Klein Tools Klein Tools CL900 Manual

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ENGLISH

1000V

2000A

60M

INSTRUCTION MANUAL

2000A Digital Clamp Meter

True RMS

Measurement Technology

• NON-CONTACT VOLTAGE TESTING

• INRUSH CURRENT

• LOW IMPEDANCE

• DATA HOLD

• RANGE HOLD

• AUDIBLE CONTINUITY

• DIODE TEST

• CAPACITANCE

• FREQUENCY

CL900

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99 Washington Street Melrose, MA 02176

Phone 781-665-1400 Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

GENERAL SPECIFICATIONS

Klein Tools CL900 is an auto-ranging, true root mean square (TRMS) digital clamp meter that measures AC/DC current via the clamp and measures AC/DC voltage, resistance, continuity, frequency, dutycycle, capacitance, and tests diodes via test-leads. It features a Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages, and has a dedicated mode for capturing Inrush Current.

• Operating Altitude: 6562 ft. (2000m) Relative Humidity: <80% non-condensing

•

Operating Temperature: 32° to 122°F (0° to 50°C) Storage Temperature: 14° to 140°F (-10° to 60°C)

• Accuracy: Values stated at 65° to 83°F (18° 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: 10.4" x 3.9" x 1.7" (265 x 99 x 43 mm)

•

Weight: 18.6 oz. (526 g) including batteries

• Calibration: Accurate for one year Standards: Conforms to UL STD 61010-1, 61010-2-032,

•

61010-2-033.

Certified to CSA STD C22.2 # 61010-1,

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

•

Pollution degree: 2 Accuracy: ± (% of reading + # of least significant digits)

•

IEC EN 61010-1, 61010-2-032,

61010-2-033.

• Drop Protection: 6.6 ft. (2m)

• 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.

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ELECTRICAL SPECIFICATIONS

Function Range Resolution Accuracy (50/60 Hz)

600.0mV 0.1mV ±(1.0% + 8 digits)*

AC Voltage

(V AC)

DC Voltage

(V DC)

Input Impedance: Maximum Input: 1000V AC RMS or 1000V DC

*Accuracy specified from 5% to 100% of the measuring range

AC Current

(A) TRMS

DC Current (A)

AC Frequency Range: 50 to 60Hz , >500mA

>200mA (low current requires use of DC ZERO function)

DC:

AC Current (A)

Inrush

AC Frequency Range: 50 to 60Hz

when auto-ranging >3A detectable (>2A if held in 600A range)

**Accuracy specified assumes AC sine wave

Resistance

Maximum Input: 600V AC RMS or 600V DC

Capacitance

Maximum Input: 600V AC RMS or 600V DC

6.000V 1mV ±(1.0% + 5 digits)

60.00V 10mV

600.0V 0.1V 1000V 1V ±(1.5% + 5 digits)

600.0mV 0.1mV ±(0.9% + 8 digits)

6.000V 1mV

600.0V 0.1V 1000V 1V ±(1.2% + 3 digits)

10MΩ

Frequency Range:

600.0A 0.1A ±(2.0% + 5 digits) 2000A 1A ±(2.5% + 8 digits)

600A 0.1A ±(2.5% + 5 digits)**

2000A 1A ±(3.0% + 8 digits)**

600.0Ω 0.1Ω

6.000KΩ 1Ω

60.00kΩ 10Ω

600.0kΩ 100Ω

6.000MΩ 1kΩ

60.00MΩ 10kΩ ±(2.0% + 10 digits)

60.00nF 10pF ±(5.0% + 35 digits)

600.0nF 0.1nF

6.000µF 1nF

60.00µF 10nF

600.0µF 0.1µF 6000µF 1µF ±(5.0% + 5 digits)

±(1.2% + 5 digits)

±(1.0% + 3 digits)60.00V 10mV

50 to 400Hz

±(1.5% + 5 digits)

±(3.0% + 5 digits)

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ELECTRICAL SPECIFICATIONS

9.999Hz 0.001Hz

99.99Hz 0.01Hz

Frequency

Sensitivity: >8V RMS, Maximum Input: 600V DC or 600V AC RMS

999.9Hz 0.1Hz

9.999kHz 1Hz

99.99kHz 10Hz

500.0kHz 100Hz

±(1.0% + 5 digits)

Duty Cycle

Pulse width: 0.1ms – 100ms Frequency width: 5Hz to 10kHz Sensitivity: >8V RMS Maximum Input: 600V AC RMS or 600V DC

0.1% – 99.9% 0.10%

±(1.2% + 2 digits)

OTHER MEASUREMENT APPLICATIONS

• Diode Test: Max. 1.5mA, open circuit voltage ~ 3.0V DC

• Continuity Check: Audible signal <50Ω, test current <0.35mA

• Sampling Frequency: 3 samples per second

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

Max input: 600V RMS

• Auto Power off: After ~30 minutes of inactivity

• Overload:

1000V RMS in Voltage setting, 600V RMS in all other settings

• Polarity: "-" on display indicates negative polarity

• Non-Contact Voltage Detection:

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

"OL" indicated on display, overload protection

>90V AC

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.

