Description

The BM25A/AW is a durable, versatile, multi-gas area monitor with interchangeable ‘smart’ sensors covering a wide range of different gases. All this makes the BM25A/AW easily adaptable to a wide variety of applications and industries, including oil refineries, pharmaceutical production, drilling rigs or any sites needing a reliable gas detection system. When the BM25A/AW detects a hazardous level of oxygen, toxic or combustible gas, the top-mounted beacon sends a flashing, bright signal in all directions while emitting a powerful, 103dB siren alarm. The standard BM25A can send alarms via the alarm transfer cables, whilst the BM25AW Wireless can send alarm, fault and readings via the 2.4GHz wireless signal. This setup can create a safety perimeter around a detected atmospheric hazard, or transmit a manually initiated emergency signal over a wide area.

Available Sensors include: CH₄, and other flammable hydrocarbons, AsH_3, Cl₂, CO, CO₂, ETO, H₂, H₂S, HCl, HCN, LEL, NO₂, NO, NH₃, O₂, PH₃, SiH_4, SO₂

Each BM25A/AW comes with a high capacity nickel metal-hydride battery pack offering up to 170 hours of continuous runtime (135 hours with BM25 Wireless). Long-term area monitoring is possible in hazardous locations with an intrinsically safe trickle charge power supply. Also standard are STEL and TWA readings and nearly four months of data logging capacity for a five-gas configuration.

Features

• 1 to 5 gases can be simultaneously monitored
• 103 dB at 3 feet audible alarm
• STEL and TWA values available
• 200,000 readings datalogging capacity (up to 4 months logging for 5 gases configuration)
• Ultra-bright LED flashing beacon at 360°
• Manual panic alarm
• Run time of 170 hours (135 hours for BM25 Wireless units)
• 4.5 Hours recharge, typical
• Safe trickle charger available for long-term installations
• IP66 impact resistant poly carbonate housing, resistant to harsh environments
• Easily transportable – only 6.8Kg
• Up to 30 BM25 Wireless units can be meshed on a single network
• Up to 16 independent wireless networks with no interference
• 2.4GHz radio @ 100mW
• up to 0.6 mile RF line of sight between each unit.

The BM25AW is wireless gas detector and can be used as a stand-alone monitor or linked into a mesh network to provide gas detection over a large area. The mesh network will allow each BM25AW to connect peer-to-peer with all other units in the network to all each unit to send, receive and relay data to any other unit in range. This allows units to communicate around obstructions and to alter communications paths should a unit be removed for recharging, or servicing. Where networks are split, they will automatically form two separate networks until the network is restored and resume the single network automatically.

Adding additional BM25AW units to an existing network is as easy as turning the units on within reach of the network. The new units will automatically be added to the existing network. A total of 30 BM25AW units may be meshed together in a single network and up to 16 independent networks can coexist without interference.

BM25AW unit’s in a single network will show alarms detected from any BM25AW unit and immediately relay this to the entire network. Any units disconnected from the alarming network will still function as before and remain effective to provide local alarms in the presence of gas in the units own area, or split network.

Please note: The 6313888 cells is no longer available and cannot be replaced. Contact us for more details and to discuss the options for you.

Use the part builder to configure the BM25A with the gas sensors to meet your requirement. NB. Adding a sensor to location 5 will deactivate the sensor in location 2. Should you place an order the system will be supplied as configured.