Klein Tools MM600 User manual

INSTRUCTION MANUAL
ENGLISH
MM600
Auto-Ranging
Digital Multimeter
Digital Multimeter
1000V
10A
40M
Ω
• DATA & RANGE HOLD
• AUDIBLE CONTINUITY
• MIN / MAX / RELATIVE
• TEMPERATURE
• DIODE TEST
• CAPACITANCE &
FREQUENCY

2
GENERAL SPECIFICATIONS
Klein Tools MM600 is an automatically ranging digital multimeter that
measures AC/DC voltage, AC/DC current, and resistance. It can also
measure temperature, capacitance, frequency, duty-cycle, test diodes
and continuity.
• Operating Altitude: 6562 ft. (2000m)
• Relative Humidity: <90% non-condensing
• Operating Temp: 14°F to 122°F (-10°C to 50°C)
• Storage Temp: -4°F to 140°F (-30°C to 60°C)
• Accuracy: Values stated at 65°F to 83°F (18°C to 28°C)
• Temp Coefcient: 0.1 x (Quoted Accuracy) per °C above
28°C or below 18°C, corrections are required when ambient
working temp is outside of Accuracy Temp range
• Dimensions: 7.02" x 3.54" x 2.10" (178.3 x 89.9 x 53.3 mm)
• Weight: 14.6 oz. (414 g)
• Calibration: Accurate for one year
• Standards: Conforms to: UL STD 61010-1, 61010-2-030,
61010-2-033.
Certified to: CSA STD C22 2 # 61010-1,
61010-2-030, 61010-2-033.
IEC EN 61010-1, 61010-2-030,
61010-2-033, 61326-1.
• Pollution degree: 2
• Accuracy: ± (% of reading + # of least significant digits)
• Drop Protection: 6.6 ft. (2m)
• Ingress Protection: IP42 (except test lead jacks, see WARNINGS)
• Safety Rating: CAT IV 600V, CAT III 1000V, Class 2,
Double insulation
CAT III: Measurement category III is applicable to test and
measuring circuits connected to the distribution part of the
building’s low-voltage MAINS installation.
CAT IV: Measurement category IV is applicable to test and
measuring circuits connected at the source of the building’s
low-voltage MAINS installation.
• Electromagnetic Environment: IEC EN 61326-1. This
equipment meets requirements for use in basic and controlled
electromagnetic environments like residential properties,
business premises, and light-industrial locations.
Specifications subject to change.
ENGLISH
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

3
ELECTRICAL SPECIFICATIONS
VOLTAGE (AUTO-RANGING)
Function Range Resolution Accuracy ( 50–60 Hz )
AC Voltage
(V AC)
4.000V 1mV ±(1.0% + 5 digits)
40.00V 10mV ±(1.2% + 5 digits)
400.0V 100mV ±(1.5% + 5 digits)
1000V 1V
DC Voltage
(V DC)
400.0mV 0.1mV ±(1.0% + 8 digits)
4.000V 1mV
±(1.0% + 3 digits)40.00V 10mV
400.0V 100mV
1000V 1V ±(1.2% + 3 digits)
Input Impedance: 10MΩ
Frequency Range: 50 to 400Hz
Maximum Input: 1000V AC RMS or 1000V DC
CURRENT (AUTO-RANGING)
AC Current
(μA and mA)
400.0μA 0.1μA
±(1.5% + 3 digits)
4000μA 1μA
40.00mA 10μA
400.0mA 100μA
10.00A 0.01A ±(2.0% + 5 digits)
DC Current
(μA and mA)
400.0μA 0.1μA
±(1.0% + 3 digits)
4000μA 1μA
40.00mA 10μA
400.0mA 100μA
10.00A 0.01A ±(1.5% + 3 digits)
Overload Protection: 500mA / 1000V and 10A / 1000V Fuses
Frequency Range: 50 to 400Hz
Maximum Input: µA/mA setting: 400mA AC RMS / DC
10A setting: 10A AC RMS / DC
RESISTANCE (AUTO-RANGING)
Function Resolution Accuracy
400.0Ω 0.1Ω
±(1.5% + 5 digits)
4.000kΩ 1Ω
40.00kΩ 10Ω
400.0kΩ 100Ω
4.000MΩ 1kΩ ±(2.0% + 10 digits)
40.00MΩ 10kΩ
Maximum Input: 600V DC or 600V AC RMS

