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7

Operation

Operation is described in Chapter 6,
"DWM/A-L Module BASICS". All
safety- and hazard warnings contained
in Chapter 6, "DWM/A-L Module
BASICS", must be followed. For opera-
tion in explosion-hazard zones, all valid
provisions for safety, accident preven-
tion and environmental protection must
be complied with.

Operation

19.04.2017

DWM/A-L Module ATEX Flow Monitor

41

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Содержание DWM/A-L

Страница 1: ...DWM A L Module ATEX Flow Monitor Operating Instructions Flow monitor for use in explosion hazard zones Series DWM A L Typ DWM A L1 5 thru DWM A L100 Read the instructions prior to performing any task ...

Страница 2: ...bH Im Gewerbegebiet 2 63831 Wiesen Germany Telephone 49 6096 9720 0 Fax 49 6096 9720 30 Email sales meister flow com Internet www meister flow com These instructions were compiled by Meister Strömungstechnik GmbH Subject to change without notice 19 04 2017 DWM A L Module ATEX Flow Monitor 2 ...

Страница 3: ...rer does not accept any liability arising from n non observance of any details in these instructions n improper use of the device or use that is not in accordance with these instructions n use of non trained personnel n unauthorized retrofitting or tech nical changes that have not been authorized by the manufacturer n use of non approved replacement parts The duties and obligations agreed upon in ...

Страница 4: ...d electrical accessories 14 3 1 1 Exterior of the device 14 3 1 2 Interior of the device 14 3 1 3 General safety information for the mechanical component of the device 15 3 1 4 Categorization of the mechanical component of the flow monitor 16 3 1 5 List of media 19 3 1 6 Applicable documents 21 3 2 Electrical component of the device limiting contacts 24 3 2 1 Categorization of the electrical compo...

Страница 5: ...ntact protection measures 39 7 Operation 41 8 Troubleshooting 42 9 Maintenance 43 9 1 Return Materials 43 9 1 1 Return Materials Authorization 43 10 Dissambly and disposal 44 11 Technical data 45 11 1 Dimension sheet 45 11 2 General specifications 48 11 3 Replacement parts 50 12 Appendix 56 13 Index 57 Table of contents 19 04 2017 DWM A L Module ATEX Flow Monitor 5 ...

Страница 6: ...alue on the adjustment scale The pointer on the mechanical indicator shows the actual flow rate Electrical monitoring is accomplished by explosion proof switch contacts The electrical connection is via the cast on power cable 1 2 Warranty and guar antee provisions Warranty and guarantee provisions are contained in the general terms and conditions of the manufacturer 1 3 Customer service For techni...

Страница 7: ...symbols The safety instruc tions are preceded by signal words that indicate the level of danger hazard To prevent accidents or injuries to per sons as well as damage to property always observe the safety instructions and proceed carefully DANGER This combination of symbol and signal word indicates an imme diate dangerous situation that results in death or serious injury if it is not avoided WARNIN...

Страница 8: ...ults lists enumerations ref erences and other elements Designates step by step han dling instructions ð Designates a state or an automatic sequence as a result of a specific operating step n Designates randomly ordered enu merations and list entries Ä Signs used in these instructions on page 8 designates references to chapters in these instructions 2 2 Correct use in explosion hazard zones The dev...

Страница 9: ...itor with solenoid valves Do not subject the flow mon itor to vibrations Do not subject the flow mon itor to pressure surges Do not use the flow monitor with media containing solids or abrasives Only use the flow monitor with media previously approved by the manufacturer Do not use the flow monitor as the sole monitoring device to prevent dangerous conditions Do not install the flow monitor as a l...

Страница 10: ...sult in dangerous situations 2 3 Special precautions for use in explosion hazard zones The following chapter lists residual risks that might arise from the device To reduce health risks and prevent dangerous situations observe the safety instructions listed here the safety instructions listed in other chap ters of these Operating Instructions as well as all safety instructions listed in the Operat...

