ENGLISH
6. Frequency (Hz) / Duty Cycle < 1MHz
Features:
Duty
7. Temperature
Features:
Duty
•
• Fahrenheit range: -58° to 1832°F
• Celsius range: -50° to 1000°C
Testing Fuses
SELECT
• “O.L.” indicates blown fuse.
~
-
O
.L.
MIN
%
V
Ω
F
°F
n
m
M
HOLD
ºF º
C
PRESS
Hz Duty
MAX/MIN REL HOLD
ºF º
PRESS
C
°F °C
Do not apply voltage to thermocouple.
PRESS
º
Duty
F
SYMBOLS USED ON LCD
AC Measurement DC Measurement
Negative DC Value
Overload: Range Exceeded
Low Battery
Minimum Reading
Duty Cycle Mode Frequency Mode
Voltage Measurement
Resistance in Ohms Relative Reading
Capacitance in Farads Diode Test
Degrees Fahrenheit Continuity Test
-9
Nano 10
-3
Milli 10
6
Mega 10
ºF º
C
Duty
m
COM
ºF º
C
Duty
m
m
COM
m
COM
Auto Range Active
AT
Auto Power-Off Active
Apo
HOLD
Hold Active
Maximum Reading
M
AX
Current in Amps
A
Degrees Celsius
°C
Micro 10
µ
Kilo 10
k
ELECTRICAL SPECIFICATIONS
m
m
DC Voltage Measurement
Range Resolution Accuracy
400mV ˜ 400V 0.1mV ˜ 0.1V ± (0.5% + 4 digits)
1000V 1V ± (0.8% + 10 digits)
Overload Protection: 1000 V Input Impedance (Nominal): > 10 MΩ, < 100 pF
AC Voltage Measurement
Range Resolution Accuracy
400mV ˜ 400V 0.1mV ˜ 0.1V ± (0.75% + 5 digits) 40Hz ˜ 400Hz
1000V 1V ± (1.0% + 8 digits) 40Hz ˜ 400Hz
Overload Protection: 1000V RMS Input Impedance (Nominal): > 10MΩ, < 100pF
Response: Averaging
DC Current Measurement
Range Resolution Accuracy
400µA ˜ 400mA 0.1µA ˜ 0.1mA ± (1.0% + 5 digits)
4A ˜ 10A 1mA ˜ 10mA ± (1.5% + 5 digits)
Overload Protection:
• µAmA Input: 400mA (F 440mA / 1000V fuse)
• A Input: 10A (F 11A / 1000V fuse)
AC Current Measurement
Range Resolution Accuracy
400µA ˜ 400mA 0.1µA ˜ 0.1mA ± (1.5% + 5 digits)
4A ˜ 10A 1mA ˜ 10mA ± (2.0% + 5 digits)
Overload Protection:
• µAmA Input: 400mA (F 440mA / 1000V fuse)
• A Input: 10A (F 11A / 1000V fuse)
Frequency: 40Hz to 400Hz
Response: Averaging
Temperature Measurement
Range Resolution Accuracy
-58 ˜ 1832°F 0.1 ~ 1°F ± (3.0% + 5.4°F)
-50 ˜ 1000°C 0.1 ~ 1°C ± (3.0% + 3.0°C)
Overload Protection: 600V RMS
Thermocouple Accuracy: Not specified
Diode Test
Overload Protection Test Current (Typical) Open Circuit Voltage Range
600V RMS 0.25mA
<
1.6V DC 2.0V DC
Continuity Test
Overload Protection Open Circuit Voltage
600V RMS Appx. 0.44V
WARRANTY
www.kleintools.com/warranty
CLEANING
Turn instrument off and disconnect test leads. Clean the instrument by using a damp cloth.
Do not use abrasive cleaners or solvents.
STORAGE
Remove the batteries when instrument is not in use for a prolonged period of time. Do not
expose to high temperatures or humidity. After a period of storage in extreme conditions
exceeding the limits mentioned in the Specifications section, allow the instrument to return
to normal operating conditions before using it.
