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Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase

Model: 381-KIT4 | UPC: 095969537483

Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase

Model: 381-KIT4 | UPC: 095969537483

Enables one person to perform a job that would typically take two people to do with the removable display. This True RMS AC/DC clamp meter allows the user to clamp around a conductor to measure the current. This value added kit includes the REED R2300 Infrared Thermometer and the REED R5400 Line Splitter for FREE.

Enables one person to perform a job that would typically take two people to do with the removable display. This True RMS AC/DC clamp meter allows the user to clamp around a conductor to measure the current. This value added kit includes the REED R2300 Infrared Thermometer and the REED R5400 Line Splitter for FREE.

Sale Price $624.99 USD
Regular Price $687.49 USD
Availability 5 in Stock
Quantity

Add In-House Traceable Calibration to your 381

Add In-House Traceable Calibration to your R2001

Add In-House Traceable Calibration to your 381

Add In-House Traceable Calibration to your R2001


Fluke 381 Offers

What once took two people, now takes one

Allows one technician to do the job that would require two people. This remote display allows the user to clamp around a conductor, detach the display. Furthermore, they can walk across the room to configure 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. With a cord that runs 6', you can finally measure those tight spaces, awkward sized conductors and disorganized wires.

Measurement capability

  • 1000 A AC and dc current measurement with fixed jaw
  • 2500 A AC current measurement with iFlex flexible current probe
  • 1000 V AC and dc voltage measurement
  • True RMS ac voltage and current for accurate measurements on non-linear signals
  • Frequency measurement to 500 Hz with both jaw and iFlex
  • 60 kµ resistance measurement with continuity detection
  • Min, max, average and inrush recording to capture variations automatically

Features

  • Wireless technology allows the display to be carried up to 30' (9.15 m) away from the point of measurement for added flexibility without interference with measurement accuracy
  • iFlex™ flexible current probe 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 600V, CAT III 1000 V safety rating
  • 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 personal protective equipment
  • The removable magnetic display can be conveniently mounted where it is easily seen
  • Radio transmitter automatically turns off when the display is connected to the meter
  • 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
  • Safety conformance: IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV
How to measure signals using test probes

To measure ac or dc voltage:

  1. Turn the meter's dial to the proper voltage function (Fluke 381 voltage symbol).
  2. Connect the black test lead to the COM terminal and the red test probe to the V terminal, indicated by Fluke voltage Omega symbol on the Fluke 381.
  3. Measure the voltage by touching the probes to the desired test points of the circuit.
  4. View the reading in the display.

To measure resistance or continuity:

  1. Turn the dial to Fluke 381 Omega symbol.
  2. Remove power from the circuit being tested.
  3. Connect the black test probe to the COM terminal and the red test probe to Fluke voltage Omega symbol terminal.
  4. Measure the resistance by touching the probes to the desired test points of the circuit.
  5. View the reading on the display.

If the resistance is <30Ω, continuity is indicated by a beeper continuously sounding. If the display reads OL, the circuit is open or the resistance being measured is greater than the meters resistance range.

Fluke 381 voltage: Making measurements using test probes

Visual of an AC/DC voltage measurement


To measure frequency (on the Fluke 381):

  1. Turn the dial to Fluke 381 iFlex symbol.
  2. Center the jaw or flexible probe around the measurement source.
  3. Push the yellow shift button (Fluke 381 zero symbol on the Fluke 381) to shift to Hz.
  4. View the measurement in the display.
What is True RMS?

“RMS” stands for root-mean-square. It comes from a mathematical formula that calculates the “effective” value (or heating value) of any ac wave shape. In electrical terms, the ac rms value is equivalent to the dc heating value of a particular waveform—voltage or current. For example, if a resistive heating element in an electric furnace is rated at 15 kilowatts (kW) of heat at 240 V ac rms, then we would get the same amount of heat if we applied 240 V of dc instead of ac.

