UWT Capanivo CN 4000 Series Technical Information/Instruction Manual Download Page 20

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Level limit switch

Series CN 4000

Technical Information / Instruction manual

page

Notes for use in Hazardous Locations

Zone classification

General Notes

Marking

Devices with Ex approval are marked on the name plate.

Process pressure

The device construction allows process over-pressure upto 6/ 16 bar (87/ 232 psi) (see name

plate). These pressures are allowed for test purposes. The definition of the ATEX/ IEC-Ex is only

valid for a container-over-pressure between -0.2 .. +0.1 bar (-2.9 .. +1.45 psi). For higher or lower
pressures the approval is not valid.

Process and ambient

temperature

The permitted temperature ranges are marked on the name plate. Observe derating curves.

Permitted zones (categories) for mounting in partition wall

EPL (IEC-Ex)

Category (ATEX)

Zone

EPL (IEC-Ex)

Category (ATEX)

Zone

Max. Surface Temperature

The temperature marking on the name plate refers to the instruction manual. On the following tables the relevant
temperature ratings are shown. The maximum surface temperature is the hottest temperature of the unit which could occur during

malfunction (according to Ex-definition).

Max.

ambient

temperature*

Max. process
temperature*

Max. surface

temperature

60°C (140°F)

CN 4020: 120°C (248°F)
CN 4030: 110°C (230°F)

120°C (248°F)

CN 4050: 80°C (176°F) 135°C (275°F)

Version CN 4020 120°C/ CN 4030/ CN 4050:

Usable in

zone

ATEX

category

IEC-Ex

Equipement Protection

Level (EPL)

Dust applications 20, 21, 22

1 D

* in case of conductive dust
additional demands for the
installation are possible.

21, 22

2 D

3 D*

Ambient

Process

Max.

ambient

temperature

Max. process

temperature

Max. surface

temperature

60°C (140°F)

120°C (248°F)
130°C (266°F)
140°C (284°F)
150°C (302°F)
160°C (320°F)
170°C (338°F)
180°C (356°F)

Version CN 4020 180°C:

* Observe derating (see page 7)

Capanivo

CN 4000

gi011217

Summary of Contents for Capanivo CN 4000 Series

Page 1: ...essories 10 Mounting 11 Electrical installation 13 Settings 17 Signal output logic 18 Maintenance 19 Notes for use in Hazardous Locations 20 Disposal 21 Subject to technical change We assume no liability for typing errors All dimensions in mm inch Different variations than specified are possible Please contact our technical consultants Capanivo 1 2 3 4 5 6 7 8 9 10 11 12 CN 4000 gi011217 1 ...

Page 2: ...lier for address see www uwt de Otherwise you can contact UWT GmbH Tel 0049 0 831 57123 0 Westendstr 5 Fax 0049 0 831 76879 D 87488 Betzigau info uwt de Germany www uwt de WARNING Relates to a caution symbol on the product A failure to observe the necessary precautions can result in death serious injury and or considerable material damage WARNING Relates to a caution symbol on the product Risk of ...

Page 3: ...ue to the active shield technology it has an increased insensitivity to material buildup on the probe The measurement is nearly independent from the influence of the silo wall Therefore factory provided precalibration allows measurement of most applications without calibration on site The unit is normally screwed into the lateral container wall so that it is level with the filling height to be reg...

Page 4: ...ormation Instruction manual page Technical data Dimensions Housing versions CN 4020 CN 4030 CN 4050 Plastics Aluminium CN 4030 CN 4050 Version 120 C Version 180 C L 190 mm Version 180 C L 400 mm Capanivo 1 2 3 4 5 6 7 8 9 10 11 12 CN 4000 gi011217 4 ...

Page 5: ... DC 10 incl 10 of EN 61010 21 230 V AC 50 60 Hz 21 45 V DC 10 incl 10 of EN 61010 20 40 V DC 10 incl 10 of EN 61010 Max ripple of power supply 7 Vss 7 Vss at DC 7 Vss Installed load max 1 5 W max 18 VA 2 W max 0 5 A Signal output Floating relay SPDT AC max 250 V 3 A non inductive DC max 30 V 5 A non inductive Floating relay DPDT AC max 250 V 8 A non inductive DC max 30 V 5 A non inductive Open Col...

Page 6: ...BT glass fibre reinforced 1 FDA listed 2 Thread G 1 CN 4050 Material process connection Aluminium or 1 4305 SS303 Material extension cable PE with black carbon Material probe Plastics PPS PBT glass fibre reinforced 1 Thread G 1 Flat gasket included Material AFM30 1 Discolouration is possible due to influence of UV and temperature This has no negative effect to the material properties 2 Food grade ...

Page 7: ...000 Technical Information Instruction manual page Technical data Ambient and process temperature CN 4020 version 120 C Operating conditions CN 4020 version 180 C CN 4030 CN 4050 Capanivo 1 2 3 4 5 6 7 8 9 10 11 12 CN 4000 gi011217 7 ...

