The digital multimeter (DMM) is a mainstay of electrical troubleshooting and the tool that most of us reach for first. They are versatile devices that can measure electrical properties including voltage, current, and resistance. Multimeters can also quickly identify faults, shorts, and open circuits, as well as test components like capacitors and resistors.They’re especially helpful when troubleshooting issues in variable frequency drives (VFDs). VFDs are a type of motor controller that adjusts...

Troubleshooting electrical components is a necessary part of keeping equipment functioning. The best tool to use for preliminary troubleshooting in a DC power supply is a digital multimeter (DMM).Digital multimeters are easy to use and can measure voltage, which is important for pinpointing problems with a DC power supply. Here, we’ll discuss the basics of DMMs and how to check the input and output voltages on a DC power supply when troubleshooting.Understanding Digital MultimetersDigital multimeters...

By Michael Crepps, Fluke Product Application SpecialistPreventive maintenance is critical in industrial plants to ensure the reliability and longevity of electrical systems. Regular inspections and maintenance help to identify potential issues before they become significant problems, minimizing downtime and enhancing safety. A wire tracer is an essential tool for preventive maintenance, allowing technicians to accurately locate and assess the condition of electrical wiring. This application note...

A multimeter is arguably the most important tool an electrician has in their toolbelt and the first thing most reach for in the beginning phases of troubleshooting. When identifying issues with rotary encoders in conveyor systems, the multimeter can help detect a range of problems before turning to more specialized equipment.In this article, we’ll discuss how to use a multimeter to troubleshoot rotary encoders and walk through step-by-step instructions.Understanding Rotary EncodersA rotary encoder...

By Sean Anderson, Fluke Application SpecialistImagine you’re on an oil rig, surrounded by salty sea spray and high winds. Or perhaps deep underground at a mine where dust threatens to impair your tools. In these environments, a standard digital multimeter (DMM) simply won’t cut it. That’s why selecting the right one that meets the stringent requirements for durability and safety that align with where you work is essential.This guide evaluates how four standout Fluke DMMs—the 87V, 87V MAX,...

IntroductionFluke Calibration provides calibration and repair services for the former Hart Scientific line of temperature calibration equipment. Calibration and repair services for baths and industrial calibrators are provided in Everett, Washington, while digital thermometer readouts, 4180 and 4181 infrared calibrators, temperature probes (SPRTs, PRTs, thermistors, reference thermocouples) and other reference standards are calibrated and serviced in American Fork, Utah.Complete an online request...

Fluke Calibration offers instrument repair and calibration services for electrical and RF calibration equipment through our accredited calibration laboratories in Everett, Washington (see our Authorized Service Centers page for service outside of the US). Our prices are competitive and our turnaround times are excellent.Equipment types include:Frequency countersMulti-product and multifunction calibratorsVoltage, current and resistance calibratorsProcess calibratorsStandard resistorsZener reference...

Good insulation resistance in a metal sheathed platinum resistance thermometer (PRT) probe is important for obtaining accurate and stable temperature measurements. If a probe is cycled frequently between hot and cold temperatures, its components become fatigued over time, and moisture can leak through the sheath seal at the probe handle. This is a common cause of decreased insulation resistance and noisy measurements.Cold temperatures allow moisture to leak through the sheath seal into the probe’s...

Hart Scientific temperature calibration is part of Fluke CalibrationHart Scientific has been a member of the metrology community for over 30 years. Now, under the Fluke Calibration name, it continues to be a leading manufacturer of temperature calibration and measurement equipment. Our experience in temperature calibration goes back 30 plus years and, as Fluke Calibration, we will still be here 30 years from now.Our customers include metrologists, engineers, technicians, researchers, and quality...

Based on a white paper by Neil Faulkner and Jeff Gust, Fluke CalibrationFluke 8588A Reference MultimeterAbstractHistorically, analog null meters, also called analog null detectors, have been used to determine zero voltage conditions in metrological applications. When digital multimeters (DMMs) became available with sensitivity comparable to null meters, they were adopted quickly, and analog null meters were set aside. However, depending on the circuit and the DMM, significant measurement errors can...

