Working safely with H2 Because of the effects of H2


Portable gas detection


The portable gas detectors in this article are supplied by BW Technologies by Honeywell


GasAlertQuattro


• Easy to use and maintain Simple one


button operation. Device works with MicroDock II automatic test and calibration station


• Reliable with excellent performance Full function self-test of sensor(s), battery status, circuit integrity and audible/visual alarms on start up and continuous testing on sensors


• Ideal for confi ned space monitoring Provides continuous, simultaneous monitoring of up to 4 gas hazards; H2 CO, O2


and fl ammables GasAlertMax XT II


• Easy to use and maintain Simple one


button operation. Device works with MicroDock II automatic test and calibration station


• High performance Best in class block detection with semiconductor pressure sensor


• Ideal for confi ned space monitoring Integrated sampling pump with reliable diaphragm technology. Device provides continuous, simultaneous monitoring of up to 4 gas hazards; H2


S, CO, O2 fl ammables and S, XNX Universal Transmitter


• Universal use Works with all


Honeywell Analytics’ range of sensing technologies


• Highly fl exible Provides all industry standard outputs and also features a “future-proof” design that allows new output standards to be adopted


• Reduced operational costs Common interface design means that less spares stock is required. Installation costs are also reduced thanks to common tools and set up. No hot work permit needed. Device also permits the hot swap of toxic and Oxygen sensors


S: S and its toxicity, portable gas detection is essential to


ensure adequate worker safety. Fixed gas detection should also be used to ensure that if a leak is detected, emergency procedures can be initiated.


Fixed gas detection


The fi xed gas detectors in this article are supplied by Honeywell Analytics


SPM • Sensitive detection


Detects down to ppb with physical evidence of a release. Fast speed of response that is specifi c to the target gas only


• Easy to use and maintain Minimal maintenance and no dynamic calibration


• Flexible use


Over 50 gas calibrations available. Ideal for use in harsh industrial applications such as water monitoring applications


Sensepoint XCD


• Ease of integration 3-wire 4-20mA (sink or source) format with relay outputs. Suitable for retrofi tting other older


generations of Honeywell Analytics’ gas detectors and many third party models


• Increased safety


Unique tri-colour LCD display provides status at a glance. A green light indicates normal operation; a yellow light indicates a fault; a fl ashing red light indicates an alarm


• Reduced operational costs Common user interface for all detectors means that there is less chance of incorrectly confi guring or interpreting readings and less training time needed


• Reduced maintenance costs Replaceable plug-in sensors reduce time and cost of maintaining detectors. Device also uses common spare parts


… The most common way of obtaining H2


contained in its mix). … H2


S is by separating it from


“sour” gas (Methane that is extracted with a high concentration of H2


S


S has been cited as a potential catalyst for a number of past mass extinctions on our planet. In particular, it is believed that a build up of H2


S in


the atmosphere may have caused the Permian-Triassic extinction event (252 million years ago).


GasDetector | Winter 2011 | Page 11


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