Accuracy
2nF 1pF
20nF 10pF
200nF 0.1nF
2µF 1nF
Capacitance
20µF 10nF
±(4.0% reading + 3 digits)
20kHz 10Hz
±(1.5% reading + 10 digits)
Frequency Sensitivity: 200mVac RMS to 10Vac RMS
0 to 32°F ±(5.0% reading + 5 digits)
32 to 750°F ±(1.0% reading + 3 digits)
Temperature
760 to 1800°F
1°F
±(2.0% reading + 3 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 64oF to 82oF (18oC to 28oC) and less than
75% RH ambient MultiMeter conditions.
Diode Test Test current of approximately 1mA, open circuit
voltage 2.8V DC typical
Continuity Check Audible signal will sound if the resistance is
less than approximately 40Ω, open circuit
voltage 2.8V DC typical
Temperature sensor Type K temperature probe
Input Impedance 10MΩ(VDC and VAC)
Display 2000 count LCD
Overrange indication “1” is displayed
Polarity Automatic (no indication for positive polarity);
Minus (-) sign for negative polarity.
Measurement Rate 0.4 seconds, nominal
Low Battery Indication “ ” is displayed if battery voltage drops
below operating voltage

8
SPECIFICATIONS
Batteries Requires one 9V NEDA 1604 or 6F22 battery
(sold separately)
Fuses mA range, 200mA/250V fast blow ceramic
20A range, 20A/250V fast blow
Operating Temperature 32oF to 104oF (0oC to 40oC)
Storage Temperature 10oF to 122oF (-10oC to 50oC)
Relative Humidity <70% operating
Operating Altitude 2000 meters (7000ft.) maximum.
Weight 12.34oz. (350g).
Size 7.52” x 3.23” x 1.42” (191mm x 82mm x 36mm)
Safety For indoor use and in accordance with
Overvoltage Category II, Pollution Degree 2.
Category II includes local level, appliance,
portable equipment, etc., with transient
overvoltages less than Overvoltage Category
III.
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. Open the battery door by lifting the rear stand and removing the two
screws using a Phillips head screwdriver.
3. Insert the battery into battery holder, observing the correct polarity.
4. Put the battery door back in place. Secure with the two screws.
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.

9
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 press the POWER 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.
DATA HOLD
The Data Hold function allows the meter to "freeze" a measurement for
later reference.
1. Press the DATA HOLD button to “freeze” the reading on the indicator.
The indicator “ H“ will be appear in the display.
2. Press the DATA HOLD button to return to normal operation.
BACKLIGHT
The backlight function illuminates the display to improve readability in dimly
lighted areas.
1. Press the “ “ button to turn the backlight on.
2. In order to conserve power, the backlight will automatically turn off after
5 seconds.
RANGE INDICATOR
The number below the decimal point in the LCD display indicates the full
scale value of the range selected by the function switch.
INPUT SHUTTERS
The yellow input shutters either block or open the input jacks to insure
proper test lead connections for the measurement function selected.

10
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.