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UTL291

Digital Clamp-on Meter

Instruction Manual

English

1

        

yr.

warranty

IEC61010-1

P R O F E S S I O N A L   V A L U E

10078  08/14

ELECTRICAL SPECIFICATIONS

DC VOLTAGE 

Range

Resolution Accuracy

600mV

0.1mV

± (0.8% + 2 dgts)

6V

1mV

60V

10mV

600V

1V ± (1.0% + 2 dgts)

Overload protection: 

600V RMS

AC VOLTAGE 

Range

Resolution Accuracy

600mV

100mV ± (1.0% + 10 dgts)

6V
60V
600V

1V ± (1.2% + 10 dgts)

Overload protection: 

600V RMS

Frequency Range: 

50Hz ~ 60Hz

AC CURRENT 

Range

Resolution Accuracy

6A

0.001A

± (2.5% + 10 dgts)

60A

0.01A

600A

0.1A

Frequency Range: 

50Hz ~ 60Hz

RESISTANCE

Range

Resolution Accuracy

600Ω

0.1Ω

± (1.2% + 2 dgts)

6kΩ

60kΩ

10Ω

600kΩ

100Ω

6MΩ

1kΩ

60MΩ

10kΩ ± (2.0% + 2 dgts)

Overload protection: 25

0V RMS

DIODE

Range

Test Current Open Test Circuit

0.5 to 0.7V

1.2mA 2.7V

Overload protection: 25

0V RMS

DUTY CYCLE

Range

Resolution Accuracy

0.5 to 99%

0.10% ± (1.5% + 15 dgts)

CONTINUITY

Audible 

Threshold

Open Test 

Circuit

Resolution

≤ 50Ω

1.0V

0.1Ω

Overload protection: 

250V RMS

FREQUENCY

Range

Resolution Accuracy

9.99Hz

0.001Hz

± (0.5% + 5 dgts)

99.99Hz

0.01Hz

999.9Hz

0.1Hz

9.999kHz

0.001kHz

99.99kHz

0.01kHz

999.9kHz

0.1kHz

9.999MHz

0.001MHz

Overload protection: 25

0V RMS

CAPACITANCE

Range

Resolution Accuracy

10nF

0.001nF

± (3.0% + 10 dgts)

100nF

0.01nF

1μF

0.1nF

10μF

0.001μF

100μF

0.01μF

1mF

0.1μF

10mF

0.001mF

± (4.0% + 10 dgts)

60mF

0.01mF

Overload protection: 

250V RMS

TEMPERATURE

Range

Resolution Accuracy

-20˚C to 1000˚C 1˚C

± (2.0% + 2 dgts)

-4˚F to 1832˚F 1˚F

± (2.0% + 4 dgts)

GENERAL SPECIFICATIONS

Display: LCD 3-5/6 Digits 6000 count

Refresh Rate: 3 times/sec

Overrange display: “OL”

Power battery: DC1.5V x3 SIZE AAA.

Battery Life: Approx. 100 hours

Clamp jaw opening: 1.02in (26mm)

Operating Elevation Up to 6571.7 ft. (2000m)

Operating Temperature: 32°F to 104°F (0°C to 40°C) at < 75% R.H

Storage Temperature: 14°F to 140°F (-20°C to 60°C) at < 80% R.H

Accuracy Temperature: Stated Accuracy at 73°F ± 41°F (23°C to ± 5°C) < 75% R.H

Dimensions: 8.66x3.19x1.6in (220x81x41mm)

Weight: about 0.70lbs. (318g) (battery installed)

Certifications: CE, C-ETL-US

Standards: IEC61010-1, IEC61010-2-032, Double Insulated 

Operating Category: 600V CAT III

Pollution degree: 2.

BUTTON OPERATION 

Non-Contact Voltage Detection

 key, is used to detect power with a sensor located at the  

tip of the clamp head and indicates positive response with an audible alarm and visual LED  

indicator light just above the “NCV” button. See reverse side for instructions.

 

Selection

 key, switches measurement functions that share a selector position. By pressing  

“SEL” key to toggle between AC and DC Volts, Diode, Continuity, Capacitance and Resistance.

 

Range 

key, press “RAN” key; to toggle between Automatic Ranging and Manual Ranging.  

“Auto” icon will show on the display. Press and hold “RAN” to return to Auto Ranging.

Hz%

  

Frequency / Duty Ratio

 selection key. Pressing this key can select Voltage / Frequency / Duty  

Ratio or Current / Frequency / Duty Ratio pending selector position. 

 

Hold 

key, press “HOLD” key; the reading will be locked and “HOLD” icon will display on  

display. Press “HOLD” key again to release.

 

Backlight 

key: Press and hold “Backlight” key for 2 seconds to turn on. Press and Hold again  

to turn off. The Worklight only turns on with the Backlight in AC Current mode. 

COM

UTL291

TEMP

AUTO

µmVA

OFF

6/60

AC CLAMP METER

INPUT

RAN

Hz%

HOLD

A

Hz%

600

A

V

SEL

NCV

MAX

°C °F

kMΩ

Ω

UTL Universal Trade Line

800-547-5740

www.utltest.net

Copyright © 2014 UTL. All Rights Reserved

WARRANTY

 

The UTL Digital Clamp-on Meter (UTL291) is warranted to be free from defects in materials and 

workmanship for a period of one year from the date of purchase. This warranty does not cover fuses, 

disposable batteries, or damage from drops, neglect, misuse, alteration, contamination, or abnormal 

conditions of operation or handling. Resellers are not authorized to extend any other warranty on behalf 

of UTL. To obtain service during the warranty period, contact your nearest UTL service center directly. For 

full warranty details visit us online 

www.utltest.net. 

ELECTRIC SYMBOLS & METER ICONS

Important safety information

Ground wire

Danger High Voltage

Protected for High Voltage

AC (Alternating Current)

Double insulation protection

DC (Direct Current)

Complies with EU Regulations

AC or DC

Auto Ranging

Negative Polarity

Low Battery

Resistance

Data Hold

Diode

Backlight

Continuity

Overload: Range Exceeded

Micro 10-6

Kilo 103

Milli 10-3

Mega 106

99 Washington Street 
Melrose, MA 02176 

Phone

 781-665-

1400

Toll Free 1-800-517-8431

Visit us at www.T

estEquipmentDepot.com

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