ĐỒNG HỒ ĐO ÁP SUẤT WIKA 612.20

Design: EN 837-3
Nominal size in mm: 63, 100, 160
Accuracy class: 1.6
Scale ranges: 
      NS 63: 0 ... 25 mbar to 0 ... 600 mbar
      NS 100: 0 ... 10 mbar to 0 ... 600 mbar
      NS 160: 0 ... 6 mbar to 0 ... 600 mbar
      or all other equivalent vacuum or combined pressure and vacuum ranges
Pressure limitation
      Steady: Full scale value
      Fluctuating: 0.9 x full scale value
Permissible temperature
      Ambient: -20 … +60 °C
      Medium: ≤ 100 °C
      + 80 °C maximum (with NS 100 and 160 back mount)
Temperature effect: When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.6 %/10 K of full scale value
Ingress protection per IEC/EN 60529: IP54
Process connection:
      Copper alloy
      Lower mount (radial) or lower back mount 1)
      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: In front
Dial: Aluminium, white, black lettering
Pointer: Aluminium, black

Case: Stainless steel
Window: Instrument glass
Ring: Bayonet ring, stainless steel
Options
* Other process connection
* Overload or vacuum safety with
* Scale ranges < 40 mbar: 3 x full scale value
* Scale ranges ≥ 40 mbar: 10 x full scale value
* NS 100 and 160: Panel or surface mounting flange
* NS 100 and 160: Triangular profile ring with clamp
* NS 100 and 160: Ingress protection IP65