Klein Tools CL330 User manual

INSTRUCTION MANUAL
ENGLISH
CL330
400A AC Auto-Ranging
Digital Clamp Meter
True RMS
Measurement
Technology
600V
400A
40M
Ω
• OLED DISPLAY
• AUTO-RANGING
• DATA HOLD
• RANGE HOLD
• TEMPERATURE
• BAR GRAPH

GENERAL SPECIFICATIONS
Klein Tools CL330 is an automatically ranging true root mean square
(TRMS) digital clamp meter that measures AC current via the clamp,
AC/DC voltage, resistance, continuity, frequency, capacitance, and
tests diodes via test-leads, and temperature via a thermocouple probe.
It features a reverse contrast OLED display that optimizes viewability
in dark or bright environments and when viewed at angles far away
from normal to the display.
• 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 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: 8.66" x 3.03" x 1.61" (220 x 77 x 41 mm)
• Weight: 9.88 oz. (280 g) including batteries
• Battery Type: 3 x AAA alkaline
• Battery Life: 20 hours
• Calibration: Accurate for one year
• Standards: Conforms to UL STD. 61010-1,
61010-2-032 and 61010-2-033.
Certified to CSA STD. C22.2, NO. 61010-1,
61010-2-032 and 61010-2-033.
• Pollution degree: 2
• Accuracy: ± (% of reading + # of least significant digits)
• Drop Protection: 3.3 ft. (1m)
• Safety Rating: CATIII 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.
• 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.
ENGLISH
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
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3
ELECTRICAL SPECIFICATIONS
Function Range Resolution Accuracy
AC Voltage
(V AC)
4.000V 1mV ±(1.5% + 5 digits)
40.00V 10mV ±(1.2% + 5 digits)
400.0V 100mV
600V 1V ±(1.5% + 5 digits)
DC Voltage
(V DC)
400.0mV 0.1mV ±(1.0% + 8 digits)
4.000V 1mV
±(0.8% + 3 digits)40.00V 10mV
400.0V 100mV
600V 1V ±(1.0% + 3 digits)
Input Impedance: 10MΩ
Frequency Range: 45 to 400Hz
Maximum Input: 600V AC RMS or 600V DC
AC Current
(A AC)
4.000A 1mA ±(2.5% + 30 digits)
40.00A 10mA ±(2.5% + 10 digits)
400.0A 100mA ±(2.0% + 10 digits)
Frequency Range: 50 to 60Hz
Resistance
400.0Ω 0.1Ω ±(1.2% + 5 digits)
4.000kΩ 1Ω
±(1.2% + 3 digits)
40.00kΩ 10Ω
400.0kΩ 100Ω
4.000MΩ 1kΩ
40.00MΩ 10kΩ ±(2.0% + 5 digits)
Maximum Input: 600V AC RMS or 600V DC

