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Meister DWG Series, Руководство по эксплуатации

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10.4  General specifications

Type

Overall dimensions (mm)

G

DN

SW

L1

L2

T

DWG-1,5

1/4"

8

32

121

132

10

3/8"

10

32

121

135

15

1/2"

15

32

121

135

14

DWG-3

1/4"

8

32

121

132

10

3/8"

10

32

121

135

15

1/2"

15

32

121

135

14

DWG-8

1/4"

8

32

121

132

10

3/8"

10

32

121

135

15

1/2"

15

32

121

135

14

DWG-12

1/4"

8

32

121

132

10

3/8"

10

32

121

135

15

1/2"

15

32

121

135

14

DWG-18

1/2"

15

32

143

161

14

3/4"

20

32

143

166

15

DWG-35

3/4"

20

41

143

163

15

1"

25

41

143

181

17

DWG-50

3/4"

20

41

143

163

15

1"

25

41

143

181

17

Technical data

General specifications 

03.09.2018

DWG Module BASICS Flow Monitor

77

Содержание DWG Series

Страница 1: ...DWG Module BASICS Flow Monitor Operating instructions Series DWG Type DWG 1 5 thru 50 Read this manual prior to performing any task ...

Страница 2: ...H Im Gewerbegebiet 2 63831 Wiesen Germany Telephone 49 6096 9720 0 Fax 49 6096 9720 30 E mail sales meister flow com Internet www meister flow com These instructions were compiled by Meister Strömungstechnik GmbH Subject to change without notice 03 09 2018 DWG Module BASICS Flow Monitor 2 ...

Страница 3: ...turer 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 i...

Страница 4: ...3 5 Hazards caused by media 17 2 4 Personnel requirements 18 2 5 Personal safety equipment 18 2 6 Protective systems 19 2 7 Replacement parts 20 2 8 Environmental protection 20 2 9 Responsibility of the owner 21 3 Design and function 23 3 1 Overview 23 3 2 Device description 23 3 3 Component description 24 4 Transport packaging and storage 25 4 1 Safety instructions for transport 25 4 2 Transport ...

Страница 5: ... 42 5 8 Plug connection 43 5 9 Contact protection measures 45 6 Operation 47 6 1 Setting the switch point 47 6 2 Checking the flow 49 7 Troubleshooting 51 7 1 Safety 51 7 2 Troubleshooting guide 53 8 Maintenance 55 8 1 Safety 55 8 2 Maintenance plan 55 8 3 Removal from the pipe system 56 8 4 Disassembly 58 8 5 Maintenance 61 8 5 1 Cleaning 62 8 5 2 Parts replacement 63 8 5 3 Assembly 63 8 5 4 Swit...

Страница 6: ... 10 3 Dimension sheet 76 10 4 General specifications 77 10 5 Electrical specifications 79 10 5 1 Electrical specifications for UL Recognized devices 80 10 6 Measuring ranges 81 10 6 1 Standard measuring ranges 81 10 7 Operating data 82 11 Annex 84 11 1 Tightening torque of screws 84 11 2 Replacement parts 84 11 3 Tools 86 11 4 Sealant 86 11 5 Lubricants 87 12 Index 88 Table of contents 03 09 2018 ...

Страница 7: ...40 Fig 19 Switch position under no flow condition 40 Fig 20 Switch position under no flow condition 41 Fig 21 Switch position under no flow condition 42 Fig 22 Detach socket 43 Fig 23 Remove socket 43 Fig 24 Loosen inner section 43 Fig 25 Loosen the screw con nection 44 Fig 26 Pin assignment plug socket normally open contact SG 30 with con nector in compliance with EN175301 803 44 Fig 27 Pin assig...

Страница 8: ...g slot nozzle buffer 68 Fig 55 Position the outlet process connection 69 Fig 56 Tighten hex socket screws 69 Fig 57 Check for free move ment 70 Fig 58 Loosen female socket 70 Fig 59 Remove the female socket 70 Fig 60 Loosen set screws 71 Fig 61 Release the guide rail 71 Fig 62 Rotate guide rail to the side 71 Fig 63 Remove switch contact 71 Fig 64 Device data plate 75 Fig 65 Switch contact rating ...

