BM 25 wireless transportable multi-gas detectors
The BM 25 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 battery powered BM 25 offers up to 170 hours of continuous run time. Other standard features include STEL and TWA values, as well as a data-logging capacity of more than four months. Multiple units can be grouped using optional alarm transfer kits. This protects larger areas by transferring alarms from one BM 25 to the next. An intrinsically safe trickle charger is available to maintain battery life for long-term area monitoring in classified zones.
The BM 25 is durable and versatile. It is suitable for a wide range of industries including petrochemical, refineries and pharmaceutical production. Applications include plant maintenance shutdown sites, rig overhauls and perimeter-line surveillance.
The MX 40 controller was designed to centralise the wirelessly transmitted information from the BM 25 and can display up to 32 measurements in real time. When a BM 25 signals an alarm, the MX 40 also goes into alarm mode and can, for example, control internal relays and instruct other monitors to transmit the alarm as well.
Any five of the following gasses can be detected simultaneously: AsH3, CO, CO2, flammable gas (H2, CH4, Pentane etc.) HCI, HCN, NH3, NO2, O2, PH3, SiH4, SO2.
OLCT 80 wireless fixed gas detector
Oldham’s competitive advantage is its latest innovative model of the OLCT80-Wireless. The device’s powerful signal and mesh network topology were quick to gain support by offering a convenient, efficient and economical gas detection solution.
The new OLCT 80 field detector/transmitter model allows wireless connectivity in ATEX 1 zones. Features and benefits include:
• An infrared remote controller and on-board display for non-intrusive, one-man calibration.
• Flameproof or intrinsic safety sensors.
• A design suitable for explosive areas.
• Low power requirements.
• Universally accepted frequency of 2,4 GHz, up to 3200 m line of site communication.
• Flexible I/O options, including dual analog, on/off and Modbus RS-485.
Designed to meet the demanding needs of the largest industrial companies, the OLCT 80 is an achievement in terms of technical performance and cost optimisation. Flameproof or intrinsic safety approved sensors are available depending on gases to be detected. Depending on the sensor selection, the OLCT 80 can detect O2, combustible, toxic and refrigerant gases, is non-intrusive and offers easy calibration. A new XP IR infrared sensor is available for the detection of combustible gases or CO2.
Application example
A major UK company recently installed NH3 gas detectors at some of its sites due to the large quantities of ammonia present in this environment.
The goal of this project was to allow the customer to ensure employee safety and limit the environmental impact of any potential gas leaks. The large size of the facility meant that gas detectors had to be relatively far removed from the control centre. As a result, a dozen wireless detectors were installed in remote areas, where it is nearly impossible to run electrical lines. A controller was also installed in the customer’s control room and was in constant wireless communication with all the OLCT 80-Wireless devices in the field, displaying the alarm status of each.
Oldham gas detection products meet all major international certification standards and are used in numerous industries. Applications include oil and gas, offshore exploration and production, petrochemical, food and beverage, water treatment, automotive, steel production, liquid natural gas, liquefied petroleum gas, pharmaceutical and power stations.
For more information contact Marihette Hattingh, Sperosens, 0861 773 767, [email protected], www.spero.co.za
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