Clamp Meter

In electrical and electronic engineering, a current clamp or current probe is an electrical device with jaws which open to allow clamping around an electrical conductor. This allows measurement of the current in a conductor without the need to make physical contact with it, or to disconnect it for insertion through the probe. Current clamps are typically used to read the magnitude of alternating  current (AC) and, with additional instrumentation, the phase and waveform can also be measured.

Fluke350 Series (353 & 355) Clamp Meter

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ModelFluke 350
UsageIndustrial
Jaw Open (mm)18 mm
Warranty3 Year
Usage/ApplicationLaboratory
BrandFluke

Versatile and rugged tools for applications with high currents

Confidently take reliable readings with the True-rms, Fluke 355 and 353 digital clamp meters; the tools of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications. The extra rugged design and CAT IV 600 V, CAT III 1000 V ratings add an extra element of user protection when taking high-powered measurements.

Accurate peak measurements can be taken using the in-rush current mode, ideal for motors and inductive loads. The 355 also measures voltage and resistance, making this an ideal clamp meter for utilities, electrical contractors and industrial service technicians.

FEATURES

  • Reliably handle a wide range of high-current applications with 2000 A ac dc true-rms, 1400 A ac, and 2000 A dc
  • The large 58 mm (2.3 in) jaw capacity is suitable for large or multiple conductors
  • CAT IV 600 V, CAT III 1000 V rating for added user protection
  • In-rush current measurement captures 'power-on' surge current with accuracy and repeatability
  • High voltage measurement of 1000 V ac dc true-rms, 600 V ac, and 1000 V dc allows the user to perform multiple tests with only one tool (355 only)
  • Resistance to 400K ohms coupled with a continuity beeper provide the convenience of a multimeter in a clamp meter. (355 only)
  • Accurately measure frequency up to 1 kHz for optimum troubleshooting
  • Quickly analyze readings using the MIN, MAX, and AVG functions
  • A large backlit display allows for easy visibility in low-lit areas
  • Use the display hold feature to capture readings even when the display cannot be viewed
  • Use the low-pass filter to smooth out noisy loads and stabilize readings


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Fluke 320 Series (323, 324 & 325) Clamp Meter

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Model320
UsageIndustrial
BrandFluke
Frequency50-60 Hz
DisplayDigital
Power SourceElectric
ApplicationLaboratory

True-rms measurements and optimized ergonomics make the 320 Series Clamp Meters the best general troubleshooting tools for commercial and residential electricians. The 323, 324 and 325 are designed to verify the presence of load current, AC voltage and continuity of circuits, switches, fuses and contacts. These small and rugged clamp meters are ideally suited for current measurements up to 400 A in tight cable compartments. The Fluke 325 also offers DC current and frequency measurements.

Measurement capability
  • 400 A ac and dc current measurement
  • 600 V ac and dc voltage measurement
  • True-rms ac voltage and current for accurate measurements on non-linear signals
  • Resistance measurement up to 40 k with continuity detection
  • Temperature and capacitance measurement
  • Frequency measurement

Features
  • Slim, ergonomic design
  • Large, easy to read backlight display
  • CATIV 300V/CATIII 600 V safety rating
  • Hold button
  • Two-year warranty
  • Soft carrying case

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Fluke 317 & 319 Clamp Meter

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Model317 and 319
UsageIndustrial
BrandFluke
Resolution0.01A and 0.1 V
AC or DC current1000 A
AC or DC volts600 V
Resistance measurement4000 ohm

The Fluke 317 & 319 Clamp Meter are designed with ergonomic concepts, shaped to fit your hand and to access tight spots easily. These small and rugged clamp meters are ideally suited for current measurements up to 1000 A (319) in tight cable compartments. The Fluke 317and 319 also offer AC/DC current measurements and have a higher resolution for loads below 40 A. In addition to a compact package with a strong feature set, the Fluke 319 also equips with In-rush current and Frequency functions for testing motors, lighting, etc.

Features
  • Special 40A high accuracy AC/DC high measure, 1.6% accuracy, 0.01A resolution
  • Small body and jaws fit perfectly in your hand and into tight places
  • Large, backlit display is easy-to-see in less than ideal conditions
  • In-rush current function (319) for measuring starting current for motors, lighting, etc.
  • Continuity for quick checking of shorts
  • Auto-shut-off maximizes battery life so the meter works when you need it
  • Display hold function

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Fluke 376 (True RMS) Clamp Meter

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The Fluke 376 Clamp Meter offers improved performance perfect for a wide range of current measurement situations. With true-rms voltage and current measurements, the Fluke 376 can read up to 1000 V and 1000 A in both ac and dc modes.

