Page 6 - Energize March 2021

NEWS

Simultaneous voltage and current

measurements without metallic contact

luke’s T6 instrument with FieldSense technology enables AC current, AC voltage and
frequency measurements to be made on one device at the same time, in real-time without
Fthe need for electrical contact. The T6 is the first handheld test tool using this new patent-
pending technology.

Safer way to test voltage
FieldSense technology eliminates the need for metal-to-metal contact with test leads or alligator
clips, offering a superior level of operator safety. FieldSense takes a measurement of voltage
without voltage flowing through the meter. Instead, the Fluke instrument senses an electrical field
in the open fork to make the measurement.

How FieldSense works
FieldSense technology is truly a breakthrough in how voltage is measured. While the technology
in the T5 detects a magnetic field to derive an AC current measurement, the new technology
detects an electrical field. Fluke Research and Development teams first developed the open-fork
voltage sensing technology, which involves transducing and calculating a known signal to derive
measurements for the source voltage. applications include measurement of loads
This was done by designing the device to generate a reference signal of known amplitude and on a branch circuit at a service panel,
frequency. Then, when grounded, the resulting composite waveform is detected by an electronic measurement of the load side voltage of a
sensor built into the tester. After amplification, processing and digital calculations, voltage and circuit breaker or fuse and the mapping
frequency measurements are derived. outlets to breakers. Industrial applications
For the first time in a Fluke meter, voltage and current can be measured and displayed at the include checking circuit loading at panel
same time. boards (including feeder cables, branch
There’s a vast difference between FieldSense measurement technology and the variety of circuits, and neutrals) and the integrity of
voltage detectors on the market. Those voltage detectors range from pen style devices that a grounding circuit, and the feed circuits
light up when voltage is present to clamp meters that beep or vibrate when a voltage signal is coming into motors (up to 200 A). n
present. The distinction is that a voltage detector generally shows users that voltage is simply
present, whereas the FieldSense technology allows for actual, accurate voltage measurement. Contact Comtest, Tel 010 595-1821,
The T6 finds application in both residential and industrial applications. Residential sales@comtest.co.za

Local distributor expands product range with new agency

omtest, a local distributor of test and measurement customers need to accelerate and secure their digital transformation.
instrumentation to industry, has announced that it now The company’s approach transforms the way organisations plan,
Crepresents Netscout Systems, assuring digital business services deliver, integrate, test, and deploy services and applications.
against disruptions in availability, performance, and security. The
company’s market and technology leadership stems from combining There are three offerings:
patented smart data technology with smart analytics, and is deployed • Test Optimisation is the company’s test and measurement business
across all market verticals including telecommunications, enterprise, unit and provides support for today’s high-performance test labs
military, and healthcare. in their demand for agile test lab automation and infrastructure
Netscout provides real-time, pervasive visibility, and insights management, support for all types of media and network testing
including functional testing, load testing, regression testing,
conformance testing, and production network testing.
• nGenius service assurance solutions provide real-time, contextual
analysis of service, network, and application performance.
• Arbor security solutions protect against DDoS (attacks which
threaten availability and advanced threats which infiltrate
networks to steal critical business assets).

Contact Comtest, Tel 010 595-1821, sales@comtest.co.za n

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