Klein Tools CL120 Manual de usuario
INSTRUCTION MANUAL
600V
400A
20M
Ω
400A AC Auto-Ranging
Digital Clamp Meter
INSTRUCTION MANUAL
400A AC Auto-Ranging
Digital Clamp Meter
400A AC Auto-Ranging
Digital Clamp Meter
• NON-CONTACT
VOLTAGE TESTING
• AUTO-RANGING
• DATA HOLD
• RANGE HOLD
• AUDIBLE
CONTINUITY
ENGLISH
CL120
2m
CAT III
600V
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GENERAL SPECIFICATIONS
Klein Tools CL120 is an automatically ranging digital clamp-meter
that measures AC current via the clamp, and AC/DC voltage,
resistance and continuity via test-leads.
• Operating Altitude: 6562 ft. (2000 m)
• 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 Coefcient: 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: 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 subject to change.
ENGLISH
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ELECTRICAL SPECIFICATIONS
Function Range Resolution Accuracy
AC Voltage
(V AC)
200.0mV 0.1mV ±(2.5% + 10 digits)
2.000V 1mV
±(2.0% + 5 digits)
20.00V 10mV
200.0V 100mV
600V 1V
DC Voltage
(V DC)
200.0mV 0.1mV ±(1.0% + 8 digits)
2.000V 1mV
±(1.0% + 3 digits)
20.00V 10mV
200.0V 100mV
600V 1V
Input Impedance: 10MΩ
Frequency Range: 45 to 400Hz
Maximum Input: 600V AC RMS or 600V DC
AC Current
(A AC)
2.000A 1mA ±(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
20.00MΩ 10kΩ ±(2.0% + 5 digits)
Maximum Input: 600V AC RMS or 600V DC
OTHER MEASUREMENT APPLICATIONS
Maximum Input: 600V DC or 600V AC RMS
•Continuity Check: Audible signal <10Ω, max current 1.5mA
•Sampling Frequency: Approx. 3 samples per second
•Overload: "OL" indicated on display
•Polarity: "-" on display indicates negative polarity
•Display: 3 ½ digit, 2000 Count LCD
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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.
• 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.
SYMBOLS ON METER
AC (Alternating Current) DC (Direct Current)
Resistance (in Ohms) Audible Continuity
Double Insulated Class II Ground
Warning or Caution
Risk of Electrical Shock
VVoltage (Volts) A Amperage (Amps)
COM Common NCV Non-Contact Voltage Tester
Backlight SEL Select
+Positive –Negative
SYMBOLS ON LCD
AC AC (Alternating Current) DC DC (Direct Current)
Negative Reading
H
Data Hold
Auto Ranging MAX Maximum Value Hold
Low Battery Audible Continuity
M
Mega (value x 10
6
)
k
kilo (value x 10
3
)
m
milli (value x 10
-3
)
V
Volts
A
Amps Ohms
NCV
Non-Contact Voltage Tester Auto Power-Off
Hazardous Voltage Indicator
ENGLISH
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FEATURE DETAILS
1
6
2
9
3
10
14
5
8
7
4
NOTE: There are no user-serviceable parts inside meter.
1. 2000 count LCD display 8. "MAX" (Maximum) button
2. Function selector switch 9. Data Hold button
3. Clamp 10.
Clamp trigger
4. "COM" jack 11. Arrow markings
5. "VΩ" jack 12. NCV Button
6. Backlight button 13. NCV Light
7. "RANGE" button 14. NCV Sensing Antenna
11
12
13
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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. The Auto-
Power Off icon will be visible in the display. 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
2
switch
to OFF, then power ON the meter. To deactivate Auto-Power OFF
functionality press and hold the "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.
BACKLIGHT
Press Backlight button symbol
6
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
7
.
1. Press the "RANGE" button
7
to manually select measurement
range ( 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).
MAX
When 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 "MAX" button
8
again to return to normal measuring mode.
DATA HOLD
Press the Data Hold button
9
to hold the current measurement on
the display. Press again to return to live measuring mode.
NCV
Press and hold the "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 of
AC voltage, the red NCV light
13
will illuminate and audible signals
(beeps) will sound.
As the NCV sensing antenna
13
approaches
the voltage source, the frequency of the audible sound will increase.
Release the "NCV" button to exit NCV testing mode.
NOTE: Only voltages of 40V AC or greater will be detected.
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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ENGLISH
OPERATING INSTRUCTIONS
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.
WIRE
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OPERATING INSTRUCTIONS
AC/DC VOLTAGE (LESS THAN 600V)
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
DC Voltage or AC Voltage 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
7
must be used.
NOTE: When voltages in excess of 25V AC or 60V DC are
measured, the Hazardous Voltage Indicator will appear on the
display.
OR
Red leadBlack lead
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ENGLISH
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 Resistance
setting. The resistance symbol 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.
Red leadBlack lead
Red leadBlack lead
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