Whether you're simulating thermocouples or calibrating thermocouples directly through comparison methods, Fluke offers the most comprehensive selection of quality thermocouple calibrators on the market, including thermocouple simulators, handheld multifunction calibrators, temperature sources such as dry-block calibrators and liquid baths, thermocouple reference Standards, and thermocouple readouts.Thermocouple calibration product catagories include:Handheld thermocouple calibrators and simulatorsComparison...

A collection of helpful resources for temperature calibration in manufacturing and industry.If you would like to get a quote on a new temperature calibrator, you can do that here:Request a quoteTemperature Calibration ToolsIndustrial Temperature Calibration Selection GuideSelection guide featuring tools for industrial instrumentation and calibration technicians.Thermocouple Table Voltage CalculatorSelect one of the 8 letter-designated thermocouple types from the console, type any temperature within...

工业铂电阻检定方案完全符合国家最新JJG229-2010工业铂铜热电阻检定规程。拥有多种方案，满足多种需求

Table of ContentsWhat is a calibrator?How is a calibrator used?Why is calibration important?When did people start using calibrators?What are the different types of calibrators?Who uses calibrators?How often should a calibrator be used?How do you automate calibrators?When should you upgrade an old calibrator?What is the price range of calibrators?A Variety of CalibratorsWhat is a calibrator?A formal and technical definition of “calibrator” is “a measurement standard used in calibration.” This...

There are three common methods for calibrating temperature sensors:Calibrating just the electronics with a simulatorCalibrating both the electronics and the sensor in a dry-wellCalibrating both the electronics and the sensor in a dry-well with a reference thermometerHere is a quick look at these methods and the pros and cons of each.Calibrating just the electronics with a simulatorTo calibrate the electronics of a temperature measurement/control system, a temperature simulator takes an input temperature...

If you are calibrating a medium to high accuracy RTD, you will probably use the characterization method of calibration. Characterization is the type of calibration in which the device under test (DUT) resistance is determined at several temperature points and the data are fitted to a mathematical expression.To calibrate an RTD, perform these steps:Place the reference probe and the DUTs in the temperature source. Make sure they are all placed as close together as possible, in a radial pattern with...

Table of ContentsWhy is calibration important?The importance of calibration in the futureDifferent perspectives on the significance of calibrationThe benefits and purpose of calibrationWhat are the costs and risks of not calibrating?Summary / TL;DRWhy is calibration important?Calibration is important because it helps ensure accurate measurements, and accurate measurements are foundational to the quality, safety and innovation of most products and services we use and rely on every day.Few people realize...

World Metrology Day 2013A message from Fluke Chief Corporate Metrologist Jeff GustScientists and engineers dedicated to metrology (the science of measurements) celebrate May 20 as World Metrology Day. On May 20 1875, representatives from seventeen nations signed an international treaty to coordinate weights and measures activities internationally and to support the development of the metric system. The theme for World Metrology Day 2013 is “Measurements in daily life.” In keeping with this year’s...

工业铂电阻检定方案完全符合国家最新JJG229-2010工业铂铜热电阻检定规程。拥有多种方案，满足多种需求

新的铂铜热电阻检定规程JJG229-2010 和水银温度计检定规程JJG161-2010 规定，在检定A A 级和A 级工业铂电阻和标准水银温度计时必须实测标准铂电阻的水三相点值，这就要求实验室必须拥有一套使用方便、经久耐用的水三相点系统。如果没有水三相点系统，就不能够建标完成对A级和AA级热电阻的检定。水三相点系统包含性能优良的水三相点以及支持二等标准铂电阻测量准确度的测温仪

热电阻自动检定系统可实现对于工业热电阻的自动检定。系统中包含检定所需的恒温槽、测温仪、软件以及必要的连接插头。由全国温度计量技术委员会主持起草的新的工业铂铜热电阻检定规程，即JJG229-2010已经正式发布。这个新的规程是用来替代原来的JJG229-98规程。新规程的发布显然会带来检定方法，手段等方面的变化。

MET/TEMP II Software Download (.exe)TITLEVERLinksMET/TEMP II5.2Product PageDescriptionWhen downloaded, this file can be run to install MET/TEMP II. There is no free demo/trial version of 5.2. In order to install MET/TEMP II v5.2, you must purchase the software and obtain a serial number. The installation process prompts you to enter the serial number. Version 5.2 does not accept serial numbers from previous versions of MET/TEMP II. The serial number will be located on a sticker on the CD pouch....