Additionally, the Fluke 376 includes the new iFlex(TM) flexible current probe, which expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure around awkward sized conductors and improved wire access. The Fluke 376 is the direct replacement for the Fluke 337 Clamp Meter.

Safety Conformance
EN/IEC 61010-12001; 1000V CAT III, 600V CAT IV

FEATURES

  • iFlex flexible current probe expands the measurement range to 2500 A ac
  • CAT IV 600 V, CAT III 1000 V
  • True-rms ac voltage and current for accurate measurements on non-linear signals
  • Min, max, average and inrush recording to capture variations automatically
  • Integrated low pass filter and state of the art signal processing allows for use in noisy electrical environments while providing stable readings
  • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it


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Fluke 362 Clamp Meter

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BrandFluke
Model362
UsageIndustrial

The new Fluke 362 Clamp Meter is designed to fit easily in your pocket. The small 18 mm triangular jaw allows access into tight places where other clamp meters can't reach, while providing the accuracy you can trust from a Fluke tool. This durable clamp meter is a must-have for basic clamp measurements.

FEATURES
  • 200 A ac and dc current and 600 V ac and dc voltage measurement range
  • 3000 resistance range, continuity detection
  • Zero function allows the display to be cleared for DC measurements
  • Data Hold function
  • CAT III 600 V safety rating

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    Fluke 365 (True RMS) Clamp Meter

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    BrandFluke
    ModelFluke 365
    UsageIndustrial

    The Fluke 365 is a rugged meter perfect for jobs where access to wires is difficult. The 365's thin, small jaw is detachable with a flexible lead, which makes gaining access to wires and viewing the display easier than ever.

    Safety Conformance
    IEC/EN 61010-12001, 600V CAT III

    FEATURES

    • 200 A ac and dc current measurement with detachable jaw
    • 600 V ac and dc voltage measurement
    • Detachable jaw makes accessing wires and viewing the display easier
    • Built in flashlight/torch allows for easy illumination and identification of wires
    • CAT III 600 V
    • Compact design fits in your hand and can be used while wearing protective equipment
    • State of the art signal processing allows for use in noisy electrical environments while providing stable readings
    • Large, easy to read, backlight display automatically sets the correct measurement range so you do not need to change switch positions while taking a measurement


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    Fluke 374 (True RMS) Clamp Meter

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    BrandFluke
    Model374
    UsageIndustrial, Laboratory

    The Fluke 374 True-rms Clamp Meter can read up to 600 V and 600 A in both ac and dc modes. Additionally, the 374 is compatible with the new iFlex flexible current probe (sold separately), which increases the measurement range to 2500 A ac and provides increased display flexibility, and improved wire access.

    Safety Conformance
    EN/IEC 61010-12001; 1000V CAT III, 600V CAT IV

    FEATURES

    • iFlex flexible current probe (sold separately) expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure awkward sized conductors and improved wire access
    • CAT IV 600 V, CAT III 1000 V
    • Propietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
    • Ergonomic design fits in your hand and can be used while wearing personal protective equipment
    • Large, easy to read backlight display automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement


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    Fluke381 (True RMS) Clamp Meter

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    ModelFluke 381
    UsageIndustrial

    The Fluke 381 does everything you would expect from a clamp meter, and then lets you remove the display for even more flexibility. Now one technician can do jobs that used to require two people. Clamp the Fluke 381 around a conductor, remove the display and walk across the room to operate controls or remove protective equipment, all while watching real-time readings.

    The iFlex flexible current probe (included) expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure awkward sized conductors and improved wire access.

    Safety Conformance
    IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV

    2010 PLANT ENGINEERING PRODUCT OF THE YEAR

    FEATURES:

    • Wireless technology allows the display to be carried up to 30 ft. away from the point of measurement for added flexibility without interference with measurement accuracy
    • The removable magnetic display can be conveniently mounted where it is easily seen
    • iFlex flexible current probe expands the measurement range to 2500 A ac
    • CAT IV 600 V, CAT III 1000 V
    • Integrated low pass filter and state of the art signal processing allows for use in noisy electrical environments while providing stable readings
    • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
    • Ergonomic design fits in your hand and can be used while wearing protective equipment
    • Radio transmitter automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement


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    Fluke 902 (true Rms For Hvac) Clamp Meter

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    BrandFluke
    Model902
    UsageIndustrial

    Heating, ventilation, air conditioning (HVAC) technicians require a service tool that can consistently keep up with their demands. The Fluke 902 expands the existing line of quality Fluke clamp meters by delivering the features necessary to diagnose and repair HVAC systems. Combined with True RMS technology and a CAT III 600 V rating, the Fluke 902 helps technicians do their jobs safely and accurately.


