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Read carefully the instructions published in this manual before the first use of the sensor. Keep the manual

 

at a safe place. The manufacturer reserves the right to implement changes without prior notice

C

apaCitive

 

level

 

sensors

  

INSTRUCTIONS MANUAL

GDS-27 Series CAP

A

CITIVE LEVEL SENSORS INSTR

UCTIONS

GDS-27

Содержание GDS-27

Страница 1: ...nual before the first use of the sensor Keep the manual at a safe place The manufacturer reserves the right to implement changes without prior notice Capacitive level sensors INSTRUCTIONS MANUAL GDS 27 Series CAPACITIVE LEVEL SENSORS INSTRUCTIONS GDS 27 ...

Страница 2: ...10 6 Electrical connection 11 7 Sensor setting 12 8 Status signalization 13 9 Accessories 14 10 Order code 15 11 Correct specification examples 15 12 Safety protections compatibility 16 13 Use manipulation and maintenance 16 14 General conditions and warranty 16 15 Specifications 17 16 FAQ Frequently asked questions 20 ...

Страница 3: ... during the transport did not occurred the damage of the packaging or the equipment The device apparently damaged during transport do not use and contact the manufacturer to resolve the situation If the device is transported further then only wrapped in the original packaging and protected against shocks and weather Store the device in its original packaging in a dry place sheltered from the weath...

Страница 4: ...ated electrode for sensing bulk solid powder materials and conductive or non conductive liquids Mounting from the top vertically or slant from the side Electrode length from 0 1m to 3m GDS 27_ 31 Fully coated rod electrode for sensing aggressive electrically conductive liquids water solutions of chemicals vertical mounting Electrode length from 0 1m to 2m GDS 27_ 40 Uncoated stainless steel rope e...

Страница 5: ... GDS 27 3 Dimensional drawings GDS 27_ 10 GDS 27_ 11 GDS 27_ 20 GDS 27_ 21 22 GDS 27_ 30 GDS 27_ 31 GDS 27_ 40 High temperatures variants Tri clamp process coupling Thead Type of threads G 3 4 M27x2 M30x1 5 ...

Страница 6: ...cally mounted sensors 20 E 40 b 50 E 10 c 40 E 40 d 20 E 20 k E 3 1 E 10 1 a 20 E 40 b 50 E 10 c 40 E 40 d 20 E 20 k E 3 4 s E 3 1 E 10 1 a 20 E 40 b 50 E 10 c 40 E 40 d 20 E 20 k E Electrode length in mm During assembly into the metal tank or the storage tank it is not necessary to separately ground the base of the level sensor In the case of installation in concrete tanks or silos it is recommen...

Страница 7: ...all mount ing it is necessary to avoid long fit ting tubes where could the rests of sensed media cumulate see the right figure We recommend to mount the sensor so that the whole sensing electrode is inside the con tainer vessel All from side mounted sensor In the case of side wall mount ing it is necessary to place the sensor aside the falling material liquid or solid All from side mounted sensors...

Страница 8: ...ch is permanently dipped into the medium e g conductive probe CNP 18 or can be use the auxiliary plate electrode PDE 27 where the first part has thread for install of the sensor and the second part is installed from the side on the wall into the area for the expected switching of the level sensor Both parts of PDE 27 are connected by steel wire The area of the plate auxiliary electrode is a minimu...

Страница 9: ...de the minimum distance of the inner walls from the electrode at 5 mm In some cases sticky fluids low permittiv ity liquids it is better to mount the sensor to pipe bend For GDS 27_ 10 11 21 22 In the case of vertical mounting it is possible to use hysteresis setting for simple two state regulation pump control The height of the controlled level is done by sensitivity setting the gap between the m...

Страница 10: ...t etc It is possible to use it for non conductive fluids with up to 2 of water plant oils liquid propane etc The sensor with electrode longer than 300 mm is recom mended to mount in vertical position only Sensor is mounted directly into a vessel or container wall in horizontal up to E300 slant or vertical position by means of welding flange or stainless steel fixing nut We should minimize the holl...

Страница 11: ...el container or basin in slant or vertical position by means of welding flange or stainless steel fixing nut In case of level sensing of low permittivity media in non conductive containers it is recommended to mount the sensor on auxiliary metal plate electrode with min 500 cm2 area GDS 27_ 31 Is designed for limit level detection of conductive liquids water and solutions of chemicals It is possib...

