Level switch vertical mounting

Level switch vertical mounting

Level switch vertical mounting

Product catalog summary
Application
The Level Switch is designed for monitoring the liquid level of non-flammable liquids in hazardous areas, specifically zones 1 and 21. It operates using magnetic floating switches to detect minimum liquid levels.

Specifications
  • Operating Temperature: -40 to +100 °C
  • Operating Pressure: 10 barg
  • Liquid Density: ≥ 0.7 g/cm³

Design
The device comprises an enclosure, immersion tube, and float balls. It offers different connection types: flameproof "Ex d" or increased safety "Ex e", with an intrinsically safe version "Ex i" available.

Installation
Type DNH is for horizontal mounting, while type DNV is for vertical mounting.

Materials and Surface Treatment
Components in contact with the medium are made from stainless steel 321 or 316Ti. The Ex e enclosure is made from painted cast iron.

Protection Types
  • Standard: II 2 G Ex de IIC T6 Gb
  • ATEX certified for hazardous areas II 2G or 2D
  • Protection IP 66 according to EN 60529
  • IECEx CoC: TUR 12.0010X

Electrical Data
  • Current: AC or DC
  • Nominal Power: max. 50 W / 60 VA
  • Nominal Voltage: max. 250 V AC / DC
  • Nominal Current: max. 0.1 A
  • Connection Wire: max. 2.5 mm²
  • Cable Gland Ex e: M20x1.5 for cable-ø 7...13 mm
  • Ambient Temperature: -40 to +60 °C

SIL Classification
  • PFH < 1*10-6
  • PFD (TProof ≤ 1 year) < 1*10-3
  • HFT 0
  • SIL Class 1
The level switch is suitable for circuits requiring SIL1 or IPL1.

Special Designs (Optional)
  • Different flange options
  • Stainless steel design
  • Vertical mounting with up to 3 switching points (Type DNV)
  • Different protection types
  • Ex i type IN...
  • TR-CU or IECEx certification
  • Dust-Ex for zones 21 or 22

Selection Table
The document includes a selection table for standard heaters with details on article numbers, types, connection flanges, sealing surfaces, mounting holes, protection types, and temperature classes.
See more

Catalog excerpts

Level switch vertical mounting-1

Niveauwachter DNH / DNV Level Switch Anwendung Der Niveauwachter dient zur Uberwachung des Fullstandes von nicht brennbaren Flussigkeiten (Minimum Pegel) innerhalb explosionsgefahrdeter Bereiche der Zone 1 und 21. Das Flussigkeitsniveau wird durch Kontakte, die mittels eines oder mehrerer magnetischer Schwimmer geschaltet werden, uberwacht. Aufbau Der Niveauwachter besteht aus einem Gehause mit angebautem Tauchrohr und Schwimmern. Der Anschluss von Typ DN... erfolgt wahlweise in der druckfesten Kapselung „Ex d“ mit einer zugelassenen Kabel- und Leitungseinfuhrung oder in einem Anschlussraum Erhohte Sicherheit „Ex e“. Daruber hinaus existiert auch eine Variante Typ IN... mit Eigensicherheit „Ex i“. Errichtung Der Niveauwachter Typ DNH... ist waagerecht, der Niveauwachter Typ DNV... ist senkrecht zu montieren. Werkstoffe und Oberflachenbehandlung Ex d Gehauseunterteil, Flansch und alle medienberuhrenden Bauteile aus Edelstahl 1.4541 und 1.4571. Ex e Gehausedeckel und Anschlusskastendeckel aus Grauguss GG-25 Hammerschlag silbergrau lackiert. Schutzarten Standardausfuhrung: II 2 G Ex de 11C T6 Gb entsprechend der EG Baumusterprufbescheinigung TUV 12 ATEX 7247 X. Zugelassen fur alle gefahrdeten Bereiche II 2G und 2D. Schutzart IP 66 entsprechend EN 60529. TR-CU-Zulassung (EAC) IECEx CoC: TUR 12.0010X. Application The Level switch serves for monitoring of the liquid level of non flammable liquids (minimum level) within hazardous areas zone 1 and 21. The liquid level is monitored by contacts, which are switched by means of one or several magnetic floating switches. Permissible operating temperature: - 40 / + 100 °C Permissible operating pressure: 10 barg Permissible liquid density: > 0,7 g/cm3 Design The level switch consists of an enclosure and an immersion tube and float balls. The connection of type DN... is done either within the flameproof enclosure “Ex d” with a certified cable gland, or within the increased safety connection box “Ex e”. Optionally, an intrinsically safe version “Ex i”, Type IN..., is available. Erection The level switch type DNH... is for horizontal mounting, type DNV... for vertical mounting. Materials and surface Ex d enclosure, flange and all materials in contact with the medium are made from stainless steel 321 or 316Ti. Ex e enclosure and enclosure cover are made from cast iron, painted. Type of protection Standard type: 112 G Ex de IIC T6 Gb acc. to EC type examination certificate TOV 12 ATEX 7247X ATEX certified for all hazardous areas II2G or 2D. Protection IP 66 according to EN 60529 TR CU certificate (EAC) IECEx CoC: TUR 12.0010X ELMESS-Thermosystemtechnik GmbH & Co. KG ■ Nordallee 1, D-29525 Uelzen ■ [email protected] www.elmess.de

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Level switch vertical mounting-2

Niveauwachter DNH / DNV Level Switch Sonderausfuhrungen (optional) <&> II 2 G Exd IICT6Gb, <5>ll2GExibllCT6 Gb II 2 D ExtD A21 IP66 T85°C Db <§> II 2 D Ex ibD 21 IP66 T85°C Db Special design (optional): <5>ll2GExd IICT6 Gb, <S> II 2 G Ex ib IIC T6 Gb Oder II 2 D Ex tD A21 IP66 T85°C Db <5> II 2 D Ex ibD 21 IP66 T85°C Db Elektrische Daten fur Standardgerate Stromart: Wechselstrom oder Gleichstrom Bemessungsleistung: max. 50 W / 60 VA Electrical Data for standard design Current: Nominal power: Nominal voltage: Nominal current: Connection wire: max. 2,5 mm2 Umgebungstemperaturen: - 40 / +...

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