• Do not hold meter above hand & finger guard during use.

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WARNINGS

• 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.

• Usage of this meter in any way other than that specified by the

manufacturer can impair safe operation, resulting in severe injury or death.

• 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

Alternating Current (AC) Direct Current (DC) Amperage

Audible Continuity Diode Test Capacitance Low Impedance Resistance (Ohms) DC Current Zero Function

+ Positive – Negative

Common Ground

COM

Double Insulated Class II Warning or Caution:

meter, follow all warnings and instructions detailed in this manual.

Risk of Electrical Shock:

electrical shock. Follow all warnings and instructions detailed in this manual.

To ensure safe operation and service of this

mproper use of this meter can lead to risk of

Voltage Frequency Duty-Cycle

SYMBOLS ON LCD

AC Measurement DC Measurement Negative Reading Data Hold

AUTO

Auto Ranging Minimum Value Hold Low Battery

MIN

Auto Power Off Audible Continuity Diode Test Inrush Current kilo (value x 103)

Mega (value x 106)

micro (value x 10-6)

Ohms Volts

Frequency (Hertz)

Maximum Value Hold

MAX

mili (value x 10-3)

nano (value x 10-9)

Farads

Amps

Low Impedence

LoZ

Duty Cycle

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FEATURE DETAILS

9 7

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

99 Washington Street Melrose, MA 02176

Phone 781-665-1400 Toll Free 1-800-517-8431

6000 count

LCD display Function

selector switch

Clamp

"COM" jack

"VΩ" jack

Data Hold /

Backlight button

"RANGE" button

"MAX/MIN"

button

SEL (select) /

DC Zero button

INRUSH button

10.

Clamp trigger

11.

(press to open clamp)

Arrow markings

12.

on-contact

13.

Voltage Testing Button

on-contact

14.

Voltage Testing Sensor

on-contact

15.

Voltage Testing LED Indicator

Polarity markings

16.

(for DC current)

Visit us at www.TestEquipmentDepot.com

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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 2 to the OFF setting. By default, the meter will automatically power OFF after aprox. 30 minutes of inactivity. To deactivate the auto power OFF functionality, press and hold the "SEL/DC ZERO" button 9 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 (SELECT) / DC ZERO BUTTON (FOR SECONDARY FUNCTIONS)

The SEL/DC ZERO button 9 activates the secondary function for each application accessible by the function selector switch 2:

• In Current

and Low Impedance modes, it toggles between

AC and DC measurements.

• In Frequency/Duty Cycle

measurements

• In Continuity/Resistance/Diode-Test

through these measurements in order

setting, it toggles between these

setting, it toggles

• In DC current setting, pressing and holding for more than one

second initiates the DC ZERO function. Subsequent DC current measurements automatically subtract the measurement that was present as an offset correction.

The default function for each application is printed on the meter in white, the secondary functions in orange. An icon on the LCD display will indicate which function is active.

DATA HOLD

Press the Data Hold / Backlight button

to hold the measurement

on the display. Press again to release the display to return to live measuring.

BACKLIGHT

Press and hold the Data Hold / Backlight button

for more than

one second to turn ON the backlight. The backlight will automatically power OFF after 3 minutes of inactivity.

RANGE

The meter defaults to auto-ranging mode

AUTO

. 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 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 is reactivated).

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FUNCTION BUTTONS

MAX/MIN

When the "MAX/MIN" button 8 is pressed, the meter keeps track of the Maximum and Minimum values as the meter continues to take samples.

1. When measuring, press "MAX/MIN" button 8 to toggle between

the Maximum value (MAX) and Minimum value (MIN). If a new Maximum or Minimum, the display will update with the new value.

2. Press "MAX/MIN" button 8 for more than one second to return to

normal measuring mode.

INRUSH CURRENT

Rotate the Function Selector switch and

press INRUSH 10 prior to an inrush event to test for inrush

to the Current A

setting

current. While the meter monitors current waiting for the inrush event, "----" will be visible on the display.

NON-CONTACT VOLTAGE TESTING

Press and hold the "NCV" button

to test for AC voltage using the

integrated non-contact voltage tester. Approach the conductor under test leading with the sensing antenna warning signals via the LED indicator

. The meter delivers visual

and audible signals (beeps)

when AC voltage is detected. Release the "NCV" button to exit NCV testing mode.

NOTE: It is not recommended to perform continuity and NCV testing simultaneously, as both tests utilize the same audible signal, making it difficult to resolve which test is responsible for the audible alarm.

NOTE: Only voltages of 90V AC or greater will be detected.

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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.

INCORRECT

CORRECT

TESTING IN CAT III / CAT IV MEASUREMENT LOCATIONS

Ensure the test lead shield is pressed firmly in place. Failure to use the CATIII / CATIV shield increases arc-flash risk.

5/32"

(4 mm)

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.

