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5560A/5550A/5540A Firmware (update)Key Changes for version 2.00.08:This version applies to all 5540A/5550A and 5560A CalibratorsSpecifications are now available within scope functionsCorrected issues with phase adjustment in AC_POWER and ACV_ACV functionsCorrected issues with remote REFOUT? command to more closely match 5520A operationSpecifications are now available within DCV_DCV and ACV_ACV functionsFixed issue in ACV_ACV function where error 4404 could occurToggling temperature between Celsius...

Fluke experts show you how to calibrate a pressure transducer including a step-by-step pressure transducer calibration procedure, certificate, and tips.

See the key differences between the Fluke 787 vs 789 as determined by Fluke engineers. What are the key feature and spec differences? See the comparison here.

Fluke Connect software on the 377 FC and 378 FC clamp meters allows you to record, analyze, and share results with others. Trend data for preventive maintenance.

Get 3 phase power measurements 50% faster with Fieldsense clamp meters. How to measure 3 phase voltage and current simultaneously.

Best ways to use the 377 FC and 378 FC clamp meter, how FieldSense technology works and ideal applications for front-line technicians and electricians.

Detect basic 3 phase power quality issues with the versatile Fluke 378 FC clamp meter for industrial electricians. Increase productivity and safety without test leads.

The easy-to-use data management and reporting solution.

Baseline and trend your machine health monitoring in one place to analyze and troubleshoot issues quickly and efficiently.

Instantaneous irradiance measurements up to 1400 w/m2. Includes temperature, compass and inclination readings.

Troubleshoot the Problem Problem: A large turbine pump keeps going down before it achieves full power. Action: Locate the problem area. While the pump is still running use the 279 FC Thermal Multimeter to do a quick thermal survey using the IR camera to look for hotspots at the panel, disconnect and the pump motor itself. If something looks unusual, press save using the Fluke Connect® button and note the location. If nothing looks unusual increase the speed of the pump until it fails while surveying...

440 milliamp fuse assumbly replacement for Fluke 28 II Ex intrinsically safe digital multimeter

Fuse replacement for Fluke testers including the Fluke 1507 and Fluke 1503.

The need to measure three-phase electrical systems has become increasingly important, especially for simple energy surveys, more complex power quality troubleshooting, or overall electrical performance studies on individual electrical equipment such as transformers and motors. However, taking three-phase measurements can be dangerous as you need to open electrical panels and put on proper personal protective equipment (PPE). The top risks can carry severe penalties, whether it's personal injury or...

A proving unit is a battery-powered portable device that serves as an electronic voltage source to safely verify the operation of an electrical test tools such as a digital multimeters (DMM), clamp meters or other electrical testers.   Proving units can be used to satisfy elements of the 2018 edition of NFPA 70E 110.4E, which states, "When test instruments are used for testing the absence of voltage on conductors or circuit parts operating at voltages equal to or greater than 50 volts, the...

Set the digital multimeter (DMM) to measure frequency. The steps can vary by meter. Usually a multimeter’s dial will be turned to dc V and the Hz button is pressed. The DMM is ready to measure duty cycle when a percent sign (%) appears in the right side of the multimeter’s display. First insert the black test lead into the COM jack. Then insert the red lead into the V Ω jack. When finished, remove the leads in reverse order: red first, then black. Connect the test leads to the circuit...

table.custom-table { border-collapse: collapse; } table.custom-table td { border: 1px solid #ccc; font-size: 14px; text-align: center; } table.custom-table td.text-left { text-align: left; } @media only screen and (max-width: 768px) { table.custom-table td { font-size: 12px; word-wrap: break-word } } This guide will take you through the basic anatomy of a digital multimeter. The more familiar you become with your own digital multimeter, the more valuable it will become as you are able to maximize...

Whether you troubleshoot and maintain electrical distribution, HVAC, or rotating equipment you probably use a digital multimeter regularly. You may also use an infrared camera, or thermal camera to help you troubleshoot. The problem: Carrying two separate tools or having to go back to the shop to grab the thermal camera. Adding even more tools to a heavy tool bag or taking time away from the work to be done. The solution: A thermal multimeter, or thermal dmm, is both a digital multimeter and a thermal...

