CL320 - Multimeter Klein Tools - Free user manual and instructions

Product Type	Clamp Digital Multimeter
Brand	Klein Tools
Model	CL320
Measurements	AC Current (up to 400 A), AC/DC Voltage (up to 600 V), Resistance (up to 40 MΩ), Capacitance (up to 4000 μF), Temperature (-40°C to 1000°C), Frequency (up to 60 kHz), Diode Test, Continuity, DC μA Current (up to 200 μA)
TRMS Technology	True RMS
Display	4000 count LCD, backlight
Special Features	Non-Contact Voltage Test (NCV), Auto-Ranging, Data Hold (HOLD), Max/Min, Auto-Power Off (10 min)
Power Supply	3 AAA batteries (1.5 V)
Dimensions	215 x 90 x 38 mm
Weight	313 g (with batteries)
Safety	CAT III 600 V, double insulation, Class 2
Operating Temperature	0°C to 50°C
Relative Humidity	< 95% non-condensing
Max Altitude	2000 m
Drop Protection	2 m
Warranty	See www.kleintools.com/warranty
Maintenance and Cleaning	Wipe with a clean, lint-free cloth; do not use abrasive cleaners or solvents. Replace batteries when the low battery indicator appears.
Spare Parts and Reparability	The multimeter contains no user-serviceable parts. For service, contact Klein Tools customer service.
General Information	Compliant with IEC EN 61010-1, 61010-2-032, 61010-2-033, UL 61010-1, CSA C22.2 No. 61010-1. Pollution degree 2.

Frequently Asked Questions - CL320 Klein Tools

How to measure alternating current with the clamp?

Turn the rotary switch to the 40/400 A position. Open the clamp by pressing the trigger and place it around a single conductor. Close the clamp completely and read the value on the screen. For currents below 40 A, select the 4 A position for better resolution.

How to use the non-contact voltage test (NCV)?

Press and hold the SEL/NCV button to activate NCV mode. Bring the antenna (located at the top of the device) close to the conductor to be tested. If an AC voltage of at least 40 V is present, the red LED flashes, an audible signal sounds, and bars appear on the screen.

What to do if the screen displays 'OL'?

OL means 'Over Limit'. This indicates that the measurement exceeds the selected range or the circuit is open (in continuity, resistance). Check that you are using the correct measurement range and that the connections are correct.

How to change the batteries?

First disconnect the test leads from any voltage source. Loosen the screw of the battery compartment, remove the cover, replace the three AAA batteries observing polarity, then close and tighten the screw.

How to disable the auto power-off?

Auto power-off is enabled by default after 10 minutes of inactivity. To disable it, turn off the device (OFF position), then press and hold the SELECT button while turning the rotary switch to a measurement position. The auto power-off icon disappears from the screen.

How to measure temperature?

Connect a type K thermocouple to the COM (black) and VΩμA (red) jacks, respecting polarity. Turn the rotary switch to °F°C. By default, the unit is in °F; press SEL to switch to °C. Place the probe on the object to measure and wait for stabilization.

What is the maximum voltage that the device can measure?

The maximum measurable voltage is 600 V AC or DC. Never exceed this limit to avoid risk of electric shock or damage to the device.

How to measure circuit continuity?

Turn the rotary switch to the Ω (continuity/resistance/capacitance/diode) position. By default, continuity mode is active (sound wave icon). De-energize the circuit, then connect the test leads to the two points to be tested. If the resistance is less than 10 Ω, an audible signal sounds.

How to use MAX/MIN mode?

Press the MAX/MIN button during a measurement. The multimeter records the maximum and minimum values. Press repeatedly to display MAX, MIN, or the difference (MAX-MIN). To exit, press and hold the button for more than two seconds.

What to do if the device does not turn on?

First check that the batteries are properly installed and that they are charged. If the low battery indicator appears, replace the batteries. If the problem persists, contact Klein Tools customer service at 1 800 553-4676.

