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BS EN 50104:2019+A1:2023

BS EN 50104:2019+A1:2023

$167.15

Electrical equipment for the detection and measurement of oxygen. Performance requirements and test methods

Published By Publication Date Number of Pages
BSI 2023 40
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This document specifies general requirements for design, testing and performance, and describes the test methods that apply to portable, transportable and fixed equipment for the measurement of the oxygen concentration in gas mixtures indicating up to 25 % (v/v).

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PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
8 3 Terms and definitions
14 4 General requirements
4.1 Introduction
4.2 Design
4.2.1 General
4.2.2 Indicating devices
4.2.2.1 Indicators
4.2.2.2 Display and other devices for indication of measured values
15 4.2.2.3 Suppression of indication and measured values below zero
4.2.2.4 Indicator light
4.2.3 Alarm signals
4.2.3.1 Alarm settings
16 4.2.3.2 Alarm output functions
4.2.4 Fault signals
4.2.5 Adjustments
17 4.2.6 Battery-powered equipment
4.2.7 Gas detection transmitter for use with separate gas detection control units
4.2.8 Separate gas detection control units for use with gas detection transmitter(s)
4.2.9 Equipment using software and/or digital technologies
4.3 Labelling and marking
4.4 Instruction manual
20 5 Test methods
5.1 Introduction
5.2 General requirements for tests
5.2.1 Samples and sequence of tests
5.2.1.1 Test samples
21 5.2.1.2 Sequence
5.2.1.3 Gas detection transmitters
5.2.1.4 Separate gas detection control units
5.2.2 Preparation of equipment before testing
22 5.2.3 Mask for calibration and test
5.3 Normal conditions for test
5.3.1 General
5.3.2 Test gas(es)
5.3.3 Flow rate for test gases
23 5.3.4 Power supply
5.3.5 Temperature
5.3.6 Pressure
5.3.7 Humidity
5.3.8 Acclimation time
5.3.9 Orientation
5.3.10 Communications options
5.3.11 Gas detection equipment as part of systems
24 5.4 Test methods and performance requirements
5.4.1 General
5.4.2 Unpowered storage
5.4.2.1 Test
5.4.2.2 Initial preparation of the equipment
25 5.4.3 Calibration curve and repeatability
5.4.3.1 Calibration curve
5.4.3.2 Repeatability
5.4.4 Stability
5.4.4.1 Battery-powered equipment
5.4.4.2 Fixed and transportable equipment
5.4.4.3 Portable equipment
26 5.4.5 Alarm set-point(s)
5.4.5.1 General
5.4.5.2 Increasing oxygen concentration (equipment intended for measuring oxygen deficiency or enrichment)
5.4.5.3 Increasing oxygen concentration (equipment intended for measuring inertisation)
5.4.5.4 Decreasing oxygen concentration (equipment intended for measuring oxygen deficiency or enrichment)
5.4.6 Temperature
27 5.4.7 Pressure
5.4.8 Humidity
28 5.4.9 Air velocity
5.4.10 Flow rate
5.4.11 Orientation
5.4.11.1 Portable equipment and mobile sensors of fixed equipment
29 5.4.11.2 Fixed and transportable equipment
5.4.12 Vibration
5.4.12.1 General
5.4.12.2 Test equipment
5.4.12.3 Procedures
30 5.4.13 Drop test
31 5.4.14 Warm-up time
5.4.15 Time of response
5.4.16 Battery capacity
32 5.4.17 Power supply variations
5.4.18 Electromagnetic compatibility
5.4.19 Addition of sampling probe
33 5.4.20 Poisons and other gases
5.4.20.1 General
5.4.20.2 Equipment with electrochemical sensors
5.4.20.3 Equipment with zirconium dioxide (ZrO2) sensors
5.4.21 Field calibration kit
5.4.22 Operation at or below the lower limit of the measuring range
34 5.4.23 Verification of software and digital components
35 Annex A (informative)Significant changes between this edition and EN 50104:2010
38 Annex ZZ (informative)Relationship between this European standard and the essential requirements of Directive 2014/34/EU aimed to be covered

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BS EN 50104:2019+A1:2023
$167.15