Страница 9: ...List of tables Table 1 Correct use in non hazard areas 13 Table 2 Correct use of UL Rec ognized Components in non hazard areas 13 List of tables 03 09 2018 DWG Module BASICS Flow Monitor 9 ...

Страница 10: ...the float is the read off point External measuring devices can be connected at the socket 1 2 Warranty and guar antee provisions Warranty and guarantee provisions are contained in the general terms and conditions of Meister Strömung stechnik 1 3 Customer service For technical support please contact our customer service department for contact details see Page 2 Furthermore our staff is always inter...

Страница 11: ...by symbols The safety instructions are preceded by signal words that indicate the level of danger hazard To prevent accidents or injury 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 condition that results in death or serious injury if it is not avoided WARNIN...

Страница 12: ...tion for efficient and failure free operation Signs used in these instructions The following signs and highlightings are used in these instructions to iden tify handling instructions the descrip tion of results 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 Des...

Страница 13: ...g Instructions DWG Module ATEX Intended use in explosion hazard zones includes the observance of all specifications in these Operating Instructions as well as those for DWG Module ATEX Any additional or different application above or beyond the correct use in accordance with these instructions is deemed as incorrect use WARNING Danger due to incorrect use Incorrect use of the flow mon itor may res...

Страница 14: ...m the device To reduce health risks and prevent dangerous conditions observe the safety instructions listed here as well as the safety instructions in the other chapters of these operating instruc tions DANGER Employment of the device in explosion hazard zones requires the observance of the Operating Instructions for DWG Module ATEX including all hazard state ments and warnings therein These opera...

Страница 15: ...ty rules when doing so Isolate disconnect Secure against switching back on Check for absence of voltage Ground and short Cover or cordon off other live parts in the vicinity Never bridge fuses or put them out of operation Always observe the correct current ratings when replacing fuses Keep moisture away from live parts This can result in short circuit 2 3 2 Mechanical hazards WARNING Risk of injur...

Страница 16: ... or cold surfaces Surfaces of components may heat up cool down dramatically due to the media flowing through them Skin contact with hot or cold surfaces may cause severe skin burn or frostbite Always wear temperature resistant protective work clothing and protective gloves when working near hot cold surfaces Before commencing work make sure that all surfaces have been cooled down or warmed up to a...

Страница 17: ... and put away metal objects before main tenance work jewelry watches writing imple ments etc Do not place any electronic devices within the vicinity of the magnetic source These could be damaged Do not place any electronic storage media credit cards etc within the vicinity of the magnetic source Data could be deleted 2 3 5 Hazards caused by media Hazardous media WARNING Risk of injury from hazardo...

Страница 18: ...erience as well as knowledge of the relevant standards and regula tions the qualified electrician is able to independently perform work on the electrical systems as well as to detect and avoid possible risks and dangers Additionally the electrician must pro vide proof of his her professional quali fication that certifies his her ability to perform work on electrical systems The qualified electrici...

Страница 19: ...ect against hazardous media leaks and hazardous media residue in the device Goggles The goggles are used to protect the eyes from flying debris and splashing fluid Protective gloves Protective gloves protect the hands from friction burns grazing abrasion surface cuts or deeper injuries as well as from direct contact with hot or cold surfaces 2 6 Protective systems Integration within an emergency s...

Страница 20: ...oper handling of envi ronmentally hazardous sub stances Serious environmental damage may result if substances harmful to the environment are handled incorrectly especially if they are disposed of improperly Always observe the instruc tions listed below on the handling and disposal of substances harmful to the environment If harmful substances are released into the environ ment take immediate count...

Страница 21: ...nt to addi tionally determine the risks resulting from the special work conditions arising at the location at which the device is used espe cially in regard to the media used He must then implement these within Operating Instructions for use of the device n For the USA The Occupational Health and Safety Act of 1970 stipulates that it is the duty of the owner to pro vide a safe workplace He must he...

Страница 22: ...er sonnel with the required safety equipment and must instruct them that its wear is mandatory Additionally the owner is responsible for ensuring that the device is always kept in a technically perfect condition The following therefore applies n The owner must implement suit able safety measures appropriate to the media used n Different media have different severities of influence on the soiling a...