Страница 12: ...he sensi tivity higher If the sensed medium is at your disposal before setting into service it is useful to provide individual setting as follows In this way it is possible to achieve resistance against sediments LED Hysteresis Cable outlet or connector Sensitivity Electrical connection must be done in de energized state For switching supply sources it is necessary to check that the input is galva...

Страница 13: ... reverse direction turning makes it lower The lower the hysteresis is the higher sensitivity is possible to obtain but the resistance against various disturbances get worse For usual applications is optimal hysteresis from to rotation of sensitivity trimmer After setting it is necessary to properly tighten cover screws Sensitivity characteristics Type of sensor Treshold sensitivity Hysteresis Sens...

Страница 14: ...ine GDS 27N_ __ _ NC _ GDS 27N_ __ _ PC _ OPEN Dark 9 Accessories Standard included in the level sensors price 1 pcs Seal asbestos free 1 pcs Screwdriver for adjustment each 5 pcs Optional for extra charge Extra cables over the standard length 2m Connector socket type ELWIKA or ELKA Normal steel welding flange ON 27x2 Stainless steel welding flange NN G3 4 Stainless steel fixing nut UM 27x2 Other ...

Страница 15: ...ector Spec type of the socket Performance N Normal for non explosive areas NT High temperature performance Process connection G Pipe thread G3 4 M27 Metric thread M27x2 M30 Metric thread M30x1 5 Cl Tri clamp coupling 10 Order code 11 Correct specification examples GDS 27N 10 B NO M27 E100 cable 5m N Normal performance 10 Uncoated bar electrode B Cable outlet with 5 m length cable NO Output type NP...

Страница 16: ...ation commissioning service and maintenance of the GDS 27 level sensor must be carried out in accordance with this manual and the provisions of valid standards for the installation of electrical equipment must be complied with 14 General conditions and warranty GMS guarantees for the period of one 1 year that the product has the characteristic as in technical specification is mentioned The guarant...

Страница 17: ... performance GDS 27Xd 200 mA 150 mA Remanent voltage ON state Max 1 5 V Output time delay 0 2 s Input resistance Electric strength 1 MΩ 1 kV AC Coupling capacity Electric strength 47 nF 250 V AC Protection class IP67 Cable version with cable outlets PVC 3 x 0 5 mm2 or 2x0 75 mm2 Weight excl electrode cable 2 m GDS 27_ GDS 27_T Approx 0 4kg Approx 0 7kg Only for variants N and Xd 15 Specifications ...

Страница 18: ...S 27N 20 21 31 Teflon FEP Fluorinated ethylene propylene Electrode coating GDS 27_ 22 Teflon PFA Perfluoroalkoxy Weight GDS 27_ 40 W Nr 1 4301 AISI 304 On request can be selected other type of material Process connection Type Size Marking Pipe thread G3 4 G Metric thread M27x2 M27 Metric thread M30x1 5 M30 Tri clamp standards DN 20 Cl Type of output Output Variants NPN NC NO N NT PNP PC PO N NT Wo...

Страница 19: ...80 C GDS 27N 10 11 40 C 100 C 25 C 85 C 20 C 80 C 3 MPa 2 MPa GDS 27N 20 30 40 C 300 C 25 C 85 C 20 C 80 C 3 MPa 2 MPa GDS 27N 21 22 31 40 40 C 200 C 25 C 85 C 20 C 80 C 3 MPa 2 MPa GDS 27NT 10 11 21 22 31 40 40 C 200 C 40 C 200 C 20 C 80 C 3 MPa 2 MPa 0 5 MPa 0 3 MPa 0 1 MPa GDS 27NT 20 30 40 C 300 C 40 C 200 C 20 C 80 C 3 MPa 2 MPa 0 5 MPa 0 3 MPa 0 1 MPa Pozn Pro správnou funkci hladinoměru nes...

Страница 20: ...the source and connect it again The sensor is evidently set so that it has too large hysteresis and the change of the capacity after deactivation is insufficient for exceeding the area of hysteresis and re disconnection It is sufficient to decrease the hysteresis or to modify decrease the sensitivity so that the sensor is able to achieve both marginal statuses connection and disconnection The sens...

Страница 21: ...is instruction manual can be found at www gmsko com Version 01 2017 101 308 Digital Empire II Shinwon ro 88 Yeongtong gu Suwon si Gyeonggi do Korea Tel 82 31 243 1035 Fax 82 31 243 1025 E mail export gms korea com www gmsko com ...

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