Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Conductive Level Switches for Industrial Process Control

214 views

Published on

When the electrodes of the conductive point level sensor come into contact with a conductive fluid, a small alternating current begins to flow.
The electronics then triggers a switching command. Conductive point level sensors are used in all areas of industrial instrumentation, e.g. as overflow protection, pump control or dry run protection.

Published in: Engineering
  • Be the first to comment

  • Be the first to like this

Conductive Level Switches for Industrial Process Control

  1. 1. 143 Conductive 144 Overview Conductive 148 VEGAKON series 60 152 EL 1 … EL8 162 Level switches VEGATOR
  2. 2. 144 Area of application The conductive point level sensors of the VEGAKON series are used in conductive liquids as overfill protection, pump control or dry run protection in vessels and pipelines. Measuring principle When the electrodes of the sensor come in contact with a conductive liquid, a small alternating current begins to flow. The electronics responds by triggering a switching command. Advantages The simple, robust mechanical construction of the sensors ensures maintenance-free, cost-effective and reliable point level detection in all areas of industrial instrumentation. The sensors, which can be installed in any po- sition, provide a direct switching output. All measuring instruments offer teh possibility of detection serveral switching points in a vessel. The VEGAKON sensors are designed as compact level switches, while the EL probes are designed to be used in combination with signal conditioning instruments of the VEGATOR series. Overview Conductive
  3. 3. 145 VEGAKON 61 VEGAKON 66 Application Conductive liquids Conductive liquids Version Compact level switch with front-flush partly insulated electrode and one switching point of 316L, PTFE Compact level switch with partly insulated rod electrodes and max. two switching points of PPN Probe length – 0.12 … 4 m Process fitting Thread G1, 1 NPT, cone DN 25 Thread G1½ Process temperature -40 … +150 °C -40 … +100 °C Process pressure -1 … +25 bar (-100 … +2500 kPa) -1 … +6 bar (-100 … +600 kPa) Signal output Relay, transistor output Relay, transistor output Approvals – –
  4. 4. 146 EL 1 EL 3 EL 4 Application Conductive liquids Conductive liquids Conductive liquids Probe length up to 4 m up to 6 m up to 4 m Version Partly insulated rod with one switching point of 316Ti, PTFE Partly insulated rod with max. four switching points of 316Ti, PTFE Partly insulated rod with max. four switching points of 316Ti, PP Process fitting Thread G½ Thread G1½ Thread G1½ Process temperature -50 … +130 °C -50 … +130 °C -20 … +100 °C Process pressure -1 … +63 bar (-100 … +6300 kPa) -1 … +63 bar (-100 … +6300 kPa) -1 … +6 bar (-100 … +600 kPa) Signal output VEGATOR 256C, VEGATOR 632 VEGATOR 256C, VEGATOR 632 VEGATOR 256C, VEGATOR 632 Approvals ATEX, Overfill protection ATEX, Overfill protection –
  5. 5. 147 EL 6 EL 8 Conductive liquids Conductive liquids up to 50 m up to 3 m Partly insulated cable with max. four switching points of 316Ti, PP/FEP Partly insulated rod with one swit- ching point of 316Ti, PE Thread G1½ Thread G½ -20 … +100 °C -10 … +60 °C -1 … +6 bar (-100 … +600 kPa) -1 … +6 bar (-100 … +600 kPa) VEGATOR 256C, VEGATOR 632 VEGATOR 256C, VEGATOR 632 – –
  6. 6. 148 1 2 G1 SW 41 mm (1.61") 80 mm x 110 mm (3.15" x 4.33") ~30 mm (1.18") 75mm (2.95") 52mm (2.05") 10mm (0.39") 21mm (0.83") 28mm (1.1") M20x1,5 ① Threaded version ② Cone version Delivery time: VEGAKON 61 Conductive limit switch for liquids for front-flush mounting Application area The VEGAKON 61 is a condcutive limit switch for conductive liquids. The instrument is best suited as full and empty detector in pipelines. Your benefit − Time and cost-saving setup without adjustment with medium − Optimum cleanability through front-flush mounting − Maintenance-free operation through probe insensitive to buildup Technical data Version: compact limit switch Process fitting: thread G1, 1 NPT cone DN 25 Materials: 316L, PTFE Process temperature: -40 … +150 °C Process pressure: -1 … +25 bar (-100 … +2500 kPa) Approval .X without ..................................................................................................................................................................................... Process fitting G1 Thread G1 PN25, DIN3852-A ........................................................................................................................................ K1 Cone DN25 PN25 ........................................................................................................................................................... Electronics R Relay (DPDT) 20...72V DC / 20...250V AC (3A) ...................................................................................................... T Transistor (NPN/PNP) 10...55V DC ......................................................................................................................... Process temperature X -40...+100°C ....................................................................................................................................................... Z -40...+150°C (with temperature adapter) ............................................................................................................ KON61
  7. 7. 149 Rd 52 x 1/6 25mm (0.98") 23mm (0.91") ø 80 mm (3.15") 24mm (0.95") 21mm (0.83") ø 60 mm (2.36") ø 47 mm (1.85") ø 40 mm (1.58") 1 2 3 ① Thread G1 suitable for foodstuffs ② Thread G1 ③ Cone DN 25 Delivery time: Welded socket for VEGAKON 61 suitable for 1 VEGAKON 61 ............................................................................................................................................................................ Version / Material GA Thread G1, DIN3852-A / 316Ti ........................................................................................................................................ GL Thread G1, DIN3852-A; suitable for foodstuffs / 316Ti .................................................................................................... KA Conus DN25 / 316L .......................................................................................................................................................... Test certificate X without ........................................................................................................................................................................ A (H) 2.2-Factory certification for material (EN 10204) ................................................................................................. B (C) 3.1-Inspection certificate for material (EN 10204) ............................................................................................... ESTKN.