By Brian Harrison According to a Fluke 2019 survey, roughly 50 percent of maintenance and reliability professionals were actively planning Industrial Internet of Things (IIoT) initiatives. This survey preceded the challenges brought about by COVID-19. At the time, more than half of the teams interviewed found the IIoT process to be more complicated than anticipated because of an essential prerequisite—collaboration with other teams and departments. Despite the business disruption caused by the...

Continuity is the presence of a complete path for current flow. A closed switch that is operational, for example, has continuity.  A continuity test is a quick check to see if a circuit is open or closed. Only a closed, complete circuit (one that is switched ON) has continuity.  During a continuity test, a digital multimeter sends a small current through the circuit to measure resistance in the circuit.  A meter with a continuity beeper briefly sounds off when it detects a closed circuit. The...

Learn how to test continuity using a digital multimeter.

Steps for using a multimeter in the Diode Test mode.

Steps for measuring ac voltage with a digital multimeter.

Resistance is measured using analog or digital multimeters. These tools also measure current, voltage, and more for various applications. Why measure resistance? To determine the condition of a circuit or component. The higher the resistance, the lower the current flow, and vice versa. In general, the resistance of components used to control circuits (such as switches and relay contacts) starts out very low and increases over time due to factors such as wear and dirt. Loads such as motors and solenoids...

Circuits and equipment may be designed to operate at a fixed or variable frequency. They may perform abnormally if operated at a different frequency than specified. For example, an ac motor designed to operate at 60 Hz operates slower if the frequency is less than 60 Hz, or faster if frequency exceeds 60 Hz. For ac motors, any change in frequency causes a proportional change in motor speed. A five percent reduction in frequency yields a five percent reduction in motor speed. Some digital multimeters...

Turn dial to dc voltage. Some digital multimeters (DMMs) also include dc millivolts. If uncertain of which to choose, start with dc voltage, which handles higher voltage. First insert the black probe into the COM jack. Steps for measuring dc voltage with a digital multimeter Then insert the red probes into the V Ω jack. When finished, remove the probes in reverse order: red first, then black. Connect the test probes to the circuit: black to the negative polarity test point (circuit ground),...

Guide to clamp meter symbols, buttons, display and dial functions.

How the ii900 Acoustic Imager air leak detector can help you find the root cause of equipment issues and prevent costly downtime.

Oscilloscopes (or scopes) test and display voltage signals as waveforms, visual representations of the variation of voltage over time. The signals are plotted on a graph, which shows how the signal changes. The vertical (Y) access represents the voltage measurement and the horizontal (X) axis represents time. Sampling Sampling is the process of converting a portion of an input signal into a number of discrete electrical values for the purpose of storage, processing and display. The magnitude of each...

Learn both the traditional manual method and the new automated method of properly displaying a waveform on an oscilloscope. 4 example waveforms illustrated.

The difference between an oscilloscope and a digital multimeter (DMM) is simply stated as pictures vs. numbers. Learn more, including when to use each.

On-the-spot temperature checks using portable thermometers are frequently performed in the field by technicians in order to ensure product quality.

Fluke engineers its clamp meters to withstand a high degree of unconventional use—as a wedge, makeshift pliers, nutcracker, whatever a tech might dream up in a moment of need.

Basic information about what an oscilloscope is and how the test instruments are used in industrial settings for preventive maintenance and troubleshooting.

Types of clamp meters

Includes clamp, leads, grounding clip, iFlex high-current probe, magnetic hanging strap, premium carrying case.

Get accurate voltage and current measurements through the clamp jaw.

Thermocouples and RTDs are the most common sensors used in process temperature measurements. Simulating a process sensor signal into a process instrument or control system input enables a technician to verify whether the device responds correctly to the temperature measured by the instrument. There are many ways to perform RTD and thermocouple simulation for testing purposes. You can use a mV dc source and a mV vs temperature look up table for simulating thermocouples or a resistance decade box...