4
ELECTRICAL SPECIFICATIONS
CAPACITANCE (AUTO-RANGING)
Range Resolution Accuracy
40.00nF 10pF ±(5.0% + 35 digits)
400.0nF 0.1nF
±(3.0% + 5 digits)
4.000μF 1nF
40.00μF 10nF
400.0μF 100nF
1000μF 1μF ±(5.0% + 5 digits)
Maximum Input: 600V DC or 600V AC RMS
FREQUENCY (AUTO-RANGING)
9.999Hz 0.001Hz
±(1.0% + 5 digits)
99.99Hz 0.01Hz
999.9Hz 0.1Hz
9.999kHz 1Hz
99.99kHz 10Hz
500.0kHz 100Hz
Sensitivity: >8V RMS
Maximum Input: 600V DC or 600V AC RMS
DUTY CYCLE
1% to 99.9% 0.1% ±(1.2% + 2 digits)
Pulse width: 0.1 – 100ms
Frequency width: 5Hz to 10kHz
Sensitivity: >8V RMS
Maximum Input: 600V DC or 600V AC RMS
TEMPERATURE
0°to 1000°F 0.1°F / 1°F ±(2.0% + 9°F)
-18° to 538°C 0.1°C / 1°C ±(2.0% + 5°C)
ENGLISH
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

5
ELECTRICAL SPECIFICATIONS
OTHER MEASUREMENT APPLICATIONS
Maximum Input: 600V DC or 600V AC RMS
• Diode Test: 1.5 mA max, open circuit voltage 3.0V DC
• Continuity Check: Audible signal when resistance <50Ω,
max test current 0.35mA
• Auto Power off: After ~30 minutes of inactivity
• Sampling Frequency: 3 samples per second
• Overload: "OL" indicated on display, 1000V RMS in voltage
settings, 600V RMS in all other settings
• Polarity: "-" on display indicates negative polarity
• Display: 3 ¾ digit, 4000 Count LCD
WARNINGS
To ensure safe operation and service of the meter, 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.
• Use only with CAT IV rated test leads.
• 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 25V AC RMS
or 60V DC. Such voltages pose a shock hazard.
• To avoid false readings that can lead to electrical shock,
replace batteries when a low battery indicator appears.
• Do not attempt to measure resistance or continuity on a live
circuit.
• Always adhere to local and national safety codes. Use personal
protective equipment to prevent shock and arc blast injury
where hazardous live conductors are exposed.
• Meter is IP42 dust & water resistant. Following any contact
with water, thoroughly dry meter and test lead jacks prior to
subsequent use.

6
SYMBOLS ON METER
AC/DC Voltage or Current Resistance (in Ohms)
Audible Continuity Diode
Capacitance
Hz
Frequency
%
Duty-cycle Double Insulated Class II
Warning or Caution Risk of Electrical Shock
Fuse (with rating below symbol)
Warning or Caution
To ensure safe operation and service of this meter, follow all warnings
and instructions detailed in this manual.
Risk of Electrical Shock
Improper use of this meter can lead to risk of electrical shock. Follow
all warnings and instructions detailed in this manual.
ENGLISH
SYMBOLS ON LCD
H
Data Hold Audible Continuity
Diode Auto Ranging
AC (Alternating Current) DC (Direct Current)
Low Battery Auto Power Off
MAX Maximum Value MIN Minimum Value
°F Degrees Fahrenheit °C Degrees Celsius
M Mega (value x 10
6
) k kilo (value x 10
3
)
m mili (value x 10
-3
) μ micro (value x 10
-6
)
n nano (value x 10
-9
) V Volts
A Amps F Farads
Ohms Hz Hertz (Frequency)
% Duty-Cycle REL Relative Mode
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

7
FEATURE DETAILS
1
8
11
10
7 9
2
3 5
46
1. 4000 count LCD display 7. "RANGE" button
2. Function selector switch 8. "REL" (Relative) button
3. "10A" jack 9. "MAX/MIN" button
4. "COM" jack 10. "HOLD" button
5. "VΩ" jack 11. "SEL" (Select) button
6. mA / µA jack
NOTE: There are no user-serviceable parts inside meter.

