Klein Tools CAT III Bedienungsanleitung

INSTRUCTION MANUAL

ENGLISH

1000V

10A

60M

• HIGH VISIBILITY

DISPLAY

• DATA HOLD

• LOW IMPEDANCE

• AUDIBLE CONTINUITY

• MIN / MAX / RELATIVE

• TEMPERATURE

• DIODE TEST

• CAPACITANCE &

FREQUENCY

FRANÇAIS p. 37

ESPAÑOL pg. 19

Auto-Ranging

Digital Multimeter

True RMS

Measurement

Technology

MM720

2m IP42

CAT IV

600V

CAT III

1000V

5000573

GENERAL SPECIFICATIONS

Klein Tools MM720 is an automatically ranging true root mean square

(TRMS) 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. It features a high visibility, reverse

contrast LCD display with an optical sensor to automatically optimize

viewability in dark or bright ambient lighting.

• Environment:

Indoor. DO NOT expose to moisture, rain, or snow.

• 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: 6.94" × 3.37" × 1.88" (176.3 × 85.7 × 47.7 mm)

• Weight: 12.2 oz. (345 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.

EC 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 (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

ELECTRICAL SPECIFICATIONS

VOLTAGE (AUTO-RANGING)

Function Range Resolution Accuracy (

50–60 Hz

)

AC Voltage

(V AC)

6.000V 1mV

±(1.0% + 3 digits)60.00V 10mV

600.0V 100mV

1000V 1V ±(1.2% + 5 digits)

DC Voltage

(V DC)

600.0mV 0.1mV

±(0.5% + 5 digits)6.000V 1mV

60.00V 10mV

600.0V 100mV ±(0.8% + 3 digits)

1000V 1V ±(1.0% + 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)

600.0μA 0.1μA

±(1.0% + 5 digits)

6000μA 1μA

60.00mA 10μA

600.0mA 100μA

6.000A 1mA ±(2.0% + 3 digits)

10.00A 0.01A ±(2.0% + 5 digits)

DC Current

(μA and mA)

600.0μA 0.1μA

±(1.0% + 3 digits)

6000μA 1μA

60.00mA 10μA

600.0mA 100μA

6.000A 1mA ±(1.5% + 3 digits)

10.00A 0.01A

Overload Protection: 800mA/1000V and 10A/1000V fuses

Frequency Range: 50 to 400Hz

Maximum Input: µA/mA setting: 600mA AC RMS / DC

10A setting: 10A AC RMS / DC

RESISTANCE (AUTO-RANGING)

Function Resolution Accuracy

600.0Ω 0.1Ω

±(1.2% + 5 digits)

6.000kΩ 1Ω

60.00kΩ 10Ω

600.0kΩ 100Ω

6.000MΩ 1kΩ

60.00MΩ 10kΩ ±(2.0% + 10 digits)

Maximum Input: 600V DC or 600V AC RMS

ELECTRICAL SPECIFICATIONS

CAPACITANCE (AUTO-RANGING)

Range Resolution Accuracy

60.00nF 10pF ±(3.5% + 10 digits)

600.0nF 0.1nF

±(3.0% + 5 digits)

6.000μF 1nF

60.00μF 10nF

600.0μF 100nF

6000μF 1μF ±(3.5% + 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

Voltage Range: 2V to 220V RMS

Maximum Input: 600V DC or 600V AC RMS

DUTY CYCLE

1.0% to 99.9%

0.1% ±(1.2% + 2 digits)

Pulse Width: 0.1 – 100ms

Frequency Width: 5Hz to 10kHz

Voltage Range: 2V to 220V RMS

Maximum Input: 600V DC or 600V AC RMS

TEMPERATURE

-40°to 10°F 1°F ±(1.2% + 7°F)

11° to 1832°F 1°F ±(1.2% + 6°F)

-40° to -12°C 1°C ±(1.2% + 4°C)

-11° to 1000°C 1°C ±(1.2% + 3°C)

ENGLISH

ELECTRICAL SPECIFICATIONS

OTHER MEASUREMENT APPLICATIONS

Maximum Input: 1000V RMS in Voltage setting,

600V DC or 600V AC RMS in all other settings

• Diode Test: 1.5 mA max, open circuit voltage 3.2V DC

• Continuity Check: Audible signal when resistance <50Ω

• Low Impedence (Low Z): Input impedence >3kΩ

Max input 600V RMS

• Auto Power Off: After ~5 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: 3-5/6 digit, 6000 Count Reverse Contrast Display,

TRMS technology

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

AC/DC Voltage or Current Resistance (in Ohms)

Audible Continuity Diode

Capacitance

Frequency

Duty-cycle Double Insulated Class II

Temperature (Fahrenheit / Celsius) Ground

Voltage

Apmerage (Amps)

Backlight mA Microamps

SEL Select Low Impedence

Fuse (with rating below symbol)

Warning or Caution Read Instructions

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

Data Hold Audible Continuity

Diode Auto Ranging

Alternating Current

Direct Current

Low Battery Auto Power Off

MAX

Maximum Value

MIN

Minimum Value

°F

Degrees Fahrenheit

°C

Degrees Celsius

Mega (value x 10

)

kilo (value x 10

)

mili (value x 10

-3

)

micro (value x 10

-6

)

nano (value x 10

-9

)

Volts

Amps

Farads

Ohms

Hertz (Frequency)

Duty-Cycle

REL

Relative Mode

Backlight Adjustment

LoZ

Low Impedence

Hazardous Voltage

FEATURE DETAILS

7 9

3 5

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

1. 6000 count Reverse Contrast Display 7. "RANGE" button

2. Function selector switch 8. "REL" (Relative) button

3. "10A" jack 9. "MAX/MIN" button

4. "COM" jack 10. "HOLD"/Backlight button

5. "VΩ" jack 11. "SEL" (Select) button

6. "mA/µA" jack 12. Optical Sensor

FUNCTION BUTTONS

ON/OFF

To Power ON the meter rotate the Function Selector switch

from

the OFF setting to any measurement setting. To Power OFF the meter

rotate the Function Selector switch

to the OFF setting. By default

the meter will automatically Power OFF after 5 minutes of inactivity.

Reactivate meter by pressing any button. To deactivate the automatic

Power OFF feature, power the meter ON with the SEL button

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

activates the secondary functions for each

setting accessible by the Function Selector switch

. For Current,

Voltage and Low Z, it toggles between AC and DC. For the other

functions, it switches between Continuity, Resistance, Diode-test,

and Capacitance. 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

to hold the measurement on the display. Press

again to release the display to return to live measuring.

Press and hold the "HOLD" button

for more than one second

second to manually adjust the backlight. Meter default is automatic

control of backlight based upon an optical sensor. The long presses

will scroll between high backlight, low backlight, and back to

automatic control. In automatic backlight mode, the "A" and

icons will be displayed. For manual backlight mode, the "M" and

icons will be displayed

"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

1. Press the "RANGE" button

to manually select measurement

range ( is deactivated on the LCD). Repeatedly press

the "RANGE" button

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

for more than one second ( is reactivated).

ENGLISH

FUNCTION BUTTONS

"REL" (RELATIVE) BUTTON

Relative measurements are available for Voltage, Current,

Resistance, Temperature, Capacitance and LoZ.

1. Perform first measurement.

2. With test leads connected, press REL

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

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

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

and hold for more than one second to return

to normal measuring mode.

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.

INCORRECT

CORRECT

0.7" (18 mm)

5/32"

(4 mm)

5/32

(4 mm)

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