Страница 11: ...tor Intrusion of foreign materials which can generate sparks is not permitted and must be excluded by the operator Friction which may cause local heat build up and sparking is not permitted and must be excluded by the oper ator Impact processes involving materials such as rust or light alloys e g aluminum or mag nesium are not permitted and must be excluded by the oper ator High voltage and curren...

Страница 12: ...its hazard zone dangers arise which may result in serious injuries and considerable damage to property All work must be performed by qualified personnel only Keep unqualified personnel away from hazard zones The personnel requirements as formu lated in the Operating Instructions for DWM A L Module BASICS Chapter 2 4 are valid For employment within explosion hazard zones only trained and qualified ...

Страница 13: ...ipment Spe cial reference to this equipment is made in the Operating Instructions for DWM A L Module BASICS The facility operator must ensure that the protective clothing used in explosion hazard zone is suitable and approved 2 6 Protective systems The design of the safety features is described in the Operating Instructions DWM A L Module BASICS The operator must ensure that all appli cable regula...

Страница 14: ... n the medium is not aggressive to the wetted parts of the device and n the device is approved by the manufacturer for use with the medium n It is permissible to occasionally have an explosive gas air mixture inside the device explosion hazard zone 1 At no time may gasses of explosion hazard group IIC e g hydrogen or acetylene be present in the interior of the device n Explosive dust air mixtures ...

Страница 15: ...uency genera tors are not permitted and must be excluded by the operator n Electromagnetic waves in a fre quency range between 3 1011 to 3 1015 Hz which can occur as radiation from protective systems or components e g lamps arc lamps lasers are not permitted and must be excluded by the oper ator n Devices which can focus radiation and which can provide an ignition source for particles and surfaces...

Страница 16: ...he medium does not freeze The maximum ambient tempera ture for a device without limit switch contacts must be less than the ignition temperature of the medium and the ignition temperature of the atmosphere surrounding the device and less than or equal to 80 C It is the responsibility of the oper ator to ensure that these require ments are met concurrently The minimum ambient tempera ture for a dev...

Страница 17: ...pera ture for a device with these limit switch contacts must be less than the ignition temperature of the medium and the ignition temperature of the atmosphere surrounding the device and less than or equal to 80 C It is the responsibility of the oper ator to ensure that these require ments are met concurrently The minimum media tempera ture for a device with these limit switch contacts must be hig...

Страница 18: ... TX Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories Categorization of the mechanical component of the flow monitor 19 04 2017 DWM A L Module ATEX Flow Monitor 18 ...

Страница 19: ...59 78 Biodiesel RME Rape seed oil methyl ester 283 ASTME659 78 EDC 1 2 Dichlorethane 440 6 2 16 Natural gas 575 640 4 17 Ethanol 400 3 1 City gas 560 Gaseous mix ture 90 Argon 10 CO2 Gaseous mix ture 96 Argon 4 O2 Helium none none none air Methane 595 4 4 16 5 Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories List of media 19 04 2017 DWM A...

Страница 20: ...ne none none Oil organic Salt solution density 1 35 kg l 20 C Peroxide none none none RAF2 raffinate 2 385 1 6 10 Spirits of Ammonia 25 630 15 28 SO2 Sulphur dioxide none none none Solvana 2000 Universal cleaning agent 236 0 4 7 Petroleum ether 200 0 6 7 Water none none none Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories List of media 1...

Страница 21: ...50 weight dis solved in Water none none none Propane 470 2 2 9 5 n Butane 365 1 4 8 5 3 1 6 Applicable docu ments Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 21 ...

Страница 22: ...Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 22 ...

Страница 23: ...Areas of employment Mechanical component flow meter without limit switch contacts and electrical accessories Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 23 ...

Страница 24: ...ion class Gas mb Encapsulation application in zone 1 and 2 n Ignition protection category Dust td A21 in accordance with process A for zone 21 IP67 n Temperature class Gas T5 T6 n Maximum permissible surface tem perature Dust T 80 C T 100 C 3 2 2 Applicable docu ments The electrical limiting contacts were subjected to a design examination PTB 03 ATEX 2154 X The following documents must be observed...

Страница 25: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 25 ...

Страница 26: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 26 ...

