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Fluke Calibration Blog
Calibration Equipment & Standards and Calibration Software
Feb 18, 2016
A current clamp measures current via the non-contact method, making it safer and less troublesome to acquire a measurement. It usually has additional measurement functions such as voltage and continuity. A clamp meter typically requires an annual calibration to ensure that it continues to make measurements within the manufacturer’s specifications.
Here are 7 important things to consider when calibrating a clamp meter:
1. Clamp meters come in all shapes and sizes. Ergonomics and...
Feb 09, 2016
A temperature probe is typically ordered with a termination that matches the calibration equipment it will be used with. For example, a 5615 Secondary Standard PRT used with a 914X Field Metrology Well would be ordered with a type A termination (INFO-CON DIN 6-pin).
If you want to use this 5615 probe with a different readout like a 1524 Reference Thermometer that does not accept a type A termination, what do you do? Check out our Probe-to-Readout Adapter Guide » to see which adapter is needed....
Jan 21, 2016
Why calibrate?
A digital multimeter (DMM) is one of the most commonly used pieces of test and measurement instrumentation. Quality processes depend on its continual proper operation. However, time, environment, and physical use (or abuses) change a DMM’s characteristics. That’s why it’s important to periodically calibrate or verify the performance of a DMM.
We’ve published an application note, “Why calibrate test equipment?” that provides more detailed information about calibration and why it...
Jan 08, 2016
When an instrument is calibrated, the measurements should be traceable back to a common standard such as the international system of units (SI). By definition, one cannot have a traceable measurement without uncertainty, which means we have to estimate it and communicate it in each step of the traceability chain. If traceability is important to you, then you must be able to understand and quantify uncertainty.
Estimating measurement uncertainty is one of the most challenging tasks that...
Jan 05, 2016
If one of your resolutions for the New Year is to learn something new, you will find many opportunities at Fluke Calibration to do just that. Some offerings are completely free, while other are more in-depth and carry a price tag.
Here is an overview of opportunities for learning at Fluke Calibration:
Fluke Calibration web seminars
This free web seminar program offers a robust schedule of courses where you will learn principles and practical tips about electrical, flow, pressure, RF and...
Dec 15, 2015
Fluke endeavors to build the world’s most accurate, rugged and reliable test equipment. Our products are calibrated to be traceable to the International System of Units (SI) through intrinsic standards or National Metrology Institutes. (Note: It is not possible for some Fluke Biomedical products to be traceable to the SI and in those cases the calibrations are traceable to consensus standards). However, all electronic components and mechanical devices exhibit drift over time. To ensure that...
Aug 25, 2015
To calibrate an industrial temperature sensor like a PRT, RTD, thermistor, or thermocouple, you put the sensor into a stable industrial temperature readout like a dry-well, furnace, or calibration bath, and then compare the sensor’s output to the output of a reference standard probe connected to a thermometer readout. There are many different types of reference standard probes and thermometer readouts, and many ways to combine them, so knowing what to purchase can be a little confusing. We can...
Jul 22, 2015
Coaxial cables are common throughout RF and microwave calibration, representing significant investment as precision cables can be very expensive. Choosing an appropriate cable type is often critical to successfully making accurate, repeatable measurements. Characteristics of the cable, the connectors, and the attachment of the connectors to the cable all contribute. The key characteristics are attenuation, phase shift (delay) and match, and their stability with time, temperature and flexing/...
Jul 09, 2015
Pressure controllers / calibrators, also referred to as pressure controllers, are pressure standards that combine digital reference pressure standards with hardware to automatically set and control pressure. Pressure controllers are typically bench-top systems, but can sometimes be fixed (rack), portable and/or transportable.
Here are six reasons why a pressure controller/calibrator might be just what you need to calibrate pressure:
1) Ease of use – Generating and measuring a pressure is as...
May 28, 2015
Thermocouples are broadly used in many industrial and scientific applications. But it can be a bit tricky to understand how they work and how to calibrate them.
We've developed a thermocouple application note series created by temperature calibration experts to help you learn what you need to know. The series covers how thermocouples work, choosing calibration equipment, calculating uncertainties, and how to calibrate thermocouples.
There are four application notes in the series:
Thermocouple...