Страница 23: ...onitor is moved by the flowing medium A mag netic field is generated by the magnets inside the float The position of the float is detected by the switch contact In addition to electrical control by the Reed contact switch contact the cur rent flow can also be read off on the measuring scale on the sight glass Applications for DWG flow monitors are for example cooling circuits The device monitors t...

Страница 24: ...act is cast into the switch contact Fig 3 1 The device is supplied with a connector Fig 3 2 Sight glass Fig 4 Sight glass A measuring scale is burnt onto the sight glass from which the current rate of flow can be read off Design and function Component description 03 09 2018 DWG Module BASICS Flow Monitor 24 ...

Страница 25: ... and check for trans port damages If there are any visible external trans port damages proceed as follows n Do not accept the delivery n Note the damage in the shipping documents or on the delivery note of the transporter and have the driver confirm by signature n Initiate a claim for damages Make a claim for each fault as soon as it is detected Claims for damages can only be invoked within the va...

Страница 26: ...ate the top side of the package They must always point upwards otherwise the content may be damaged Fragile Designates packages with breakable or damageable contents Handle the package carefully and do not allow it to fall or be subjected to jarring or severe vibration 4 5 Storage Storing the packages Store the packages under the following conditions n Do not store in the open n Store dry and dust...

Страница 27: ...age instructions in addition to the instructions listed here may be listed on the packages Follow these instructions also Transport packaging and storage Storage 03 09 2018 DWG Module BASICS Flow Monitor 27 ...

Страница 28: ...ompli ance with the specifications and instructions in these Operating Instructions Safeguard against restart WARNING Danger to life due to unau thorized restart There is a risk of severe or even fatal injury due to unau thorized restart of the power supply during installation Before commencing work switch off the power supply to the entire system plant and secure against restart 5 2 Requirements ...

Страница 29: ... n max relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 rela tive humidity at 40 C n mains supply voltage fluctuations up to 10 voltage n overvoltage category II n pollution degree 2 5 3 Preparatory work The following requirements must be met during installation to ensure cor rect functioning of the flow monitor WARNING Danger due to incorrect installation If the requirem...

Страница 30: ...The measuring accuracy of the flow monitor is influenced by its position within the pipe system Changes in cross section branch offs or bends in the pipe system impair measuring accu racy Ensure that the unimpeded flow sections are main tained Never reduce the pipe diameter immediately before the device We recommend unimpeded flow sections type BS 228 Installation und initial startup Preparatory w...

Страница 31: ... width must be main tained after the device Unimpeded outlet Fig 7 Unimpeded outlet If the pipe system ends at an unim peded outlet the flow monitor must not be installed directly in front of the opening The device must always be completely filled with media to ensure measuring accuracy Installation und initial startup Preparatory work 03 09 2018 DWG Module BASICS Flow Monitor 31 ...

Страница 32: ... Ensure that there are no foreign particles in the device Ensure that the device is not soiled Do not use any medium containing solids Due to quality assurance meas ures there may be some test medium water residue in the device 1 Unpack the device and visually inspect the device to ensure that it is free of packaging materials 2 Examine the device for residue of test medium and drain if nec essary...

Страница 33: ...the media flowing through them Skin contact with hot or cold surfaces may cause severe skin burn or frostbite Before commencing work ensure that the system has been controlled to a tem perature range between 0 and 40 C Do not touch any parts of the system that are either very cold or very hot Always wear heat resistant or cold resistant protective work clothing and protec tive gloves when working ...

Страница 34: ...ce due to contaminated pipe system Dirt and foreign particles entering the device can damage the device and impair its operation Ensure that the pipe system is clean before installing the device If necessary flush the pipe system with clean medium before installation A suitable sealant must be selected depending on the condition composition of the pipe lines the medium and the operating and enviro...

Страница 35: ...thread Fig 9 1 to the napped area in the threaded direction Observe the quantity recommended by the sealant manufacturer Fig 10 Pipe connection with sealing thread ð The pipeline is now ready for assembly Fig 10 Installation und initial startup Installation in the pipe system 03 09 2018 DWG Module BASICS Flow Monitor 35 ...

