Models DE, DEC

Compact differential pressure switch

Ex protection EEx-d, IP 65

Selected documents
Sales contact

WIKA USA

Tel.:
1-888-945-2872
Fax:
1-770-338-5118
info@wika.com

Applications

  • Differential pressure monitoring and direct switching of electrical loads
  • For gaseous and liquid, aggressive and highly viscous or contaminated media, also in aggressive ambience
  • Process industry: Chemical/petrochemical, on- and offshore, technical gases, environmental technology, machine building and general plant construction, water treatment, pharmaceutical industry
  • Pump monitoring and control / filter monitoring, level measurement in closed tanks
  • Ignition protection type GAS Ex-d DUST Ex-tD Gr. II Cat. 1/2 GD

Special Features

  • Case flameproof enclosure
  • Ingress protection IP 65, NEMA 4
  • Ambient temperature -30 ... +85 °C
  • 1 switch point, SPDT or DPDT with a high contact rating of up to 15 A / AC 220 V
  • Working pressure (static pressure) up to 160 bar

Description

These high-quality differential pressure switches have been developed especially for safety-critical applications. The high quality of the products ensures reliable monitoring of your plant. The manufacturer Cella is certified to ISO 9001. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.

All wetted parts materials are from stainless steel or Inconel 718, depending on the measuring range. Each switch family is available in IP 65, Ex-ia or Ex-d versions (Ex-ia see model DC, data sheet PV 35.40).

In order to ensure as flexible operation as possible, the pressure switches are equipped with micro switches, which make it possible to switch an electrical load of up to 15 A / AC 220 V directly.

For smaller contact ratings, such as for PLC applications, Argon gas-filled micro switches with gold-plated contacts can be selected as an option. A DPDT switch is realised through 2 SPDT switches, which switch simultaneously within 2 % of the full scale value.

By using a liquid-filled diaphragm measuring cell with fulcrum lever transmission, the model DE pressure switch is extremely reliable and guarantees optimal operating characteristics.

CELLA
Compact differential pressure switch
  • Compact differential pressure switch
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