USER MANUAL CL320 Klein Tools

Measurement Technology

-40°- 1832°F -40°- 1000°C

• NON-CONTACT VOLTAGE TESTING
- AUTO-RANGING
- DATA HOLD
• RANGE HOLD
• TEMPERATURE
• AUDIBLE CONTI NUITY

600V \~

400A \~

40MΩ

2m

TRMS V A Ω mV μA NCV - - F °C AUTO RANGE HOLD + - Hz /- MAX/ MIN APO 4000 LCD

ESPAÑOL pg. 19

FRANÇAIS pg. 37

KLEIN TOOLS®

KLEIN TOOLS CL320 μA 4A~ 40/ 400A~ NCV SEL OFF RANGE MAX MIN 4000 Counts 450A AC Digital Clamp Meter DC AC 8.8.8.8 -6 -6 mpFVA 1kΩHz*4 °C*F True RMS CAT: 000V COM VΩμA 400A TY mV

CE

UK CA

Intertek 5001748

CAT III 600V

GENERAL SPECIFICATIONS

Klein Tools CL320 is an automatically ranging true root mean square (TRMS) digital clamp meter that measures AC current 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 Temp32° 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 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.

ELECTRICAL SPECIFICATIONS

Function Range Resolution Accuracy
AC Voltage (V AC)	400.0mV 0.1mV ±(1.8% + 5 digits)
	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)4C
	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

DC Microamps(μA DC)

200 μA 0.1

1 μA ±(1.0%

+ 5 digits)

Maximum Input: 600V AC RMS or 600V DC

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

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 ±(5% + 9 digits)

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°C	±(1.2% + 4 digits)
	-11° to 1000°C		±(1.2% + 3 digits)

Maximum Input: 600V 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% (≤100kHz)	0.1%	±1.5%(Range: 10% – 90%)

Maximum Input: 600V AC RMS or 600V DC

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 < 10 , max current 1.5mA
• Sampling Frequency: 3 samples per second
  • Overload: "OL" indicated on display
• Polarity: "-" on display indicates negative polarity
  • Display: 3-3/4 digit, 4000 Count LCD

⚠️ WARNINGS - GENERAL

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.

⚠️ WARNINGS - NCV FUNCTION

- When NCV Function is initiated, a blinking or steady red glow and an audible beep indicate voltage present. If no indication, voltage could still be present.

- Before and after each use of the NCVT, verify operation by testing a known working circuit that is within the rating of this unit.

- Never assume neutral or ground wires are de-energized. Neutrals in multi-wire branch circuits may be energized when disconnected and must be retested before handling.

• The NCV tester WILL NOT detect voltage if:

- The wire is shielded.

- The operator is not grounded or is otherwise isolated from an effective earth ground.

- The voltage is DC.

• The NCV tester MAY NOT detect voltage if:

• The user is not holding the tester.

- The user is insulated from the tester with a glove or other materials.

• The wire is partially buried or in a grounded metal conduit.

- The tester is at a distance from the voltage source.

- The field created by the voltage source is blocked, dampened, or otherwise interfered with.

- The frequency of the voltage is not a perfect sine wave between 50 and 500Hz.

- The tester is outside of operation conditions (listed in Specifications section).

- Operation may be affected by differences in socket design and insulation thickness and type; tester may not be compatible with some types of standard or tamper resistant (TR) electrical outlets.

- Do not apply to uninsulated hazardous live conductors.

- Detection above 50V is specified under “normal” conditions as specified below. The tester may detect at a different threshold at different conditions, or may not detect at all unless:

- The tip of the tester is within 0.25" of an AC voltage source radiating unimpeded.

- The user is holding the body of the tester with his or her bare hand.

- The user is standing on or connected to earth ground.

• The air humidity is nominal (50% relative humidity).

- The tester is held still.

SYMBOLS ON METER

~	AC (Alternating Current)	~ AC/DC Current
---	DC (Direct Current) Resistance (in Ohms)
☐	Double Insulated Class II Audible Continuity
!	Warning or Caution	Risk of Electrical Shock
#	Suitable for uninsulated hazardous live conductors
▶	Diode Ground	+
Hz	Frequency Capacitance	+
%	Duty-cycle V Voltage (Volts)
°F/°C	Temperature (Fahrenheit / Celsius) A Amperage (Amps)
COM	Common NCV	Non-Contact Voltage Tester
%	Duty cycle SEL Select
●	Backlight Hz Frequency
+	Capacitance	Diode Test
+	Positive	Negative