Страница 36: ...Fasten the adapter union of the pipeline with an appropriate spanner Fig 11 1 When doing so lock the process connection of the device in place to prevent slip using a suitable spanner Fig 11 2 Fig 12 Screw in the device 3 Keep turning in the adapter union Fig 12 1 while holding the process connection of the device locked Fig 12 2 until the connection is tight 4 Repeat these steps at the other end ...

Страница 37: ... could destroy the device This may result in serious injury to the user 3 NOTICE Completely fill the pipe lines Partial filling s may result in malfunctions and damage to the device 4 NOTICE Vent the pipeline If there are air pockets in the line during the measurement this could result in damage to the device caused by hydraulic shock This may cause malfunctions 5 NOTICE Ensure that the plant is o...

Страница 38: ...Damage to the electrical insulation or single components can be extremely dangerous Only qualified electricians shall work on the electrical system If the insulation is dam aged immediately switch off and have repairs per formed Before commencing work on live parts of electrical systems and components disconnect the equipment and ensure that it remains disconnected for the dura tion of the work Ob...

Страница 39: ...o flow condition Fig 14 Pin assignment plug socket normally open contact The ground pin is not used Change Over COC Fig 15 Switch position under no flow condition Fig 16 Pin assignment plug socket change over contact The ground pin is not used Installation und initial startup Electrical connection Switch contact SG 30 with connector in compliance with EN175301 803 03 09 2018 DWG Module BASICS Flow...

Страница 40: ...et M12x1 Form 30x70 Wiring diagram Normally Open NOC Fig 18 Switch position under no flow condition Change Over COC Fig 19 Switch position under no flow condition Installation und initial startup Electrical connection Switch contact SG 30 with plug connector M12x1 03 09 2018 DWG Module BASICS Flow Monitor 40 ...

Страница 41: ...version or color coded UL version according to the following connection diagrams Wiring diagram Normally Open NOC Fig 20 Switch position under no flow condition Installation und initial startup Electrical connection Switch contact SG 30 with cable 03 09 2018 DWG Module BASICS Flow Monitor 41 ...

Страница 42: ... cation of con nection material Degree of protection EN1753 01 803 with gland Diameter of con nection cable 6 8 mm IP65 M12x1 Plug con nector M12x1 IP67 Cable IP67 5 7 Grounding the device When installing the device in a pipe system ensure that the device is grounded to the pipe system to avoid a dangerous electrical potential differ ence Installation und initial startup Grounding the device 03 09...

Страница 43: ...ig 22 1 from the socket Fig 23 Remove socket 2 Remove the socket Fig 23 1 Fig 24 Loosen inner section 3 Remove the plug insert from the plug by placing a flat bladed screwdriver into the slot Fig 24 1 and carefully prying out the inner section Installation und initial startup Plug connection 03 09 2018 DWG Module BASICS Flow Monitor 43 ...

Страница 44: ...Fig 26 and Fig 27 7 Position the plug insert Fig 24 1 back onto the plug and push until it locks 8 Retighten the screw connection Fig 25 1 by turning it to the right 9 Plug the female socket onto the connector plug and tighten the fixing screw Fig 22 1 Fig 26 Pin assignment plug socket normally open contact SG 30 with connector in compliance with EN175301 803 Installation und initial startup Plug ...

Страница 45: ... n ohmic loads Suitable measures must be taken to protect against overload see following examples Inductive load There is danger of voltage peaks from inductive loads when switching off up to 10 times the rated voltage Induc tive loads are caused by e g n Contactors relays n Solenoid valves n Electric motors Examples of protective measures Fig 28 Example 1 Fig 29 Example 2 Capacitive loads There i...

Страница 46: ...w resistance at low tempera tures Ohmic loads are caused by e g n Filament bulbs n Motors during startup Examples of protective measures Fig 31 Example 1 Fig 32 Example 2 Protection against ohmic loads can be achieved through installation of a resistor in the circuit or by heating the glow filament For connection to high impedance consumers ex PLC a protective circuit is not needed Installation un...

