Klein Tools MM600 - Multimeter

MM600 - Multimeter Klein Tools - Free user manual and instructions

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Product Type Auto-Ranging Digital Multimeter
Brand Klein Tools
Model MM600
Dimensions 178.3 x 89.9 x 53.3 mm
Weight 414 g
Power Supply 2 AAA batteries (1.5 V)
Display 4000 count digital LCD, backlight
Main Functions AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, temperature (type K), diode test, audible continuity
Measurement Ranges Voltage: 400 mV to 1000 V (AC/DC); Current: 400 µA to 10 A (AC/DC); Resistance: 400 Ω to 40 MΩ; Capacitance: 40 nF to 1000 µF; Frequency: 9.999 Hz to 500 kHz; Temperature: -18°C to 538°C
Basic Accuracy ±(1.0% + 3 digits) for DC voltage
Safety CAT IV 600 V, CAT III 1000 V, double insulation, IP42 rating
Standards UL 61010-1, CSA C22.2, IEC EN 61010, IEC EN 61326-1
Overload Protection Fuses 500 mA/1000 V (µA/mA) and 10 A/1000 V (10A)
Special Features Data hold (HOLD), manual range (RANGE), relative mode (REL), MIN/MAX recording, auto power off (30 min)
Maintenance and Cleaning Clean with a lint-free cloth, no solvent; replace batteries and fuses via rear compartment
Spare Parts and Repairability No user-serviceable parts; replacement fuses available (Part No. 69035 and 69034)
Operating Temperature -10°C to 50°C
Operating Altitude 2000 m
Warranty Visit www.kleintools.com/warranty

Frequently Asked Questions - MM600 Klein Tools

How to measure AC or DC voltage with the MM600?
Insert the red lead into the jack and the black lead into the COM jack. Turn the dial to V. By default, the meter measures AC voltage. Press SEL to toggle between AC and DC. Apply the test probes to the circuit. The display shows the value.
How to change the batteries of the multimeter?
When the low battery symbol appears, turn off the meter and disconnect the test leads. Remove the screw from the battery compartment door. Replace the two AAA batteries respecting polarity. Close the door and tighten the screw.
What does the 'OL' display mean?
OL means 'Over Load'. It indicates the measurement exceeds the selected range or an open circuit (in resistance/diode mode). In voltage mode, it may indicate a voltage too high for the range.
How to use the HOLD function (data hold)?
Press the HOLD button to freeze the displayed value. Press again to return to normal mode. To activate the backlight, press and hold HOLD for more than one second.
How to test continuity of a circuit?
Set the dial to the Continuity/Resistance/Diode setting. By default, continuity mode is active (•)) icon). Insert leads into and COM. Connect the probes to the circuit. If resistance is less than 50 Ω, a beep sounds.
How to measure temperature with the thermocouple?
Insert the type K thermocouple with adapter into the (red) and COM (black) jacks. Turn the dial to °F/°C. By default, the scale is Fahrenheit. Press SEL to switch to Celsius. Touch the object with the probe and wait for stabilization.
How to disable auto power off?
To disable auto power off (Apo), press and hold the SEL button while turning on the meter. The symbol disappears from the display, indicating the function is disabled.
Which replacement fuses to use?
Use a fast-acting 500 mA/1000 V fuse (Klein 69035) for the µA/mA jack, and a 10 A/1000 V fuse (Klein 69034) for the 10A jack. Replace via the battery/fuse compartment.
How to clean the multimeter?
Turn off the meter and wipe it with a clean, lint-free cloth. Do not use abrasive cleaners or solvents. Avoid excessive moisture.
What is the safety category of the MM600?
The MM600 is certified CAT IV 600 V and CAT III 1000 V, with double insulation. It is designed for use on low-voltage installations up to 1000 V in CAT III and 600 V in CAT IV.

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Download the instructions for your Multimeter in PDF format for free! Find your manual MM600 - Klein Tools and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. MM600 by Klein Tools.

USER MANUAL MM600 Klein Tools

For Professionals... Since 1857™

Klein Tools MM600 - 1

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 Coeffi 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, 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.

ELECTRICAL SPECIFICATIONS

VOLTAGE (AUTO-RANGING)

Function Range Resolution Accuracy (50–60 Hz)
AC Voltage(V AC)4.000V 1mV ±(1.0% + 5digits)
40.00V 10mV ±(1.2% + 5digits)
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.
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
40.00kΩ10Ω
400.0kΩ100Ω
4.000MΩ1kΩ±(2.0% + 10 digits)
40.00MΩ10kΩ

Maximum Input: 600V DC or 600V AC RMS

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°C0.1°C / 1°C±(2.0% + 5°C)

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 < 50 , 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 34 digit, 4000 Count LCD

Klein Tools MM600 - OTHER MEASUREMENT APPLICATIONS - 1

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.

