KLEIN TOOLS CL220 400A AC Auto-Ranging Digital Clamp Meter True RMS Instruction Manual

CL220INSTRUCTION MANUAL400A AC Auto-RangingDigital Clamp Meter

True RMSMeasurementTechnology

• NON-CONTACTVOLTAGE TESTING• AUTO-RANGING• DATA HOLD • RANGE HOLD• TEMPERATURE• AUDIBLE CONTINUITY

600V400A∼20MΩ

2m

GENERAL SPECIFICATIONS

Klein Tools CL220 is an automatically ranging, true root-mean-square (TRMS) digital clamp meter that measures AC current viaclamp, AC/DC voltage, resistance and continuity 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 Coefficient: 0.1 x (Quoted Accuracy) per °C above28°C or below 18°C, corrections are required when ambientworking temp is outside of Accuracy Temp range
  • Dimensions: 8.46″ x 3.54″ x 1.50″ (215 x 90 x 38 mm)
  • Weight: 11.04 oz. (313 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: 6.6 ft. (2m)
  • Safety Rating: CATIII 600V, Class 2, Double insulation
  • 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 are subject to change.

ELECTRICAL SPECIFICATIONS

Function Range Resolution Accuracy
AC Voltage

(V AC)

 200.0mV 0.1mV ±(2.5% + 10 digits)
2.000V 1mV
20.00V 10mV ±(2.0% + 5 digits)
200.0V 100mV
600V 1V
DC Voltage (V DC) ±(1.0% + 8 digits)
200.0mV 0.1mV ±(1.0% + 3 digits)
2.000V 0.1mV
20.00V 10mV ±(1.0% + 3 digits)
200.0V 100mV
600V 1V

Input Impedance: 10MΩFrequency Range: 45 to 400HzMaximum Input: 600V AC RMS or 600V DC

 

AC Current(A AC)

 

 2.000A 1 mA ±(2.5% + 30 digits)
20.00A 10mA  

±(2.0% + 10 digits)

 
200.0A 100mA
400A 1A

Frequency Range: 50 to 60Hz

Resistance 200.0Ω 0.1Ω ±(1.2% + 5 digits)
2.000KΩ 1Ω ±(1.2% + 3 digits)
20.00kΩ 10Ω
200.0kΩ 100Ω
2.000MΩ 1kΩ ±(2.0% + 5 digits)
20.00MΩ 10kΩ

Maximum Input: 600V AC RMS or 600V DC

Temperature°F -40° to 10°F 1°F ±(1.2% + 7 digits)
11° to 1832°F ±(1.2% + 6 digits)
Temperature°C -40° to -12°C 1°F ±(1.2% + 4 digits)
-11° to -1000°C ±(1.2% + 3 digits)

OTHER MEASUREMENT APPLICATIONS

Maximum Input: 600V AC RMS or 600V 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 ½ digits, 2000 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 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.
  • 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 toΩ the local and national safety codes. Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.

SYMBOLS ON METER

∼AC (Alternating Current)ΩResistance (in Ohms)Double Insulated Class IIWarning or Caution V Voltage (Volts) COM CommonBacklight +Positive DC (Direct Current)Audible ContinuityGroundRisk of Electrical ShockAAmperage (Amps)NCVNon-Contact Voltage Tester SELSelect - Negative

SYMBOLS ON LCD

 AC AC (Alternating Current) - Negative ReadingAUTO Auto RangingLow BatteryM Mega (value x 106)m milli (value x 10-3)A AmpsNCV Non-Contact Voltage TesterHazardous Voltage Indicator DC DC (Direct Current)H Data HoldMAX Maximum Value HoldAudible ContinuityK kilo (value x 103)V VoltsΩOhmsAuto Power-Off

FEATURE DETAILS

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

1. 2000 count LCD display2. Function selector switch3. Clamp4. “COM” jack5. “VΩ” jack6. Backlight button7. “RANGE” button 8. “MAX” (Maximum) button9. Data Hold button10. Clamp trigger11. Arrow markings12. “SEL/NCV” button13. NCV Light14. NCV Sensing Antenna

FUNCTION BUTTONS

ON/OFFTo 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. The AutoPower Off icons will be visible in the display. By default, the meterwill 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 2 switch to OFF, then power ON the meter. To deactivate Auto-Power OFF functionality press and hold the “SEL/NCV” button 12 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 12 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 14 . In the presence ofAC voltage, the red NCV light 13 will illuminate and 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.