Страница 47: ...el n Qualified personnel Tools n Flat bladed screwdriver 1 Adjust the flow to be monitored and read it off at the scale on the device The top edge of the float is the read off point Fig 33 Loosen set screws 2 Loosen the set screws of the switch contact Fig 33 1 using a flat bladed screwdriver 3 Slowly push the switch contact in the opposite direction of flow up to the stop Operation Setting the sw...

Страница 48: ...Ä Chapter 11 1 Tightening torque of screws on page 84 ð The set switch point corre sponds to the switch off point of the switch contact by decreasing flow Setting the switch point of a non installed device Fig 34 Loosen set screws 1 Loosen the set screws of the switch contact Fig 34 1 using a flat bladed screwdriver 2 Using a non magnetic rod e g test rod move the float to the point on the measuri...

Страница 49: ...itch contact Fig 34 1 using a flat bladed screwdriver When doing so observe the correct tightening torque of the screws Ä Chapter 11 1 Tightening torque of screws on page 84 ð The set switch point corre sponds to the switch off point of the switch contact by decreasing flow 6 2 Checking the flow Reading off the flow value Personnel n Qualified personnel Protective equipment n Goggles Fig 35 Readin...

Страница 50: ...cu racy read off at eye level Fig 35 middle arrow The read off value can be falsified by viewing at an angle 3 Read off the flow value from the measuring scale Operation Checking the flow 03 09 2018 DWG Module BASICS Flow Monitor 50 ...

Страница 51: ...epair of malfunction Work performed incorrectly may result in severe injury and con siderable damage to property Ensure that the site is suffi ciently cleared before com mencing work Ensure that the repair loca tion is orderly and clean Components and tools that are lying about or on top of each other are potential causes of accidents If components have been removed observe correct assembly proced...

Страница 52: ...f malfunctions that present an immediate danger to persons or valuables proceed according to the valid emer gency plans for the system 2 Determine the cause of the mal function 3 Before repair ensure that there is no danger to persons from escaping media 4 If necessary allow the pipeline and device to cool down or to warm up before commencing work 5 Malfunctions must be corrected by qualified pers...

Страница 53: ...iameter is too small n Correct pipe diameter Qualified personnel Float is stuck n Disassemble and clean the device Qualified personnel Switch contact is defective n Remedy the cause of the defect short cir cuit overload n Replace the switch contact Qualified personnel Switch contact is permanently switched Flow is too high or the switch contact is set too low n Reduce the flow n Adjust the switch ...

Страница 54: ...Improper scale installed for media used n Request proper con version table or scale for media used Qualified personnel Incorrect reduc tion fitting or pipe diameter is too small n Correct pipe diameter Qualified personnel Device is dirty n Disassemble and clean the device Qualified personnel Device is defec tive n Remove device from system and contact the manufacturer Qualified personnel Troublesh...

Страница 55: ...ribed tightening torque for the screws see Chapter 11 1 Before placing the device back into operation ensure that all work has been per formed and completed in compliance with the specifi cations and instructions in these Operating Instruc tions 8 2 Maintenance plan Intervals for replacing wear parts DWG type flow monitors require very little maintenance due to the small number of moving parts The...

Страница 56: ...moving the device Depressurize the system before removing the device WARNING Risk of injury from hot or cold surfaces Pipelines can heat up cool down dramatically due to the media flowing through them Skin contact with hot or cold surfaces causes severe skin burn or frostbite Before removing the device ensure that the machine or system and the flow monitor have been controlled to a temperature ran...

Страница 57: ... idue in the device After the pipe system has been emptied media residue can still be present inside the device In the case of toxic or hazardous media this could result in serious injury When removing deinstal ling the device from the pipe system always wear personal protective equip ment All requirements specified in the media safety data sheet must be observed in accomplishing the work task Res...

Страница 58: ...the other end of the device 8 4 Disassembly To replace wear parts or to clean the device the flow monitor must first be disassembled WARNING Risk of injury due to incorrect disassembly The device may still contain media residue Wear personal protective equipment when working with hazardous media Improper disassembly may cause serious injuries if hazardous media is still present inside the device C...