Electrical power system components such as fuses, bus bars, conductors, and thermal elements of circuit breakers are rated in rms current because their main limitation has to do with heat dissipation. If we want to check an electrical circuit for overloading, we need to measure the rms current and compare the measured value to the rated value for the component in question.

If a current clamp is labeled and specified to respond to the true-rms value of current, it means that the clamp’s internal circuit calculates the heating value according to the rms formula. This method will give the correct heating value regardless of the current wave shape.

Certain low-cost current clamps, which don’t have true rms circuitry, use a short cut method to find the rms value.

These meters are specified to be “average responding-rms indicating.” These meters capture the rectified average of an ac waveform and scale the number by 1.1 to calculate the rms value. In other words, the value they display is not a true value, but rather is a calculated value based on an assumption about the wave shape. The average responding method works for pure sine waves but can lead to large reading errors up to 40 percent, when a waveform is distorted by nonlinear loads such as adjustable speed drives or computers. The table below gives some examples of the way the two different types of meters respond to different wave shapes.

Some true-rms clamp meters are ac coupled, which gives the rms value of only the ac component of a waveform. (This dates from the time when a majority of measurements in the electrical industry were predominately sinusoidal with no dc offset.) To measure the rms with an ac coupled clamp meter, first measure the rms value of the ac component. Then measure the waveform on the dc scale. Combine the ac and dc components by squaring each, adding the results, and then extracting the square root. The function AC+DC in Fluke true rms clamp meters essentially does the calculation for you.

Fluke 381: Identifying True RMS

A comparison of average responding and true-rms units

Learn more about True RMS
Fluke Clamp Selection Guide

REED R2300 Infrared Thermometers

This infrared thermometer features a 12:1 distance to spot ratio and is capable of measuring temperatures up to 752°F (400°C). The R2300 is an affordable non-contact measurement solution able to quickly and efficiently measure the temperature of hot, hazardous or hard-to reach objects from a safe distance.

Features

  • Built-in laser pointer identifies target area
  • User selectable °F or °C
  • 12:1 distance to spot size ratio
  • Digitally adjustable emissivity
  • Max and Min readings
  • Backlit display
  • High and low alarms
  • Low battery indication and auto shut off

REED R5400 Line Splitter

Features

  • Enables user to measure AC current on a 2-wire or 3-wire power cord to 15A
  • Fits clamp jaw size 0.75" (19mm) and above
  • Plugging the power connector into the line splitter separates the hot/live conductor from the neutral (and ground)
  • Two measurement sensitivity positions (1X and 10X)
  • Voltage check function

Fluke 381-KIT4 Specifications

Electrical Specifications
Range 999.9 A
Resolution 0.1 A
Accuracy 2% ± 5 digits (10 to 100 Hz)
5% &plusn; 5 digits (100 to 500 Hz)
Crest Factor (50/60 Hz) 3 at 500 A
2.5 at 600 A
1.42 at 1000 A
Add 2% for C.F. >2
AC Current via Flexible Current Probe
Range 999.9, 2500 A (45 to 500 Hz)
Resolution 0.1, 1 A
Accuracy 3% ± 5 digits
Crest Factor (50/60 Hz) 3.0 at 1100 A
2.5 at 1400 A
1.42 at 2500 A
Add 2% for C.F. >2
DC Current
Range 999.9 A
Resolution 0.1 A
Accuracy 2.5% ± 5 digits
Click here for complete specifications on the Fluke 381-KIT4

What's included with the Fluke 381-KIT4

  • Remote Display True RMS AC/DC Clamp Meter
  • 8" (203.2 mm) Flexible Current Probe
  • Test Leads
  • Soft Carrying Case
  • 5 x AA Alkaline Batteries
  • Coated Instruction Card
  • Safety Information Sheet

How to Measure Inrush Current with Fluke 381 Remote Display True RMS AC/DC Clamp Meter


In this video, the user will learn how to measure inrush current with their Fluke 381 clamp meter. To measure a motor or another mechanical device, the dial must be turned to "Amps" and then press "Inrush" to start the measurement to get the data. This device also works with iFlex so that if you're in a tight spot, you can still get your measurement. To do so, hit the "iFlex" button and then "Inrush".