BACKLIGHTPress Backlight button symbol 6 to turn ON or OFF the backlight.The backlight does not automatically power OFF.

RANGEThe 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 tomeasure 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 two seconds (is reactivated).

MAXWhen the “MAX” button 8 is pressed, the meter keeps track of the Maximum value as the meter continues to take samples.

  1. When measuring, press “MAX” button 8 to display the maximum value. If a new maximum occurs, the display updates with that new value.
  2. Press the “MAX” button 8 again to return to normal measuring mode.

DATA HOLDPress the Data Hold button 9 to hold the current measurement on the display. Press again to return to live measuring mode.

OPERATING INSTRUCTIONS

CONNECTING TEST LEADSDo 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 LOCATIONSEnsure 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 LOCATIONSCAT 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.

AC CURRENT (LESS THAN 400A)AC Current is measured by pressing the clamp trigger 10 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 10 fully released, and that the wire passes perpendicularly through the center of the clamp in line with the arrow markings 11 .

To measure current:

  1. Rotate the Function Selector switch 2 to the 200/400 A setting.
  2. Place clamp around wire. The current measurement will be shown in the display.NOTE: If the measurement is less than 20A, rotate the Function Selector switch 2 to the 2/20 A setting for improved resolution.

Disconnect test leads when measuring with the clamp.

AC/DC VOLTAGE (LESS THAN 600V)

  1.  Insert RED test lead into VΩ jack 5 , and BLACK test lead into the COM jack 4 , and rotate function selector switch 2 to the DCVoltage Vor AC Voltage V∼setting. Note “DC” or “AC” on the display.
  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. 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.NOTE: To access mV range for V ∼AC the “RANGE” button 7must be used.NOTE: When voltages in excess of 25V AC or 60V DC are measured, the Hazardous Voltage Indicator will appear on the display.

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 ResistanceΩ setting. The resistance symbolΩ 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.

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 setting.
  2. Remove power from circuit.
  3. Test for continuity by connecting conductor or circuit with test leads. If resistance is measured less than 10Ω, 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.

TEMPERATURE

  1. Insert K-type thermocouple 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 model. To enter Celsius scale, press the “SELECT” button 12 once. Ensure that the appropriate icon (either °F or °C) appears on the display.
  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.

Remove thermocouple before switching meter to other measurement functions.The thermocouple included with the original purchase is suitable for temperatures below 446°F / 230°C only. To measure higher temperatures, a K-type thermocouple with the appropriate measurement range should be used

MAINTENANCE

BATTERY REPLACEMENTWhen indicator is displayed on LCD, batteries must be replaced.

  1. Loosen captive screw and remove battery cover.
  2. Replace 3 x AAA batteries (note proper polarity).
  3. Replace battery cover and fasten screw securely.Replace battery cover and fasten screw securely.

To avoid the risk of electric shock, disconnect leads from any voltage source before removing battery door.To avoid the risk of electric shock, do not operate the meter while the battery 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

www.kleintools.com/warranty

DISPOSAL / RECYCLE

Do not place equipment and its accessories in the trash.Items must be properly disposed of in accordance with localregulations. Please see www.epa.gov or www.erecycle.org for additional information.

CUSTOMER SERVICE

KLEIN TOOLS, INC.450 Bond StreetLincolnshire, IL 600691-877-775-5346[email protected]www.kleintools.com

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