  8. 8. 150 SW 60 mm (1.61") G1 ½ 90mm (3.54") 20mm (0.79") 85 mm (3.35") ~ 76 mm (2.99") 24mm (0.95") L2 L3 L1 Lmin. = 120 mm Lmax. = 4.000 mm ø 4 mm (0.16") 92,5mm (3.64") Delivery time: VEGAKON 66 Conductive multiple rod limit switch for liquids Application area The VEGAKON 66 is a conductive limit switch for conductive liquids. The instrument is suitable as full or empty detector in pipelines. Your benefit − Reliable pump control through multiple rod probe − High flexibility through shortenable rod probes − Reduced stock-keeping through exchangeable rod probes Technical data Version: compact limit switch Probe length: up to 4 m Process fitting: thread G1½ Material: PPN Process temperature: -40 … +100 °C Process pressure: -1 … +6 bar (-100 … +600 kPa)
  9. 9. 151 Approval .X without .................................................................................................................................................................................... Process fitting / Material G Thread G1½, DIN3852-A / PPN ...................................................................................................................................... Number of rod electrodes 2 2 rod electrodes ......................................................................................................................................................... 3 3 rod electrodes ......................................................................................................................................................... X without ....................................................................................................................................................................... Material rod electrodes V 316Ti ................................................................................................................................................................... Housing / Protection P Plastic / IP66 ................................................................................................................................................ M Aluminium plastic-coated / IP66/IP67 .......................................................................................................... Electronics R Relay (DPDT) 20...72V DC/20...250V AC (5A) ...................................................................................... T Transistor (NPN/PNP) 10...55V DC ....................................................................................................... KON66 Rod length L1 in mm (longest electrode) 316Ti (120-4000 mm) per 500 mm Rod length L2 in mm (shortest electrode) 316Ti (120-4000 mm) per 500 mm Rod length L3 in mm 316Ti (120-4000 mm) per 500 mm
  10. 10. 152 L G½ ~43 mm (1.69") 46 mm (1.81") 53mm (2.05") 20mm (0.79") ø8 mm (0.32") M16x1,5 SW 41 mm (1.61") Delivery time: EL 1 Conductive rod electrode Application area The rod electrode EL 1 is a universal level switch for conductive liquids. The instrument is ideal as overfill and dry run protection in conjunction with VEGATOR 256C or VEGATOR 632 signal conditioning instruments. Your benefit − Simple installation in narrow space applications through small sensor dimensions − Low maintenance costs through robust design − High flexibility through shortenable probe Technical data Version: partly insulated rod Probe length: up to 4 m Process fitting: thread G½ Materials: 316Ti, PE Process temperature: -50 … +130 °C Process pressure: -1 … +63 bar (-100 … +6300 kPa)
  11. 11. 153 Approval .X Without .................................................................................................................................................................................... EX.X ATEX II 1G, 1/2G, 2G Ex ia IIC T6 ......................................................................................................................................... EX.A ATEX II 1G, 1/2G, 2G Ex ia IIC T6 + WHG ............................................................................................................................ Number of rod electrodes 1 1 rod electrode .................................................................................................................................................................. Line break monitoring X without ........................................................................................................................................................................ M Line break monitoring for VEGATOR 632 ................................................................................................................. EL1 Rod length in mm 316Ti (40-4000 mm) per 250 mm
  12. 12. 154 66 mm (2.6") 57 mm (2.24") ø 6 mm (0.24") 59mm (2.32") 80mm (3.15") SW 60 mm (2.36") L2 L3 L1 G1 ½ 20mm (0.79") Delivery time: EL 3 Conductive multiple rod electrode Application area The multiple rod electrode EL 3 is a universal level switch for conductive liquids. The instrument is ideal as overfill and dry run protection or pump control in conjunction with VEGATOR 256C or VEGATOR 632 signal conditioning instruments. Your benefit − Simple setup with minimum time and cost expenditure − High flexibility through shortenable probe − Maintenance-free through robust design Technical data Version: partly insulated rod Probe length: up to 6 m Process fitting: thread G1½ Materials: 316Ti, PTFE Process temperature: -50 … +130 °C Process pressure: -1 … +63 bar (-100 … +6300 kPa)