SYMBOLS ON LCD

AC	AC (Alternating Current)	DC	DC (Direct Current)
	Negative Reading		Data Hold
AUTO	Auto Ranging	MAX	Maximum Value Hold
MIN	Minimum Value Hold		Auto Power Off
	Low Battery		Audible Continuity
°F	Degrees (Fahrenheit)	°C	Degrees (Celsius)
M	Mega (value x 10^9 )	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	Ω	Ohms
Hz%	Frequency/Duty Cycle		Auto Power-Off
NCV	Non-Contact Voltage Tester		Diode Test
	Hazardous Voltage Indicator

FEATURE DETAILS

CAT III 800V 400A 11 14 3 13 KLEIN. TOOLS CL320 Hz °C μA~ 4A~ 40/ 400A~ NOV V~ SEL OFF RANGE MAX MIN 4000 Counts 400A AC Digital Clamp Meter 26 NCV AUTO MAX-MN AC 8.8.8 ngFVA MkONz% °C°F True RMS CAT III 800V COM VΩμA HOLD

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

1. 4000 count LCD display
2. Function selector switch
3. Clamp
4. "COM" jack
5. "VΩμA" jack
6. Backlight button

7. "RANGE" button

8. "MAX/MIN" button

9. Data Hold button
10. Clamp trigger
11. Arrow markings
12. "SEL/NCV" button
13. NCV Light
14. NCV Sensing Antenna

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 to power the meter ON, or rotate Function Selector 2 switch to OFF, then power ON the meter. To deactivate the power OFF functionality press and hold the "SELECT" 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 of AC voltage, the red NCV light 13 will flash, audible signals (beeps) will sound, and dashes will appear on the display. As the NCV sensing antenna 14 approaches the voltage source, more dashes will be presented on the display and the frequency of the audible sound will increase. 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 symbol ⑥ to turn ON or OFF the backlight. The backlight does not automatically power OFF.

RANGE

The meter defaults to auto-ranging mode ^A 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).

FUNCTION BUTTONS

MAX/MIN

When the "MAX/MIN" button ⑧ is pressed, the meter keeps track of the Maximum and Minimum values and the difference between 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), the Minimum value (MIN), and the difference between Maximum and Minimum (MAX-MIN) values. If a new maximum or minimum occurs the display updates with that new value.
2. Press "MAX/MIN" button 8 for more than two seconds 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.

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 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) CAT IV 600V CAT III 100V 10A ▲

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.

CAT IV 800V CAT III 1000V 0.7" (18 mm)

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.

the arrow markings ⑪. LIVE NEUTRAL WIRE GROUND WIRE CABLE HOT WIRE

To measure current:

1. Rotate the Function Selector switch ② to the 40/400 A setting.

KLEIN TOOLS CL320 μA= 4A~ 40/ 400A~ NCV V~ OFF SEL Hz °C 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 10 F°C V~

1. 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 4A setting for improved resolution. If the measurement is less than 4A, the meter will auto-range to the 4A range.

KLEIN TOOLS CL320 Hz °C μA~ O~I 4A~ 40/ 400A~ NCV V~ SEL OFF

⚠️ Disconnect test leads when measuring with the clamp.

OPERATING INSTRUCTIONS

AC/DC VOLTAGE (LESS THAN 600V)

1. Insert RED test lead into VΩμA jack ⑤, and BLACK test lead into COM jack ④, and rotate function selector switch ② to the V ≈ setting 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 LCD indicates which mode is selected. Note "AC" or "DC" on the display.

True RMS CAT 10 600V COM VΩ μA Red leadBlack lead

KLEIN TOOLS CL320 Hz > ℃ μA~ 4A~ 40/ 400A~ NCV V~ SEL OFF

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 v\~ the "RANGE" button ⑦ must be used.

Manual Mode Sequence

	First Press	Second Press	Third Press	Fourth Press	Fifth Press
AC Range	0-600V 0-420V	0-42V 0-420V	0-4.2V 0-420mV
DC Range	0-42V 0-4.2V	0-420mV	0-600V 0-420V

NOTE: When voltages in excess of 25V AC or 60V DC are measured the hazardous voltage indicator will be present on the display.

OPERATING INSTRUCTIONS

CONTINUITY

1. Insert RED test lead into VΩμA 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.

1. Remove power from circuit.
2. Test for continuity by connecting conductor or circuit with test leads. If resistance is measured less than 10 , an audible signal will sound and display will show a resistance value indicating continuity. If circuit is open display will show "OL".