Страница 59: ...e equipment n Goggles n Protective gloves Tools n Hex screwdriver Special tools n Alignment tool Test rod Fig 36 Loosen screws 1 Loosen the top 3 hex head screws Fig 36 1 using a hex screwdriver Fig 37 Remove the process connec tion outlet 2 CAUTION Carefully pull the process connection outlet from the device housing turning slightly when doing so Fig 37 Do not apply undue force The sight glass ca...

Страница 60: ... buffer O ring 3 Remove the slot nozzle buffer O ring Fig 38 1 from the sight glass Fig 39 Loosen screws 4 Loosen the lower 3 hex head screws Fig 39 1 Maintenance Disassembly 03 09 2018 DWG Module BASICS Flow Monitor 60 ...

Страница 61: ...ocess con nection inlet 7 Slightly tilt the sight glass with slot nozzle and remove the float Fig 41 Remove slot nozzle 8 Using the alignment tool push the slot nozzle out of the sight glass until it can be pulled out by hand Fig 41 9 If necessary remove the O rings from the individual parts O ring replacement It is recommended that the O rings be replaced during main tenance 8 5 Maintenance Maint...

Страница 62: ... be observed when handling or otherwise using this medium Residue of hazardous media inside the device can cause serious injury CAUTION Risk of injury due to dam aged parts If parts of the device are broken or damaged they may cause injury due to sharp edges or splinters during the cleaning process Damaged parts must be replaced Carefully clean the parts of the device so as not to cause damage thi...

Страница 63: ...ust be reassembled after cleaning the individual compo nents Personnel n Qualified personnel Tools n Hex screwdriver n Torque screwdriver and assorted blades Special tools n Alignment tool Test rod Fig 42 O ring seal 1 Carefully install the O ring seal onto the process connection Fig 42 so that it rests in the upper O ring groove of the process connection Fig 44 When doing so be careful not to ove...

Страница 64: ...ing so be careful not to overstretch the O ring Fig 44 Position of O rings 3 Repeat steps 1 and 2 for the second process connection Fig 45 O ring centering the slot nozzle 4 Place the O ring for centering the slot nozzle onto the slot nozzle Fig 45 1 so that it sits in the groove on the outlet side of the slot nozzle Maintenance Maintenance Assembly 03 09 2018 DWG Module BASICS Flow Monitor 64 ...

Страница 65: ... trudes from the sight glass Fig 46 1 2 Fig 47 Centering the slot nozzle 6 Place the lower O ring which centers the slot nozzle onto the end of the slot nozzle Fig 47 1 7 Using the alignment tool center the slot nozzle on the scale in the sight glass Maintenance Maintenance Assembly 03 09 2018 DWG Module BASICS Flow Monitor 65 ...

Страница 66: ...htly A list of suitable lubri cants is contained in the annex Ä Chapter 11 5 Lubricants on page 87 Fig 49 Process connection Inlet 10 CAUTION Carefully insert the process connection Inlet Fig 49 1 into the sight glass pressing lightly The sight glass can break if too much force is exerted or if the process connection is canted Maintenance Maintenance Assembly 03 09 2018 DWG Module BASICS Flow Moni...

Страница 67: ...nsert the process connection inlet with the inner section into the device housing Fig 51 and axially align the connection to the housing The locating pin hole in the process connection must be centered to the front locking screw of the device housing Fig 52 Secure the process connec tion inlet 13 Secure the inlet process con nection with 3 hex socket screws Fig 52 1 to the device housing observing...

Страница 68: ... and the measuring scale Fig 53 2 centered to the sight window of the device housing Secure the sight glass against turning when doing so Fig 54 O ring slot nozzle buffer 16 Insert O ring slot nozzle buffer Fig 54 1 Maintenance Maintenance Assembly 03 09 2018 DWG Module BASICS Flow Monitor 68 ...

Страница 69: ...n doing so ensure that the spanner flats are at an angle of 90 to the sight window of the device housing Fig 56 Tighten hex socket screws 18 Tighten the 3 hex socket screws Fig 56 1 observing the proper torque Ä Chapter 11 1 Tight ening torque of screws on page 84 Maintenance Maintenance Assembly 03 09 2018 DWG Module BASICS Flow Monitor 69 ...

