Target Gas Specifications
This Brasch Gas Detector is available for monitoring carbon monoxide and/or nitrogen dioxide
as target gases. Regulatory agencies have determined the threshold concentrations at which
the gases become dangerous. Brasch Environmental Technologies, LLC has designed their
detectors so that the measurement ranges for each target gas meet the agencies’
requirements. Each target gas, for which Brasch currently produces a detector, is listed below
along with the relevant concentration specifications.
Carbon Monoxide
Full Scale Span: 200 PPM
Resolution: 1 PPM
Minimum Accuracy*: ± 10% or 6 PPM
Low Alert Settings:
Switch Position 0 1 2 3 4 5 6 7
PPM CO 20 25 30 35 40 45 50 55
High Alert Settings 100 PPM
Expected Lifespan 10 years
Recommended
Recalibration Time
2 years
Nitrogen Dioxide
Full Scale Span: 10 PPM
Resolution: 0.1 PPM
Minimum Accuracy*: ± 15% or 0.8 PPM
Low Alert Settings:
Switch Position 0 1 2 3 4 5 6 7
PPM NO
2
0.3 0.5 1.0 1.5 2.0 2.5 3.0 4.0
High Alert Settings 5.0 PPM
Expected Lifespan 10 years
Recommended
Recalibration Time
2 years
*Allowable tolerance for accuracy and repeatability criteria as defined in Annex A, Item 2 of ANSI/ISA 92.00.01-2010 (R2015)
IOM01
Rev 1.0 – December 22, 2020 7
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