Summary of Contents for Meister DWM/A-L
- Page 1 Operating Instructions DWM/A-L Module ATEX Flow Monitor 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!
- Page 2 Germany Telephone: +49 6096 9720 - 0 Fax: +49 6096 9720 - 30 Email: sales@meister-flow.com Internet: www.meister-flow.com DWM/A-L Module ATEX, 1, en_US These instructions were compiled by: Meister Strömungstechnik GmbH Subject to change without notice © Meister Strömungstechnik GmbH 2014 19.04.2017...
- Page 3 © Meister Strömungstechnik GmbH non-observance of any details in Im Gewerbegebiet 2 these instructions 63831 Wiesen improper use of the device, or use that is not in accordance with Germany these instructions use of non-trained personnel 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 4: Table Of Contents
3.2.1 Categorization of the electrical component of the flow monitor (limit switch contacts)..............24 3.2.2 Applicable documents..............24 Operating data..................36 4.1 Operating data for the mechanical component of the device..... 36 4.2 Switch contact operating data............36 Transport, packaging and storage............38 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 5 Maintenance....................43 9.1 Return Materials................. 43 9.1.1 Return Materials Authorization............43 Dissambly and disposal................44 Technical data................... 45 11.1 Dimension sheet................45 11.2 General specifications..............48 11.3 Replacement parts................50 Appendix....................56 Index......................57 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 6: Overview
1.2 Warranty and guar- antee provisions Warranty and guarantee provisions are contained in the general terms and conditions of the manufacturer. Fig. 1: DWM/A-L flow monitor 1.3 Customer service Switchpoint adjustment scale Explosion-proof switch contact For technical information, please con-... -
Page 7: Safety
WARNING! This combination of symbol and signal word indicates a possibly dangerous situation that might result in death or serious injuries if it is not avoided. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 8: Correct Use In Explosion-Hazard Zones
The flow monitor serves exclusively for monitoring the continuous flow of gas- eous media. The areas of application are specified in Chapter 3 of these instructions. The admissible operating conditions are specified in Chapter 4 of these instructions. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 9 The flow monitor must be installed so, as to preclude damage by outside force. If necessary, install an appro- priate impact protection device – The flow monitor may be installed in explosion-hazard zones only if: 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 10: Special Precautions For Use In Explosion-Hazard Zones
. Incorrect use of the flow monitor may result 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. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 11 – Chemical reactions, pyrolysis lasers), are not permitted and or biological processes inside must be excluded by the oper- the flow meter/flow monitor ator. are not permitted and must be excluded by the operator. 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 12: Personnel Requirements
Authorized personnel is to be restricted to those persons who can be expected to carry out their work reliably. Persons whose ability to respond is influenced, e.g. by drugs, alcohol or medication, are not authorized. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 13: Personal Safety Equipment
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 regulations which apply to opera- tion in an explosion-hazard zone are met. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 14: Areas Of Employment
3.1.1 Exterior of the the medium is not aggressive to device the wetted parts of the device, and Devices of the DWM/A-L type may the device is approved by the be employed in areas in which an manufacturer for use with the explosive atmosphere, composed medium. -
Page 15: General Safety Information For The Mechanical Component Of The Device
The device must be installed in ator. such a way as to preclude damage by outside force. It is the responsi- bility of the operator to install appropriate protective devices. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 16: Categorization Of The Mechanical Component Of The Flow Monitor
It is the responsibility of the oper- than: ator to ensure that these require- ments are met concurrently. – the ignition temperature of the medium and 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 17 PTB 03 ATEX 2154 X Labeling of the mechanical compo- II 2 G Ex mb II T5 nent of the flow meter/monitor: II 2 D Ex tD A21 IP67 T100 °C Internal: II 2 G IIB TX 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 18 Areas of employment Mechanical component (flow meter without limit switch contacts and electrical accessories) > Categorization of the mechanical component of the flow monitor External: II 2 GD IIC TX 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 19: List Of Media
(1,2-Dichlorethane) 440 Natural gas 575 - 640 Ethanol City gas Gaseous mix- ture 90 % Argon + 10 % Gaseous mix- ture 96 % Argon + 4 % O Helium none none none Methane 16,5 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 20 1,35 kg/l 20 °C Peroxide none none none RAF2 raffinate 2 Spirits of Ammonia (25%) Sulphur dioxide none none none Solvana 2000 (Universal cleaning agent) Petroleum ether >200 Water none none none 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 21: Applicable Documents
Mechanical component (flow meter without limit switch contacts and electrical accessories) > Applicable documents Water / Nitrite- solution Hydrogenper- none none none oxyde 50% (ultra pure) Hydrogenper- none none none oxyde 50 weight.-%, dis- solved in Water Propane n-Butane 3.1.6 Applicable docu- ments 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 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...
- Page 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...
