BS EN 16340:2014
$198.66
Safety and control devices for burners and appliances burning gaseous or liquid fuels. Combustion product sensing devices
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 54 |
This European Standard specifies the safety, construction and performance requirements for combustion product sensing devices intended to be used in combustion control systems, hereinafter referred to as CPSD.
This European Standard applies to sensing devices for the measurement of combustion products from burners and appliances for domestic, commercial and industrial use burning:
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gaseous fuels according to EN 437; or
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liquid fuels having a viscosity at the burner inlet of 1,6 mm2/s (cSt) up to 6 mm2/s (cSt) at 20 °C, higher boiling petroleum based first raffinates (viscosity greater than 6 mm2/s), that require preheating for proper atomisation.
This European Standard applies to all types of stationary sensing devices measuring flue gas components O2, CO, CO2, H2, CxHy, NOX, SO2 or for a combination of them (multiple gasses).
This European Standard applies also to sensing devices for extractive systems.
This European Standard does not cover sensor requirements for combustible gas, combustible gas mixture and oil quality.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Classification 4.1 Classes of control 4.2 Groups of control 4.3 Classes of control functions |
| 12 | 5 Units of measurement and test conditions 5.1 Dimensions 5.2 Pressures 5.3 Bending moments and torques 5.4 Test conditions and measurement tolerances 6 Construction requirements 6.1 General 6.2 Mechanical parts of the control 6.2.1 Appearance 6.2.2 Holes |
| 13 | 6.2.3 Breather holes 6.2.4 Test for leakage of breather holes 6.2.5 Screwed fastenings 6.2.6 Jointing 6.2.7 Moving parts 6.2.8 Sealing caps 6.2.9 Dismantling and reassembly 6.2.101 Protection against blockage of inlets 6.3 Materials 6.3.1 General material requirements 6.3.2 Housing 6.3.3 Test for leakage of housing after removal of non-metallic parts |
| 14 | 6.3.4 Zinc alloys 6.3.5 Springs providing closing and/or sealing force 6.3.6 Resistance to corrosion and surface protection 6.3.7 Impregnation 6.3.8 Seals for glands for moving parts 6.3.101 Mounting and fixing elements 6.3.102 Prevention from igniting 6.3.102.1 Requirement 6.3.102.2 Testing of CPSD with flame arrester |
| 16 | 6.3.103 Metallic materials for components in contact with combustion products 6.4 Gas connections 6.4.1 Making connections 6.4.2 Connection sizes 6.4.3 Threads 6.4.4 Union joints 6.4.5 Flanges 6.4.6 Compression fittings 6.4.7 Nipples for pressure test |
| 17 | 6.4.8 Strainers 6.4.101 CPSD connections 6.5 Electronic parts of the control 6.5.1 General 6.5.2 Protection provided by the enclosure 6.5.3 Electrical components 6.5.3.1 Performance of electrical components 6.5.3.2 Test 6.5.3.3 Sensing element |
| 18 | 6.6 Protection against internal faults for the purpose of functional safety 6.6.1 Design and construction requirements 6.6.1.1 Fault avoidance and fault tolerance 6.6.1.2 Reset device 6.6.1.3 Documentation 6.6.2 Class A 6.6.3 Class B 6.6.3.1 Design and construction requirements 6.6.3.2 First fault 6.6.3.3 Fault introduced during lock-out or safety-shut-down 6.6.3.4 Fault introduced during the inoperative state |
| 19 | 6.6.4 Class C 6.6.4.1 Design and construction requirements 6.6.4.2 First fault 6.6.4.3 Second fault 6.6.4.4 Faults during lock-out or safety-shut-down 6.6.4.101 Faults during inoperative state |
| 20 | 6.6.5 Circuit and construction evaluation 6.6.5.1 Test conditions 6.6.5.2 Test criteria 6.6.5.3 Assessment 7 Performance 7.1 General |
