classic | mobile
 

Search...

SA Instrumentation & Control Buyers' Guide

Technews Industry Guide - IIoT 2017

Technews Industry Guide - Maintenance, Reliability & Asset Optimisation

 

Increased safety in mine charging stations
November 2017, Electrical Power & Protection


Increasingly, mines are using battery-powered electric vehicles underground as they help eliminate the problem of air pollution from diesel exhaust emissions. However, there is also an inherent risk in having large multi-battery charging bays underground. The charging process generates hydrogen, which escapes from the banks of batteries on charge to form a potentially explosive mix. This could result in a potentially catastrophic hydrogen gas explosion – constituting a very real health and safety risk in the process.

In addition, in a ‘fiery’ mine such as a colliery for example, hydrogen combustion may potentially trigger a more serious secondary coal dust explosion.

RTS Africa Engineering, based in Tshwane, specialises in innovative technologies that provide solutions to industrial challenges. Among other things, the company has been involved in supplying hydrogen production and analysis equipment for many years.

“Importantly, we also offer hydrogen detection instruments, the Hy-Alerta 500 and the Hy-Alerta 600B/610B from our international California-based principal, H2Scan, for use in many industrial applications, including the mining sector,” explains managing director Ian Fraser. “For example, these products serve as a valuable safety aid in hydrogen gas detection within battery charging stations in underground mines.”

Hydrogen detection and monitoring

The Hy-Alerta 500 instrument is a versatile handheld detection device, able to detect a wide range of hydrogen gas concentrations without the need for any peripheral equipment. The hydrogen sensor probe has a unique visual LED array that will effectively help navigate to the source of a hydrogen leak where hydrogen gas is produced, used, transported or stored.

“With two sensing elements on the same semiconductor die, the Hy-Alerta 500 can detect hydrogen leaks as low as 15 ppm and will not saturate or be destroyed when detecting high concentrations of hydrogen up to 100%,” says Fraser.

The Hy-Alerta 600B/610B fixed area hydrogen monitors are better suited for area monitoring; and will provide hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm. They can, furthermore, be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit.

“This instrument can be connected to a flashing light or an alarm siren and, if need be, can communicate with a mine’s existing control system,” elaborates Fraser.

Both models have been designed for either ceiling or wall mount; and have RS-422 capability that extends the interface from the sensor to the controller to over a hundred metres.

“In addition, H2Scan’s hydrogen-specific sensor technology has no cross-sensitivity to other combustible gases, thus eliminating false alarms and increasing system reliability,” adds Fraser.

He points out that the company’s hydrogen analysers and leak detectors are based on patented, solid-state core hydrogen sensor technology exclusively licensed from the US Department of Energy, and are supported by 15 years of research and development, and field verification work. In terms of occupational health and safety certification, H2Scan’s instruments conform to the highest international standards.

For the past ten years, RTS Africa has been the agent – locally and pan-Africa – for H2Scan. Many Hy-Alerta instruments are currently being used to detect hydrogen leaks around power station generators.

“Ultimately, with the improved measurement capability provided by these solutions, industries such as mining and the petrochemical industry will be able to operate with the added peace of mind that the risk of hydrogen combustion has been eliminated,” concludes Fraser.

For more information contact RTS Africa Engineering, +27 (0)12 433 6335, www.rtsafrica.co.za


Share via email     Share via LinkedIn   Print this page

Further reading:

  • LED lighting for manufacturing
    May 2018, RET Automation Controls, Electrical Power & Protection
    Save costs while improving productivity.
  • New soft starter with internal bypass
    May 2018, Rockwell Automation, Electrical Power & Protection
    The new Allen-Bradley SMC-50 smart motor controller with internal bypass from Rockwell Automation brings greater operational control over motor starts and stops. As an extension of the soft starter family, ...
  • Stakeless earth ground loop testing
    May 2018, Comtest, Electrical Power & Protection
    Testing the grounding components of equipment in hard to reach spaces, including areas that are indoors or fully paved and do not permit driving auxiliary test stakes, is challenging. Comtest now offers ...
  • Conductive level switches
    April 2018, Instrotech, Electrical Power & Protection
    The latest in Kobold’s NEK range of conductive level switches is a complete, functional unit that reliably monitors the limit level of conductive media, even under heavy process conditions. Whether used ...
  • New gensets for southern Africa
    April 2018, Electrical Power & Protection
    Energas Technologies has entered into a distribution agreement with R Schmitt Enertec, a German manufacturer of gas engines, generator sets and cogeneration sets, to offer highly efficient power generators ...
  • Power analyser and transient recorder in one device
    April 2018, Electrical Power & Protection
    Magnet’s new A.Eberle high-performance PQ Box 150 is a network power analyser, meter and transient recorder in one device. “This compact new instrument has advanced features for reliability and easy operation,” ...
  • RS Components LOGO!Power supplies
    April 2018, RS Components SA, Electrical Power & Protection
    RS Components has announced availability of the fourth generation of LOGO!Power power supplies from Siemens. These new ultra-narrow units have the same design as the Siemens LOGO!8 logic controllers and ...
  • Three-phase power loggers
    April 2018, Comtest, Electrical Power & Protection
    Fluke has on offer two three-phase power loggers, the 1736 and 1738, giving users the data needed to make critical power quality and energy decisions in real time. They are specifically engineered to ...
  • InterCal extends solar panel testing capability
    Technews Industry Guide: Maintenance, Reliability & Asset Optimisation 2018, Intercal, Electrical Power & Protection
    InterCal director Paul Haarhoff and sales manager Mike Devenish recently received training from Netherlands-based Chroma ATE on several of the Chroma systems.    Chroma ATE is a leading supplier of precision ...
  • Simulator demonstrates complete power systems
    March 2018, Electrical Power & Protection
    Cummins Power Generation has officially launched a new simulator, at the Cummins Training Centre in Johannesburg, to demonstrate its entire product line as an integrated solutions approach, from genset ...
  • Efficient three-phase solid state relays
    March 2018, Electrical Power & Protection
    Autonics has released the new SR(H)2/3 series three-phase solid state relays for application in high power systems. The relays are offered in 2 and 3-pole types for controlling two-phase and three-phase ...
  • Split-core AC current transducers
    March 2018, Denver Technical Products, Electrical Power & Protection
    Swiss manufacturer LEM now provides compact split-core, low-cost AC current transducers to provide a RMS 4-20 mA output from an external 20-30 V power supply (loop powered). Separate units are available ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    classic | mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.