Craftsman 82315 User manual

Owner’s Manual
Mini Multimeter
with Non-Contact
Voltage Detector
(NCV)
Model No.
82315
© Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
www.craftsman.com 080706
•Safety
•Operation
•Maintenance
•Español
CAUTION: Read, understand and
follow Safety Rules and Operating
Instructions in this manual before
using this product.
REL

2
TABLE OF CONTENTS
Warranty............................................................................................ 3
Safety Instructions ............................................................................ 4
Safety Symbols ................................................................................. 5
Controls And Jacks........................................................................... 6
Display Symbols And Annunciators ................................................. 7
Specifications.................................................................................... 8
Battery Installation .......................................................................... 13
Operating Instructions .................................................................... 14
Non-Contact AC Voltage Detector ............................................. 15
AC Voltage Measurements......................................................... 16
DC Voltage Measurements......................................................... 17
AC / DC Current Measurements................................................. 18
Resistance Measurements ......................................................... 19
Continuity Check ......................................................................... 20
Diode Test ................................................................................... 21
Capacitance Measurements ....................................................... 22
Frequency Measurements .......................................................... 23
Contact Temperature Measurements ........................................ 24
Auto-Manual Range Selection.................................................... 25
Relative Mode………………………………………………………24
Maintenance ................................................................................... 26
Low Battery Indication................................................................. 27
Battery Replacement .................................................................. 28
Replacing The Fuses .................................................................. 28
Troubleshooting .............................................................................. 29
Service And Parts ........................................................................... 30

3
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.

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 Protection Limits
Function Maximum Input
V DC or V AC 600V AC and DC
mA AC/DC 500mA DC/AC
A AC/DC 10A DC/AC (for 30 seconds max.
every 15 minutes)
Resistance, Diode Test,
Continuity
250V DC/AC
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
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 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.

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 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.
WARNING
CAUTION
MAX
600V

6
CONTROLS AND JACKS
1. AC Voltage Detector
Sensor
2. AC Voltage Detector
indicator light
3. LCD display
4. RELATIVE push-
button
5. MODE button
6. Non-contact AC
Voltage Detector test
button
7. Rotary function dial
8. 10 ampere test lead
jack
9. COM test lead jack
10. Test lead jack for
voltage, milli-amp,
micro-amp, resistance, capacitance, frequency, and
temperature functions
11. RANGE button
12. HOLD button
13. Protective rubber holster (must be removed to access the rear
battery compartment)
REL

7
DISPLAY SYMBOLS AND ANNUNCIATORS
•))) Continuity
Diode test
Battery status
n nano (10-9) (capacitance)
!micro (10-6) (amps, cap)
m milli (10-3) (volts, amps) A Amps
k kilo (103) (ohms) F Farads (capacitance)
M mega (106) (ohms) ! Ohms
Hz Hertz (frequency) V Volts
% Percent (duty ratio) REL Relative
AC Alternating current AUTO Autoranging
DC Direct current HOLD Display hold
ºF Degrees Fahrenheit ºC Degrees Centigrade

8
SPECIFICATIONS
Function Range Resolution Accuracy
Non-contact
AC Voltage
detector
100 to
600VAC
Resolution & accuracy do not apply
since the meter does not display the
voltage in this mode. The lamp at the
top of the meter’s display flashes when
voltage is sensed and an audible
warning will sound.
400mV 0.1mV !(0.5% reading + 2 digits)
4V 0.001V
40V 0.01V
400V 0.1V
!(1.0% reading + 2 digits)
DC Voltage
(V DC)
600V 1V !(1.5% reading + 2 digits)
400mV 0.1mV !(1.0% reading + 30 digits)
4V 0.001mV
40V 0.01V
400V 0.1V
!(1.5% reading + 3 digits)
AC Voltage
(V AC)
(50 / 60Hz)
600V 1V !(2.0% reading + 4 digits
400"A 0.1"A !(1.0% reading + 3 digits)
4000"A 1"A
40mA 0.01mA
400mA 0.1mA
!(1.5% reading + 3 digits)
DC Current
(A DC)
10A 0.01A !(2.5% reading + 5 digits)
400"A 0.1"A !(1.5% reading + 5 digits)
4000"A 1"A
40mA 0.01mA
400mA 0.1mA
!(1.8% reading + 5 digits)
AC Current
(A AC)
(50 / 60Hz)
10A 0.01A !(3.0% reading + 7 digits)

9
400!0.1!±(1.2% reading + 4 digits)
4k!1!
40k!0.01k!
400k!0.1k!
4M!0.001M!
±(1.2% reading + 2 digits)
Resistance
40M!0.01M!±(2.0% reading + 3 digits)
4nF 0.001nF
40nF 0.01nF
±(3.5% reading + 40 digits)
400nF 0.1nF ±(2.5% reading + 4 digits)
4µF 0.001µF
40µF 0.01µF ±(3.5% reading + 4 digits)
Capacitanc
e
200µF 0.1µF ±(3.5% reading + 10 digits)
10.000Hz 0.001Hz
100.00Hz 0.01Hz
1000.0 Hz 0.1Hz
10.000kHz 0.001kHz
100.00kHz 0.01kHz
1.000MHz 0.001MHz
10.00MHz 0.01MHz
40.00MHz 0.01MHz
±(0.1% reading + 1 digits)
Frequency
Sensitivity: 0.8V rms min. @ 20% to 80% duty cycle and
<100kHz; 5Vrms min @ 20% to 80% duty cycle and > 100kHz.
0.1 to
99.9%
0.1% ±(1.2% reading + 2 digits)Duty Cycle
For duty cycle the pulse width range is 100!s - 100ms
(Frequency: 5Hz to 150kHz)
-4 to
1382#F
1#FTemp (type-
K)
-20 to
750#C
1#C
±(3.0% reading + 8 digits)
(probe accuracy not included)