256 x 192 IR resolution, asset tagging, voice annotation, IR-PhotoNotes and touchscreen IR-Fusion.

Fluke’s assortment of clamp meters has been engineered to address a wide variety of needs, from routine tasks to specialty projects.

An interior view of a Fluke 325 clamp meter

Clamp meters with flexible coil probes can fit into tight spaces

Fluke’s assortment of clamp meters has been engineered to address a wide variety of needs, from routine tasks to specialty projects.

Measuring ac current with a clamp meter’s jaws. Note: Current flowing in opposite directions cancels each other. If current is moving in opposite directions, place just one conductor within the clamp during measurement.

Fluke multimeters tested by Adam Savage. Trusted tool recommendation for budget multimeter review.

Locate potential mechanical problems in conveyors and partial discharges in electric grids.

See the advantages of automating temperature calibration, different ways to achieve automation, and the general steps required. Plus, see related resources.

Temperature transmitter calibrations are often performed without taking into account temperature sensor performance. For many processes this has been an acceptable practice, although the sensor typically contributes more errors than the transmitter. This practice can be problematic for critical process measurements or those that need a higher degree of confidence or accuracy. Testing the transmitter and its respective process sensor together provides a more complete test. If performed with the proper...

Temperature switches and controllers are commonly used in small processes and in control loops where a programmable logic controller (PLC) or larger distributed control system (DCS) are not warranted. Temperature controllers provide both switching capability based on rising and dropping temperatures, as well as a local indication of the measured temperature. Most temperature controllers have some form of tuning, using damping and PID (Proportional, Integral and Derivative values) for smoothing out...

Grounding errors can cause electrical shock, fires, equipment damage, and power quality problems that can cause systems, circuits, and equipment to operate improperly.

Custody transfer operations in the oil and gas business requires some of the most precise measurements in all of industry. As part of custody transfer, technicians routinely calibrate all the pressure and temperature transmitters involved in the flow of oil and gas as well as the pressure in the pipelines and related equipment themselves. Fluke offers both handheld and desktop precision pressure calibrators and test gauges accurate and rugged enough for gas and custody applications. Plus, many of...

Learn how using Fluke airborne particle counters in healthcare facilities helps meet IAQ standards and contamination testing.

In any electrical installation, some current will flow through the protective ground conductor to ground. This is usually called leakage current. Leakage current most commonly flows in the insulation surrounding conductors and in the filters protecting electronic equipment around the home or office. So what’s the problem? On circuits protected by GFCIs (Ground Fault Current Interrupters), leakage current can cause unnecessary and intermittent tripping. In extreme cases, it can cause a rise in voltage...

Open/short circuit detection up to 8,000 feet (2.4 km).

Ergonomically designed handle providing 1-1/2 times the cutting force.

Test leads with bed of nails set of banana jack leads.

Heavy-duty cloth padded and lined IntelliTone case.

Filtered probe obstructs signal of 60 Hz interference.

Tone generator with alligator clips and RJ11 plug.

Send tone signal up to 10 miles (16 km) on most cables.

Ergonomic sleek design, 3.5 mm headphone jack.

Analog tone and unfiltered probe kit for tone and trace on inactive wiring.

Testing medical gases and piping systems in healthcare facilities and hospitals presents multiple challenges for maintenance teams. Learn why efficient leak detection is critical.

Learn how to avoid calibration drift on control valve positioners as part of your preventive maintenance program.

Pairing a Fluke dry well with a handheld documenting calibrator allows for a complete field temperature sensor calibration solution.

How to find hot spots in electrical systems using a thermal camera. Learn what to look for and understand what causes emissivity anomalies during inspections.

Using a megger for insulation resistance testing capacitors and high voltage components.

Best tools for monitoring heat loss, detecting moisture, indoor air quality and HVAC systems to improve energy efficiency in commercial buildings.

Keeping all the components of a facility running safely and efficiently is no easy task. And nobody knows that better than maintenance managers. Tracking the operational health of all those components is key to preventing unexpected failures and costly downtime. The trouble is, routine maintenance checks often miss recurring problems. If maintenance technicians aren’t taking readings at the right moment, an intermittent fault can go undetected until it escalates into a full-fledged failure. The...