Page 8: ... the probe is covered a few cm Relative Humidity 0 100 suitable for outdoor use Altitude max 2 000 m 6 562 ft Expected product lifetime Following parameters have a negative influence on the expected product lifetime High ambient and process temperature corrosive environment high vibration high flow rate of abrassive bulk material passing the sensor element max 200 Nm max 1 200 N at 40 C max 1 200 ...

Page 9: ...EU Food grade material According to directive 1935 2004 EC Pressure Equipment Directive 2014 68 EU The units are not subject to this directive because they are classified as pressure keeping equipment and do not have a pressurized housing see Art 1 Abs 2 1 4 The units are designed and manufactured in accordance to the Pressure Equipment Directive The unit is NOT intended for use as an equipment pa...

Page 10: ...ring and temperature stable For use in Hazardous Locations only permitted for Zone 22 Hexagon nut For mounting on a wall without a socket Material Aluminium or 1 4305 303 Sliding sleeve CN 4030 G 1 ISO 228 Material 1 4305 303 Sealing material to the extension tube FKM Bulb Bright indicating light seen from outside Not available for use in Hazardous Locations Plug Used instead of cable gland Valve ...

Page 11: ...he unit Food grade material The materials are available for the use under nornal and predictable applications according to directive 1935 2004 Art 3 Other conditions can influence the safety Mounting instructions Direction of the cable glands When the unit is mounted from the side ensure that the cable glands face downwards and are closed to avoid water penetration into the housing The housing can...

Page 12: ...ncline mounting helps remaining material to fall off more easily Protective angle recommended depending on load and abrasion of the material CAUTION Observe General distances of the probe see page 11 Distance to material flow filling Max permitted mechanical load see page 8 Wearing due to abrasive bulk material A Full demand or empty detector vertical CAUTION Observe General distances of the probe...

Page 13: ...fications Ingress protection IP66 temperature range from 40 C to 70 C UL or VDE certified depending on the country where the unit is installed pull relief Make sure that the screwed cable gland safely seals the cable and that it is tight danger of water intrusion Cable glands that are not used have to be locked with a closing element Field wiring cables The diameter has to match to the clamping ra...

Page 14: ... wiring cable must match to the clamping range of the cable clamp If other than the factory provided parts are used following must be ensured The parts must have an approval adequate to the approval of the level sensor certificate and type of protection The approved temperature range must be from the min ambient temperature of the level sensor to the max ambient temperature of the level sensor inc...

Page 15: ...put Relay SPDT PNP 3 wire Power supply 20 40 V DC 10 0 5 A incl 10 of EN 61010 Fuse max 4 A fast or slow 250V HBC Signal output max 0 4 A Load for example PLC relay contactor bulb PE Load Power supply Relay DPDT Universal voltage Power supply 21 230 V 50 60 Hz 10 18 VA 21 45 V DC 10 2 W incl 10 of EN 61010 Fuse on power supply max 10 A fast or slow HBC 250 V Signal output Floating relay DPDT AC ma...

Page 16: ...al process connection Do not use teflon tape Use flat gasket Metal bin grounded CAUTION This grounding alone is not enough for Ex applications CN 4020 version 120 C CN 4020 version 180 C CN 4030 CN 4050 Metal socket Grounding through grounding terminal and cable Metal bin grounded For non metal bins grounded parts close to the bin e g metal fixing elements of the bin Internal terminal is connected...

Page 17: ...ntrol elements Relay DPDT Universal voltage PNP 3 wire LED Signal output FSH FSL setting Factory setting Factory setting Factory setting 0 5 sec Signal output delay Delay works in one or both directions as shown by the arrows below Factory setting 0 5 sec Sensitivity setting Range DK I 1 6 II 2 0 Factory setting III 3 0 IV 4 0 Sensitivity setting Range DK I 1 6 II 2 0 Factory setting III 3 0 IV 4 ...

Page 18: ...ge I Max sensitivity for low DK value 1 6 Low Range II Standard setting for most applications 2 0 Medium Range III Low sensitivity for high material buildup on the probe 3 0 High Range IV Min sensitivity for very high material buildup on the probe 4 0 Very high FSH Set in case of using the sensor as a full detector Power failure or line break is regarded as full signal protection against overcharg...

Page 19: ...rocess connection cable glands and enclosure lid Properly connected external PE cable if present Cleaning If cleaning is required by the application following must be observed Cleaning agent must comply with the materials of the unit chemical resistance Mainly the lid sealing cable gland and the surface of the unit must be considered The cleaning process must be done in a way that The cleaning age...

Page 20: ...ng on the name plate refers to the instruction manual On the following tables the relevant temperature ratings are shown The maximum surface temperature is the hottest temperature of the unit which could occur during malfunction according to Ex definition Max ambient temperature Max process temperature Max surface temperature 60 C 140 F CN 4020 120 C 248 F CN 4030 110 C 230 F 120 C 248 F CN 4050 8...

Page 21: ...can be recycled details of the used materials see chapter Technical data mechanical data Recycling must be done by a specialised recycling company Since the product is not subject to the WEEE directive 2002 96 EG it is not permitted to bring it to a public recycling station Capanivo 1 2 3 4 5 6 7 8 9 10 11 12 CN 4000 gi011217 21 ...

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