Electricity + Control March 2015

LIGHT + CURRENT

ROUND UP

New remote, simultaneous, recordable wireless test tool system

The Comtest Group , Fluke’s authorisedTest and Measurement distributor for South and southernAfrica, has introduced Fluke CNX, a customisable, troubleshooting tool-set of wireless test tools that work together, recording live measurements remotely and simultaneously on a single screen. CNX Modules measure ac voltage, temperature and ac current with a standard clamp or flex clamp. Possible applications include: o Detection of power interruptions o Single phase measurement o Determining current imbalance o Measurement of incoming current A wireless multimeter displays readings from up to three wireless modules, plus the meter measurement at the same time, on the same screen, from as far as 20 me-

tres away.To get a holistic overview of the situation, readings from 10 tools measure- ments can be reviewed simultaneously on PC View. Users are able to mix and match the wireless-enabled modules to suit their unique measurement needs. The CNX system can record up to 65,000 sets of min/max/avg readings in either single or multiple logging sessions. CNX isolates intermittent events or records signal fluctuations automatically, using the module’s log function. Measurements can be viewed in a location separate from the point of measurement, for safety purposes, as well as be viewed repeatedly from either remote locations or on-site. Enquiries: Comtest.Tel. 010 595 1821 or email info@comtest.co.za

Crane motor protection Hard-working crane motors are designed for specific duty cycles, generally of short duration and in harsh environments. NewElec ’s 330M crane motor protec- tion relay is uniquely designed for each motor, providing overload, phase loss and phase unbalance protection. Amotor thermal indicator meter can be fitted inside the crane operator’s cabin as a working aid to ensure that the crane is never operated beyond its loading limits. The protection relay is selected to suit the CDF of the protected motor and provides accurate overload and unbal- ance protection on full RMS loading. Latched trip LEDs indicate overload and unbalance detection and trip, with a separate trip and thermal lock-out period in process indication. Available for chassis or flush door mount, the relay has a test facility and may be fitted with a manual or automatic reset facility. A thermal trip state indicator is also available as an extra option. Enquiries: Email sales@newelec.co.za

Anti-rust coating seals in savings

The easy-to-apply and environmentally-friendly RustPrufe corrosion protection solution for non-porous surfaces eliminates the need to repair damage to steel surfaces occurring during extended storage periods or shipping and handling.The solution is ideal for industrial and mining applications, and is available through wear control specialist, Filter Focus . Chief operations officer Craig FitzGerald notes that RustPrufe is a painted or sprayed-on acrylic polymer emulsion that dries to form a seamless, skin-tight weather and UV- resistant protective barrier. “Items such as valves, gears, shafts, and motors are often subjected to harsh climatic conditions, and RustPrufe is the most convenient, cost-effective and user-friendly option to ensure that these costly components are not damaged in transit,” he explains. FitzGerald points out that the components do not have to be sanded down or rust treated. “Upon application, the product is peeled off by hand to reveal a clean and rust-free surface. As a result, cost savings during routine maintenance and repair shutdowns are tremendous.” Unlike traditional tape, wax and oil coatings that must be scraped off and cleaned with solvents, RustPrufe does not leave behind a

residue. It is also highly-durable and, should tears or perforations appear, they can be closed by applying the coating to the exposed area with a paintbrush. Enquiries: Craig FitzGerald.Tel. 011 315 9939 or email cfitz@filterfocus.co.za

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