Страница 70: ...t is still sluggish after having been cleaned several times contact the manufac turer 8 5 4 Switch contact replacement Tools n Flat bladed screwdriver Fig 58 Loosen female socket 1 Loosen the fixing screw Fig 58 1 of the female socket with a flat bladed screwdriver Fig 59 Remove the female socket 2 Remove the female socket and gasket Fig 59 1 by pulling upwards Maintenance Maintenance Switch conta...

Страница 71: ...l to the side 5 Rotate guide rail with switch contact to the side Fig 63 Remove switch contact 6 Remove the switch contact from the guide rail Fig 63 7 Attach a new switch contact 8 Rotate the guide rail back onto the device 9 Fasten the guide rail Fig 61 1 10 Adjust the required switching point by moving the switch con tact to the desired position Maintenance Maintenance Switch contact replacemen...

Страница 72: ...after mainte nance work Take the following steps after comple tion of maintenance work and before switching on the device 1 Check all previously loosened released screw connections for tightness Ä Chapter 11 1 Tightening torque of screws on page 84 2 Clean the work area and remove all residual materials packaging substances or spills Maintenance Measures to be taken after maintenance work 03 09 20...

Страница 73: ...hat are lying about or on top of each other are potential causes for accidents Disassemble components professionally Secure components so that they do not fall or overturn If in doubt contact the manufacturer 9 2 Disassembly Before disassembly n Remove fluids and lubricants and all other packaging material and dispose of them in an environmen tally safe manner Personnel n Qualified personnel Prote...

Страница 74: ...sassembled components n Scrap metals n Recycle plastic elements n Dispose of the remaining compo nents according to their material properties NOTICE Danger to the environment due to incorrect disposal Potential risk to the environ ment may arise due to incorrect disposal Have electrical scrap elec tronic components lubri cants and other supplies disposed of by approved specialists In case of doubt...

Страница 75: ...ioning arrow for cut off point 10 2 1 Switch contact data plate for UL Recognized switch contacts Fig 67 Switch contact data plate Fig 68 Adhesive label switch contact with positioning arrow The data plate is on the switch contact and may provide the following informa tion n Type of current AC or DC n Maximum voltage n Maximum current n Maximum power n Frequency For UL Recognized switch contacts S...

Страница 76: ...10 3 Dimension sheet Technical data Dimension sheet 03 09 2018 DWG Module BASICS Flow Monitor 76 ...

Страница 77: ...15 1 2 15 32 121 135 14 DWG 8 1 4 8 32 121 132 10 3 8 10 32 121 135 15 1 2 15 32 121 135 14 DWG 12 1 4 8 32 121 132 10 3 8 10 32 121 135 15 1 2 15 32 121 135 14 DWG 18 1 2 15 32 143 161 14 3 4 20 32 143 166 15 DWG 35 3 4 20 41 143 163 15 1 25 41 143 181 17 DWG 50 3 4 20 41 143 163 15 1 25 41 143 181 17 Technical data General specifications 03 09 2018 DWG Module BASICS Flow Monitor 77 ...

Страница 78: ...a 96 800 1 2 35 43 ca 96 800 DWG 12 1 4 35 43 ca 96 800 3 8 35 43 ca 96 800 1 2 35 43 ca 96 800 DWG 18 1 2 35 43 ca 96 800 3 4 35 43 ca 96 960 DWG 35 3 4 45 50 ca 104 1450 1 45 50 ca 104 1450 DWG 50 3 4 45 50 ca 104 1450 1 45 50 ca 104 1450 NPT threads are available on request The weight of the connection cable at a length of 2m is approx 80 g Technical data General specifications 03 09 2018 DWG M...

Страница 79: ...inimum load 3 VA Normally Open contact NOC Data Value Unit Voltage 250 V Current maximum 3 A Power maximum 100 VA Change Over Contact COC M12x1 20 C 85 C Data Value Unit Voltage 250 V Current maximum 1 5 A Power maximum 50 VA Minimum load 3 VA Technical data Electrical specifications 03 09 2018 DWG Module BASICS Flow Monitor 79 ...