Страница 27: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 27 ...

Страница 28: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 28 ...

Страница 29: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 29 ...

Страница 30: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 30 ...

Страница 31: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 31 ...

Страница 32: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 32 ...

Страница 33: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 33 ...

Страница 34: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 34 ...

Страница 35: ...Areas of employment Electrical component of the device limiting contacts Applicable documents 19 04 2017 DWM A L Module ATEX Flow Monitor 35 ...

Страница 36: ... 4 Cat egorization of the mechanical compo nent of the flow monitor on page 16 4 2 Switch contact oper ating data Operating data for the explosion proof switch unit with design examination certificate PTB 03 ATEX 2154 X The following limit values must not be exceeded not even for brief periods Normally Open Contact NOC SEM E T6 Max operating voltage 250 V Max switch cur rent 2 A Max switching capa...

Страница 37: ...imum load 3 VA Max ambient temp for switch contact 75 C Change Over Contact SEM A T5 Max operating voltage 250 V Max switching current 1 A Max switch capacity 30 VA Minimum load 3 VA Max ambient temp for switch contact 90 C Operating data Switch contact operating data 19 04 2017 DWM A L Module ATEX Flow Monitor 37 ...

Страница 38: ...alid provisions for safety accident prevention and envi ronmental protection must be complied with Packaging procedures wrapping unwrapping may only be conducted outside the explosion hazard zone DANGER Danger to life if packaging pro cedures are conducted in explo sion hazard zones n Packaging procedures may only be conducted outside the explo sion hazard zone Transport packaging and storage 19 0...

Страница 39: ...perator is responsible for the installation of an appropriate impact protection shield 6 4 Electrical connec tion Electrical connection is accomplished through the connection cable leading from the switch housing All safety advisories contained in the Operating Instructions for DWM A L Module BASICS Chapter 5 must be observed Additionally for operation in explosion hazard zones all valid provi sio...

Страница 40: ...alid safety and accident pre vention measures for explosion hazard zones and the specifications contained in these Operating Instructions Installation and initial startup Contact protection measures 19 04 2017 DWM A L Module ATEX Flow Monitor 40 ...

Страница 41: ...and hazard warnings contained in Chapter 6 DWM A L Module BASICS must be followed For opera tion in explosion hazard zones all valid provisions for safety accident preven tion and environmental protection must be complied with Operation 19 04 2017 DWM A L Module ATEX Flow Monitor 41 ...

Страница 42: ... safety and hazard warnings contained in Chapter 7 DWM A L Module BASICS must be followed Additionally for operation in explosion hazard zones all valid provisions for safety accident preven tion and environmental protection must be complied with Troubleshooting 19 04 2017 DWM A L Module ATEX Flow Monitor 42 ...

Страница 43: ...ard zone DANGER Danger to life if maintenance procedures are performed in the explosion hazard zone Maintenance procedures may only be performed outside the explosion hazard zone 9 1 Return Materials 9 1 1 Return Materials Authorization For products being returned regard less of the reason the currently valid provisions of the returns policy set by MEISTER will apply Return shipments which do not ...

Страница 44: ... prevention and environmental protection must be com plied with Disassembly of the device may only be performed outside the explosion hazard zone DANGER Danger to life if disassembly procedures are performed in the explosion hazard zone Disassembly may only be per formed outside the explosion hazard zone Disassembly in an explosion hazard zone may only be per formed if there is no risk from an exp...

Страница 45: ...11 Technical data 11 1 Dimension sheet Fig 2 Type DWM A L1 5 through DWM A L18 Technical data Dimension sheet 19 04 2017 DWM A L Module ATEX Flow Monitor 45 ...

Страница 46: ...Fig 3 Type DWM A L18 through DWM A L50 G Technical data Dimension sheet 19 04 2017 DWM A L Module ATEX Flow Monitor 46 ...

Страница 47: ...Fig 4 DWM A L50 through DWM A L100 G1 Technical data Dimension sheet 19 04 2017 DWM A L Module ATEX Flow Monitor 47 ...

