Klein Tools CL440 User manual

INSTRUCTION MANUAL

ENGLISH

FRANÇAIS pg. 37

ESPAÑOL pg. 19

HVAC Clamp Meter

True RMS

Measurement

Technology

750V

600V

600A

60M

• MICROAMP DC

• INRUSH CURRENT

• NON-CONTACT

VOLTAGE TESTING

• AUTO-RANGING

• TEMPERATURE

• AUDIBLE CONTINUITY

5001748

-328° –

2462°F

-200° –

1350°C

CL440

CAT IV

600V

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GENERAL SPECIFICATIONS

Klein Tools CL440 is an automatically ranging true root mean

square (TRMS) digital clamp meter that measures AC current and

inrush via the clamp, AC/DC voltage, DC microamps, resistance,

continuity, frequency, capacitance, and tests diodes via test-leads, and

temperature via a thermocouple probe.

• Operating Altitude: 6562 ft. (2000m)

• Relative Humidity: <95% non-condensing

• Operating Temp: 32°to 122°F (0°to 50°C)

• Storage Temp: 14°to 122°F (-10°to 50°C)

• Accuracy: Values stated at 65° to 83°F (18° to 28°C)

• Temp Coefcient: 0.1 × (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: 10.04" × 3.77" × 1.57" (255 × 96 × 40 mm)

• Weight: 14.22 oz (403 g) including batteries

• Calibration: Accurate for one year

• Auto Power-Off (APO): After approx. 10 minutes of inactivity

• Standards: IEC EN 61010-1, 61010-2-032, 61010-2-033.

IEC EN 61326-1, 61326-2-2.

Conforms to UL STD.61010-1,

61010-2-032,61010-2-033;

Certified to CSA STD.C22.2 NO. 61010-1,

61010-2-032,61010-2-033.

• Pollution degree: 2

• Accuracy: ± (% of reading + # of least significant digits)

• Drop Protection: 3.3 ft. (1m)

• Safety Rating: CAT IV 600V

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

5001748

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ELECTRICAL SPECIFICATIONS

Function Range Resolution Accuracy

AC Voltage

(V AC)

600.0mV 0.1mV ±(1.8% + 5 digits)

6.000V 1mV ±(1.5% + 5 digits)

60.00V 10mV ±(1.2% + 5 digits)

600.0V 100mV

750V 1V ±(1.5% + 5 digits)

DC Voltage

(V DC)

600.0mV 0.1mV ±(1.0% + 8 digits)

6.000V 1mV ±(0.8% + 3 digits)

60.00V 10mV

600.0V 100mV ±(1.0% + 3 digits)

Input Impedance: 10MΩ

Frequency Range: 45 to 400Hz

Maximum Input: 750V AC RMS or 600V DC

AC Current

(A AC)

60.00A 10mA ±(2.5% + 10 digits)

600.0A 100mA ±(2.0% + 10 digits)

Frequency Range: 50 to 60Hz

DC Microamps

(µA DC) 600 μA 0.1 μA ±(1.2% + 5 digits)

Maximum Input: 750V AC RMS or 600V DC

Resistance

600.0Ω 0.1Ω ±(1.2% + 5 digits)

6.000KΩ 1Ω

±(1.2% + 3 digits)

60.00kΩ 10Ω

600.0kΩ 100Ω

6.000MΩ 1kΩ

60.00MΩ 10kΩ ±(2.0% + 5 digits)

Maximum Input: 750V AC RMS or 600V DC

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OTHER MEASUREMENT APPLICATIONS

Maximum Input: 600V DC or 750V AC RMS

• Diode Test: Approx. 1mA, open circuit voltage ~3.0V DC

• Continuity Check: Audible signal <10Ω, max current 1.5mA

• Sampling Frequency: 3 samples per second

• Overload: "OL" indicated on display

• Polarity: "-" on display indicates negative polarity

• Display: 3-5/6 digit, 6000 Count LCD

ELECTRICAL SPECIFICATIONS

Function Range Resolution Accuracy

Capacitance

60.00nF 0.010nF ±(4% + 25 digits)

600.0nF 0.100nF

±(4% + 8 digits)

6.000μF 0.001μF

60.00μF 0.010μF

600.0μF 0.100μF

6.000mF 0.001mF ±(5% + 9 digits)

Maximum Input: 750V AC RMS or 600V DC

Temperature

°F

-328° to 54°F

°F

±(1.5% + 7 digits)

55° to 2462°F

±(1.2% + 6 digits)

Temperature

°C

-200° to 12°C

°C

±(1.5% + 4 digits)

13° to 1350°C

±(1.2% + 3 digits)

Maximum Input: 750V AC RMS or 600V DC

Frequency 10Hz to

60kHz 0.001Hz

to 0.01kHz ±(0.1% + 5 digits)

Duty Cycle

0.1% to 99.9%

(≤10kHz)

0.1% ±1.5%

(Range: 10% – 90%)

Maximum Input: 750V AC RMS or 600V DC

ENGLISH

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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 III or CAT IV rated test leads.

• Ensure meter leads are fully seated, and keep fingers away from the

metal probe contacts when making measurements.

• 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.

• To avoid risk of electric shock, disconnect leads from any voltage source

before removing battery door.

