Author Archives: Gary Friend

Intrinsic Safety: How does a Zener barrier work? Updated Jan 2021

For an explosion, all three of gas/dust, oxygen and source of ignition (spark or heat)Read more

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Making Safe Waves (Wireless) in Hazardous Areas

As wireless devices such as mobile phones and laptop computers become more reliable and costRead more

Cordex introduces the Toughpix Digitherm pocket-size digital and thermal imaging camera

Compact enough to fit into any work pocket, but rugged enough to take the hits,Read more

Remote operating terminals for Ex zones

Introducing a new and unique modular design concept, the MTL Gecma Work Station is aRead more

Intrinsic Safety – Part 3 – impact of Gas Group on loop approval and cable lengths.

Further to my previous articles: How to calculate an intrinsically safe loop approval (http://www.instrumentation.co.za/7571a) andRead more

Intrinsic Safety for zone 2 (Exic) and using longer cable runs.

Further to my previous article on calculating an Intrinsically Safe loop approval (http://www.instrumentation.co.za/7571a ), weRead more

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Timers and clocks for hazardous areas

Beka’s new third generation timer/clock’s applications as a timer include simply displaying the time intervalRead more

CorDEX TOUGHPIX II TRIDENT EDITION Explosion Proof Digital Camera

You need a digital camera that’s tough, because that’s the world you work in. YouRead more

CorDEX TC-Series Intrinsically Safe Thermal Imaging Cameras

You need troubleshooting tools that are rugged, reliable, efficient and accurate. Tools that can helpRead more

CorDEX appoints Extech as authorised distributor in Sub Saharan Africa

CorDEX has added Extech Safety Systems as an authorised distributor in Sub Saharan Africa. TheRead more