.7" (18 mm)

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OPERATING INSTRUCTIONS

AC/DC CURRENT (LESS THAN 2000A)

AC Current is measured by pressing the clamp trigger 11 to open the clamp 3 and placing it around a current-carrying wire. When measuring, care should be taken to ensure that the clamp 3 is completely closed with trigger 11 fully released, and that the wire passes perpendicularly through the center of

WIRE

the clamp 3 in line with the arrow markings

To measure current:

1. Rotate the Function Selector switch 2 to the

2. The meter defaults to AC measurement.

Current A

setting

To measure DC, press the "SEL/DC ZERO" button 9 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.

3. Place the clamp

around the wire. When measuring DC current, align the polarity markings

16 on the clamp with the polarity of the wire to avoid negative readings. The current measurement will be shown in the display. The meter will auto-range to display the measurement in the most appropriate range.

To measure inrush current:

1. Rotate the Function Selector switch 2 to the Current A setting. Place the clamp 3 around the wire and press "INRUSH" 10. The Display 1 will show "----". Initiate the Inrush event and the inrush current will be captured and presented in the display. A second press of "INRUSH" 10 will reset the Inrush measurement, "----" will be presented on the display and the meter will wait for the next Inrush event.

2. P

ress and hold

"INRUSH"

10 for more than one second to return to

normal measuring mode.

Disconnect test leads when measuring with the clamp.

NOTE: If non-zero values are displayed prior to measuring in DC current mode, an offset correction may be required to improve accuracy. With meter in DC current mode, press and hold the

"SEL/DC ZERO" button

for more than one second to initiate the DC current ZERO function. Subsequent DC current measurements automatically subtract the measurement that was initially present as an offset correction.

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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 to the AC voltage V or DC voltage V setting. The AC or DC icon on the LCD indicates which setting is selected.

-or-

Black lead Red lead

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. 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.

Do not attempt to measure voltages greater than 1000V

in any Voltage setting.

AC/DC LoZ VOLTAGE (LESS THAN 600V)

1. Insert RED test lead into VΩ jack

COM jack

, and rotate function selector switch 2 to the

AC/DC LoZ voltage setting. measurement.

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

To measure DC, press the "SEL/DC ZERO" button

, and BLACK test lead into

The meter defaults to AC

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

Black lead Red lead

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.

Do not attempt to measure voltages greater than 600V

in LoZ setting.

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OPERATING INSTRUCTIONS

CONTINUITY

1. Insert RED test lead into VΩ jack

COM jack

, and rotate function selector switch 2 to the

Continuity/Resistance/Diode-Test

Black lead Red lead

, and BLACK test lead into

setting.

NOTE: The meter defaults to Continuity testing in this setting. Ensure that the Continuity Testing icon If not, press the "SEL/DC ZERO" button

is visible on the display.

repeatedly until the

icon is shown.

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.

RESISTANCE MEASUREMENTS

1. Insert RED test lead into VΩ jack

COM jack

, and rotate function selector switch 2 to the

Continuity/Resistance/Diode-Test

Black lead Red lead

, and BLACK test lead into

setting.

NOTE: The meter defaults to Continuity testing in this mode. Press the SEL/DC ZERO" button mode. The Resistance icon

once to enter Resistance testing

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.

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OPERATING INSTRUCTIONS

DIODE TEST

1. Insert RED test lead into VΩ jack

COM jack

, and rotate function selector switch 2 to the

Continuity/Resistance/Diode-Test

Black lead Red lead

, and BLACK test lead into

setting.

NOTE: The meter defaults to Continuity testing in this mode. Press the SEL/DC ZERO" button

twice to enter Diode testing mode. The

Diode icon will appear on the display.

2. Touch test leads to diode. A reading of 200-800mV 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

FREQUENCY / DUTY-CYCLE

Insert RED test lead into VΩ jack COM jack

, and rotate function selector switch 2 to the

Frequency/Duty-Cycle

and BLACK test lead into

setting.

Black lead Red lead

NOTE: : The meter defaults to Frequency testing. To test Duty-Cycle, press the "SEL/DC ZERO" button

once. Ensure that the appropriate

icon (either Hz or %) appears on the display.

1. Measure by connecting test leads across the circuit.

99 Washington Street Melrose, MA 02176

Phone 781-665-1400 Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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ENGLISH

OPERATING INSTRUCTIONS

CAPACITANCE

Insert RED test lead into VΩ jack COM jack Capacitance

Remove power from cir

, and rotate function selector switch 2 to the

setting.

Black lead Red lead

cuit.

, and BLACK test lead into

3. Measure capacitance by connecting test leads across the capacitor.

The meter will auto-range to display the measurement in the most appropriate range.

MAINTENANCE

BATTERY REPLACEMENT

When indicator is displayed on LCD, batteries must be replaced.

1. Loosen screw on battery door.

2. Replace 2 x AAA batteries (note proper polarity).

3. Replace battery door and fasten securely with screw.

o 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.

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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.

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NOTES