  13. 13. 155 Approval .X Without ................................................................................................................................................................................... EX.X ATEX II 1G, 1/2G, 2G Ex ia IIC T6 ........................................................................................................................................ EX.A ATEX II 1G, 1/2G, 2G Ex ia IIC T6 + WHG ........................................................................................................................... Number of rod electrodes 2 2 rod electrodes ................................................................................................................................................................ 3 3 rod electrodes ................................................................................................................................................................ 4 4 rod electrodes ................................................................................................................................................................ 5 5 rod electrodes ................................................................................................................................................................ Material rod VTV 316Ti ..................................................................................................................................................................... Line break monitoring X without ........................................................................................................................................................... M Line break monitoring for VEGATOR 632 ..................................................................................................... EL3 L1 in mm (longest) 316L (50-6000 mm) per 500 mm L2 in mm (shortest) 316L (35-6000 mm) per 500 mm L3 in mm 316L (50-6000 mm) per 500 mm L4 in mm 316L (50-6000 mm) per 500 mm L5 in mm 316L (50-6000 mm) per 500 mm
  14. 14. 156 66 mm (2.6") 62 mm (2.24") 55mm (2.17") 78mm (3.07") SW 60 mm (2.36") L2 L3 L1 G1 ½ 22mm (0.87") ø 4 mm (0.16") Delivery time: EL 4 Conductive multiple rod electrode Application area The multiple rod electrode EL 4 is a universal level switch for conductive liquids. The instrument is ideal as overfill and dry run protection or pump control in conjunction with VEGATOR 256C or VEGATOR 632 signal conditioning instruments. Your benefit − Reliable pump control through multiple rod probe − High flexibility through shortenable probe − Reduced stockkeeping through exchangeable rod probes Technical data Version: partly insulated rod Probe length: up to 4 m Process fitting: thread G1½ Materials: 316Ti, PP Process temperature: -20 … +100 °C Process pressure: -1 … +6 bar (-100 … +600 kPa)
  15. 15. 157 Approval .X Without ....................................................................................................................................................................................... Number of rod electrodes 2 2 rod electrodes .................................................................................................................................................................... 3 3 rod electrodes .................................................................................................................................................................... 4 4 rod electrodes .................................................................................................................................................................... 5 5 rod electrodes .................................................................................................................................................................... Material rod VTK 316Ti .......................................................................................................................................................................... Line break monitoring X without ................................................................................................................................................................ M Line break monitoring for VEGATOR 632 .......................................................................................................... EL4 L1 in mm (longest) 316Ti (100-4000 mm) per 500 mm L2 in mm (shortest) 316Ti (100-4000 mm) per 500 mm L3 in mm 316Ti (100-4000 mm) per 500 mm L4 in mm 316Ti (100-4000 mm) per 500 mm L5 in mm 316Ti (100-4000 mm) per 500 mm
  16. 16. 158 66 mm (2.6") 62 mm (2.24") 55mm (2.17") 78mm (3.07") SW 60 mm (2.36") G1 ½ 22mm (0.87") ø 12 mm (0.47") L2 L3 L1 1.4571 FEP ø 2,5 mm (0.1") 80mm (3.15") Delivery time: EL 6 Conductive multiple cable electrode Application area The multiple cable electrode EL 6 is a universal level switch for conductive liquids. The instrument is ideal as overfill and dry run protection or pump control in conjunction with VEGATOR 256C or VEGATOR 632 signal conditioning instruments. Your benefit − Economical pump control through multiple cable probe − High flexibility through shortenable cable probes − Reduced stockkeeping through exchangeable cable probes Technical data Version: partly insulated cable Probe length: up to 50 m Process fitting: thread G1½ Materials: 316Ti, PP/FEP Process temperature: -20 … +100 °C Process pressure: -1 … +6 bar (-100 … +600 kPa)