Fluke iFlex™ & Tight Spaces


This short video demonstrates a few applications in which users can benefit from the Fluke iFlex.

How To Select The Best Fluke Clamp Meter


This video will provide a brief overview of a few Fluke clamp meters. This will allow users to get some insight into which meter they need to complete their job based on their specifications.

Fluke iFlex™ Flexible Current Probe


Need a highly flexible current clamp? This short video demonstrates an application in which users can benefit from the Fluke iFlex.

Click on a category to view a selection of compatible accessories with the Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase.





Fluke TLK289 Industrial Master Test Lead Set TLK289
Ideal for electrical and electronic testing in industrial environments. Additionally, the master test lead set is compatible with a variety of meters and extends the meter's capabilities.




Fluke TP1 Slim Reach Test Probe Set TP1
Features hard stainless steel probe tips and one pair of slender probe bodies, which is ideal for probing closely spaced or recessed terminals. Additionally, it comes in a flat blade design to hold securely in blade type electrical wall sockets.




Fluke TL75 Hard Point™ Test Lead Set TL75
Offers the convenience of a test lead and probe-in-one unit with a variety of connections. One pair (red, black) comfort grip probe with PVC insulated right angel shrouded 0.16" (4 mm) banana plugs.




Fluke TL224 SureGrip™ Silicone Insulated Test Leads TL224
These insulated test leads provide the convenience and variety for test lead configurations by attaching clips, hooks and grabbers as needed.




Fluke TL223 SureGrip™ Electrical Test Lead Set TL223
Designed for your comfort so you can focus on taking accurate measurements, this handy all-in-one kit comes equipped with a SureGrip alligator clip set, slim-reach test probes (flat bladed), and SureGrip silicone test lead set.




Fluke AC89 Heavy Duty Insulation Piercing Test Clip AC89
Single probe pierces 0.01 to 0.6" (0.25 to 1.5 mm) insulated wire with a small pin allows self-healing of the insulation, and 1000 V, 10 A maximum.




Fluke AC87 Heavy Duty Bus Bar Clip Set AC87
Comes equipped with one pair (red, black) of flat, right angle design for connecting to bus bars, and CAT III 600 V, 5 A rating, CSA listed. Adjustable collar provides two ranges of jaw openings up to 1.81" (30 mm).




Fluke AC285 SureGrip™ Alligator Clips AC285
Designed to improve steadiness in slippery hands, and is for use with TL222 and TL224 test leads. Rubber over-molded surfaces and finger-hugging curves give a comfortable, reliable grip so you can focus on making an accurate measurement.




Fluke AC220 SureGrip™ Alligator Clips AC220
Designed to improve steadiness with rubber overmolded surfaces and finger-hugging curves. For use with TL222 and TL224 test leads.




Fluke TL175 TwistGuard Test Leads Set TL175
By simply twisting the test lead the user can change the exposed probe tip length from 19 mm to 4 mm (0.75 inch to 0.16 inch).




Fluke LVD1A Volt Light LVD1A
Handy Fluke Volt Light compact LED flash-lights with built-in color responsive AC non-contact voltage detector.




Fluke L206 Deluxe LED Hat Light L206
Three super bright white LEDs never burn out attach to hard hat, baseball cap, or panel door.




Fluke C345 Soft Carrying Case C345
For use with the Fluke 345.




Fluke C550 Premium Tool Bag C550
Tool Bag with steel reinforced frame.




Fluke i2500-18 iFlex Flexible Current Probe, 18" i2500-18
Expands the measurement range of the select Fluke meters to 2500 A AC, and connects directly to the meter, displaying current measurements without error prone scaling factors. The 6' cord allows separation between the measurement location and the clamp meter, and the large loop size and thin cross-section allow the measurement of awkward sized conductors and improved wire access in crowded spaces.