SYMBOLS ON METER

Klein Tools MM600 - SYMBOLS ON METER - 1

AC/DC Voltage or Current Resistance (in Ohms)

Klein Tools MM600 - SYMBOLS ON METER - 2

Audible Continuity Diode

Klein Tools MM600 - SYMBOLS ON METER - 3

Klein Tools MM600 - SYMBOLS ON METER - 4

Capacitance

Klein Tools MM600 - SYMBOLS ON METER - 5

Frequency

Klein Tools MM600 - SYMBOLS ON METER - 6

Duty-cycle Double Insulated Class II

Klein Tools MM600 - SYMBOLS ON METER - 7

Risk of Electrical Shock

Klein Tools MM600 - SYMBOLS ON METER - 8

Warning or Caution

Klein Tools MM600 - SYMBOLS ON METER - 9

Klein Tools MM600 - SYMBOLS ON METER - 10

Fuse (with rating below symbol)

Klein Tools MM600 - SYMBOLS ON METER - 11

Warning or Caution

To ensure safe operation and service of this meter, follow all warnings and instructions detailed in this manual.

Klein Tools MM600 - SYMBOLS ON METER - 12

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.

SYMBOLS ON LCD

Klein Tools MM600 - SYMBOLS ON LCD - 1

Data Hold Audible Continuity

Klein Tools MM600 - SYMBOLS ON LCD - 2

Klein Tools MM600 - SYMBOLS ON LCD - 3

Diode Auto Ranging

Klein Tools MM600 - SYMBOLS ON LCD - 4

Klein Tools MM600 - SYMBOLS ON LCD - 5

AC (Alternating Current) DC (Direct Current)

Klein Tools MM600 - SYMBOLS ON LCD - 6

Low Battery Auto Power Off

Klein Tools MM600 - SYMBOLS ON LCD - 7

MAX

Maximum Value

MIN Minimum Value

°F

Degrees Fahrenheit

°C Degrees Celsius

M

Mega (value x 10 ^6 )

k kilo (value x 10³)

m

mili (value x 10 ^-3 )

μ micro (value x 10 ^-6 )

n

nano (value x 10 ^-9 )

V Volts

A

Amps

F Farads

Klein Tools MM600 - SYMBOLS ON LCD - 8

Ohms

Hz Hertz (Frequency)

%

Duty-Cycle

REL Relative Mode

FEATURE DETAILS
Klein Tools MM600 - SYMBOLS ON LCD - 9

text_image KLEIN TOOLS. MM600 MAX MIN H REL °F °C MkΩHz % nμmVAF 8.0.0.0 ~8.0.0.0 TOUGH METER RANGE REL MAX HOLD 10A OFF V μA °C 2 10A +VΩ Hz °S Temp 5 3 4 6 μA MA COM

NOTE: There are no user-serviceable parts inside meter.

  1. 4000 count LCD display
  2. Function selector switch
  3. "10A" jack
  4. "COM" jack
  5. "VΩ" jack
  6. mA / μA jack
  7. "RANGE" button
  8. "REL" (Relative) button
  9. "MAX/MIN" button
  10. "HOLD" button
  11. "SEL" (Select) button

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 AUTO. 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 (AUTO 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 (AUTO activated).

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.

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.

Klein Tools MM600 - CONNECTING TEST LEADS - 1

text_image INCORRECT CORRECT

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.

Klein Tools MM600 - TESTING IN CAT III / CAT IV MEASUREMENT LOCATIONS - 1

text_image 5/32' (4 mm) CAT IV 600V CAT III 1000V 10A ▲ □ CE

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.

Klein Tools MM600 - TESTING IN CAT II MEASUREMENT LOCATIONS - 1

text_image CAT IV 600V CAT II 1000V 7" (18 mm) 10A

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.

Klein Tools MM600 - AC/DC VOLTAGE (LESS THAN 1000V) - 1

text_image 10A μA mA +VΩ -0.5 V -0.5 V +VΩ -0.5 V Temp CAT to HAN CAT to LAM COM

Red leadBlack
Klein Tools MM600 - AC/DC VOLTAGE (LESS THAN 1000V) - 2

text_image SEC 10A OFF V μA +F °C lead +VΩ Hz %
  1. 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:

OPERATING INSTRUCTIONS

- 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.

Klein Tools MM600 - OPERATING INSTRUCTIONS - 1

text_image 10A μA mA +VD No. 5 Temp COM

Red lead

Klein Tools MM600 - OPERATING INSTRUCTIONS - 2

text_image 10A OFF V μA +V +F Hz °C +VQ

Black lead

- 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.

