BM 25 & MX 400 pages

Gas Monitoring Solutions

Specifications
INSTRUMENT WARRANTY:
t Two-year warranty, excluding consumables (sensors, filters, etc.)
CASE MATERIAL:
IP66 - Impact resistant polycarbonate
DIMENSIONS:
470 x 180 x 190 mm (16.7” x 7.1” x 7.5”)

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 peer-to-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 monitor is equipped with a 360° flashing signal and a 103 dB at 3 feet audible alarm. STEL and TWA values are available as
well as a datalogging capacity of more than four months (for 5 gases configuration).
The BM 25 batteries offer up to 170 hours of continuous runtime depending on configuration and take only 4 ½ hours to recharge.
A safe trickle charger is also available for long-term area monitoring in classified zones.

Ultrabright flashing beacon
Powerful audible alarm (103 dB @ 1m)
Run-time up to 170 hours

WEIGHT:
6.8 kg (15 lbs)
DISPLAY
Graphic liquid crystal display with backlight
SENSORS:
Combustible Gas – Catalytic Diffusion
Methane, Propane, Butane, Isobutane, LPG, Ethanol, Pentane – Infrared
Oxygen and Toxic Gases – Electrochemical
CO2 – Infrared
Isobutylene – PID
MEASURING RANGES:
Combustible Gases:t
Methane: t
Methane: t
Propane: t
Butane: t
Isobutane: t
LPG: t
Ethanol: t
Pentane: t
Oxygen: t
Carbon Monoxide: t
Hydrogen Sulfide: t
Hydrogen: t
Sulfur Dioxide: t
Chlorine: t
Nitrogen Dioxide: t
Nitric Oxide: t
Hydrogen Chloride:t
Hydrogen Cyanide:t
Ammonia: t
Phosphine: t
Arsine: t
Silane: t
Ethylene Oxide: t
Carbon Dioxide: t
Isobutylene: t
Fluorhydric Acid :
Ozone :
Phosgene :
Chlorine Dioxide :
Hydrazine :

0-100% LEL in 1% increments
0-100% LEL in 1% increments – Infrared
0-100% of volume in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-100% LEL in 1% increments – Infrared
0-30% Volume in 0.1% increments
0-1,000 ppm in 1 ppm increments
0-100 ppm in 1 ppm increments
0-2,000 ppm in 1 ppm increments
0-30 ppm in 0.1 ppm increments
0-10 ppm in 0.1 ppm increments
0-30 ppm in 0.1 ppm increments
0-300 ppm in 1 ppm increments
0-30 ppm in 0.1 ppm incrementst
0-10 ppm in 0.1 ppm increments
0-1,000 ppm in 1 ppm increments
0-1 ppm in 0.01 ppm increments
0-1 ppm in 0.01 ppm increments
0-50 ppm in 0.1 ppm increments
0-30 ppm in 0.1 ppm increments
0-5% of volume in 0.1% increments
0-2,000 ppm in 1 ppm increments
0-10 ppm 0.1 ppm increments
0-1 ppm 0.01 ppm increments
0-1 ppm 0.01 ppm increments
0-3 ppm 0.01 ppm increments
0-1 ppm 0.01 ppm increments

WIRELESS NETWORK
2.4 GHz frequency
30 devices per network
16 independent networks
Communication distance : 0.6 mile line of sight

Stand Alone

Intrinsically safe
charger

MX 40 :
Up to 32 Devices, Wired or Wireless
NEMA4X Package Available
Configurable up to eight zones
Alarm and Fault Condition LEDs
Display Indicates: Field Device Location, Alarm Status,
Channel, Gas Reading, Battery Life & Signal Strength

DATALOGGING CAPACITY:
200,000 measurements
AUDIBLE ALARM:
103 dB @ 1 meter

Transportable Multi-Gas
Area Monitor

VISUAL ALARM:
Ultrabright LED beacon visible 360 degrees
OPERATING TEMPERATURE RANGE:
-20°C to +50°C (-4°F to 122°F) sensor dependent
OPERATING HUMIDITY RANGE:
1% to 99% RH sensor dependent
POWER SOURCE (RUN TIME):
NiMH (up to 170 hours operating time, 135 hours in wireless mode)
RECHARGE TIME:
4.5 hours, typical

Up to 5 gases simultaneously

103 dB at 3 feet audible alarm

CERTIFICATIONS:

Ultra-bright flashing signal at 360°

ATEX & IECEx VERSIONS (BM 25 and BM 25W)

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 sight

Data acquisition to a controller

BM 25 (standard version)
Without IR sensor:
II 1G / I M1
Ex ia IIC T4 Ga / Ex ia I Ma
With IR sensor:

II 2G / I M2
Ex ia d IIC T4 Gb / Ex ia d I Mb

BM 25 W (wireless version)
Without IR sensor
II 1G / I M1
Ex ia IIB T4 Ga / Ex ia I Ma
or
II 2G / I M2
Ex ia IIC T4 Gb / Ex ia I Mb
With IR sensor
INERIS 05ATEX0044
IECEx INE 06.0002

II 2G / I M2
Ex ia d IIC T4 Gb / Ex ia d I Mb

CSA VERSION (BM 25A and BM 25AW)
BM 25 (standard version)
Class I, Division 1, Groups A,B,C,D ; Ex ia d IIC T4

WIRELESS VERSION

BM 25 (standard version)
Class I, Division 1, Groups C,D ; Ex ia d IIB T4 - PENDING
C22.2 No.152 (% LEL only)
BM 25A with pump or PID sensor or with infrared sensor for combustible
gases detection is not CSA certified

AMERICAS
Tel.: +1-713-559-9280
Fax: +1-281-292-2860
americas@oldhamgas.com

Trickle charge for long term area monitoring

BM 25 &
BM 25 Wireless

EMEA
Tel.: +33-3-21-60-80-80
Fax: +33-3-21-60-80-00
info@oldhamgas.com

ASIA PACIFIC
Tel.: +86-21-3127-6373
Fax: +86-21-3127-6365
sales@oldhamgas.com

www.oldhamgas.com

The Fixed Gas Detection Experts
www.oldhamgas.com

BM25BM25Wireless_ENGA4_16FEB2015