PRESSURE GAUGE

Design
ASME B40.100 & EN 837-1

Sizes
2”, 2½” & 4” (50, 63 and 100 mm)

Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1.0% of span (ASME B40.100 Grade 1A)

Ranges
Vacuum/compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 15,000 psi (1000 bar)
or other equivalent units of pressure or vacuum

Working pressure
2” & 2½”: Steady: 3/4 scale value
Fluctuating: 2/3 full-scale value
Short time: full-scale value

4 ”: 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) – 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: +212°F (+100°C) maximum

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.