| 21 | 7.2 Leak-tightness 7.2.101 Leak-tightness provided by the housing and mounting to ambient 7.2.102 Leak-tightness of the CPSD including mounting elements, nipples and connections 7.3 Test for leak-tightness 7.3.1 General 7.3.2 External leak-tightness 7.3.3 Internal leak-tightness 7.3.101 Leak-tightness test for CPSD |
| 22 | 7.3.102 Influence of leakage on measurement value 7.3.102.1 General |
| 23 | 7.3.102.2 Flue pipe to ambient 7.3.102.3 Ambient to flue pipe |
| 24 | 7.4 Torsion and bending 7.4.101 General 7.4.102 Torsion 7.4.103 Bending moment 7.5 Torsion and bending tests 7.5.101 Torsion test 7.5.102 Bending test 7.6 Rated flow rate 7.7 Test for rated flow rate 7.8 Durability 7.8.1 Elastomers in contact with gas |
| 25 | 7.8.2 Marking 7.8.3 Tests for marking 7.8.4 Resistance to scratching 7.8.5 Scratch test 7.8.6 Resistance to humidity 7.8.7 Humidity test 7.9 Performance tests for electronic controls 7.10 Long-term performance for electronic controls 7.10.1 General 7.10.2 Stress test 7.10.2.1 Thermal stress test 7.10.2.2 Vibration test 7.10.3 Long term performance test |
| 26 | 7.101 Operation of the CPSD 7.101.1 General 7.101.2 Resolution 7.101.3 Repeatability 7.101.3.1 Requirement |
| 27 | 7.101.3.2 Test 7.101.4 Hysteresis and Linearity 7.101.4.1 Requirement 7.101.4.2 Test |
| 28 | 7.101.5 Drift 7.101.5.1 Requirement 7.101.5.2 Test 7.101.6 Supply voltage variations 7.101.6.1 Requirement 7.101.6.2 Test |
| 29 | 7.101.7 Effect of gas velocity 7.101.7.1 Requirement 7.101.7.2 Test 7.101.8 Response time and offset 7.101.8.1 Requirement 7.101.8.2 Test for response time (Tx) |
| 31 | 7.101.8.3 Test for offset |
| 32 | 7.101.9 Ambient pressure 7.101.9.1 Requirement 7.101.9.2 Test 7.101.10 Ambient temperature 7.101.10.1 Requirement 7.101.10.2 Test |
| 33 | 7.101.11 Flue gas temperature 7.101.11.1 Requirement 7.101.11.2 Test |
| 34 | 7.101.12 Overload 7.101.12.1 Requirement 7.101.12.2 Test |
| 35 | 7.101.13 Humidity Dependency 7.101.13.1 Requirement 7.101.13.2 Test |
| 36 | 7.101.14 Cross Interference 7.101.14.1 Requirement 7.101.14.2 Test 7.101.15 Mounting position influence 7.101.15.1 Requirement |
| 37 | 7.101.15.2 Test 7.102 Endurance 7.102.101 Requirement 7.102.102 Test |
| 38 | 8 EMC/Electrical requirements 8.1 Protection against environmental influences 8.2 Supply voltage variations below 85 % of rated voltage 8.3 Short-term voltage interruptions and decreases 8.4 Supply frequency variations 8.5 Surge immunity test |
| 39 | 8.6 Electrical fast transient/burst 8.7 Immunity to conducted disturbances 8.8 Immunity to radiated fields 8.9 Electrostatic discharge immunity test 8.10 Power frequency magnetic field immunity test 8.11 Electrical requirements 9 Marking, installation and operating instructions 9.1 Marking 9.2 Installation and operating instructions |
| 40 | 9.3 Warning notice |
| 41 | Annex A (informative)Gas connections in common use in the various countries |
| 42 | Annex B (informative)Leak-tightness test — volumetric method |
| 43 | Annex C (informative)Leak-tightness test — pressure loss method |
| 44 | Annex D (normative)Conversion of pressure loss into leakage rate |
| 45 | Annex E (normative)Electrical/electronic component fault modes |
| 46 | Annex F (normative)Additional requirements for safety accessories and pressure accessories as defined in EU Directive 97/23/EC |
| 47 | Annex G (normative)Materials for pressurized parts |
| 48 | Annex H (informative)Additional materials for pressurized parts |
| 49 | Annex I (normative)Requirements for controls used in DC supplied gas burners and gas burning appliances |
| 50 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC relating to appliances burning gaseous fuels |