Страница 80: ...urrent maximum 1 A Power maximum 60 VA 10 5 1 Electrical specifications for UL Recognized devices Change Over Contact COC Data Value Unit Voltage 240 V AC DC Current maximum 1 5 A Power maximum 50 VA Minimum load 3 VA Frequency 50 60 Hz Technical data Electrical specifications Electrical specifications for UL Recognized devices 03 09 2018 DWG Module BASICS Flow Monitor 80 ...

Страница 81: ...ch range for H2O at 20 C l min gph gpm DWG 1 5 0 1 1 5 1 6 23 8 DWG 3 0 2 3 3 2 47 5 DWG 8 0 3 8 5 0 127 0 DWG 12 1 12 16 0 190 0 DWG 18 2 18 32 0 285 0 DWG 35 3 35 48 0 550 0 DWG 50 4 50 60 0 790 0 The specified data are switch off points Other switch ranges are available on request Technical data Measuring ranges Standard measuring ranges 03 09 2018 DWG Module BASICS Flow Monitor 81 ...

Страница 82: ...media temp for UL Recognized Compo nents 15 C Operating conditions for UL Recognized Components Description Value Unit Indoor use Altitude Up to 2 000 m Temperature 15 to 100 C Max relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C Mains supply voltage fluctuations Up to 10 voltage Overvoltage category II Pollution degree 2 Technical data Operating...

Страница 83: ...not freeze Operating data for devices employed in explosion hazard zones differs from the above and are specified in the Oper ating Instructions for DWG Module ATEX Chapter 4 Technical data Operating data 03 09 2018 DWG Module BASICS Flow Monitor 83 ...

Страница 84: ...e Qty Device housing screw Hexagon socket screw M6x6 3 Nm 6 Guide rail screw Countersunk screw M3x10 0 4 Nm 4 Switch contact housing assembly screw Cylinder head screw with slot M3x10 0 4 Nm 2 11 2 Replacement parts Annex Replacement parts 03 09 2018 DWG Module BASICS Flow Monitor 84 ...

Страница 85: ...y vary depending on the model Fig 69 Replacement parts drawing Ite m Qty Description 1 1 Process connection inlet 2 2 O ring glass buffer 3 2 O ring seal 4 1 Sight glass 5 1 Device body 6 6 Hex socket set screw 7 2 O ring slot nozzle buffer 8 1 Pin slot nozzle outlet Annex Replacement parts 03 09 2018 DWG Module BASICS Flow Monitor 85 ...

Страница 86: ... n Fixed spanner 32 41 mm n Hex screwdriver 3 mm n Flat bladed screwdriver blade width 5 5 mm n Torque screwdriver and assorted blades Special tools n Alignment tool test rod DWG 11 4 Sealant Before using a sealant ensure that it is compatible with the media used and that it can be employed under the given oper ating conditions n Ensure proper seal n Use a suitable sealant Liquid sealants will dam...

Страница 87: ... may be purchased from the manufacturer The following lubricants are suitable to facilitate installing the O rings Lubricant O ring material NBR EPDM FKM Glycerine suitable suitable suitable Soapy water suitable suitable suitable NOTICE Glycerine must not be used if the device is used for sulfuric acid and or nitric acid Annex Lubricants 03 09 2018 DWG Module BASICS Flow Monitor 87 ...

Страница 88: ... Dimension sheet 76 Disassembly Disposal 73 Maintenance 58 Disposal 74 E Electrical connection 38 Electrical specifications UL Recognized 80 Environmental protection 20 cleaning fluids 20 lubricants 21 F Fault table 53 G General safety 11 H Hazard electrical current 15 Hazards mechanical 15 media 17 radiation 17 temperature 16 I Initial startup 37 Installation Pipeline 33 Preparations 29 Sealing 3...

Страница 89: ...fety equipment 18 19 Safety instructions transport 25 Sealant 86 Service 10 Sight glass 24 Special tools 86 Storage 26 Strainer 32 Switch contact 24 replacement 70 Switch contact data plate UL Recognized 75 Switch contact rating plate 75 Switch point 47 setting 47 Symbols packaging 26 Symbols used in the instructions 11 T Technical data General specifications 77 Tightening torque 84 Tools 86 Trans...

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