Страница 48: ... 131 15 1 2 15 27 117 131 14 DWM A L8 1 4 8 27 117 131 10 3 8 10 27 117 131 15 1 2 15 27 117 131 14 DWM A L12 1 4 8 27 117 131 10 3 8 10 27 117 131 15 1 2 15 27 117 131 14 DWM A L18 1 2 15 27 132 146 14 3 4 20 32 132 174 15 DWM A L50 3 4 20 34 130 152 15 1 25 40 156 156 17 DWM A L100 1 25 40 156 156 17 Technical data General specifications 19 04 2017 DWM A L Module ATEX Flow Monitor 48 ...

Страница 49: ...5 65 5 ca 52 800 3 8 40 40 47 33 5 65 5 ca 52 800 1 2 40 40 47 33 5 65 5 ca 52 800 DWM A L12 1 4 40 40 47 33 5 65 5 ca 52 800 3 8 40 40 47 33 5 65 5 ca 52 800 1 2 40 40 47 33 5 65 5 ca 52 800 DWM A L18 1 2 40 40 47 33 5 65 5 ca 52 800 3 4 40 40 47 33 5 65 5 ca 52 960 DWM A L50 3 4 40 40 57 ca 62 1450 1 40 40 57 ca 62 1450 DWM A L100 1 40 40 57 ca 62 1450 NPT thread on request Sealed in cable weigh...

Страница 50: ...drawing provides an example of the configuration of a DWM A L ATEX flow monitor The actual configuration may vary depending on the model Fig 5 Type DWM A L1 5 through DWM A L18 Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 50 ...

Страница 51: ...t slot nozzle 5 1 Slot nozzle 6 1 Float with magnets 7 1 Process connection outlet 8 2 Guide rail 9 4 Fixing screws guide rail 10 1 Switch contact ATEX 11 2 Washer 12 2 Set screw switch contact 13 1 Display mechanical Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 51 ...

Страница 52: ...M A L50 G Item Qty Description 1 1 Process connection inlet 2 2 O ring seal 3 2 Centering disc 4 1 Device body 5 1 Pin outlet slot nozzle 6 1 Slot nozzle Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 52 ...

Страница 53: ... 8 1 Process connection outlet 9 2 Guide rail 10 4 Fixing screw guide rail 11 1 Switch contact ATEX 12 2 Washer 13 2 Set screw switch contact 14 1 Display mechanical Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 53 ...

Страница 54: ...A L100 G1 Item Qty Description 1 1 Threaded ring inlet 2 1 Centering disc 3 1 Device body 4 1 Pin outlet slot nozzle 5 1 Slot nozzle 6 1 Float with magnets Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 54 ...

Страница 55: ...aded ring outlet 8 2 Guide rail 9 4 Fixing screw guide rail 10 1 Switch contact ATEX 11 2 Washer 12 2 Set screw switch contact 13 1 Display mechanical Technical data Replacement parts 19 04 2017 DWM A L Module ATEX Flow Monitor 55 ...

Страница 56: ...re not to be employed These tools may only be employed when there is no potentially explosive atmosphere present The use of steel tools of any kind is prohibited in hazard zone 1 if there is a risk of explosion due to substances in explosion hazard group IIC in accordance with IEC TR3 60079 20 for example acetylene hydrogen Appendix 19 04 2017 DWM A L Module ATEX Flow Monitor 56 ...

Страница 57: ...s 39 F Flow monitor protection 39 G General safety 7 Grounding 39 I Ignition protection category 24 Initial start up 39 Installation 39 L Limitation of liability 3 Limiting contacts 24 List of media 19 M Maintenance 43 O Operating data mechanical component 36 switch contact 36 Operation 41 P Packaging 38 Personnel 12 Precautions explosions 11 general 10 Protective systems 13 R Replacement parts 50...

Страница 58: ...echnical data general specifications 48 Temperature class 24 Temperature class internal TX external TX 18 Tools 39 56 Transport 38 Troubleshooting 42 W Warranty and guarantee provisions 6 Index 19 04 2017 DWM A L Module ATEX Flow Monitor 58 ...

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