8
FUNCTION BUTTONS
ON/OFF
To Power ON the meter rotate the Function Selector switch
2
from
the OFF setting to any measurement setting. To Power OFF the meter
rotate the Function Selector switch
2
to the OFF setting. By default,
the meter will automatically Power OFF after 30 minutes of inactivity.
Reactivate meter by pressing any button. To deactivate the automatic
Power OFF feature, power the meter ON with the SEL button
11
depressed. When automatic Power OFF is deactivated, the
symbol will not be visible in the display.
When the Function Selector switch is rotated to a measurement
setting, "LEAD" flashes on the display as a reminder to check that test
leads are inserted into the appropriate jacks.
"SEL" (SELECT) BUTTON (FOR SECONDARY FUNCTIONS)
The "SEL" button
11
activates the secondary functions for each
setting accessible by the Function Selector switch
2
. For current
and voltage, it toggles between AC and DC. For the other functions,
it switches between °F and °C, between Hz and % Duty-cycle,
and between Continuity, Resistance, and Diode-test. The default
function for each application is printed on the meter in white; the
secondary functions are printed on the meter in orange.
"HOLD" (DATA HOLD / BACKLIGHT) BUTTON
Press HOLD
10
to hold the measurement on the display. Press
again to release the display to return to live measuring.
Press and hold the "HOLD" button
10
for more than one second to
turn on or off the backlight. The backlight will automatically Power
OFF following three minutes of inactivity to conserve battery life.
"RANGE" BUTTON
The meter defaults to auto-ranging measurement mode . This
automatically determines the most appropriate measurement range
for the testing that is being conducted. To manually force the meter
to measure in a different range, use the "RANGE" button
7
.
1. Press the "RANGE" button
7
to manually select measurement
range ( is deactivated on the LCD). Repeatedly press
the "RANGE" button
7
to cycle through the available ranges,
stopping once the desired range is reached.
2. To return to auto-ranging mode, press and hold the "RANGE"
button
7
for more than one second ( is reactivated).
ENGLISH

9
FUNCTION BUTTONS
"REL" (RELATIVE) BUTTON
Relative measurements are available for Voltage, Current,
Resistance, Temperature and Capacitance.
1. Perform first measurement.
2. With test leads connected, press REL
8
to set frame of reference.
3. Perform second measurement. The value displayed is the
difference between first and second measurements.
"MAX/MIN" BUTTON
When the "MAX/MIN" button
9
is pressed, the meter keeps track
of the minimum and maximum value of the measurement as the
meter continues to take samples.
1. When measuring, press MAX/MIN
9
and the meter displays the
maximum value. If a new maximum occurs, the display updates
with that new value. Pressing again reveals the minimum value.
If a new minimum occurs, the display updates with the new
value.
2. Press MAX/MIN
9
and hold for more than one second to return
to normal measuring mode.
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

10
ENGLISH
OPERATING INSTRUCTIONS
CONNECTING TEST LEADS
Do not test if leads are improperly seated. Results could cause
intermittent display readings. To ensure proper connection, firmly
press leads into the input jack completely.
TESTING IN CAT III / CAT IV MEASUREMENT LOCATIONS
Ensure the test lead shield is pressed firmly in place. Failure to use
the CAT III / CAT IV shield increases arc-flash risk.
TESTING IN CAT II MEASUREMENT LOCATIONS
CAT III / CAT IV shields may be removed for CAT II locations. This
will allow testing on recessed conductors such as standard wall
outlets. Take care not to lose the shields.
5/32"
(4 mm)
.7" (18 mm)
INCORRECT
CORRECT

