Vega VEGACAP 27 Operating Instructions Manual
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Vega VEGACAP 27 Operating Instructions Manual

Capacitive rod electrode for level detection relay (dpdt)
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Operating Instructions
Capacitive rod electrode for level
detection
VEGACAP 27
Relay (DPDT)
Document ID: 33758

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Summary of Contents for Vega VEGACAP 27

  • Page 1 Operating Instructions Capacitive rod electrode for level detection VEGACAP 27 Relay (DPDT) Document ID: 33758...

  • Page 2: Table Of Contents

    How to proceed if a repair is necessary ................22 Dismount..........................23 Dismounting steps......................23 Disposal ......................... 23 Supplement ..........................24 Technical data ........................ 24 Dimensions ........................28 Industrial property rights ....................30 Trademark ........................30 Editing status: 2023-04-26 VEGACAP 27 • Relay (DPDT)

  • Page 3: About This Document

    Symbols used Document ID This symbol on the front page of this instruction refers to the Docu- ment ID. By entering the Document ID on www.vega.com you will reach the document download. Information, note, tip: This symbol indicates helpful additional infor- mation and tips for successful work.

  • Page 4: For Your Safety

    During work on and with the device, the required personal protective equipment must always be worn. Appropriate use The VEGACAP 27 is a sensor for point level detection. You can find detailed information about the area of application in chapter " Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.

  • Page 5: Conformity

    That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfil this obligation by observing the environmental instructions in this manual: • Chapter " Packaging, transport and storage" • Chapter " Disposal" VEGACAP 27 • Relay (DPDT)

  • Page 6: Product Description

    – If necessary, further certificates Information: Optional instrument features are also described in this operating instructions manual. The respective scope of delivery results from the order specification. Constituent parts The VEGACAP 27 consists of the components: • Process fitting with probe • Housing with electronics • Housing lid Fig.

  • Page 7: Principle Of Operation

    The capacitance change is converted by the electronics module into a switching command. Voltage supply VEGACAP 27 is a compact instrument, i.e. it can be operated without external evaluation system. The integrated electronics evaluates the level signal and outputs a switching signal. With this switching signal, a connected device can be operated directly (e.g.

  • Page 8: Packaging, Transport And Storage

    Technical data - Ambient conditions" • Relative moisture 20 … 85 % Lifting and carrying With instrument weights of more than 18 kg (39.68 lbs) suitable and approved equipment must be used for lifting and carrying. VEGACAP 27 • Relay (DPDT)

  • Page 9: Mounting

    (e.g. through cleaning processes) or on cooled or heated vessels. VEGACAP 27 • Relay (DPDT)

  • Page 10: Mounting Instructions

    Agitators and fluidization Due to the effects of agitators, equipment vibration or similar, the level switch can be subjected to strong lateral forces. For this reason, do not use an overly long electrode for VEGACAP 27, but check if you can mount a short level switch on the side of the vessel in horizontal position. Extreme vibration caused by the system, e.g. due to agitators or turbulence in the vessel from fluidisation, can cause the probe of VEGACAP 27 to vibrate in resonance.
  • Page 11 4 Mounting instrument at a position in the vessel where no disturbances, e.g. from filling openings, agitators, etc., can occur. This applies particularly to instrument versions with a longer probe. Fig. 4: Inflowing medium VEGACAP 27 • Relay (DPDT)

  • Page 12: Connecting To Power Supply

    Wiring plan - single chamber housing Wiring plan We recommend connecting VEGACAP 27 in such a way that the switching circuit is open when there is a level signal, line break or failure (safe state).
  • Page 13 Inductive loads also result from the connection to a PLC input or output and/or in combination with long cables. It is imperative that you take measures to extinguish sparks to protect the relay contact (e.g. Z diode) or use an electronic version with transistor output. VEGACAP 27 • Relay (DPDT)

  • Page 14: Setup

    Note: As a rule, always set the mode with the mode switch (5) before start- ing setup VEGACAP 27. The switching output will change if you set the mode switch (5) afterwards. This could possibly trigger other con- nected instruments or devices.
  • Page 15 The measuring system is immediately ready for operation. ment The switching point must no longer be set with VEGACAP 27. The probe has an active tip and a screen segment. Thanks to the screen segment, the so called standing capacitance, caused by the vessel after installation of the probe, is mainly compensated.