DISPOSAL / RECYCLE
Caution: This symbol indicates that equipment and its accessories shall
be subject to a separate collection and correct disposal.
Instruction Manual
ENGLISH
• AUTO /
MANUAL
RANGE
• MAX / MIN
• BAR GRAPH
• DATA HOLD
• 3-3/4 DIGIT
3999 COUNT
LCD
• BACKLIGHT
• LEAD
HOLDER
Resistance Measurement
Range Resolution Accuracy
400Ω ˜ 4MΩ 0.1Ω ˜ 0.001MΩ
40M
Ω 0.01MΩ
± (1.0% + 5 digits)
± (1.5% + 10 digits)
MM1000
Apo
AT
0 10 20 4030
MAX/MIN
RANGE
REL
SELECT
Duty
m
ºF º
COM
MM1000
V
HOLD
C
m
Temp
Overload Protection: 600V RMS
Capacitance Measurement
Range Resolution Accuracy
40nF 0.01nF
400nF ˜ 4000µF 0.1nF ˜ 1µF
± (3.5% + 6 digits)
Overload Protection (Voltage): 600V RMS
Frequency Measurement
Range Resolution Accuracy
-6
3
9.999Hz ˜ 999.9kHz 0.001Hz ˜ 0.1kHz ± (0.1% + 3 digits)
Overload Protection: 600V RMS Sensitivity: 0.7V RMS
Duty Cycle Measurement
Range Resolution Accuracy
0.1 ˜ 99.9% 0.1% ± (0.2% per kHz + 0.1% + 5 digits)
Overload Protection: 600V RMS
Frequency Range: 0.5Hz to 100kHz, pulsewidth > 2μsec
CUSTOMER SERVICE
KLEIN TOOLS, INC.
450 Bond Street
Lincolnshire, IL 60069
www.kleintools.com
139543T Rev. 11/13 B
ENGLISH
MM1000
Instruction Manual
GENERAL SPECIFICATIONS
The Klein Tools MM1000 is an auto-ranging multimeter. It measures AC/DC
voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, and
temperature. It can also test diodes and continuity.
• Operating Altitude: 2000 m
• Relative Humidity: < 75%
• Operating Temperature: 0°C / 32°F to 40°C / 104°F
• Storage Temperature: -20°C / -4°F to 60°C / 140°F < 80% R.H.
• Accuracy Temperature: 18°C / 64°F to 28°C / 82°F
• Temperature Coefcient: 0.1*(specified accuracy) / °C
• Sampling Frequency: 3 samples per second
• Dimensions: 7" x 3.5" x 1.875" (178 mm x 89 mm x 48 mm)
• Weight: 14 oz. (397 g)
• Calibration: Accurate for one year
• Accuracy: ± (% of reading + # of least significant digits)
• Drop Protection: 2 m (6 ft.)
• Safety Rating: CATIII 1000V, CAT IV 600V
WARNINGS
To ensure safe operation and service of the tester, follow these instructions.
Failure to observe these warnings can result in severe injury or death.
• Before each use, verify meter operation by measuring a known
voltage or current.
• Never use the meter on a circuit with voltages that exceed the
category based rating of this meter.
• Do not use the meter during electrical storms or in wet weather.
• Do not use the meter or test leads if they appear to be damaged.
• Ensure meter leads are fully seated, and keep fingers away from
the metal probe contacts when making measurements.
• Do not open the meter to replace batteries while the probes
are connected.
• Use caution when working with voltages above 60V DC,
or 25V AC RMS. Such voltages pose a shock hazard.
• To avoid false readings that can lead to electrical shock,
replace batteries if a low battery indicator appears.
• Unless measuring voltage or current, shut off and lock out
power before measuring resistance or capacitance.
• Always adhere to local and national safety codes. Use individual
protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed.
