Operator Interfaces, Switches & Relays


Latest Articles

Banner EZ-LIGHT tower lights
December 2009, Turck Banner Southern Africa
Displaying up to five colours in one tower and allowing multiple colours to be lit simultaneously, these preassembled and preconfigured multisegment indicators replace conventional stack lights, which ...

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Dry run protection
November 2009, NewElec Pretoria
To ensure that a pump is taken out of service when the liquid medium dries up, NewElec recommends fitting the UCR 80 relay into the starter circuit. The UCR 80 allows the user to select the load level ...

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Non-contact temperature switch
October 2009, R&C Instrumentation
Raytek has introduced the Raytek CM, a compact, integrated IR no contact thermometer that has a simple relay output that switches the 24 VDC supply at the programmed temperature. This rugged, IP65 sealed, ...

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D-HG 400 high energy ignitor
October 2009
The DURAG D-HG 400 high energy spark ignitor ignites oil and gas burners of any capacity. In its standard version, the ignition lance and the control unit form a compact module. Depending on the ignition ...

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Cost-effective indication
September 2009, Turck Banner Southern Africa
Banner has introduced the EZ-Light product range, which has a consumption of less than 2 W, compared to competitive incandescent light units that can consume up to 15 W or more

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MA relay gains Profibus approval
September 2009, PI SA (PROFIBUS & PROFINET SA), NewElec Pretoria
NewElec’s locally designed and manufactured MA motor protection relays with Profibus communications have been certified and tested successfully at Procentec in the Netherlands. Equipped with four output ...

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Power over Ethernet switches
September 2009
Advantech has introduced two new PoE switches, the EKI-2525PA and EKI-2526PI, expanding its Industrial Ethernet solutions. EKI-2525PA is a 5-port industrial PoE switch with 24/48 VDC power input designed ...

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Alarm management
September 2009, Omniflex Remote Monitoring Specialists
Web exclusive – read the full paper online.    Alarm definition An alarm is classified as an event to which an operator must react, respond and acknowledge (not simply acknowledge and ignore) and no plant ...

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Process indicators
September 2009, Endress+Hauser South Africa
Endress+Hauser launches new generation of displays with control unit. Endress+Hauser’s RIA45 and RIA46 boast display areas with large easily readable digits that can be viewed clearly from a distance. ...

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Electronic pressure switch
September 2009
ASStech’s new electronic pressure switch JUMO DELOS is a multitasker with switching contacts, analog output and a brilliant LC display for visualisation of the current process pressure and the condition ...

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Microwave blocked chute switch
September 2009, Allpronix
New versions of the microwave block chute detector are now available. The new versions include a long range (100 metre), as well as a smart version (signal gain/strength and configurable set-point) The ...

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Solid-state relays
July 2009
Wattcor ultra-reliable solid-state switches for power up to 600 A. The compact Gefran Wattcor W211/212 line (high power SSRs) offers reliable switching of large resistive loads and has low heat dissipation. ...

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Compact strain transducer
July 2009
HBM has introduced the 6 mm high SLB-700A strain transducer to measure strains on solid components, such as cranes and bridges, where high loads need to be measured. The compact size of the strain transducer ...

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Temperature switch with extended sensor
July 2009, ifm - South Africa
ifm electronic’s TK temperature switch is available in five versions, with a temperature set range from -25 to +140°C. Each version has either two separate switch points with fixed hysteresis or adjustable ...

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Relay for multiple safety functions
June 2009, Phoenix Contact
The PSR Trisafe relay is the new configurable safety module from Phoenix Contact. Entire safety circuits in machines and plants – from emergency stops to safety door monitoring – can be monitored using ...

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Compact switch with diagnostics
June 2009, Phoenix Contact
The new compact Lean managed switches from Phoenix Contact’s Factory Line ranges are compatible with fibre-optic networks and offer special management features. They allow users to connect copper-based ...

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RDU 216 for MA relays
June 2009, NewElec Pretoria, PI SA (PROFIBUS & PROFINET SA)
NewElec’s MA RDU 216 panel-mounted keypad entry display unit can be used as a programming and display unit for the NewElec MA range of motor protection relays. The MA RDU 216 permits the user to set ...

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IS relays for hazardous areas
June 2009, Extech Safety Systems
RTK Instruments is offering its DA149 intrinsically safe relays. These relays allow control signals and other data to be exchanged between items of equipment in hazardous areas and between hazardous area ...

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Prevent motor burnout
June 2009, NewElec Pretoria
Simply pressing the start button on a machine that has been standing for a long period of time can be risky and should be avoided until the insulation of the motor has been checked for integrity. Degradation ...

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Harmony biometric switch
June 2009, Schneider Electric South Africa
Schneider Electric, world leader in control and signalling components, and Sagem Sécurité (SAFRAN group), world leader in biometric identification solutions, have combined their expertise to create a ...

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