• To avoid risk of electric shock, do not operate meter while battery door is removed.

SYMBOLS ON METER

AC (Alternating Current) AC/DC Current

DC (Direct Current) Resistance (in Ohms)

Double Insulated Class II Audible Continuity

Warning or Caution Ground

Diode Risk of Electrical Shock

Frequency Capacitance

Duty-cycle V Voltage (Volts)

Temperature (Fahrenheit / Celsius) A Amperage (Amps)

COM Common NCV

Non-Contact Voltage Tester

% Duty cycle SEL Select

Backlight Hz Frequency

Positive Negative

SYMBOLS ON LCD

AC AC (Alternating Current) DC DC (Direct Current)

Negative Reading Data Hold

Auto Ranging MAX Maximum Value Hold

MIN Minimum Value Hold Audible Continuity

Low Battery

Degrees (Celsius)

Degrees (Fahrenheit)

kilo (value × 10

)

Mega (value × 10

)

micro (value × 10

-6

)

milli (value × 10

-3

)

Volts (Voltage)

nano (value × 10

-9

) Ohms (Resistance)

Amps (Amperage)

Farads (Capacitance)

Hz%

Frequency/Duty Cycle Auto Power-Off

NCV

Non-Contact Voltage Tester Diode Test

Hazardous Voltage Indicator Inrush

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ENGLISH

FEATURE DETAILS

NOTE: There

are no user-

serviceable parts

inside meter.

1. 6000 count LCD display 10.

Clamp trigger

2. Function selector switch 11. Arrow markings

3. Clamp 12. "SEL/NCV" button

4. "COM" jack 13. NCV Light

5. "VΩµA" jack 14. NCV Sensing Antenna

6. Backlight button 15. K-Type Thermocouple Inputs

7. "RANGE" button 16. Temperature/Voltage input switch

8. "MAX/MIN" button 17. "InRush" Button

9. Data Hold button

NOTE: There

are no user-

serviceable parts

inside meter.

4 5

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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 10 minutes of inactivity.

If the meter automatically powers-OFF while in a measurement

setting, press any button to power the meter ON, or rotate Function

Selector

switch to OFF, then power ON the meter.

To deactivate

the power OFF functionality press and hold the "SELECT" button

before powering ON from the OFF setting. When auto power OFF

is deactivated, the Auto Power Off icon will not be visible in the

display.

SEL / NCV BUTTON (FOR NCV TESTING)

Press and hold the SEL/NCV button

to enter Non-contact Voltage

Testing (NCV) mode to test for presence of AC voltage. The NCV

icon and "EF" will be present on the display. Approach the conductor

under test leading with the sensing antenna

In the presence of AC

voltage, the red NCV light

will flash, audible signals (beeps) will

sound.

Release the SEL/NCV button to exit NCV testing mode.

NOTE: Only voltages of 40V AC or greater will be detected.

BACKLIGHT

Press Backlight button

to turn ON or OFF the backlight. The

backlight does not automatically power OFF.

RANGE

The meter defaults to auto-ranging mode . This mode

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 two seconds ( is reactivated).

MAX/MIN

When the "MAX/MIN" button

is pressed, the meter keeps track of

the Maximum and Minimum values.

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1. When measuring, press "MAX/MIN" button

to toggle between

the Maximum value (MAX), the Minimum value (MIN). If a new

maximum or minimum occurs, the display updates with that new

value.

2. Press "MAX/MIN" button

for more than two seconds to return

to normal measuring mode.

DATA HOLD

Press HOLD

to hold the measurement on the display. Press

HOLD

again to release the display to return to live measuring.

FUNCTION BUTTONS

ENGLISH

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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 MEASUREMENT LOCATIONS

Ensure the test lead shield is pressed firmly in place. Failure to use

the CATIII / CATIV 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

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OPERATING INSTRUCTIONS

AC CURRENT (LESS THAN 600A)

AC Current is measured by pressing the clamp trigger

to open

the clamp and placing it around a current-carrying wire. When

measuring, care should be taken to ensure that the clamp is

completely closed with trigger

fully released, and that the wire

passes perpendicularly through the center of the clamp in line with

the arrow markings

To measure current:

1. Rotate the Function Selector switch

to the A~ setting.

2. Place clamp around wire. The current

measurement will be shown in the display.

Disconnect test leads when

measuring with the clamp.

ENGLISH

Red leadBlack lead

NOTE: Current

measurement can be

made by clamping

around single

conductors, but not

cables containing

both live and neutral

wires. In this case a

line splitter is required,

Klein Cat. No. 69409 is

recommended.

AC/DC VOLTAGE (LESS THAN 600V)

1. Insert RED test lead into VΩµA jack

, and BLACK test lead

into COM jack

, and rotate function selector switch

to the

Vsetting for AC or DC measurements. The meter defaults to

AC measurement. To measure DC, press the "SELECT" button

to toggle between AC and DC modes. The AC or DC icon on

the LCD indicates which mode is selected. Note "AC" or "DC" on

the display.

the arrow markings

WIRE

NOTE:

measurement can be

made by clamping

around single

conductors, but not

cables containing

both live and neutral

wires. In this case a

line splitter is required,

Klein Cat. No. 69409 is

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