Fluke i2500-10 iFlex Flexible 10" Current Probe i2500-10
The iFlex 2500 is a 10" flexible current probe that offers a measuring capability up to 2500 A AC current and up to 1000 V AC.




Customer Reviews for the Fluke 381-KIT4

Ask a question about Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase

Fluke 381 Offers

What once took two people, now takes one

Allows one technician to do the job that would require two people. This remote display allows the user to clamp around a conductor, detach the display. Furthermore, they can walk across the room to configure 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. With a cord that runs 6', you can finally measure those tight spaces, awkward sized conductors and disorganized wires.

Measurement capability

  • 1000 A AC and dc current measurement with fixed jaw
  • 2500 A AC current measurement with iFlex flexible current probe
  • 1000 V AC and dc voltage measurement
  • True RMS ac voltage and current for accurate measurements on non-linear signals
  • Frequency measurement to 500 Hz with both jaw and iFlex
  • 60 kµ resistance measurement with continuity detection
  • Min, max, average and inrush recording to capture variations automatically

Features

  • Wireless technology allows the display to be carried up to 30' (9.15 m) away from the point of measurement for added flexibility without interference with measurement accuracy
  • iFlex™ flexible current probe 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 600V, CAT III 1000 V safety rating
  • 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 personal protective equipment
  • The removable magnetic display can be conveniently mounted where it is easily seen
  • Radio transmitter automatically turns off when the display is connected to the meter
  • 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
  • Safety conformance: IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV
How to measure signals using test probes

To measure ac or dc voltage:

  1. Turn the meter's dial to the proper voltage function (Fluke 381 voltage symbol).
  2. Connect the black test lead to the COM terminal and the red test probe to the V terminal, indicated by Fluke voltage Omega symbol on the Fluke 381.
  3. Measure the voltage by touching the probes to the desired test points of the circuit.
  4. View the reading in the display.

To measure resistance or continuity:

  1. Turn the dial to Fluke 381 Omega symbol.
  2. Remove power from the circuit being tested.
  3. Connect the black test probe to the COM terminal and the red test probe to Fluke voltage Omega symbol terminal.
  4. Measure the resistance by touching the probes to the desired test points of the circuit.
  5. View the reading on the display.

If the resistance is <30Ω, continuity is indicated by a beeper continuously sounding. If the display reads OL, the circuit is open or the resistance being measured is greater than the meters resistance range.

Fluke 381 voltage: Making measurements using test probes

Visual of an AC/DC voltage measurement


To measure frequency (on the Fluke 381):

  1. Turn the dial to Fluke 381 iFlex symbol.
  2. Center the jaw or flexible probe around the measurement source.
  3. Push the yellow shift button (Fluke 381 zero symbol on the Fluke 381) to shift to Hz.
  4. View the measurement in the display.
What is True RMS?

“RMS” stands for root-mean-square. It comes from a mathematical formula that calculates the “effective” value (or heating value) of any ac wave shape. In electrical terms, the ac rms value is equivalent to the dc heating value of a particular waveform—voltage or current. For example, if a resistive heating element in an electric furnace is rated at 15 kilowatts (kW) of heat at 240 V ac rms, then we would get the same amount of heat if we applied 240 V of dc instead of ac.

Electrical power system components such as fuses, bus bars, conductors, and thermal elements of circuit breakers are rated in rms current because their main limitation has to do with heat dissipation. If we want to check an electrical circuit for overloading, we need to measure the rms current and compare the measured value to the rated value for the component in question.

If a current clamp is labeled and specified to respond to the true-rms value of current, it means that the clamp’s internal circuit calculates the heating value according to the rms formula. This method will give the correct heating value regardless of the current wave shape.

Certain low-cost current clamps, which don’t have true rms circuitry, use a short cut method to find the rms value.

