With more than a century experience, Tyco Gas & Flame Detection has been innovating and building expertise in gas detection in order to improve safety in the workplace.
GAS DANGERS
Wastewater and potable water treatment facilities produce and use various toxic and explosive gases such as methane, hydrogen sulfide, ammonia, carbon dioxide, carbon monoxide, chlorine, ozone, etc. In addition, in confined spaces, the increased formation of toxic gases and the decreased concentration of oxygen make these areas particularly dangerous for workers.
The risk can be evaluated by measuring worker exposure to various pollutants present in the air in work areas. The measured concentrations are then compared to the 8-hour time weighted averages for exposure (TWA) and to recommended exposure limits for shorter time periods (less than 15 minutes).
GAS DETECTION TECHNOLOGIES
Several technologies can be employed to detect gases present in water treatment facilities.
While electrochemical sensors are used to monitor oxygen rates in the air, or the presence of toxic gases such as CO, H2S, and Cl2; semi-conductor sensors are used where there are high concentrations of H2S or where the ambient temperature is high.
Catalytic sensors are used for the detection of explosive gases and infrared sensors are used for the detection of explosive gases such as CH4 or carbon dioxide (CO2) .
Infrared technology sensors are recommended for corrosive atmospheres or where high levels of H2S are present. Continued high concentration of H2S (above 3 ppm) will create a risk of saturation and poisoning for standard catalytic cells.
Our infrared sensor cells are not sensitive to these “”poisons”” (H2S, chlorinated solvents…) and last longer: maintenance is reduced to one annual test, energy consumption is 2 times less than for catalytic detectors, and they are guaranteed for 5 years.
OUR WIDE RANGE OF PRODUCTS & SOLUTIONS
The industrial product line was designed to be used in the most extreme environments and is well-adapted for use in the water sector: use in areas with and without explosion hazard classifications, high protection index, stainless steel or polyester casing.
Our units have many functional features including RS485 outputs, TCP/IP interfaces, programmable relays, backlit LCD displays and 24/7 data recording.
In saline, moist, or corrosive environments or where there is a high concentration of H2S, we recommend INOX detectors for maximum longevity.
Tyco Gas & Flame Detection also offers wireless solutions: the BM 25 is celebrating 10 years of improved safety on many offshore assets and land-based applications. This device packs the benefits of a fixed system area monitor into a rugged, user-friendly and transportable instrument. It was designed to detect one to five gases for mobile or temporary work applications, team protection, area surveillance, or places where fixed detection systems are not suitable.
The radio communication allows several BM25 devices to communicate on the same network or to send information wirelessly to an MX 40 controller. The MX40 controller is a low power alarm and control system designed to monitor multiple gas detection devices (up to 32) and/or a wide range of other field devices. The MX 40 also allows for expanded use of addressable I/O modules. The modules can be mounted within the main system enclosure or installed remotely to simplify field wiring.
The MX40 is completely field programmable and offers advanced technology with intuitive, embedded intelligence. The control system displays real time readings and field device status on a backlit LCD screen. During normal operation the screen displays the alarm status and current reading for up to 8 field devices simultaneously.
If a BM 25 does not respond or if the network is split, then it is possible to continue to work by the time of the restoration of the network. All safety functions remain effective. When the obstacle is gone, the communication resumes automatically.
For use in confined spaces, we recommend use of a sampling enclosure.
Certain environmental conditions require that other specific criteria be considered. For studies or proposals, please see us for consultation and support in defining your particular needs.
Biological treatment facilities are usually situated far from production facilities, and staff who work at and maintain these facilities often work alone. For complete safety, operators are equipped with portable gas detectors, maintained and tested regularly.
Regardless of the application, we have a portable monitor or fixed gas detection system that will comply with all your industrial safety and confined space requirements.
Our experts provide an end-to end solution that is backed by more than 100 years of gas detection experience. We consult with you to identify your specific needs, design an appropriate fixed gas detection system to meet those needs and ensure its proper installation and ongoing operation.
Health and safety are our priorities.
Contact us for unequaled expertise in protection against gas-related risks: oldhamgas-info-fr@tyco.com