True RMS CAT 18.00V COM VΩμA Red leadBlack lead

KLEIN TOOLS CL320 μA= 1~ 5 D ~) 4A~ 40/ 400A~ NCV V~ OFF SEL

⚠️ DO NOT attempt to measure continuity on a live circuit.

μA DC CURENT (LESS THAN 200 μA)

1. Insert RED test lead into VΩμA jack ⑤, and BLACK test lead into COM jack ④, and rotate function selector switch ② to the μA— setting.
2. Remove power from circuit and open circuit at measurement point.
3. Connect test leads in series with the circuit.
4. Apply power to the circuit to take the measurement.

True RMS CAT 10 600V COM VΩμA Red leadBlack lead

KLEIN TOOLS CL320 Hz °C μA~ + - 0 4A~ 40/ 400A~ NOV V OFF SEL

⚠️ DO NOT attempt to measure more than 200 μA.

OPERATING INSTRUCTIONS

RESISTANCE MEASUREMENTS

1. Insert RED test lead into VΩμA 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 Ω will appear on the display.

1. Remove power from circuit.
2. Measure resistance by connecting test leads to circuit. The meter will auto-range to display the measurement in the most appropriate range.

True RMS CAT @ 600V COM VΩ μA

Red leadBlack lead

KLEIN TOOLS CL320 Hz °C μA 4A~ 40/ 400A~ MCV V~ SEL OFF

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.

OPERATING INSTRUCTIONS

CAPACITANCE

1. Insert RED test lead into VΩμA 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 twice to enter Capacitance testing mode. The Capacitance icon + will appear on the display. The meter should read O nF with test leads open.

1. Remove power from circuit.
2. Measure capacitance by connecting test leads across the capacitor. The meter will auto-range to display the measurement in the most appropriate range.

True RMS CAT @ 600V COM VΩ µA

Red leadBlack lead

KLEIN TOOLS CL320 Hz 5 °C μA= + - (0~) 4A~ 40/ 400A~ NOV V~ OFF SEL

OPERATING INSTRUCTIONS

DIODE TEST

1. Insert RED test lead into VΩμA 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 Diode testing mode. The Diode icon ➤ will appear on the display.

1. 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.

True RMS CAT @ 600V COM VΩ µA

Red leadBlack lead

KLEIN TOOLS CL320 Hz °C μA~ + - Q 4A~ 40V 400A~ NOV V~ SEL OFF

FREQUENCY / DUTY-CYCLE

1. Insert RED test lead into VΩμA jack ⑤ and BLACK test lead into COM jack ④, and rotate function selector switch ② to the Frequency/Duty-Cycle Hz% 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.

1. Measure by connecting test leads across the circuit.

True RMS CAT 3000V COM VΩμA

Red leadBlack lead

KLEIN TOOLS CL320 Hz °C μA~ + + (=) 4A~ 40V 400A~ NOV V SEL OFF

OPERATING INSTRUCTIONS

TEMPERATURE

1. Insert K-type thermocouple into the VΩμA ⑤ and COM ④ jacks (observe polarity markings on thermocouple and meter), and rotate function selector switch ② to the Temperature °F 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.

1. 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.

True RMS CAT IS 000V COM VΩμA K-Type Thermocouple

KLEIN TOOLS CL320 Hz ~ °C μA~ (0~) 4A~ 40/ 400A~ NCV V OFF SEL

⚠️ 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 REPLACEMENT

When 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.

Electric battery pack and three cylindrical batteries with positive charge markings (no visible text or symbols on the main components)

To avoid risk of electric shock, disconnect leads from any voltage ounce before removing battery door.

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

3D rendered image of a handheld device with internal components and a battery symbol (no readable text or labels)

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

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/recycle for additional information.

CUSTOMER SERVICE

KLEIN TOOLS, INC.

450 Bond Street Lincolnshire, IL 60069 1-800-553-5346

[e-mail] www.kleintools.com

“MAX/MIN” (MÁXIMO/MÍNIMO)

HOLD (MAINTIEN DES DONNÉES)

REPLACEMENT DES PILES

Close-up of a handheld electrical clamp meter with battery pack and three batteries (no visible text or symbols)