ĐỒNG HỒ ĐO ÁP SUẤT WIKA 233.30

Design
ASME B40.100 & EN 837-1
Sizes
2½”, 4” & 6” (63, 100 and 160 mm)
Accuracy class
2½”: ± 2½% of span (ASME B40.100 Grade A)
4” & 6”: ± 1.0% of span (ASME B40.100 Grade 1A)
Ranges
Vacuum / Compound to 200 psi (16 bar)
Pressure from 0/15 (1 bar) to 0/15,000 psi (1000 bar) - 2½” , 4”
Pressure from 0/10 (0.6 bar) to 0/20,000 psi (1600 bar) - 6” or other equivalent units of pressure or vacuum
Working pressure

2½”: Steady: ¾ full-scale value

Fluctuating: 2/3 full-scale value

Short time: full-scale value

4” & 6”: 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-flled
                        -40°F to +140°F (-40°C to +60°C) - silicone-flled
Medium:         +392°F (+200°C) maximum - dry
                        +212°F (+100°C) maximum - liquid-flled

Temperature
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)
Lower back mount (LBM) - for 2½” & 4” size only ¼” NPT or ½” 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; 2½” with stop pin
Pointer
Black aluminum, adjustable
304 stainless steel with solid bafe wall and blowout back (safety case)
Window
Polycarbonate (2½”) and Safety Glass (4” & 6”) with Buna-N gasket)
Bezel ring
Stainless steel, bayonet-type
Case fill
Glycerine 99.7% - Type 233.30

Optional extras
* Other pressure connections
* Restrictors for applications with high dynamic pressure pulsations
* Monel wetted parts (Type 26X.30)
* Front flange, SS (LBM only)
* Mounting lugs for wall mounting
* 316SS case material
* Silicone or Halocarbon oil case flling
* Red drag pointer or mark pointer
* Non-adjustable pointer
* Safety glass window
* Custom dial layout
* Integral alarm contacts or transmitters
* Other pressure scales available: bar, kPa, MPa, kg/cm² and dual scales