Teledyne Oldham BM25 (LEL/O2/H2S/CO) Pumped Transportable Gas Detector

Teledyne Oldham BM25 Wireless (LEL/O2/H2S/O2) Pumped Transportable Gas Detector
The BM25 is a transportable gas detector, designed to simultaneously detect up to five gases.  This particular model is wireless, pumped and has sensors for LEL Methane, Hydrogen Sulphide, Carbon Monoxide and Oxygen.  There are also sensors available for other combustible gases, sulphur dioxide, ozone and many others.  
The BM25 gas detector can be likened to a fixed system area monitor and is ideal for harsh environments and applications where temporary work is being carried out, team protection, area surveillance or where it is not possible for a fixed monitoring system to be permanently installed.  It’s designed to ‘stand up’, so the feet allow it to be placed on any flat surface.  The display will simultaneously show all gases monitored so any gas readings can be seen immediately.
There are added benefits to the wireless version of the BM25 transportable gas detector.  The remote power supply is intrinsically safe, so ensures that there is continuous operation in hazardous environments and its line-of-sight range is around 1,000mtrs.  The BM25 has a built-in output relay which allows the unit to be connected to remote alarm devices in applications such as rig overhauls, fence-line surveillance, refineries, and pharmaceutical productions.  A mesh network can be created to provide wide coverage and a higher tolerance of faults.  When used in conjunction with the MX40 controller up to 32 measurements can be displayed at a centralised location in real time.  The MX40 can communicate with other connected BM25s, should an alarm go off.

Key Features

Interchangeable and field-replaceable sensors
Battery life can last up to 170 hours
Weighs less than 15lbs (6.8lbs)
Optional sampling pump allows the unit to be used for remote sampling applications
Impact-resistant polycarbonate casing
Clear LCD display with a backlight for dark conditions
Datalogging capacity can hold up to 200,000 measurements
Double alarm system – audible (103db @ 1mtr) and 360° ultrabright LED beacon
Recharge Time – typically 4.5 hrs with a runtime of up to 170 hours operating time or 135 hours in wireless mode (on NiMH battery)

What’s Included?

BM 25 Wireless ATEX approved, LEL Methane, CO, H2S, O2, with pump. instruction manual, charger with universal power cord, calibration adapter, and maintenance tool.

Weight & Dimensions

470 x 180 x 190 mm (16.7 x 7.1 x 7.5”)
6.8kg (15lbs)

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: 0-100% LEL in 1% increments

·         Methane: 0-100% LEL in 1% increments – Infrared

·         Methane: 0-100% of volume in 1% increments – Infrared

·         Propane: 0-100% LEL in 1% increments – Infrared

·         Butane: 0-100% LEL in 1% increments – Infrared

·         Isobutane: 0-100% LEL in 1% increments – Infrared

·         LPG: 0-100% LEL in 1% increments – Infrared

·         Ethanol: 0-100% LEL in 1% increments – Infrared

·         Pentane: 0-100% LEL in 1% increments – Infrared

·         Oxygen: 0-30% Volume in 0.1% increments

·         Carbon Monoxide: 0-1,000 ppm in 1 ppm increments

·         Hydrogen Sulfide: 0-100 ppm in 1 ppm increments

·         Hydrogen: 0-2,000 ppm in 1 ppm increments

·         Sulfur Dioxide: 0-30 ppm in 0.1 ppm increments

·         Chlorine: 0-10 ppm in 0.1 ppm increments

·         Nitrogen Dioxide: 0-30 ppm in 0.1 ppm increments

·         Nitric Oxide: 0-300 ppm in 1 ppm increments

·         Hydrogen Chloride: 0-30 ppm in 0.1 ppm increments

·         Hydrogen Cyanide: 0-10 ppm in 0.1 ppm increments

·         Ammonia: 0-1,000 ppm in 1 ppm increments

·         Phosphine: Dioxide 0-1 ppm in 0.01 ppm increments

·         Arsine: 0-1 ppm in 0.01 ppm increments

·         Silane: 0-50 ppm in 0.1 ppm increments

·         Ethylene Oxide: 0-30 ppm in 0.1 ppm increments

·         Carbon Dioxide: 0-5% of volume in 0.1% increments

·         Isobutylene: 0-1,500 ppm in 1 ppm increments

·         Fluorhydric Acid : Chlorine 0-10 ppm 0.1 ppm increments

·         Ozone: 0-1 ppm 0.01 ppm increments

·         Phosgene: 0-1 ppm 0.01 ppm increments

·         Chlorine Dioxide: 0-3 ppm 0.01 ppm increments

·         Hydrazine: 0-1 ppm 0.01 ppm increments

Operating Temperature & Humidity

-20°C to +50°C (-4°F to 122°F) sensor dependent
1% to 99% RH sensor dependent

Certifications

ATEX & IECEx VERSIONS

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

CSA VERSION

BM 25 (standard and wireless versions) Ex d ia IIC T4 Class I, Div 1, Gr ABCD (for Canada Only), Class I, Div 2, Gr ABCD (for US Only)
AEx d ia IIC T4 Class I, Zone 1 (for US Only)

C22.2 No.152 (% LEL only)
ISA-12.13.01-2000
BM25 with pump or PID sensor or infrared sensor for combustible gases is not CSA certified.

NMETRO VERSION

BM 25 (standard version)
Without sensor IR: Ex ia I Ma, Ex ia IIC T4 Ga, IP66, -20 °C ≤ Ta ≤ +55 °C
With sensor IR: Ex d ia I Mb Ex d ia IIC T4 Gb, IP66, -20 °C ≤ Ta ≤ +55 °C

BM 25 W (wireless version)
Without sensor IR: Ex ia I Mb, Ex ia IIC T4 Gb, Ex ia IIB T4 Ga, IP66, -20 °C ≤ Ta ≤ +55 °C
With sensor IR: Ex db ia I Mb, Ex db ia IIC T4 Gb, IP66, -20 °C ≤ Ta ≤ +55 °C

EAC VERSION

BM 25 / BM 25W
TP TC 012/2011
0Ex ia IIC T4 Ga X,
PO Ex ia I Ma X (BM 25 with electrochemical cells)
1Ex ia d IIC T4 Gb X, PB Ex ia d I Mb X (BM25 with infrared cells, BM25W with infrared or catalytic cells )
0Ex ia IIB T4 Ga X, PO Ex ia I Ma X (BM25W with electrochemical cells)