11
OPERATING INSTRUCTIONS
AC/DC VOLTAGE (LESS THAN 1000V)
1. Insert RED test lead into VΩ jack
5
, and BLACK test lead into
COM jack
4
, and rotate function selector switch
2
the V
setting.
NOTE: The meter defaults to AC measurement. Press the "SEL"
button
11
to toggle between AC and DC modes. The AC or DC icon
on the LCD indicates which mode is selected.
2. Apply test leads to the circuit to be tested to measure voltage.
The meter will auto-range to display the measurement in the
most appropriate range.
NOTE: If "–" appears on the LCD, the test leads are being applied
to the circuit in reverse polarity. Swap the position of the leads to
correct this.
NOTE: When in a voltage setting and the test leads are open,
readings of order mV may appear on the display. This is noise and
is normal. By touching the test leads together to close the circuit
the meter will measure zero volts.
AC/DC CURRENT
NOTE: The meter defaults to AC measurement. To measure DC, press
the "SEL" button
11
to toggle between AC and DC modes. The AC
DC icon on the LCD indicates which mode is selected.
1. Attach test leads to the appropriate jacks and rotate function
selector switch
2
to the appropriate setting as follows:
Red leadBlack lead

12
OPERATING INSTRUCTIONS
ENGLISH
• For AC/DC currents >400mA and <10A: Insert RED test lead into
10A jack
3
, and BLACK test lead into COM jack
4
, and rotate
function selector switch
2
to the 10A AC/DC setting.
• For mA AC/DC currents <400mA: Insert RED test lead into
mA/µA jack
6
, and BLACK test lead into COM jack
4
, and
rotate function selector switch
2
to the mA AC/DC setting.
• For µA DC currents <400µA: Insert RED test lead into
μA/mA jack
6
, and BLACK test lead into COM jack
4
, and
rotate function selector switch
2
to the µA AC/DC setting.
2. To measure current: Remove power from circuit, open circuit at
measurement point, connect meter in-series in the circuit using
the test leads, and apply power to circuit.The meter will auto-
range to display the measurement in the most appropriate range.
Do not attempt to measure more than 10A.
When measuring currents greater than 6A, a measurement
time of 30 seconds followed by 10 minutes of recovery time
is recommended.
Red lead Black lead
Red lead Black lead
Red lead Black lead

13
OPERATING INSTRUCTIONS
CONTINUITY
1. Insert RED test lead into VΩ jack
5
, and BLACK test lead
into COM jack
4
, and rotate function selector switch
2
to the
Continuity/Resistance/Diode setting.
NOTE: The meter defaults to Continuity testing in this mode. Ensure
that the Continuity Testing icon is visible on the display. If not,
press the "SEL" button
11
until the icon appears.
2. Remove power from circuit.
3. Test for continuity by connecting conductor or circuit with test
leads. If resistance is measured less than 50Ω, an audible signal
will sound and display will show a resistance value indicating
continuity. If circuit is open, display will show "OL".
DO NOT attempt to measure continuity on a live circuit.
Red leadBlack lead
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

14
RESISTANCE MEASUREMENTS
1. Insert RED test lead into VΩ jack
5
, and BLACK test lead
into COM jack
4
, and rotate function selector switch
2
to the
Continuity/Resistance/Diode setting.
NOTE: The meter defaults to Continuity testing in this mode. To
enter Resistance testing mode, press the "SEL" button
11
once.
The Resistance icon will appear on the display.
2. Remove power from circuit.
3. Measure resistance by connecting test leads to circuit. The
meter will auto-range to display the measurement in the most
appropriate range.
NOTE: When in a Resistance setting and the test leads are open
(not connected across a resistor), or when a failed resistor is under
test, the display will indicate O.L. This is normal.
DO NOT attempt to measure resistance on a live circuit.
ENGLISH
OPERATING INSTRUCTIONS
DIODE TEST
1. Insert RED test lead into VΩ jack
5
, and BLACK test lead
into COM jack
4
, and rotate function selector switch
2
to the
Continuity/Resistance/Diode setting.
NOTE: The meter defaults to Continuity testing in this mode. To
enter Diode testing mode, press the "SEL" button
11
twice. The
Diode icon will appear on the display.
2. Touch test leads to diode. A reading of 200-700mV on display
indicates forward bias, "OL" indicates reverse bias. An open
device will show "OL" in both polarities. A shorted device will
show approximately 0mV.
Red leadBlack lead
Red leadBlack lead

