SERIES 310
   VERY LOW RANGES
   CLEAN ROOMS
   FILTER BLOCKAGE
   AIR PURGE SYSTEMS
   FAN FAILURE
   FAN EXHAUST
   REFRIGERATION COILS
   DRYING OVENS

SWITZER Series 310 differential pressure switches are specially designed for sensing very low differential pressure in mmWC / mbar ranges for reliable setting in varied applications.

A precision contoured synthetic elastomer diaphragm senses low differential pressures applied to either side of it and actuates a snap-acting microswitch when the input differential pressure is slightly above or below the pre-set value.

The switch mechanism and the set point adjustment are external to the sensing chamber and completely isolated from contact with the process medium.

While Style GN housing offers limited very low ranges and microswitches to meet OEM requirements, Style GM & GK versions offer more ranges, microswitch options and wideband adjustment facility.

A scale is provided for approximate switch setting.

SERIES 306 / 368 :
   VERY LOW RANGES
   GOOD REPEATABILITY
   TAMPERPROOF SET POINT ADJUSTER WITH LOCKING DEVICE
   WEATHERPROOF OR FLAMEPROOF HOUSING
   RUGGED DESIGN

Series 300 Pressure Difference Switches are designed and made to the latest standards to comply with current international philosophy of process instrumentation. The series is compact, easy to install and features high sensitivity over the entire adjustable range together with high static pressure capability. The sensing element is mounted external to the switch mechanisms which are of stainless steel for arduous atmospheres and high humidity. Enclosures, sensing element and switching modes can be combined to offer the variety needed to suit the different applications.

SERIES 301 / 303 / 304 / 381 / 384 :
   GOOD REPEATABILITY
   HIGH STATIC PRESSURE
   TAMPERPROOF SET POINT ADJUSTER WITH LOCKING DEVICE
   WEATHERPROOF OR FLAMEPROOF HOUSING
   OVERTRAVEL STOP
   RUGGED DESIGN

Series 300 Pressure Difference Switches are designed and made to the latest standards to comply with current international philosophy of process instrumentation. The series is compact , easy to install and features high sensitivity over the entire adjustable range together with very high static pressure capability. The sensing element is mounted external to the switch mechanisms which are of stainless steel for ardous atmospheres and high humidity. Enclosures, sensing element and switching modes can be combined to offer the variety needed to suit the different applications.