Electricity + Control March 2015

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ROUND UP LIGHT + CURRENT
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
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
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
51 March ‘15 Electricity+Control