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BM25

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Overview

As its name implies, an area gas monitor is a gas detection device designed to ensure workers safety on a defined sector. Widely used in reffineries and offshore platforms, it can also be found in public work construction sites.

Powered by a NiMH battery pack, the BM25 multi gas monitor offers up to 170 hours of continuous run time. Other standard features include STEL and TWA values, as well as a data logging capacity of more than four months. Multiple units can be grouped using optional alarm transfer kits. This protects larger areas by transferring alarms from one BM25 to the next.

The BM25 multi gas area monitor which can simultaneously detect up to 5 gases among a large range of different sensors. This is the most popular and the most commonly used area gas monitor in the world.

Specification

Weight: approx. 6.8 kg / Dimensions: L 180 x H 467 x W 195

Display: 2 instant thresholds per channel + TWA and STEL for toxic gases

Gas alarms: 2 instant thresholds per channel + TWA and STEL for toxic gases

Visual alarm: 20 ultra-bright LEDs visible from any direction and protected by sturdy metal elements

Audible alarm: two-way 103 dB at 1 meter alarm
Ingress protection: IP66 certified

ATEX certification: II 1GD EEx ia IIC T4 / II 2 GD EEx ia d IIC T4 (with CO2 sensor)

Power source: NiMH battery pack / 110 VAC, 220VAC charger

Detected gases: AsH3, B2H6, Cl2, CO, CO2, COCl2, H2S, HCl, HCN, HF, N2H4, NO, NO2, NH3, O2, O3, PH3, SiH4, SO2, COV and EXPLO

Measuring Range
  • Ammonia: 0 – 100 ppm 1 ppm
  • Ammonia: 0 – 1000 ppm 1 ppm
  • Arsine: 0 – 1 ppm 0.01 ppm
  • Chlorine: 0 – 10 ppm 0.1 ppm
  • Hydrogen chloride: 0 – 30 ppm 0.1 ppm
  • Volatile organic compounds: C4H8 0 – 1500 ppm 1 ppm
  • Hydrogen cyanide: 0 – 30 ppm 0.1 ppm
  • Nitrogen dioxide: 0 – 30 pm 0.1 ppm
  • Carbon dioxide : 0 – 5%/vol. 0.1%
  • Chlorine dioxide: 0 – 3 ppm 0.1 ppm
  • Sulfur dioxide: 0 – 30 ppm 0.1 ppm
  • Fluorine: 0 – 1 ppm 0.1 ppm
  • Hydrogen fluoride: 0 – 10 ppm 0.1 ppm
  • Hydrazine: 0 – 1 ppm 0.01 ppm
  • Hydrogen: 0 – 2000 ppm 1 ppm
  • Hydrogen sulphide: 0 – 100 ppm 1 ppm
  • Combustible gases (catalytic sensor): 0 – 100% LIE 1%
  • Methane: 0 – 5%/vol. 0.01%
  • Nitric oxide: 0 – 300 ppm 1 ppm
  • Carbon monoxide: 0 – 1000 ppm 1 ppm
  • Carbon monoxide / Hydrogen sulphide (2 gas combined sensor):
    -0 – 1000 ppm 1 ppm
    -0 – 100 ppm 0.1 ppm
  • Ethylene oxide (ETO): 0 – 30 ppm 0.1 ppm
  • Oxygen: 2 – 30 %/vol. 0.1 %/vol.
  • Ozone: 0 – 1 ppm 0.01
  • Phosgene: 0 – 1 ppm 0.01
  • Phosphine: 0 – 10 ppm 0.01 ppm
  • Silane: 0 – 50 ppm 1 ppm
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