112.28 pressure gauge with bourdon hose for WIKA refrigeration technology

Description

112.28 WIKA refrigeration bourdon tube pressure gauge is used for pressure measurement of gaseous and liquid media.

The mechanical model 112.28 Bourdon Pressure Gauge is made of a copper alloy housing.

Model 112.28 meets the requirements of the international industry standard EN 837-1 for Bourdon tube manometers.

Common measurement sites are found in the mechanical engineering, plant construction and building services industries. The 112.28 model can also be used in refrigeration applications.

The cases are available in a nominal size of 80 mm and meet IP54 ingress protection. With an accuracy class of 1.6, this pressure gauge is suitable for the process industry.

The modular design allows for a multitude of combinations of process connections, nominal sizes and scales of scope. This high variance allows universal use of the instrument in the industrial sector.

For mounting on control panels, pressure gauges can be equipped with a mounting flange or with a triangular plate and mounting bracket.

 

Features 112.28

• Design: EN 837-1
• Nominal size in mm: 80
• accuracy class: 1.6
• Scale range:
  • Model 112.28: 0 … 0.6 to 0 … 40 bar
  • Model 132.28: 0 … 1 to 0 … 40 bar
  • or any other equivalent pressure and vacuum ranges
• Pressure limit:
  • Continuous: full scale value
  • Niha: 0.9 x total scale value
  • Short time: 1.3 x total value
• Allowable temperature:
  • Environment: -40 °C … +60 °C
  • Medium: maximum +60 °C (model 112,28)
• Effect of temperature
• When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ± 0.4 % / 10 K full scale
• Ingress protection IP 54 to EN 60529 / lEC 529

Standard version:

• Process link:
  • Model 112.28: Cu-alloy
  • Lower beam (LM) or centre rear beam (CBM),
  • G 3/8 B (male), 19 mm housing
• Pressure element:
  • Model 112.28: Cu-alloy
• Movement:
  • Cu-alloy, worn parts argentan
• Counter:
  • Aluminium, white, black letters
• Index:
  • Aluminium, black
• Housing:
  • Stainless steel
• Window:
  • Polycarbonate
• Frame ring:
  • Crimp ring, glossy stainless steel finish

To view additional options and more technical features, we recommend viewing the attached .pdf documents under the Documentation section.

 

Areas of use, applications

• Hydraulics
• compressors
• cooling technology
• Model 112.28: Cu-alloy measuring system
• for gaseous and liquid agents which are not highly viscous or crystallising