NBN EN 50241-2 : 1ED 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SPECIFICATIE VOOR APPARATUUR DIE GEBRUIK MAAKT VAN EEN OPTISCHE WEG VOOR DE DETECTIE VAN BRANDBARE OF GIFTIGE GASSEN EN DAMPEN - DEEL 2: GEBRUIKSEISEN VOOR DE DETECTIE VAN BRANDBARE GASSEN
19-08-2010
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Performance requirements
5.1 Requirements for tests
5.2 Unpowered storage
5.3 Calibration curve (not applicable to
alarm-only apparatus)
5.4 Drift (continuous duty apparatus only)
5.5 Alarm
5.6 Temperature variation
5.7 Pressure variation
5.8 Water vapour interference
5.9 Vibration
5.10 Alignment
5.11 Time of response
5.12 Power supply variations
5.13 Power supply interruptions and transients
5.14 Recovery from power supply interruption
5.15 Electromagnetic compatibility
5.16 Attenuation of radiation
5.17 Beam blockage
5.18 Long range operation
5.19 Direct solar radiation (applicable for apparatus
intended for outdoor use)
6 Field verification equipment
7 Instructions for use
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