Description
Design
- ASME B40.100
Size
- 4½” (115mm)
Accuracy class
- ± 0.25% of span (ASME B40.100 Grade 3A) for pressure range ≤ 600 psi (40 bar)
- ± 0.5% of span (ASME B40.100 Grade 2A) for pressure range > 600 psi and < 2,000 psi (160 bar)
- ± 0.25% of span ( ASME B40.100 Grade 3A) for pressure range ≥ 2,000 psi (160 bar)
Bourdon Tube
- Material: 316 SS
- ≤ 1,000 psi (70 bar): C-shape,
- > 1,000 psi (70 bar): Helical
Movement
- Stainless steel
- Internal stop pin at 1.1 times full scale value
Dial
- White aluminum with black lettering and mirrored band
Pointer
- Black aluminum, micrometer adjustable, with knife edge
Ranges
- Vacuum 30″ Hg
- Pressure from 15 psi (1 bar) to 20,000 psi (1,600 bar) (all ranges not available in 0.25% accuracy) or other equivalent units of pressure or vacuum
Case
- Black fiberglass reinforced thermoplastic (Pocan®) Solid front, blow-out back Turret style case with built in rear mounting lugs)
Standard Scale
- PSI
Window
- Acrylic
Working Range
- Steady: Full scale value
- Fluctuating: 0.9 x full scale value
- Short time: 1.3 x full scale value
Operating temperature
- Ambient: -40°F to +140°F (-40°C to +60°C)
- Medium: max. 212oF (+100oC)
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.
Connection
- Materail: 316 SS
- Lower mount (LM)
- ¼” NPT or ½” NPT limited to wrench flat area with M4 internal tap
Weather Protection
- Weather resistant (NEMA 3 / IP 54)
Window Gasket
- Buna-N
Other
- Supplied standard with calibration test report