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Page 24: Electrical Component Of The Device (Limiting Contacts)
The electrical limiting contacts may observed: only be employed in combination with Manufacturer's declaration for the DWM/A-L type devices, in areas in employment of explosion-proof switch which an explosive atmosphere, com- units within a safety concept posed of a gas/air- or dust/air-mixture, may occasionally occur. - Page 25 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 26 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 27 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 28 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 29 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 30 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 31 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 32 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 33 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 34 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 35 Areas of employment Electrical component of the device (limiting contacts) > Applicable documents 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 36: Operating Data
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 250 V voltage 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 37 75 °C temp for switch contact Change-Over Contact, SEM-A (T5) Max operating 250 V voltage Max switching current Max switch 30 VA capacity Minimum load 3 VA Max ambient 90 °C temp for switch contact 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 38: Transport, Packaging And Storage
Transport, packaging and storage Transport, packaging and storage Transport, packaging and storage in non-explosion-hazard zones are described in Chapter 4, "DWM/A-L Module BASICS". In explosion-hazard zones, in addition to the requirements described in the above reference, all valid provisions for... -
Page 39: Installation And Initial Startup
Installation and initial startup 6.4 Electrical connec- Installation and initial startup in non- explosion-hazard zones are described tion in Chapter 5, "DWM/A-L Module Electrical connection is accomplished BASICS". In addition, for installation through the connection cable leading and initial startup in explosion-hazard from the switch housing. - Page 40 Installation and initial startup Contact protection measures may be taken, which are consistent with all valid safety and accident pre- vention measures for explosion-hazard zones and the specifications contained in these Operating Instructions. 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 41: Operation
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. -
Page 42: Troubleshooting
Troubleshooting Troubleshooting The procedures in case of malfunction are described in Chapter 7, "DWM/A-L Module BASICS". All 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. -
Page 43: Maintenance
MEISTER will apply. Return shipments which do not comply with the returns policy may be refused by MEISTER at the expense of the consignor. 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 44: Dissambly And Disposal
Dissambly and disposal Dissambly and disposal Disassembly and disposal procedures are described in Chapter 9, "DWM/A-L Module BASICS". All safety- and hazard warnings, contained in Chapter 9, "DWM/A-L Module BASICS", must be followed. For operation in explo- sion-hazard zones, all valid provisions... -
Page 45: Technical Data
Technical data Dimension sheet Technical data 11.1 Dimension sheet Fig. 2: Type DWM/A-L1,5 through DWM/A-L18 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 46 Technical data Dimension sheet Fig. 3: Type DWM/A-L18 through DWM/A-L50 (G¾") 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 47 Technical data Dimension sheet Fig. 4: DWM/A-L50 through DWM/A-L100 (G1") 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 48: General Specifications
Technical data General specifications 11.2 General specifications Type Overall dimensions (mm) DWM/A- L1,5 DWM/A-L3 DWM/A-L8 DWM/A-L12 1/4 DWM/A-L18 1/2 DWM/A-L50 3/4 DWM/A- L100 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 49 52 DWM/A- 33,5 65,5 ca. 52 33,5 65,5 ca. 52 DWM/A- ca. 62 1450 ca. 62 1450 DWM/A- ca. 62 1450 L100 * NPT thread on request **Sealed-in cable weight, 2m approx. 80g 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 50: Replacement Parts
Replacement parts 11.3 Replacement parts The following replacement parts 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 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 51 Process connection (inlet) O-ring (seal) Device body Pin (outlet) slot nozzle Slot nozzle Float with magnets Process connection (outlet) Guide rail Fixing screws (guide rail) Switch contact ATEX Washer Set screw, switch contact Display, mechanical 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 52 Technical data Replacement parts Fig. 6: Type DWM/A-L18 through DWM/A-L50 (G¾") Item Description Process connection (inlet) O-ring (seal) Centering disc Device body Pin (outlet) slot nozzle Slot nozzle 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 53 Technical data Replacement parts Item Description Float with magnets Process connection (outlet) Guide rail Fixing screw (guide rail) Switch contact ATEX Washer Set screw, switch contact Display, mechanical 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 54 Technical data Replacement parts Fig. 7: Type DWM/A-L50 through DWM/A-L100 (G1") Item Description Threaded ring (inlet) Centering disc Device body Pin (outlet) slot nozzle Slot nozzle Float with magnets 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
- Page 55 Technical data Replacement parts Item Description Threaded ring (outlet) Guide rail Fixing screw (guide rail) Switch contact ATEX Washer Set screw, switch contact Display, mechanical 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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Page 56: Appendix
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). 19.04.2017 DWM/A-L Module ATEX Flow Monitor... -
Page 57: Index
Grounding ....39 Storage ....38 19.04.2017 DWM/A-L Module ATEX Flow Monitor... - Page 58 Temperature class ... . 24 Temperature class internal: TX, external: TX ....18 19.04.2017 DWM/A-L Module ATEX Flow Monitor...
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