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‘4-20ma Signals’

An Engineeringtalk guide

Start with the news release Safety relays simplify control-system design from Eaton Corp, which we summarised at the time by saying "Safety relays in the Eaton Moeller ESR5 range simplify the design and implementation of control systems that meet safety and reliability standards.". Several months prior to that, we featured the news release Accelerometers obtain hazardous-area certification from Wilcoxon Research: "Wilcoxon Research has announced an additional intrinsically safe certification in accordance with IECEx requirements for six general-purpose accelerometers.".
 
In November 2009, we covered the news from Freudenberg Simrit LP - take a look at Pitch gears with intelligent shaft sealing which says: "Simrit has developed a radial-shaft seal system featuring a leakage sensor that allows for telediagnosis of the shaft seal and automatically sends a signal when the seal's wear limit is reached. ".
 
Take a look also at the news release from RDP Electronics, RDP transducers give direct analogue output, as well as Stemmer offers high-resolution image capture card from Stemmer Imaging, and University of Manchester buys 20 NI Elvis units from National Instruments.
 

Latest stories...
Agilent offers jitter tolerance test solution (October 2009)

Agilent Technologies has released a four-tap de-emphasis signal converter N4916B, an ultra-flexible SSC injection and a SATA ISI channel to its J-Bert N4903B high-performance serial Bert.

Herma uses label detection sensors from Leuze (October 2009)

Herma, a manufacturer of self-adhesive labels and label machinery, has been using sensors from Leuze Electronic to detect, identify and protect personnel in its new warehouse and logistics centre.

NI digital video analyser tests multimedia devices (October 2009)

National Instruments has introduced NI Videomaster 3.0, a PXI-Express-based digital video analyser for validation and production testing of multimedia devices.

Hima-Sella supplies safety instrumented systems (October 2009)

Hima-Sella is to design and supply safety instrumented systems (SIS) and human machine interface (HMI) status indication matrices for DSM Nutritional Products' Vitamin C and Calpan production site.

MVD transmitter technology enhances Emerson meters (October 2009)

Emerson Process Management has announced the availability of the Model 2400S transmitter with next-generation MVD technology on its hygienic Micro Motion H-Series Coriolis meters.

Southco offers latches for off-highway sector (October 2009)

Southco is offering a range of products for the off-highway sector, providing OEMs and end-users with single-sourcing solutions, including off-the-shelf solutions or customer-tailored options.

E-T-A announces rail-mounted circuit breaker (October 2009)

E-T-A Circuit Breakers has introduced a rail-mounted electronic circuit breaker, the E-T-A ESS22-T.

RM2 rotor monitor eliminates nuisance tripping (October 2009)

Rota Val has developed the Rotasafe RM2 rotor monitor to eliminate the problem of nuisance tripping.

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