    FEATURES
    • Designed for HVAC applications with capacitance, DC Current (A), and temperature measurements
    • Small body and jaws fit perfectly in your hand and into tight places
    • Handy 'Display Hold' button keeps measurements on the display
    • Meter controls are positioned so current measurements can be done with one hand (index finger on clamp opening lever and thumb on rotary switch)
    • Large, backlit display is easy-to-see in less than ideal conditions
    • Auto shut-off maximizes battery life so the meter works when you need it
    • Three year warranty


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    Fluke 305 Clamp Meter

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    BrandFluke
    Model305
    UsageIndustrial

    The Fluke 305 come with all the rugged, reliable and accurate features you have come to trust, in a small, ergonomic design. The innovative body design offers a more compact tool to meet your needs. With features of AC current measurements up to 999 A, a large 30 mm jaw opening and CAT IV 300 V/CAT III 600 V safety rating, you get an easy-to-use tool that handles your everyday electrical maintenance needs.

    Features:
    • 999.0 A ac current measurement
    • Cat IV 300V / CAT III 600V safety rated
    • 30 mm jaw size for numerous applications
    • Resistance range of 40 k
    • Slim, ergonomic design is easy to carry and simple to use
    • Easy to read backlight display

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    Fluke 302 Clamp Meter

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    BrandFluke
    ModelFluke 302
    UsageIndustrial

    Compact. Easy to use. Fluke tested.
    The Fluke 302 comes with all the rugged, reliable and accurate features you have come to trust, in a small, ergonomic design. The innovative body design offers a more compact tool to meet your needs. With features of AC current measurements up to 400 A, a large 30 mm jaw opening and CAT IV 300 V/CAT III 600 V safety rating, you get an easy-to-use tool that handles your everyday electrical maintenance needs.

    FEATURES:
    • 400 A ac current measurement
    • Cat IV 300V / CAT III 600V safety rated
    • 30 mm jaw size for numerous applications
    • Resistance range of 40 k
    • Slim, ergonomic design is easy to carry and simple to use
    • Easy to read backlight display

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    Fluke 360 (Leakage Current) Clamp Meter

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    BrandFluke
    ModelFluke 360
    UsageIndustrial

    The Fluke 360 leakage tester is a rugged and accurate solution for leakage current measurement.

    Ideally designed for non-invasive checks of insulation condition, the Fluke 360 leakage meter allows you to perform tests without powering down the installation or disconnecting equipment - saving you time, without compromising on quality or safety.

    FEATURES:

    • Measurement of leakage current with 3 mA range and 1 µA of resolution, for accurate monitoring of insulation erosion
    • Broad range of measurement, from 1 µA up to 60 A, for all installation needs
    • Advanced shielding to ensure accurate results when measuring near other conductors
    • The high durability clamp construction can withstand over 50,000 operations, added ruggedness that extends the life of your leakage clamp.
    • Easy-to-carry, pocket-sized leakage current tester with wide 40 mm (1.5 in) jaw size
    • Handy “Display-Hold” button for capturing leakage current readings in hard-to-reach places
    • Auto power-off, with warning buzzer, saves battery life
    • Conformance to IEC1010 and EMC standard for confident measurements
    • Meets all of the applications and performance classes in safety standard VDE0404-4 and VDE0702 for leakage current and differential current measurement of electrical appliances

     

     


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    Fluke 303 Clamp Meter

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    BrandFluke
    ModelFluke 303
    UsageIndustrial

    The Fluke303comes with all the rugged, reliable and accurate features you have come to trust, in a small, ergonomic design. The innovative body design offers a more compact tool to meet your needs. With features of AC current measurements up to 600 A, a large 30 mm jaw opening and CAT IV 300 V/CAT III 600 V safety rating, you get an easy-to-use tool that handles your everyday electrical maintenance needs.


    FEATURES

    • 600 A ac current measurement
    • Cat IV 300V / CAT III 600V safety rated
    • 30 mm jaw size for numerous applications
    • Resistance range of 40 k
    • Slim, ergonomic design is easy to carry and simple to use
    • Easy to read backlight display


    Additional Information:

    Item Code: FLUKE303

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    Fluke 771 Milliamp Process Clamp Meter

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    ModelFluke 771
    UsageIndustrial

    If you need more time in your busy day take a good look at the Fluke 771 mA Clamp Meters. It’s designed to save you time, and money, by eliminating time wasting activities. Now you can troubleshoot and repair 4-20 mA loops without breaking the loop or bringing down the system.

     

    Milliamp Clamp Features

    Application

    How it saves time and money

    Measure mA signals for PLC and control system analog I/O without breaking the loop.