8588A & 8558A Firmware, Update by USB (.zip)TITLEUSE WITH8588A & 8558AAllThe updating of embedded software should only be performed after given specific instructions to do so from Technical Support or a Fluke Calibration Authorized Service Center.If the update isn't performed properly, your product may be inoperable until it is.Instructions to update by USBFluke 85xx update v1.32To update a Fluke 8588A/8558AAn empty USB stick (of greater than 10Mbytes) will be required. This should be formatted using...

5320A Firmware Upgrade (.zip)Additional Downloads:5320A Uploader (.zip)5320A Multifunction Electrical Tester Calibrator Firmware UpgradeGeneral description5320A firmware upgrade ver. (3.43-1.34-2.43-1.01---2-9-2015) solves an issue in RCD trip current function and adds information lines to substitute leakage current screen.New features and enhancements1. Firmware“Substitute leakage current” function contains additional information on screen:Added line Rsubst with value of resistance connected...

In this guide, we will explore how to use a multimeter to perform various measurements and tests. Multimeters are versatile tools used by electricians and hobbyists alike to diagnose electrical problems and ensure the proper function of electrical devices. We'll explain how to measure AC and DC voltage, test for continuity, measure capacitance, measure frequency, and test diodes. Though the exact procedures may vary slightly depending on the specific multimeter model, the fundamental principles...

Manufacturing requires accuracy for consistent outputs. But that isn’t easy to achieve if you don’t know what your inputs are. While instrument calibration may only slightly affect inputs, that can still significantly impact your outputs, the longevity of your equipment, and more. Calibrating your equipment ensures your readings are accurate and allows you to make necessary adjustments or repairs before any issues arise.Instrument readings can change over time as instruments are exposed to harsh...

Temperature plays a key role in many industrial and commercial processes. Examples include monitoring cooking temperature in food processing, measuring the temperature of molten steel in a mill, verifying the temperature in a cold storage warehouse or refrigeration system, or regulating temperatures in the drying rooms of a paper manufacturer.A temperature transmitter will use a measuring device to sense the temperature, and then regulate a 4-20 mA feedback loop to a control element that affects...

In today’s rapidly evolving industrial landscape, the role of the industrial plant maintenance technician is becoming increasingly central to ensuring operational efficiency, sustainability, and a strong return on investment for industrial equipment. As companies pivot towards integrating more sustainable energy sources and technologies, such as on-site solar power generation and Electric Vehicle Supply Equipment (EVSE), the skillset and toolkit of maintenance technicians must evolve accordingly....

Temperature measurement is a critical parameter in many industrial processes. As a result, these processes generally use installed thermometers or temperature transducers. Proper calibration of these installed systems has always presented a challenge. Traditionally, simulators are used to provide in-situ calibration of the electronic portions of these systems. Although this is a valid technique for the calibration of the electronics, considerable inaccuracies are introduced by the sensor itself.The...

Typical specifications for dry-well thermometer calibrators may not provide all the uncertainty information the users need to know. This paper defines other important criteria for making accurate thermometer calibrations using dry-well or “dry-block” calibrators including stability, radial uniformity, axial uniformity, hysteresis, immersion depth, differences in block loading, use of external references, etc. Examples are provided along with information on how measurements can be made and used.Fluke...