  • Page 16: Function Table

    The following table provides an overview of the switching conditions depending on the set mode and the level. Level Switching status Control lamp Mode A Overflow protec- tion (6) (7) Relay energized Mode A Overflow protec- tion (6) (7) Relay deener- gized VEGACAP 27 • Relay (DPDT)
  • Page 17 Switching status Control lamp Mode B Dry run protection (6) (7) Relay energized Mode B Dry run protection (6) (7) Relay deener- gized Failure of the sup- ply voltage (mode A/B) (6) (7) Relay deener- gized VEGACAP 27 • Relay (DPDT)

  • Page 18: Diagnostics And Servicing

    Should these measures not be successful, please call in urgent cases 24 hour service hotline the VEGA service hotline under the phone no. +49 1805 858550. The hotline is also available outside normal working hours, seven days a week around the clock.
  • Page 19 Remove the electronics module. Check the resistance between the the probe two plug connections. There must no longer be a connection (high impedance). If there is still a connection, exchange the instrument or return it for repair VEGACAP 27 • Relay (DPDT)
  • Page 20 In both cases, the probe must be repaired in our premises. Contact 4 against vessel The electrical connection between contact 4 and metal vessel (not the mounting boss or probe flange) should good. Measure the resist- ance value between contact 4 and vessel with an ohmmeter (range very small). • Shortcircuit (0 … 3 Ω) - optimum connection • Resistor > 3 Ω - bad connection VEGACAP 27 • Relay (DPDT)

  • Page 21: Exchanging The Electronics Module

    3. Remove the housing cover 4. Loosen the screws of the terminals with a Allen wrench. 5. Pull the connection cables out of the terminals. 6. Loosen the two screws with a Torx screwdriver. VEGACAP 27 • Relay (DPDT)

  • Page 22: How To Proceed If A Repair Is Necessary

    Clean the instrument and pack it damage-proof • Attach the completed form and, if need be, also a safety data sheet outside on the packaging • Ask the agency serving you to get the address for the return ship- ment. You can find the agency on our homepage. VEGACAP 27 • Relay (DPDT)

  • Page 23: Dismount

    If personal data is stored on the old device to be disposed of, delete it before disposal. If you have no way to dispose of the old instrument properly, please contact us concerning return and disposal. VEGACAP 27 • Relay (DPDT)

  • Page 24: Supplement

    100 Nm (74 lbf ft) Torque for NPT cable glands and Conduit tubes Ʋ Plastic housing max. 10 Nm (7.376 lbf ft) Ʋ Aluminium housing max. 50 Nm (36.88 lbf ft) Measuring frequency 430 kHz Output variable Output Relay output (DPDT), 2 floating change-over contacts VEGACAP 27 • Relay (DPDT)
  • Page 25 Storage and transport temperature -40 … +80 °C (-40 … +176 °F) Process conditions Process pressure -1 … 63 bar/-100 … 6300 kPa (-14.5 … 914 psig) See following diagram Process temperature See following diagram VEGACAP 27 • Relay (DPDT)
  • Page 26 0°C 100°C 200°C (-58°F) (32°F) (212°F) (392°F) Fig. 9: Process pressure - Process temperature - VEGACAP 27 with process fitting of 316Ti Process pressure Process temperature Temperature range with temperature adapter Dielectric constant ≥ 1.5 Electromechanical data Options of the cable entry Ʋ Cable entry M20 x 1.5, ½ NPT VEGACAP 27 • Relay (DPDT)
  • Page 27 For that reason the associated approval documents of these instruments have to be carefully noted. They are part of the delivery or can be downloaded by entering the serial number of your instrument into the search field under www.vega.com as well as in the general download area. VEGACAP 27 • Relay (DPDT)

  • Page 28: Dimensions

    SW 60 ") G1½ / 1½”NPT ø 20 mm ") Fig. 10: VEGACAP 27, threaded version G1½ (ISO 228 T1) Sensor length, see chapter " Technical data" LA active tip, see chapter " Technical data" VEGACAP 27 • Relay (DPDT)
  • Page 29 9 Supplement SW 60 mm (2.36") SW 60 mm (2.36") Fig. 11: Temperature adapter (optional) 316L, 316Ti VEGACAP 27 • Relay (DPDT)

  • Page 30: Industrial Property Rights

    Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellec- tuelle. Pour plus d'informations, on pourra se référer au site www.vega.com. VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad indus- trial. Para mayor información revise la pagina web www.vega.com.
  • Page 31 Notes VEGACAP 27 • Relay (DPDT)
  • Page 32 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2023 VEGA Grieshaber KG Am Hohenstein 113 Phone +49 7836 50-0 77761 Schiltach E-mail: info.de@vega.com...

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