    Measures low level dc current

    Correlate process indication with real physical value

    Measure output signals from transmitters without breaking the loop

    Maintain and troubleshoot process and automation equipment without breaking the loop

    No disruption to the process

    Detachable clamp with extension cable

    Measurements in tight locations

    Enables measurements in difficult situations

    Measurement Spotlight

    Illuminates hard to see wires in dark enclosures

    Measurement process is easier and quicker

    Measure up to 99.9 mA range non-contact

    Wide range of measurements

    Measures 10 to 50 mA signals in older control systems

    Automatic power off

    After 15 minutes and 2 minute automatic off for backlight and spotlight

    Saves battery life


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    Fluke 772 & 773 Ma Clamp Meter

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    Product Details:

    BrandFluke
    Model772 & 773
    UsageIndustrial

    • Taking mA measurements by removing a wire and breaking the loop
    • Calling the control room to isolate a loop
    • Testing analog input/output on a console
    • Troubleshooting devices with mA inputs and outputs
    • Repairing intermittent or erratic 4-20 mA loops
    • Going back to the shop to get extra tools

    If you need more time in your busy day take a good look at the Fluke 773 mA Clamp Meters. It’s designed to save you time, and money, by eliminating time wasting activities. Now you can troubleshoot and repair 4-20 mA loops without breaking the loop or bringing down the system.

    Here are some specific ways the Fluke 773 Clamp Meters will help you:

    FAETURES:

    The 773 mA Clamp Meter features:
    • Best in class 0.2 % accuracy
    • 0.01 mA resolution and sensitivity
    • Measure 4 to 20 mA signals without ”breaking the loop”
    • Measure mA signals for PLC and control system analog I/O
    • Dual backlit display with both mA measurement and percent of 4 to 20 mA span
    • Measurement Spotlight illuminates hard to see wires in dark enclosures
    • Detachable clamp with extension cable for measurements in tight locations
    • Measure 10 to 50 mA signals in older control systems using the 99.9 mA range
    • Automatically change the 4 to 20 mA output for remote testing
    • Power saving features, auto-off, backlight timeout extend battery life
    • Hold function captures and displays changing measurements
    • Measure 4 to 20 mA signals with in-circuit measurement
    • Simultaneous mA in-circuit measurement with 24V loop power for powering and testing transmitters
    • Source 4 to 20 mA signals for testing control system I/O or I/Ps
    • mA output linear ramp or 25% step output
    • Automatically change the 4 to 20 mA output for remote testing
    • DC voltage measurement to verify 24V power supplies or voltage I/O signals
    • Source DC voltage to test input devices that accept a 1-5V or 0 to 10V signals
    • Scaled mA output provides a continuous mA signal that corresponds to the 4 to 20 mA signal measured by the mA clamp
    • Enables milliamp signal logging to a separate logging device without breaking the loop
    • Output mA signal enables a logging DMM or other device to record the 4- to 20 mA signal without breaking the loop
    • mA in/out: simultaneously measure the mA signal with the clamp and source a mA signal
    • Apply a mA input signal to a device and measure its’ 4-20 mA output on devices such as valves or mA isolators
    • Voltage output linear ramp or 25% step output
    • Automatically change the voltage output for remote testing

     


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    Fluke 345 Power Quality Clamp Meter

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    BrandFluke
    ModelFluke 325
    UsageIndustrial

    This clamp on meter is a combination power analyzer, power quality logger, and clamp meter, and is ideal for monitoring electronic loads.

    The Fluke 345 is more than an electric power meter. Combining the functions of a clamp meter, oscilloscope, data logger and digital power meter into one handy device, the Fluke 345 is ideal for working with variable frequency motor drives, high efficiency lighting and other loads using switching electronics.

    One of the leading wattage meters of the world, the multi-faceted Fluke 345 is packed with features such as a bright, color display to analyze the harmonic spectrum, a low-pass filter to remove high frequency noise and a high EMC immunity design, making the Fluke 345 power analyzer ideal for troubleshooting power quality on switching loads. The internal memory of this electric power meter enables long-term power quality logging for analysis of trends or intermittent problems. Additionally, the Hall Effect clamp meter design makes measurement of dc current possible without the need to break the circuit.

    Besides effectively performing basic tasks like measuring wattage, the Fluke 345 power meters offer the ease of use, portability and flexibility needed to resolve most power issues in commercial, industrial and residential settings.

    • Setup and troubleshoot variable frequency drives and UPS systems - Verify correct operation by measuring key power quality parameters
    • Harmonics measurements - Uncover harmonic issues that can damage or disrupt critical equipment
    • Inrush capture - Check start-up current where spurious resets or nuisance circuit breaker tripping occurs
    • Load studies - Verify electrical system capacity before adding loads

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