612.20 pressure gauge with capsule and WIKA copper alloy pressure element

Description

612.20 Pressure gauge with capsule and copper alloy pressure element WIKA is used in the measurement of pressure differentials of gaseous and liquid media.

The capsule pressure gauge model 612.20 is based on a proven capsule measurement system. The capsule measurement principle is particularly suitable for low pressures. At pressure, the expansion of the capsule element, proportional to the incident pressure, is transferred to the stroke and displayed.

The housing and bayonet ring are made of stainless steel. The material of the process connection is copper alloy. The modular design allows many combinations of housing materials, process connections, nominal sizes and scale. This high variance makes the instrument suitable for a wide range of industrial applications.

For mounting on control panels, depending on the process connection, the capsule pressure gauges can be equipped with a surface mounting flange or with a triangular plate and mounting bracket.

Features 612.20

• Design: EN 837-3
• Nominal size in mm: 63, 100, 160
• accuracy class: 1.6
• the scale range:
  • NS 63: 0 … 25 to 0 … 600 mbar
  • NS 100: 0 … 10 to 0 … 600 mbar
  • NS 160: 0 … 6 to 0 … 600 mbar
  • or any other equivalent vacuum or combined pressure; and vacuum zones
• pressure limit (static):
  • Continuous: full scale value
  • Niha: 0.9 x total scale value
• permissible temperature
  • Ambient: -20 °C … +60 °C
  • Medium: ≤ 100 °C
  • + 80 °C (with NS 100 and 160)
• ingress protection according to IEC 60529/EN 60529: IP54
• temperature effect: ko temperature of the measuring system deviates from the reference temperature (+20 °C): max. ± 0.6 %/10 K of the total scale value
• process link:
  • Copper alloy
  • Lower beam (radial) or lower rear beam
  • NS 63: G ¼ B (male), SW 14
  • NS 100, 160: G ½ B (male), SW 22
• pressure element: copper alloy
• Sealing: NBR
• Movement: copper alloy
• Zero point setting: before
• Dial: aluminium, white, black letters
• Pointer: aluminium, black

Areas of use, applications

• for gaseous, dry and non-aggressive media
• robust design and IP54 ingress protection
• medical, vacuum, environmental, laboratory technology for measuring filter contents and monitoring

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

ELPRO designation: MAN-612.20