15
OPERATING INSTRUCTIONS
CAPACITANCE
1. Insert RED test lead into VΩ jack
5
, and BLACK test lead into
COM jack
4
, and rotate function selector switch
2
to the
Capacitance setting. Display should read 0 nF with leads open.
2. Remove power from circuit.
3. Measure capacitance by connecting test leads across the
capacitor. The meter will auto-range to display the measurement
in the most appropriate range.
FREQUENCY / DUTY-CYCLE
1. Insert RED test lead into VΩ jack
5
and BLACK test lead into
COM jack
4
, and rotate function selector switch
2
to the
Frequency/Duty-Cycle setting.
NOTE: The meter defaults to Frequency testing in this mode. To enter
Duty-Cycle testing mode, press the "SEL" button
11
once. Ensure
that the appropriate icon (either
Hz or % ) appears on the display.
2. Measure by connecting test leads across the circuit.
Red leadBlack lead
Red leadBlack lead

16
ENGLISH
OPERATING INSTRUCTIONS
TEMPERATURE
1. I nsert K-type thermocouple with adapter into the VΩ
5
and COM
4
jacks (observe polarity markings on thermocouple and meter), and
rotate function selector switch
2
to the Temperature setting.
NOTE: The meter defaults to Fahrenheit scale in this mode. To enter
Celsius scale, press the "SEL" button
11
once. Ensure that the
appropriate icon (either
°F or °C ) appears on the display. Default
temperature scale may be changed by powering on the meter with
the "HOLD" button
11
depressed.
2. To measure temperature, make contact between the
thermocouple tip and the object being measured. When
thermocouple tip and object are in thermal equilibrium, the
measurement on the display will stabilize. The meter will auto-
range to display the measurement in the most appropriate range.
Remove thermocouple before switching meter to other
measurement functions.
The thermocouple included with the original purchase
is suitable for temperatures below 356°F / 180°C only. To
measure higher temperatures, a K-type thermocouple
with the appropriate measurement range should be used.
RED
BLACK
K-Type
Thermocouple
with Adapter
Probe
Adapter
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

17
MAINTENANCE
BATTERY REPLACEMENT
When indicator is displayed on LCD, batteries must be replaced.
1. Remove screw from battery/fuse door.
2. Replace 2 x AAA batteries (note proper polarity).
3. Replace battery/fuse door and fasten securely with screw.
FUSE REPLACEMENT
A fuse may blow if more than 500mA is applied to the
μA/mA jack
6
,
or more than 10A is applied to the 10A jack
3
. To access fuses:
1. Remove screw from battery/fuse door.
2. Replace blown fuse(s) with:
μA/mA jack
6
: 500mA/1000V fast-blow (Klein Cat. No. 69035)
10A jack
3
:10A/1000V fast-blow (Klein Cat. No. 69034)
3. Replace battery/fuse door and fasten securely with screw.
T o avoid risk of electric shock, disconnect leads from any voltage
source before removing battery/fuse door.
To avoid risk of electric shock, do not operate meter while
battery/fuse door is removed.
500mA/1000V fast-blow fuse
(Klein Cat. No. 69035) 10A/1000V fast-blow fuse
(Klein Cat. No. 69034)

ENGLISH
CLEANING
Be sure meter is turned off and wipe with a clean, dry lint-free
cloth.
Do not use abrasive cleaners or solvents.
STORAGE
Remove the batteries when meter 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 General Specifications
section, allow the meter to return to normal operating
conditions before using.
DISPOSAL /RECYCLE
Do not place equipment and its accessories in the trash.
Items must be properly disposed of in accordance with local
regulations. Please see www.epa.gov or www.erecycle.org
for additional information.
CUSTOMER SERVICE
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com