Discover how to use a thermal camera for tank level measurement and inspection. See practical tips for getting the best thermal readings.

A thermal imaging program is a powerful tool in both preventive maintenance and when troubleshooting critical equipment; both of which can save time and money. Adding thermal imaging inspections is a huge upgrade in your ability to detect and fix issues before unexpected downtime occurs. Thermal imaging in your business Working in maintenance, you already have broad experience with many types of equipment and failure scenarios. Your experience, combined with a thermal camera and some basic training,...

The Fluke 289/ i400 AC Current Clamp Combo Kit is an industrial multimeter service kit. Together, they help solve complex problems in electronics, plant automation, power distribution, and electro-mechanical equipment.

Solar installer jobs are in high demand. Learn how to become a solar panel PV installer or solar energy technician and join the growing renewable energy industry.

EVERETT, Wash., Sept. 17, 2019 – Fluke introduces its newest, most compact laser distance meter yet—the 417D Laser Distance Meter. The 417D speeds up layouts with instant, one-button measurements up to 131 feet (40 meters) and an accuracy of 0.08 inches (± 2 mm). This ultra-portable meter increases measurement efficiency while maximizing the reliability of measurements by reducing estimation errors, saving time and money. Designed for indoor and outdoor applications, the palm-sized 417D features...

Ideal for HVAC, mechanical and electrical inspections. 2-meter drop tested, IP54 water/dust resistant, with a 16+ hour battery.

Ideal for industrial preventive maintenance programs. Features LaserSharp™ AutoFocus and 320 x 240 resolution.

Solar energy expert guidance on how to design and commission a photovoltaic system for maximum performance including longevity of equipment, safety and ROI.

HVAC technology true-RMS meters are essential test tools for accurately measuring and troubleshooting complex HVAC control systems.

Using Fluke tools for energy efficiency and cost savings. How the Figge Art Museum automated their HVAC control systems, reduced energy consumption and saved on annual energy costs

Many facilities, such as power plants or production facilities, depend on a strong preventive maintenance program. These programs are essential to keep processes running safely and efficiently.

90 percent of machine faults fall into four main categories: misalignment, imbalance, looseness, or bearing wear. Using root cause analysis can help you identify where a problem began and what caused it.

Insulated hand tools provide critical safety protection for electricians and technicians who work with live electrical equipment.

Insulated electrical tools are critical for electrical safety.

The Fluke tools roll up pouch is designed for 3 pliers and 5 screwdrivers. Roll up tool pouch design with hook and loop closure to keep tools organized.

Keep your tools together and within reach in your tool bag.

Oscilloscopes sample signals as they change over time and then plot those signals on a display. The amplitude of the signal is plotted on the vertical axis and time is displayed on the horizontal.

Learn how to improve power factor, including specific solutions for different root causes of poor power factor.

According to the U.S. Occupational Safety and Health Administration’s (OSHA) Recommended Practices for Health and Safety Programs, a 50-person plant typically can increase productivity by 13% and save more than $265,000 in faulty products by implementing a rigorous safety and health program.

The Fluke 810 Vibration Tester locates and identifies the four most common types of mechanical faults and allows for quick and easy assessments of overall machine health.

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Learn the difference between single-phase and 3-phase power supplies, including uses and configurations.

Find out how air leak detection equipment prevents downtime for a 150,000 square foot plant that runs approximately 400 tools on compressed air, produced by a 200-horsepower compressor.

What is power factor and why is it important? Learn how to calculate the power factor formula, each component of the equation, and why it matters.

When troubleshooting failed assets, the first tool you’ll reach for is a non-contact voltage detector, also known as a voltage tester. These pocket-sized detectors immediately identify the presence of voltage.

Source, simulate 4 to 20 mA signals, and provide loop power

The Fluke 709H mA loop calibrator is designed to save time and produce high-quality results. The 709H has HART communication and supports a select set of the HART universal and common practice commands.