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BM 25 & BM 25 Wireless Transportable Gas Detection

Brand: Oldham

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.
Features
  • Detect up to 5 gases simultaneously
  • 103 dB at 3 feet audible alarm
  • Ultra-bright flashing signal at 360°
  • Run time of 170 hours
  • Resistant to harsh environment
  • Easily transportable
  • 30 devices per network
  • 16 independent networks
  • More than 0.5 mile RF line of sight
  • Data acquisition to a controller

Specifications

Brand

Alarm

  • Audible Alarm (103 dB at 1 Meter)
  • Visual Alarm (Ultrabright LED Beacon Visible 360°)

Approvals & Certifications

  • ATEX [II 1 G/I M1, Ex ia IIC T4 Ga/Ex ia I Ma - BM 25 (Standard Version) without IR Sensor] [II 2 G/I M2, Ex ia D IIC T4 Gb/Ex ia D I Mb - BM 25 (Standard & Wireless Version) with IR Sensor] [II 1 G/I M1, Ex ia IIB T4 Ga/Ex ia I Ma or II 2 G/
  • CSA [Ex d Ia IIC T4 Class I, Div. 1, Grade A, B, C, D (For Canada Only), Class I, Div. 2, Grade A, B, C, D (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]
  • EAC [ТР ТС 012/2011 - BM 25/BM 25 W] [0Ex ia IIC T4 Ga Х, РО Ех Ia I Мa Х - BM 25 with Electrochemical Cells] [1Ех Ia D IIC T4 Gb Х, РВ Ех Ia D I Мb Х - BM 25 with Infrared Cells, BM 25 W with Infrared or Catalytic Cells] [0Ex ia IIВ T4 Ga Х, РО Ех Ia I
  • IEC Ex [II 1 G/I M1, Ex ia IIC T4 Ga/Ex ia I Ma - BM 25 (Standard Version) without IR Sensor] [II 2 G/I M2, Ex ia D IIC T4 Gb/Ex ia D I Mb - BM 25 (Standard & Wireless Version) with IR Sensor] [II 1 G/I M1, Ex ia IIB T4 Ga/Ex ia I Ma or II 2
  • INMETRO [Ex ia I Ma, Ex ia IIC T4 Ga, IP66, -20° C ≤ Ta ≤ 55° C - BM 25 (Standard Version) without Sensor IR] [Ex d Ia I Mb, Ex d Ia IIC T4 Gb, IP66, -20° C ≤ Ta ≤ 55° C - BM 25 (Standard & Wireless Versions) with Sensor IR] [Ex ia I Mb, Ex ia IIC T4 Gb

Channels

  • 4

Communication

  • Datalogging Capacity (200,000 Measurements)
  • Wireless Network (2.4 GHz - 100 mW - IEEE 802.15.4, 30 Devices Per Network, 16 Independent Networks, Communication Distance: 0.6 Mile Line of Sight)

Display

  • Graphic Liquid Crystal Display with Backlight

Environmental Protection

  • IP66
  • NEMA 4X

Humidity

  • Operating: 1 to 99 % Relative Humidity

Indication

  • MX 40 (Display): Alarm Status

Input

  • 4-20 mA

Measuring Range

  • Carbon Dioxide: 0-5 % of Volume in 0.1 % Increments
  • Carbon Monoxide, Ammonia: 0 to 1,000 ppm in 1 ppm Increments
  • Chlorine Dioxide: 0 to 3 ppm 0.01 ppm Increments
  • Chlorine, Hydrogen Cyanide, Fluorhydric Acid: 0 to 10 ppm in 0.1 ppm Increments
  • Combustible Gases, Methane, Propane, Butane, Isobutane, LPG, Ethanol, Pentane: 0 to 100 % Lower Explosive Limit (LEL) in 1 % Increments (Infrared)
  • Hydrogen Sulfide: 0 to 100 ppm in 1 ppm Increments
  • Hydrogen: 0 to 2,000 ppm in 1 ppm Increments
  • Isobutylene: 0 to 1,500 ppm in 1 ppm Increments
  • Methane: 0 to 100 % of Volume in 1 % Increments (Infrared)
  • Nitric Oxide: 0 to 300 ppm in 1 ppm Increments
  • Oxygen: 0 to 30 % Volume in 0.1 % Increments
  • Phosphine, Arsine, Ozone, Phosgene, Hydrazine: 0 to 1 ppm in 0.01 ppm Increments
  • Silane: 0 to 50 ppm in 0.1 ppm Increments
  • Sulfur Dioxide, Nitrogen Dioxide, Hydrogen Chloride, Ethylene Oxide: 0 to 30 ppm in 0.1 ppm Increments

Operating Temperature

  • -20° to 50° C (-4° to 122° F)

Output

  • 4-20 mA

Sensor, Probe Type

  • Sensor (Combustible Gas): Catalytic Diffusion
  • Sensor (Isobutylene): Photo Ionization Detector (PID)
  • Sensor (Methane, Propane, Butane, Isobutane, LPG, Ethanol, Pentane, CO₂): Infrared
  • Sensor (Oxygen & Toxic Gases): Electrochemical
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