SYMBOLS
AC Alternating Current Warning or Caution
~
DC Direct Current Double Insulated Class II
DC/AC Voltage or Current AC Source
Ground
FEATURE DETAILS
H. Max / Min Hold
• Press to enter Max / Min mode; the largest and
smallest values will be saved while in this mode.
• Press repeatedly to alternate between the maximum and
minimum readings.
J
D
Apo
AT
MM1000
V
L
• Press for 2 seconds to return to live reading and clear the stored
maximum and minimum values.
I. Hold / Backlight
• Press to hold the current input on the display.
• Press again to return to live reading.
• Press for 2 seconds to enable/disable lights.
0 10 20 4030
G
F
E
REL
SELECT
RANGE
Duty
MAX/MIN
ºF º
HOLD
C
m
M
H
I
K
• Using lights drains the battery significantly.
J. K. Battery / Fuse Replacement
• When
indicator is displayed on the LCD, batteries must
be replaced.
• Remove rubber boot, back screw, and replace 2 x AAA batteries.
• This meter uses 440mA / 1000V and 11A / 1000V fast blow fuses.
L. Magnetic Hanger Accessory (optional, sold separately)
• Slide magnetic adapter into protective rubber boot.
• Attach instrument to metal for hands-free use.
M. Bar Graph
C
B
m
Temp
COM
A
• The bar graph shows an approximate analog representation
of a measurement.
• The bar graph responds much faster than the digital display.
• The scale of the bar graph is zero to the maximum reading of the
selected range.
FUNCTION INSTRUCTIONS
5
6
FEATURE DETAILS
A. B. C.
Use CAT III / CAT IV rated leads.
A. Do not attempt to measure more than 1000V.
B. Do not attempt to measure more than 400mA.
4
1
Duty
C. Do not attempt to measure more than 10A.
D. Auto Power-Off (Apo)
• Device will power off after 30 minutes non-use.
• Turn the dial or press a button to wake.
• Disabled during Max / Min function.
• Holding Select button while turning on disables Auto Power-Off.
E. Select Functionality Button
• Switch between AC and DC.
• Switch between
• Switch between
• Switch between
Ω, , and .
Hz and %.
°F and °C.
1. AC / DC Voltage: < 1000V
Duty
REL HOLD
PRESS
Features:
F. Relative Reading Mode
• Press to store current value.
• Display will now show the difference between the stored and
live readings.
• Press again to return to live reading.
G. Auto / Manual Range
• Select AC or DC voltage source.
ºF º
C
m
MAX/MINRANGE
1.5V
200
2k
20k
200k
2M
200m
m
COM
600V MAX
250mA/250V
~
7
3
2
2. AC / DC Current (large): < 10A
ºF º
C
m
REL HOLD MAX/MINRANGE
PRESS
Features:
• Start with this setting if current level is unknown.
• Attach red lead to “
A” input.
• Select AC or DC current source.
3. AC / DC Current (small): < 400mA
Features:
ºF º
REL HOLD MAX/MINRANGE
C
m
PRESS
m
• Attach red lead to “mAµA” input.
• Select µA or mA, and AC or DC current source.
4. Resistance / Diode / Continuity
Duty
m
COM
TO SELECT
Resistance
Diode
Continuity
Resistance Features:
HOLD RANGE
•
Do not measure resistance
on a live circuit.
<
•
Ω
40M
m
COM
Diode Features:
MAX/MIN
HOLD
Display shows:
• Forward voltage drop if forward biased.
• “O.L.” if reverse biased.
m
COM
Continuity Features:
HOLD
MAX/MIN
Display shows: Resistance
• Buzzer sounds if less than 30
5. Capacitance: < 4000µF
Duty
HOLD
ºF º
C
Duty
ºF º
C
m
m
COM
Features:
Ω
m
COM
COM
m
m
MAX/MIN
PRESS
REL
Ω
• Press repeatedly to cycle through manual ranges.
• Press for 2 seconds to return to auto ranging mode.
•
AT is displayed on LCD only during auto ranging mode.
• Safely discharge capacitor before measurement.
• Reading may take up to 60 seconds for large capacitors.