WIKA Capsule Pressure Gauge with Switch Contacts (632.51+8xx)

For the process industry, high overload safety


  • Control and regulation of processes at measuring points with increased overload and scale ranges from 0 … 2.5 mbar
  • Monitoring of plants and switching of circuits
  • For gaseous, aggressive media, also in aggressive environments
  • Process industry: Chemical industry, petrochemical industry, power plants, mining, on-/offshore, environmental technology, machine building and general plant construction

Special Features

  • High overload safety up to 50 x full scale value
  • High reliability and long service life
  • Up to 4 switch contacts per instrument
  • Instruments with inductive contacts for use in hazardous areas
  • Instruments with switch contact for PLC applications

Sales Contact (Wika.sales@asyatrafo.com)




Wherever the process pressure has to be indicated locally and, at the same time, circuits need to be switched, the model 632.51 switchGAUGE finds its use. Switch contacts (electrical alarm contacts) make or break circuits dependent upon the pointer position of the indicating measuring instruments. The switch contacts are adjustable over the full extent of the scale range (see DIN 16085), and are mounted predominantly below the dial, though also partly on top of the dial. The instrument pointer (actual value pointer) moves freely across the entire scale range, independent of the setting.
The set pointer can be adjusted using a removable adjustment key in the window.

Switch contacts consisting of several contacts can also be set to a single set point. Contact actuation is made when the actual value pointer travels beyond or below the desired set point. The pressure measuring instrument is manufactured in accordance with DIN 16085 and fulfils all requirements of the relevant standards (EN 837-3) and regulations for the on-site display of the working pressure of pressure vessels.
As switch contacts, magnetic snap-action contacts, reed switches, inductive contacts and electronic contacts are available. Inductive contacts can be used in hazardous areas. For triggering programmable logic controllers (PLC), electronic contacts and reed switches can be used.