  17. 17. 159 Approval .X Without ........................................................................................................................................................................................ Number of cable electrodes 2 2 wire electrodes ................................................................................................................................................................... 3 3 wire electrodes ................................................................................................................................................................... 4 4 wire electrodes ................................................................................................................................................................... 5 5 wire electrodes ................................................................................................................................................................... Material cable and gravity weight VAK 316Ti .......................................................................................................................................................................... Line break monitoring X without ................................................................................................................................................................ M Line break monitoring for VEGATOR 632 .......................................................................................................... EL6 L1 in mm (longest) 316Ti/FEP insulated (220-50000 mm) per 1000 mm L2 in mm (shortest) 316Ti/FEP insulated (220-50000 mm) per 1000 mm L3 in mm 316Ti/FEP insulated (220-50000 mm) per 1000 mm L4 in mm 316Ti/FEP insulated (220-50000 mm) per 1000 mm L5 in mm 316Ti/FEP insulated (220-50000 mm) per 1000 mm
  18. 18. 160 ø 6,8 mm (0.27") ø 4 mm (0.16") ø 24 mm (0.95") 12mm (0.47") 30mm (1.18") 27mm (1.06") SW 27 mm (1.06") G ½ L Delivery time: EL 8 Conductive rod electrode Application area The rod electrode EL 8 is a universal level switch for conductive liquids. The instrument is ideal as overfill or dry run protection in conjunction with VEGATOR 256C or VEGATOR 632 signal conditioning instruments. Your benefit − Price-favourable level detection − Simple installation in narrow space applications through small sensor dimensions Technical data Version: partly insulated rod Probe length: up to 3 m Process fitting: thread G½ Materials: 316Ti, PE Process temperature: -10 … +60 °C Process pressure: -1 … +6 bar (-100 … +600 kPa) Approval .X Without .......................................................................................................................................................................................... Number of rod electrodes 1 1 rod electrode ......................................................................................................................................................................... Material rod VEG 316Ti ............................................................................................................................................................................. EL8 Rod length in mm 316Ti (27-3000 mm) per 250 mm
  19. 19. 161 VEGATOR 256C VEGATOR 632 Application Signal conditioning instrument for conductive probes Signal conditioning instrument for conductive probes Input 1 x level detection or 1 x pump control Double channel Hysteresis 1 … 200 kOhm adjustable 1 … 200 kOhm adjustable Output 1 x relay output 2 x relay output Operating voltage 20 … 250 V AC, 50/60 Hz 85 … 253 V AC, 50/60 Hz or 20 … 30 V AC, 50/60 Hz, 20 … 60 V DC Mounting Wall mounting Carrier rail 35 x 7.5 acc. to EN 50022 Carrier rail 35 x 7.5 acc. to EN 50022 Display LED 1x LED supply 1x LED switching signal 1x LED false signal Approvals – ATEX, WHG
  20. 20. 162 66 mm (2.6") 37 mm (1.46") 68mm (2.68") 0 10 8 7 6 5 4 N L1 3 2 1 max. min. R 200...250VAC3VApowersupply Relais:max250V,5A,750VA Delivery time: VEGATOR 256C Signal conditioning instrument for conductive electrodes Application area The VEGATOR 256C is a signal conditioning instrument for conductive electrodes EL 1 … EL 8. Applications are simple level detections or pump controls. Your benefit − Compact unit of voltage supply and processing of a conductive probe − Simple adjustment of the switching point via a potentiometer − Simple installation through carrier rail mounting Technical data Input: 1 x level detection or 1 x pump control Output: 1 x relay output Response sensitivity: 1 … 200 kOhm adjustable Switching hysteresis: approx. 20 % Operating voltage: 20 … 250 V AC, 50/60 Hz Mounting: wall mounting carrier rail 35 x 7.5 acc. to EN 50022 Operating voltage E 24V AC ............................................................................................................................................................................ B 100...130V AC ................................................................................................................................................................. A 200...250V AC ................................................................................................................................................................. TOR256C.X
  21. 21. 163 109,5mm (4.31") 95mm (3.74") 22,5 mm (0.89") 117,5 mm (4.63") Delivery time: VEGATOR 632 Signal conditioning instrument for conductive electrodes Application area The VEGATOR 632 is a double channel signal conditioning instrument for conductive electrodes type EL. Applications are level detections and pump controls. In conjunction with multiple rod or cable electrodes several VEGATOR 632 can be combined with the probe. Your benefit − Two independent level detections or one min./max. control (two-point control) − Integrated fault monitoring with LED indication detects shortcircuit and line break − Simple mounting through carrier rail Technical data Input: double channel Output: 2 x relay output Response sensitivity: 1 … 200 kOhm adjustable Operating voltage: 85 … 253 V AC, 50/60 Hz or 20 … 30 V AC, 50/60 Hz, 20 … 60 V DC Mounting: carrier rail 35 x 7.5 acc. to EN 50022 Approval XX without .............................................................................................................................................................................. CX ATEX II (1) G [Ex ia] IIC/IIB + II (1) D [Ex iaD] ................................................................................................................. CA ATEX II (1) G [Ex ia] IIC/IIB + II (1) D [Ex iaD] + WHG .................................................................................................... Version D 20...30V AC / 20...60V DC ......................................................................................................................................... A 85...253V AC .............................................................................................................................................................. TOR632.
  22. 22. 164

×