Up to 5 gases simultaneously
103 dB at 3 feet audible alarm
Ultra-bright flashing signal at 360deg
Run time of 170 hours
Resistant to harsh environment
Easily transportable - less than 15 lbs
30 devices per network
16 independent networks
More than 0.5 mile RF line of site
The GMI BM 25 Transportable Multi-Gas Area Monitor combines the advantages of a fixed gas detection area monitor with the transportable qualities of a portable instrument. The GMI BM 25 can detect between one and five gases, and is used for applications such as team protection, area surveillance, mobile or temporarily work applications and also locations where a permanent, fixed system is not suitable.
Up to 170 hours of continuous running time are possible with the GMI BM 25, as it is powered by a NiMH battery pack.
The GMI BM 25 monitor also has datalogging capacity of more than four months, as well as STEL and TWA values.
The protection of larger areas can be achieved using multiple units, which can be grouped using optional alarm transfer kits. Alarms are transferred from one BM 25 to the next. For long-term area monitoring in classified zones, an intrinsically safe trickle charger is also available.
Available as an option, the radio communication allows
several BM 25 devices to communicate on the same
network or to send information wirelessly to a controller.
The network topology used by the BM 25 is a MESH
network. In a mesh network all hosts are connected peerto-
peer without central hierarchy, thereby forming a net-like
structure. Consequently, each node can receive, send and
relay data. This prevents having sensitive points, which in
case of failure, cut the connection of the network. If a node
is down, its goes through another route.
Wireless communication is made via a 2.4 GHz radio and
emitted power is less than 100 mW. Maximum distance
between two communicating devices is 0.6 mile line of sight.
Mesh topology allows fast and simple deployment, high
coverage versatility and high fault tolerance. It significantly
reduces installation and operating costs of networks. These
solutions reproduce the architecture of the Internet while
optimizing for wireless.
The GMI BM 25 Transportable Multi-Gas Area Monitor is suitable for a wide range of industries including refineries and pharmaceutical production. Applications suitable for the GMI BM 25 include turnaround work sites, rig overhauls and fence-line surveillance.
“Plug-and-Play” Sensors Available:
O2, CO, H2S, %LEL, SO2,
NO, NO2, HCN, HCl, Cl2,
ETO, PH3, AsH3, SiH4, CO2,
H2, NH3, PID, XP IR, etc.