The Fluke 87-V: ideal for accurate measurements at variable speed drives and in industrial environments
Technological advances now allow accurate electrical measurements to be taken during installation and maintenance using a digital multimeter (DMM), allowing technicians to diagnose problems that lead to premature failure.
Fluke 87-V digital multimeter
Historically, no digital multimeter could accurately measure AC drives until Fluke released the new version, the 87-V.
The Fluke 87-V has all the features you would expect from a multimeter. It measures voltages up to 1000 V AC and DC and current up to 10 A AC and DC. In addition, it can measure resistance (up to 50 MOhm), capacitance (up to 10000 µF) and frequency up to 200 kHz. Also notable is the large clear display that allows you to easily read the measured values. However, the most innovative feature of the Fluke 87-V is its ability to measure frequency-controlled motors. With an "ordinary" multimeter, you will find that the value read out may differ significantly from the value indicated on the display of your frequency converter. This is due to the complexity of the signal.
Built-in filter
This is because the frequency controller outputs a pulse-like signal with a high switching frequency (more kHz) and a low control frequency. An RMS multimeter is going to calculate the RMS value of this signal but this is not the value as the motor experiences the signal. Because of the impedance of the motor, it turns this "high frequency" signal into a low frequency sinusoidal signal. You also observe this if you were to visualize the waveform of the current on a ScopeMeter. The Fluke 87-V has a built-in filter so that it displays the value as measured by the motor. Therefore, the Fluke 87-V becomes the tool of choice for every maintenance technician in industry.
Stay up to date with the latest news:
-
Siemens - Revolution in Motion ControlRead moreYou are at the start of a new working week. While you are putting the finishing touches to an important project, a request comes in: the customer has a malfunction. The machine is down, but the deadline is approaching. You are asked to respond quickly.
-
Phoenix Contact - Click, click, doneRead moreIn the world of industrial automation, it is essential to have reliable and future-proof cable connections. The latest innovation, the M12 distributor boxes with Push-Pull quick-release fastening (SACB), is designed to meet this growing need. These distributor boxes are easy to install and offer maximum flexibility and reliability.
-
Leuze - The mini Safety Laser Scanner RSL200Read moreThe smallest scanner ever is now available, about the size of an orange: suitable for the highest safety level PLd/Cat.3/SIL2 and offering optimal ease of use, not only in stationary installations.
-
Rittal - Complete DirectRead moreRittal's Compleet Direct series offers a fast and flexible solution for IT environments where efficiency and reliability are key. Thanks to predefined configurations based on common market requirements, there is always a suitable enclosure solution available. The pre-assembled design saves time during installation and increases ease of assembly. This allows customers to experience a streamlined process from selection to commissioning. Translated with DeepL.com (free version)
Check out our other success stories:
-
Sekisui AlveoRead moreFoam producer Sekisui Alveo has a large factory in Roermond. To support production and maintenance, warehouses and distribution points with thousands of different items are spread across the various halls. Think spare parts, personal protection equipment and consumables. The company cooperates intensively with itsme for management, such as recently with the step-by-step introduction of vendor managed inventory (VMI) for the grab stock of mechanical items.
-
IECRead moreTo control the expansion of a silo park, engineering & construction company IEC called on Breemes. Being involved in the engineering from the beginning, the electrical service provider was able to make smart proposals for both the low-voltage part and the PLC control. ‘We have always been able to find each other well and when changes occurred, we were quickly on the same page with Breemes.’
-
Heliox - Charged for DeliveryRead moreHeliox, a developer and manufacturer of charging systems for electric buses and trucks, was already working with itsme when production still took place in the Netherlands. Today, production has shifted to Slovakia, Portugal, and Moldova, and is also happening in the US. itsme remains the “irreplaceable” partner for the supply of electrical components and cable harnesses.
-
BLOK System SupplyRead moreBlok System Supply and itsme have maintained an intensive relationship for many years. Early last year, this was further deepened with electronic data exchange via the Smart Connected Supplier Network. ‘It saves an enormous amount of time and reduces errors. We always have real-time information automatically.’ However, time for personal contact is not saved. ‘That is precisely what makes itsme a very nice party to work with.’
Why not take a look at these trainings we offer:
-
TIAP-NETWORKRead moreavailable in Dutch