Industrial temperature measurement and control are two of the most dynamic subsets of the process control industry. Sensors are manufactured in every size, shape, length, and accuracy imaginable to fulfill a specific temperature application. In many cases, probes and probe assemblies are chosen not based on the application’s success, but on other factors such as price, expediency, or availability.The calibration of an industrial temperature sensor should be well thought out in the early design...

What is Shaft Alignment? Shaft alignment is a crucial process in maintaining and operating various types of machinery, including pumps, motors, and fans. It involves aligning the rotational centers of mechanical shafts to ensure they form a straight line. Proper alignment is essential for the efficient operation of rotating machinery. Misalignment, even at minimal levels, can lead to significant issues, such as increased vibration, premature wear of parts, and, ultimately, machine failure. Why is...

While a voltmeter and a digital multimeter may seem similar at first glance, they are actually quite different tools with distinct advantages and disadvantages. If you need to measure voltage with a high degree of precision, a voltmeter is likely the best tool for the job. However, if you need to measure multiple electrical quantities and want a more versatile tool that can provide additional features like data logging, a digital multimeter is probably the better choice. What type of voltmeter...

Every HVAC technician knows that no two jobs are the same. One day, you might be troubleshooting a failing compressor in a rooftop unit, and the next, balancing airflow in a residential home with uneven heating. Each specialty — residential, commercial, and industrial HVAC — comes with its own challenges and tool requirements.The Fluke 902 FC HVAC Clamp Meter in action.Every technician needs accurate, reliable tools designed for the specific demands of their work. But before choosing tools based...

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...

福禄克的各种钳形仪表经过精心设计，可满足从日常任务到专业项目的各种需求。

测量工具: Fluke 1550C高压绝缘电阻测试仪 操作人员: ASI Robicon，高功率VFD制造商 执行的测试: 可控硅整流器电压、可控硅整流器热试验、IGBT开关、电容 ASI Robicon Perfect Harmony水冷变频驱动(VFD)。 Tom Lasek是ASI Robicon的一名现场工程师，该公司是领先的高功率固态变频驱动制造商，支持高达20000 HP的控制工业交流电机，输入电压高达13,800 V。Lasek的职责包括高功率驱动系统的安装/调试、一般性预防维护和故障诊断。他几乎每天都使用Fluke...

Classic methods for pressure switch testing have been superseded with the introduction of new pressure test tools. Today most pressure switches are tested with a pressure gauge mounted to a pump to supply and measure pressure, and a digital multimeter set to continuity to verify the opening and closing of the switch. The technician or electrician making the test is required to interpret the pressure applied to the switch when the continuity beeper sounds indicating contact closure of the switch....

如果电机和动力电缆会说话，它们会说些什么呢？它们可能会告诉你什么时间需要维护，或者提醒你时常对其进行检查。当然，电机不会说话。因此，福禄克开发了Fluke Connect®应用程序，支持手机或平板电脑通过无线方式连接到福禄克绝缘电阻测试仪。凭借方便访问的数据，您可了解电机的状态，并与其他位置的同事或专家共享数据。

From November 20 to 22, 2017, Fluke, the world leader in electronic test tools, brought its electronic instrumentation products to the 2017 Shanghai International Power Exhibition. Among them, Ti450 SF6 gas leak detection thermal imager, Fluke1535 2500V high voltage insulation tester, Fluke 1748 mobile online power quality analyzer, DSX-8000 CH and other star products debuted by the spotlight.  (Fluke booth) Ti450 SF6 Gas Leak Detector The Ti450 SF6 gas leak detection thermal imager can visualize...

启动蓄电池广泛应用于汽车、摩托车、发电机等通用设备中，用于设备的启动，蓄电池作为其中重要的部件，耐久性测试非常关键。

Power and distribution panels and their nearby wiring are a frequent starting point for technicians when electrical disruptions require troubleshooting. Voltage and current are two of the most common electrical measurements taken at panels and the surrounding wiring. To isolate specific problems, a technician may also want to test for continuity or measure peak voltage, peak current, minimum/maximum voltage (or current) over time, temperature, harmonics, power factor, transient voltage, temperature...