Contents of Engineering & Mining Journal - FEB 2012

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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SAFETY
even after falling into water, Dräger adds. It can be used with either standard alka- line or rechargeable NiMH batteries, and has an energy-saving function that allows the normal operation time of 12 hours-plus to be extended to more than 40 hours.
The X-am 5000 is equipped as stan- dard with a data logger for more than 1,000 hours of data storage. The data can be transmitted via infrared interface to a PC and analyzed using Dräger's GasVision software, which can also be used to customize reporting.
Another gas-monitoring system suppli-
Dräger's X-arm 5000 is small and light enough to be worn all of the time, and is capable of measuring concentrations of up to five toxic gases.
potential diesel emission contaminants.
The sensor is able to measure NO2 at very low concentrations, starting at 0.04 ppm, while its very low cross-sensitivity to H2S, SO2, NO and CO, which are
often found in mines and diesel emis- sions, permits the selective measure-
ment of NO2. Water- and dust-resistant, the X-am 5000 detector remains fully functional
er, U.S.-based MSA, introduced its Altair 4X personal multi-gas detector in mid- 2010. The company claims a number of advantages for the instrument, including a four-year sensor life, faster response time, increased stability, and less than 60-sec- onds calibration time. The Altair 4X uses MSA's XCell sensors for combustible gas,
O2, H2S and CO, and has optional Motion- Alert and InstantAlert features. According to MSA, the instrument's other major benefits include its ability to withstand a 6-m (20-ft) drop, its dust and water resistance, the option of a
46 E&MJ; • FEBRUARY 2012
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