These meters are specified to be “average responding-rms indicating.” These meters capture the rectified average of an ac waveform and scale the number by 1.1 to calculate the rms value. In other words, the value they display is not a true value, but rather is a calculated value based on an assumption about the wave shape. The average responding method works for pure sine waves but can lead to large reading errors up to 40 percent, when a waveform is distorted by nonlinear loads such as adjustable speed drives or computers. The table below gives some examples of the way the two different types of meters respond to different wave shapes.

Some true-rms clamp meters are ac coupled, which gives the rms value of only the ac component of a waveform. (This dates from the time when a majority of measurements in the electrical industry were predominately sinusoidal with no dc offset.) To measure the rms with an ac coupled clamp meter, first measure the rms value of the ac component. Then measure the waveform on the dc scale. Combine the ac and dc components by squaring each, adding the results, and then extracting the square root. The function AC+DC in Fluke true rms clamp meters essentially does the calculation for you.

Fluke 381: Identifying True RMS

A comparison of average responding and true-rms units

Learn more about True RMS
Fluke Clamp Selection Guide

REED R2300 Infrared Thermometers

This infrared thermometer features a 12:1 distance to spot ratio and is capable of measuring temperatures up to 752°F (400°C). The R2300 is an affordable non-contact measurement solution able to quickly and efficiently measure the temperature of hot, hazardous or hard-to reach objects from a safe distance.

Features

  • Built-in laser pointer identifies target area
  • User selectable °F or °C
  • 12:1 distance to spot size ratio
  • Digitally adjustable emissivity
  • Max and Min readings
  • Backlit display
  • High and low alarms
  • Low battery indication and auto shut off

REED R5400 Line Splitter

Features

  • Enables user to measure AC current on a 2-wire or 3-wire power cord to 15A
  • Fits clamp jaw size 0.75" (19mm) and above
  • Plugging the power connector into the line splitter separates the hot/live conductor from the neutral (and ground)
  • Two measurement sensitivity positions (1X and 10X)
  • Voltage check function

Fluke 381-KIT4 Specifications

Electrical Specifications
Range 999.9 A
Resolution 0.1 A
Accuracy 2% ± 5 digits (10 to 100 Hz)
5% &plusn; 5 digits (100 to 500 Hz)
Crest Factor (50/60 Hz) 3 at 500 A
2.5 at 600 A
1.42 at 1000 A
Add 2% for C.F. >2
AC Current via Flexible Current Probe
Range 999.9, 2500 A (45 to 500 Hz)
Resolution 0.1, 1 A
Accuracy 3% ± 5 digits
Crest Factor (50/60 Hz) 3.0 at 1100 A
2.5 at 1400 A
1.42 at 2500 A
Add 2% for C.F. >2
DC Current
Range 999.9 A
Resolution 0.1 A
Accuracy 2.5% ± 5 digits
Click here for complete specifications on the Fluke 381-KIT4

What's included with the Fluke 381-KIT4

  • Remote Display True RMS AC/DC Clamp Meter
  • 8" (203.2 mm) Flexible Current Probe
  • Test Leads
  • Soft Carrying Case
  • 5 x AA Alkaline Batteries
  • Coated Instruction Card
  • Safety Information Sheet

How to Measure Inrush Current with Fluke 381 Remote Display True RMS AC/DC Clamp Meter


In this video, the user will learn how to measure inrush current with their Fluke 381 clamp meter. To measure a motor or another mechanical device, the dial must be turned to "Amps" and then press "Inrush" to start the measurement to get the data. This device also works with iFlex so that if you're in a tight spot, you can still get your measurement. To do so, hit the "iFlex" button and then "Inrush".

Fluke iFlex™ & Tight Spaces


This short video demonstrates a few applications in which users can benefit from the Fluke iFlex.

How To Select The Best Fluke Clamp Meter


This video will provide a brief overview of a few Fluke clamp meters. This will allow users to get some insight into which meter they need to complete their job based on their specifications.