10
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
converter.
Accuracy is stated at 65oF to 83oF (18oC to 28oC) and less than
75% RH.
Diode Test Test current: 0.3mA max., Open
circuit voltage: 1.5V DC typ.
Continuity Check Audible signal will sound if the
resistance is less than 100!
Temperature Sensor Requires type K thermocouple
Input Impedance 10M!(VDC & VAC)
AC Bandwidth 50 / 60Hz
Display 4000 count (0 to 3999 digits) backlit
LCD
Overrange indication For all functions “OL” is displayed
(Note: For ACV measurements only,
an audible beep will also sound)
Auto Power Off After 15 minutes (approximately) of
inactivity
Polarity No indication for positive; Minus (-)
sign for negative
Measurement Rate 2 times per second, nominal
Low Battery Indication “ ” is displayed if battery voltage
is critically low
Battery Two (2) 1.5V ‘AAA’ batteries
Fuses mA, "A ranges: 500mA/250V fast
blow;
’A’ range: 10A/250V fast blow
Operating Temperature 32ºF to 122ºF (0ºC to 50ºC)
Storage Temperature -4oF to 140oF (-20oC to 60oC)
Operating Humidity <70% RH

11
Storage Humidity <80% RH
Operating Altitude 7000ft. (2000meters) maximum.
Weight 9.17 oz (260g) (includes holster).
Size 5.8” x 2.9” x 1.6” (147 x 76 x 42mm)
(includes holster)
Approvals UL, CE
Safety This meter is intended for indoor use and
protected, against the users, by double
insulation per EN61010-1 and IEC61010-1
2nd Edition (2001) to CAT II 1000V & CAT
III 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 61010B-2-
031, First Edition (2003)
UL LISTED The UL mark does not indicate that this
product has been evaluated for the accuracy of its readings.
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.

12
Note – Examples include electricity meters and primary over-
current protection equipment

13
BATTERY INSTALLATION
WARNING: To avoid electric shock, disconnect the test leads
from any source of voltage before removing the battery cover.
1. Disconnect the test leads from the meter.
2. Remove the rear battery cover by removing the two screws
using a Phillips head screwdriver.
3. Insert the battery into battery clips, observing the correct
polarity.
4. Put the battery cover back in place and secure with the two
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.

14
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.

15
NON-CONTACT AC VOLTAGE DETECTOR
The EX330 can detect the presence of AC voltage (from 100 to
600VAC) simply by being held very near to a voltage source.
WARNING: Test the AC voltage detector on a known live circuit
before each use.
WARNING: Before using the meter in the AC Voltage Detector
mode, verify that the battery is fresh by confirming characters
appear on the LCD when the function dial is turned to any
position. Do not attempt to use the meter as an AC Voltage
Detector if the battery is weak or bad.
NON-CONTACT VOLTAGE (NCV)
The NCV function works on any
rotary switch position.
1. Test the detector on a
known live circuit before
use.
2. Press and hold the NCV
button for the duration of
the test. The meter will
beep once when the
button is pushed.
3. Hold the top of the meter
very close to the voltage
source as shown.
4. If voltage is present, the
rim of the LCD display will
flash a bright orange and
an audible warning will sound.

16
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 VAC position.
2. Insert the black test lead
banana plug into the
negative COM jack.
Insert red test lead
banana plug into the
positive Vjack.
3. Touch the black test
probe tip to the neutral
side of the circuit.
4. Touch the red test probe
tip to the “hot” side of
circuit.
5. Read the voltage in the
display.
6. If the measured AC
voltage exceeds the
highest range of the
meter (refer to the specification table)
an audible tone will sound.

17
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
VDC position.
2. Insert the black test lead
banana plug into the negative
COM jack.
Insert the red test lead
banana plug into the positive
Vjack.
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.

18
AC / DC CURRENT MEASUREMENTS
CAUTION: Do not make current measurements at 10 Amps
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 4000!A, set the function
switch to the !A position and insert the red test lead banana
plug into the mA/!Ajack
3. For current measurements up to 400mA, set the function
switch to the mA position and insert the red test lead banana
plug into the mA/!Ajack.
4. For current measurements up to 10A, set the function switch
to the 10A range and insert the red test lead banana plug into
the 10A jack.
5. Use the MODE button to select AC or DC current. The
display will reflect the selection.
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.

19
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 ! 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
component under test. It is
best to disconnect one side
of the circuit under test so
the rest of the circuit will
not interfere with the
resistance reading.
4. Read the resistance in the
display.

20
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.
3. Insert the red test lead
banana plug into the positive
!jack.
4. Use the MODE button to view
the icon on the display.
5. Touch the test probe tips to
the circuit or wire you wish to
check.
6. If the resistance is less than
approximately 100!, the
audible signal will sound. If
the circuit is ‘open’ (bad), the
display will indicate “OL”.