Ashcroft LS ATEX Series Installation And Maintenance Instruction Manual Download Page 22 | Manualshive

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Summary of Contents for LS ATEX Series

Page 1: ... LS ATEX EN Rev D 04 2021 1 of 22 095I403 02EN Installation and Maintenance Instruction Manual Level Switch Model LS for explosion risk areas pursuant to Directive 2014 34 EU ATEX In the versions LS ATEX ...

Page 2: ...ameproof enclosure execution Ex d 8 3 4 Special operating conditions for safe use in potentially explosive atmospheres 9 4 Technical data 10 4 1 Reed contacts 10 4 2 Electrical Wiring 10 5 Marking of the device 12 5 1 Labeling 12 6 Structure and function 13 6 1 Overview 13 6 2 Functional description 14 6 3 Description of the components 14 7 Transportation 14 7 1 Delivery 14 7 2 Storage 14 8 Assemb...

Page 3: ...Page 3 of 22 11 Dismantling disposal 17 11 1 Disassembly 17 11 2 Disposal 18 12 Appendix 18 12 1 Data Sheet Level Switch 18 12 2 Declaration of conformity for Level Switch 19 ...

Page 4: ...ich may cause health and safety hazards to people in particular to workers and possibly to domestic and farm animals as well as property 1 2 Symbols Warning indicates a potentially hazardous situation the non observance of which may cause hazards to the health and safety of people especially workers and possibly to domestic and farm animals as well as property Information highlights important info...

Page 5: ... are to be provided by the operator the respective qualified personnel for installation maintenance and operation Risks from electrical energy and from the released energy of the medium from escaping media and from improper connection of the device must be eliminated The details for this are to be found in the corresponding applicable set of regulations such as DIN EN UVV accident prevention regul...

Page 6: ...on on Registration Evaluation Authorization and Restriction of Chemicals REACH 2006 1907 EC must be observed the corresponding safety data sheets of the manufacturers of the chemicals are available for download on our website At the end of the product life cycle we recommend to recycle the devices as they are mostly made of stainless steel Instructions for disassembly material separation and dispo...

Page 7: ...ive gas atmospheres excluding mine gas and or dust from hazardous mining operations 1G Equipment group for gases and vapors in which an explosive atmosphere may occur continuously during normal operation Ex ia Marking according to the equipment protection level for electrical equipment in potentially explosive atmospheres intrinsic safety IIB Suitable for gas atmosphere IIB IIC Suitable for gas at...

Page 8: ...o be considered Li 4 μH and Ci 20 pF Power supply parameters Ui 30 V and Ii 160 mA 3 3 Flameproof enclosure execution Ex d When process temperatures for Ex d are elevated see below maximum temperature reachable on LS stem slide bar Model EPL Ambient Temperature MAX Process Temperature Temperature Class Level Switch LS d 60 C 80 C 80 C T6 d 60 C 70 C 150 C T6 ...

Page 9: ... level for gases containing all potential ignition sources that are effective which may occur during normal operation in expected malfunctions Db Equipment protection level for dusts containing all potential ignition sources that are effective which can occur during normal operation in expected malfunctions X Special conditions of use must be observed 3 4 Special operating conditions for safe use ...

Page 10: ...2 5 3 1 0 2 48 0 8 1 25 2 5 1 0 1 110 0 3 0 5 1 0 5 0 05 230 0 15 0 25 0 5 0 25 Note 1 The electric charge to the level switch should not exceed the electric tension and current load values indicated on the table Note 2 In case of power charge piloting it is necessary to use auxiliary relays or snubbers suppressors 4 2 Electrical Wiring The wiring of the ASHCROFT Level Switches is available in var...

Page 11: ...llow For separate wiring in SPDT form exceeding one switch point the white colour wire is always the common wire 4 2 1 2 Common wiring Each contact is fed by one wire common for all contacts Common wiring Single contact SPST Cable colour White COM Brown Orange Black Red Blue Yellow Common wiring Double Contact SPDT Cable colour White COM Grey Green Orange Brown Black Blue Red Yellow For common wir...

Page 12: ... certificate of approval number and manufacturer alternative with limited space type designation order number and item number The marking for the hazardous areas in the form of the description of the type of protection the permissible ambient temperature and the deposit number are located in the lower area of the nameplate 5 1 Labeling Execution Label Standard housing Non ATEX LS S LS B LS A LS IB...

Page 13: ...BC cable LS IBP cable gland LS IBN DIN connector LS IAC cable LS IAP cable gland LS IAN DIN connector 6 Structure and function 6 1 Overview 1 Process connection 2 Stem Slide bar 3 Float 4 Top level ring stop Seeger ring 5 Low level ring stop Seeger ring 1 2 3 4 5 ...

Page 14: ...aled and filled with an inert gas See table maximum current see chap 4 1 The standard condition if normally open or normally closed of the Reed contact is specified by the customer 6 3 2 Float The floats are swimming on top of the fluid and contain a magnet which allows to open or close the Reed contact circuit 6 3 3 Stem Slide bar Inside the slide bar the reed contacts are wired and secured again...

Page 15: ...ork the system must be secured against being switched on again It is recommended to perform the assembly installation without an existing explosive atmosphere e g ventilated room 8 2 Requirements for the installation site Check the suitability of the device for the process media to be controlled Protection against any kind of mechanical vibration The level switch must be mounted in a top vertical ...

Page 16: ... or by the ground symbol ATEX approved switches have an external ground screw that must be connected 8 5 Starting up A prerequisite for starting up is the proper installation of all measuring and control lines All connection must be laid in such a way that no mechanical forces can act on the device Before starting up the tightness of the pressure connection must be checked 8 6 Subsequent relocatio...

Page 17: ... Wrong wiring 4 Missing or shifted SEEGER ring 1 Replacement of the level switch unit 2 Clean the slide bar stem and floats with a soft cloth 3 Check wiring according to the manual 4 Send for repair to ASHCROFT Corrosion at slide bar stem and float Incompatible process media Replace level switch with compatible materials Bended slide bar stem Incorrect handling or mounting Send for repair to ASHCR...

Page 18: ...Copper cables Plastic or rubber floats plugs Please help to protect our environment Some of the product materials can be reused if you take the product to a collection point or to a waste management company By reusing some parts or raw materials from used products you make an important contribution to protecting the environment Our products are delivered in optimized packaging This essentially mea...

Page 19: ...Page 19 of 22 12 2 Declaration of conformity for Level Switch for Ex ia ...

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Page 21: ...Page 21 of 22 12 3 Declaration of conformity for Level Switch for Ex d ...

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