Klein Tools MM600 - OPERATING INSTRUCTIONS - 3

text_image 10A +VΩ - - - Hz % Temp μA mA COM

Red lead Black lead

Klein Tools MM600 - OPERATING INSTRUCTIONS - 4

text_image 10A OFF V A D μA +- Hz °C +VQ

- For A DC currents <400 A: Insert RED test lead into A/mA jack 6, and BLACK test lead into COM jack 4, and rotate function selector switch 2 to the A AC/DC setting.

Klein Tools MM600 - OPERATING INSTRUCTIONS - 5

text_image 10A μA mA COM +VΩ N = 5 Temp

Red lead Black lead

Klein Tools MM600 - OPERATING INSTRUCTIONS - 6

text_image 10A OFF V μA +V +H Hz +V0
  1. 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.

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".

Klein Tools MM600 - CONTINUITY - 1

text_image 10A μA mA COM +VΩ - - - Rt % Temp

Red leadBlack lead
Klein Tools MM600 - CONTINUITY - 2

text_image 10A OFF V A μA +F °C Hz % +VΩ (43)

Klein Tools MM600 - CONTINUITY - 3

DO NOT attempt to measure continuity on a live circuit.

OPERATING INSTRUCTIONS

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 Ω will appear on the display.

  1. Remove power from circuit.
  2. Measure resistance by connecting test leads to circuit. The meter will auto-range to display the measurement in the most appropriate range.

Klein Tools MM600 - RESISTANCE MEASUREMENTS - 1

text_image 10A μA mA +VΩ -0.5V +0.5V +0.5V Temp COM

Red leadBlack lead
Klein Tools MM600 - RESISTANCE MEASUREMENTS - 2

text_image mA 10A OFF V μA +F °C Hz % +VQ clead

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.

Klein Tools MM600 - RESISTANCE MEASUREMENTS - 3

DO NOT attempt to measure resistance on a live circuit.

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 Ω 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.

  1. 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.

Klein Tools MM600 - DIODE TEST - 1

text_image 10A μA mA +VΩ -0.5V -0.5V +0.5V Temp COM

Klein Tools MM600 - DIODE TEST - 2

text_image 10A OFF V μA +F °C Hz +VQ lead

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 ① 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.

Klein Tools MM600 - CAPACITANCE - 1

text_image 10A μA mA +VΩ - - - HV % Temp CAI: 2.5V CAI: 2.5V COM

Red leadBlack
Klein Tools MM600 - CAPACITANCE - 2

text_image 10A OFF V A μA +F °C +VΩ +E Hz %

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 Hz% 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.

  1. Measure by connecting test leads across the circuit.

Klein Tools MM600 - FREQUENCY / DUTY-CYCLE - 1

text_image 10A μA mA COM +VΩ -0.5V +0.5V +0.5V Temp CAT to 400% CAT to 300% COM

Red leadBlack lead
Klein Tools MM600 - FREQUENCY / DUTY-CYCLE - 2

text_image TDA OFF V A μA °F °C +VΩ +E- Hz S +VΩ (P42)

OPERATING INSTRUCTIONS

TEMPERATURE

  1. Insert 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.

  1. 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.

Klein Tools MM600 - TEMPERATURE - 1

text_image Red Black Adapter Probe K-Type Thermocouple with Adapter

Klein Tools MM600 - TEMPERATURE - 2

text_image 10A OFF V μA +F °C +VQ 123

⚠️ 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.

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 A/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.

Klein Tools MM600 - FUSE REPLACEMENT - 1

text_image 500mA/1000V fast-blow fuse (Klein Cat. No. 69035) 10A/1000V fast-blow fuse (Klein Cat. No. 69034)

To 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.

To 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.

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.

WARRANTY

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

KLEIN TOOLS, INC.

450 Bond Street

Lincolnshire, IL 60069

1-877-775-5346

customerservice@kleintools.com

www.kleintools.com

For Professionals... Since 1857™

Klein Tools MM600 - CUSTOMER SERVICE - 1

natural_image Exploded view diagram of a battery pack with two batteries and a battery cover (no text or symbols)

For Professionals... Since 1857™

Klein Tools MM600 - CUSTOMER SERVICE - 2

CARACTÉRISTIQUES GÉNÉRALES

BOUTON HOLD (MAINTIEN DES DONNÉES/RÉTROÉCLAIRAGE)

REPLACEMENT DES PILES

REPLACEMENT DES FUSIBLES

Manual assistant
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Product information

Brand : Klein Tools

Model : MM600

Category : Multimeter