Fluke iFlex™ Flexible Current Probe


Need a highly flexible current clamp? This short video demonstrates an application in which users can benefit from the Fluke iFlex.

Click on a category to view a selection of compatible accessories with the Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase.





Fluke TLK289 Industrial Master Test Lead Set TLK289
Ideal for electrical and electronic testing in industrial environments. Additionally, the master test lead set is compatible with a variety of meters and extends the meter's capabilities.




Fluke TP1 Slim Reach Test Probe Set TP1
Features hard stainless steel probe tips and one pair of slender probe bodies, which is ideal for probing closely spaced or recessed terminals. Additionally, it comes in a flat blade design to hold securely in blade type electrical wall sockets.




Fluke TL75 Hard Point™ Test Lead Set TL75
Offers the convenience of a test lead and probe-in-one unit with a variety of connections. One pair (red, black) comfort grip probe with PVC insulated right angel shrouded 0.16" (4 mm) banana plugs.




Fluke TL224 SureGrip™ Silicone Insulated Test Leads TL224
These insulated test leads provide the convenience and variety for test lead configurations by attaching clips, hooks and grabbers as needed.




Fluke TL223 SureGrip™ Electrical Test Lead Set TL223
Designed for your comfort so you can focus on taking accurate measurements, this handy all-in-one kit comes equipped with a SureGrip alligator clip set, slim-reach test probes (flat bladed), and SureGrip silicone test lead set.




Fluke AC89 Heavy Duty Insulation Piercing Test Clip AC89
Single probe pierces 0.01 to 0.6" (0.25 to 1.5 mm) insulated wire with a small pin allows self-healing of the insulation, and 1000 V, 10 A maximum.




Fluke AC87 Heavy Duty Bus Bar Clip Set AC87
Comes equipped with one pair (red, black) of flat, right angle design for connecting to bus bars, and CAT III 600 V, 5 A rating, CSA listed. Adjustable collar provides two ranges of jaw openings up to 1.81" (30 mm).




Fluke AC285 SureGrip™ Alligator Clips AC285
Designed to improve steadiness in slippery hands, and is for use with TL222 and TL224 test leads. Rubber over-molded surfaces and finger-hugging curves give a comfortable, reliable grip so you can focus on making an accurate measurement.




Fluke AC220 SureGrip™ Alligator Clips AC220
Designed to improve steadiness with rubber overmolded surfaces and finger-hugging curves. For use with TL222 and TL224 test leads.




Fluke TL175 TwistGuard Test Leads Set TL175
By simply twisting the test lead the user can change the exposed probe tip length from 19 mm to 4 mm (0.75 inch to 0.16 inch).




Fluke LVD1A Volt Light LVD1A
Handy Fluke Volt Light compact LED flash-lights with built-in color responsive AC non-contact voltage detector.




Fluke L206 Deluxe LED Hat Light L206
Three super bright white LEDs never burn out attach to hard hat, baseball cap, or panel door.




Fluke C345 Soft Carrying Case C345
For use with the Fluke 345.




Fluke C550 Premium Tool Bag C550
Tool Bag with steel reinforced frame.




Fluke i2500-18 iFlex Flexible Current Probe, 18" i2500-18
Expands the measurement range of the select Fluke meters to 2500 A AC, and connects directly to the meter, displaying current measurements without error prone scaling factors. The 6' cord allows separation between the measurement location and the clamp meter, and the large loop size and thin cross-section allow the measurement of awkward sized conductors and improved wire access in crowded spaces.




Fluke i2500-10 iFlex Flexible 10" Current Probe i2500-10
The iFlex 2500 is a 10" flexible current probe that offers a measuring capability up to 2500 A AC current and up to 1000 V AC.




Ask a question about Fluke 381 Remote Display True RMS AC/DC Clamp Meter Kit - Includes FREE Products with Purchase

Customer Reviews for the Fluke 381-KIT4

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