4
OTHER MEASUREMENT APPLICATIONS
Maximum Input: 600V DC or 600V 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
•Auto Power off: After 10 minutes of inactivity.
•Overload: "OL" indicated on display
•Polarity: "-" on display indicates negative polarity
•Display: 3-3/4 digit, 4000 Count, 128 x 64 pixel OLED display
ENGLISH
ELECTRICAL SPECIFICATIONS
Function Range Resolution Accuracy
Capacitance
40.00nF 0.010nF ±(4% + 25 digits)
400.0nF 0.100nF
±(4% + 8 digits)
4.000μF 0.001μF
40.00μF 0.010μF
400.0μF 0.100μF
4.000mF 0.001mF ±(10% + 9 digits)
Maximum Input: 600V AC RMS or 600V DC
Temperature
-40° to 104°F 1 °F ±(2.0% + 8 digits)
>104° to 932°F 1 °F ±(1.6% + 5 digits)
>932° to 1832°F 1 °F ±(2.0% + 2 digits)
-40° to 40°C 1 °C ±(2.0% + 4 digits)
>40° to 500°C 1 °C ±(1.5% + 3 digits)
>500° to 1000°C 1 °C ±(1.5% + 2 digits)
Frequency 10Hz to
1MHz
0.001Hz
to 1kHz ±(0.1% + 5 digits)
Duty Cycle
0.1% to 99.9%
(≤100kHz)
0.1% ±1.5%
(Range: 10% – 90%)
Sensitivity: 250mV and < 20V RMS
Maximum Input: 600V AC or 600V DC RMS
Test Equipment Depot - 800.517.8431
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5
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.
• Do not hold meter above hand & finger guard during use.
• 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.
SYMBOLS ON METER
AC (Alternating Current) AC/DC Voltage
Resistance (in Ohms) Audible Continuity
Double Insulated Class II Ground
Warning or Caution Risk of Electrical Shock
Diode Capacitance
Hz
Frequency
%
Duty-cycle
V Voltage (Volts) A Amperage (Amps)
° F/ ° C
Temperature (Fahrenheit / Celsius)
SYMBOLS ON DISPLAY
AC (Alternating Current) DC (Direct Current)
Negative Reading
H
Data Hold
Auto Auto Ranging MAX Maximum Value
MIN Minimum Value AVG Average Value
APO Auto Power Off Battery Strength Indicator
Audible Continuity Resistance Measurement
° F
Degrees (Fahrenheit)
° C
Degrees (Celsius)
M Mega (value x 10
6
) k kilo (value x 10
3
)
m milli (value x 10
-3
) μ micro (value x 10
-6
)
n nano (value x 10
-9
) V Volts
A Amps Ohms
Hz/% Frequency/Duty Cycle
MAX MIN
Max/Mix/Avg mode active

6
FEATURE DETAILS
1
6
2
3
10
12
13
5
8
7
4
ENGLISH
1. 4000 count OLED display 8. "MAX/MIN" button
2. Function selector switch 9. Data Hold button
3. Clamp 10.
Clamp trigger (press to open clamp)
4. "COM" jack 11. Arrow markings
5. "VΩ" jack 12. "SELECT" button
6. Display brightness button 13. Hand & finger guard
7. "RANGE" button
11
9

7
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. 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 (
6
,
7
,
8
or
9
) to power ON the
meter. To deactivate the power OFF functionality, press the Display
Brightness button
6
for more than one second while the meter is
powered on.
"SELECT" BUTTON (FOR SECONDARY FUNCTIONS)
The "SELECT" button
12
activates the secondary function for each
application accessible by the function selector switch
2
. For voltage,
it toggles between AC and DC. For the other functions, it switches
between °F and °C, between Hz and % Duty-cycle, and between
Continuity, Resistance, Capacitance and Diode-Test. The default
function for each application is printed on the meter in white; the
secondary function or functions for each setting is printed on the
meter in orange.
DISPLAY BRIGHTNESS
The OLED display can be operated at three different brightness levels
(low, medium, high). Press the Display Brightness button
6
to cycle
through and select the desired brightness.
DUAL DISPLAY LINES
The display has a primary and secondary display line. The primary
measurement is always displayed on the primary display line. When
measuring AC voltage, the measurement is displayed on the primary
display line, and the frequency is displayed on the secondary display
line.
NOTE: When measuring at the lower extremes of a voltage
range (less than 10% of the range maximum, or below 100V for the
600V range), it may not be possible to measure frequency, which
may result in dashes on the display. In MAX/MIN mode, the primary
and secondary display lines are utilized as detailed in the MAX/MIN
section.
Secondary display line
Primary display line
Test Equipment Depot - 800.517.8431
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8
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 display). 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).
MAX/MIN
When the "MAX/MIN" button
8
is pressed, the meter keeps track of
the Maximum, Minimum and Average values as the meter continues
to take samples.
1. When measuring, press "MAX/MIN" button
8
to display the
Max value on the primary display line. MAXMIN and Max will
be shown on the display. Pressing "MAX/MIN"
8
will toggle
between the Maximum (Max), the Minimum (Min), and the
Average (Avg) values. The active measurement continually
updates on the secondary display line in this mode. If a new
maximum or minimum occurs, the display updates with that
new value. The average value continues to update as the meter
continues to take samples.
2. Press "MAX/MIN" button
8
for more than one second to return to
normal measuring mode.
DATA HOLD
Press HOLD
9
to hold the measurement on the display. Press
HOLD
9
again to release the display to return to live measuring.
FUNCTION BUTTONS
ENGLISH

9
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 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
Replacement test leads must have a minimum rating of
CATIII 1000V, 10A.

