ĐỒNG HỒ ĐO ÁP SUẤT WIKA 233.30 type 4.5"

Design: ASME B40.100
Sizes: 4 1/2” (115 mm)
Accuracy class: ± 0.5% of span (ASME B40.100 Grade 2A)
Ranges:
      Vacuum / Compound to 200 psi (16 bar)
      Pressure from 0/15 psi (1 bar) to 0/15,000 psi (1000 bar)
Working pressure:
      Steady: full-scale value
      Fluctuating: 0.9x full-scale value
      Short time: 1.3x full-scale value
Operating temperature:
Ambient:

      -40°F to +140°F (-40°C to +60°C) - dry
      -4°F to +140°F (-20°C to +60°C) - glycerine-filled
      -40°F to +140°F (-40°C to +60°C) - silicone-filled
Medium:

      +392°F (+200°C) maximum - dry
      +212°F (+100°C) maximum - liquid-filled
Temperature error: Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F (10°K) rising or falling.
Weather protection: Weather tight (NEMA 4X / IP65)
Pressure connection Material: 316L stainless steel
      Lower mount (LM)
      1/2” NPT or 1/2” NPT limited to wrench flat area
Bourdon tube Material: 316L stainless steel
      < 1,500 psi (100 bar): C-shape
      > 1,500 psi (100 bar): Helical
Movement: Stainless steel
Dial: White aluminum with black lettering and stop pin at 6 o'clock
Pointer: Black aluminum, adjustable

Case: 
      316L stainless steel with solid baffle wall and blowout back (safety case)
      For pressure ranges < 300 psi, case has a compensating valve/fill plug to vent case pressure
Window: Safety Glass with Buna-N gasket
Bezel ring: 316L stainless steel, bayonet-type
Case fill: Glycerine 99.7% - Type 233.30 (LM only)
Optional extras:
* Other pressure connections
* Restrictor for high dynamic pressure pulsations
* Mounting lugs for wall mounting*
* Silicone or Halocarbon oil case filling (LM only)
* Red drag pointer or mark pointer
* Acrylic (PMMA) window
* Custom dial layout
* InSightTM reflective dial options available with white, fluorescent yellow, fluorescent orange or glow-in-the-dark dial backgrounds
* Other pressure scales available: bar, kPa, MPa, kg/cm² and dual scales