10
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 400 A setting.
2. Place clamp around wire. The current measurement will be shown
in the display.
NOTE: If the measurement is less than 40A, rotate the Function
Selector switch
2
to the 40 A setting for improved resolution. If the
measurement is less than 4A, rotate the Function Selector switch
2
to the 4 A setting for improved resolution.
Disconnect test leads when measuring with the clamp.
OR
WIRE

11
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
Vsetting for AC or DC measurements. The meter defaults to
AC measurement. To measure DC, press the "SELECT" button
12
to toggle between AC and DC modes. The AC or DC icon on
the display indicates which mode is selected. Note or on
the display.
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 display, 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.
Red leadBlack lead
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12
ENGLISH
Red leadBlack lead
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/Resistance/Capacitance/Diode-Test setting.
NOTE: The meter defaults to Continuity testing in this mode. Ensure
that the Continuity Testing icon is visible on the display. If not,
press the "SELECT" button
12
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 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.
OPERATING INSTRUCTIONS

13
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
Continuity/Resistance/Capacitance/Diode-Test setting.
NOTE: The meter defaults to Continuity testing in this mode. Press
the "SELECT" button
12
once to enter Resistance testing mode. The
Resistance icon 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.
Red leadBlack lead

14
ENGLISH
Red leadBlack lead
CAPACITANCE
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/Resistance/Capacitance/Diode-Test setting.
NOTE: The meter defaults to Continuity testing in this mode. Press
the "SELECT" button
12
three times to enter Capacitance testing
mode. The Capacitance icon will appear on the display. The
meter should read 0 nF with test leads open.
2. Remove power from circuit.
3. Measure capacitance by connecting test leads across the
capacitor. The meter will auto-range to display the measurement
in the most appropriate range.
NOTE: When measuring low capacitance (<1nF), the actual
capacitance value is the measured value minus the test lead open
circuit value.
OPERATING INSTRUCTIONS
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15
OPERATING INSTRUCTIONS
FREQUENCY / DUTY-CYCLE
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
Frequency/Duty-Cycle setting.
NOTE: The meter defaults to Frequency testing in this mode. To enter
Duty-Cycle testing mode, press the "SELECT" button
12
once. Ensure
that the appropriate icon (either
Hz or % ) appears on the display.
2. Measure by connecting test leads across the circuit.
Red leadBlack lead
Red leadBlack lead
DIODE TEST
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/Resistance/Capacitance/Diode-Test setting.
NOTE: The meter defaults to Continuity testing in this mode. Press
the "SELECT" button
12
two times 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.

16
ENGLISH
OPERATING INSTRUCTIONS
BAR GRAPH
1. The Bar Graph emulates an analog representation of the
measurement. In any given range the bar graph scales from zero
on the left hand side to the maximum value of the range on the
right hand side of the display.
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 mode. 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.
K-Type
Thermocouple

17
MAINTENANCE
BATTERY REPLACEMENT
When the Battery Strength Indicator shows low battery strength( ),
batteries must be replaced.
1. Remove screw from battery door.
2. Replace 3 x AAA batteries (note proper polarity).
3. Replace battery door and fasten securely with screw.
T 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.
NOTE: There are no user-serviceable parts inside meter.
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ENGLISH
CLEANING
Be sure meter is turned off and wipe with a clean, dry lint-free
cloth.
Do not use abrasive cleaners or solvents.
STORAGE
For everyday storage turn meter off, disconnect test-leads, and
store in the carry case provided for the meter.
NOTE: Storing the meter for any period of time in the carrying
case with the test-leads inserted is not recommended.
If storing for a prolonged period of time it is recommended to
remove the batteries.
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.
ESPAÑOL