Design
EN837-1 and ASME B40.100
Sizes
2", 2½" and 4" (50, 63, and 100 mm)
Accuracy class
+3/2/3% of span (ASME B40.100 Grade B)
Ranges (All ranges not stocked)
Vacuum/Compound to 30" Hg (-1 bar) / 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 600 psi (40 bar) or other equivalent units of pressure or vacuum (Drinking water applications typically do not exceed 300 psi/20 bar)
Working pressure
Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: full scale value
Operating temperature
Ambient: -40°F to 140°F (-40°C to 60°C)
Media: 140°F (+60°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.
Pressure connection
Material: Lead-free copper alloy (lead content ≤0.25%)
Lower mount (LM)
1/4" NPT
Bourdon Tube
Material: Lead-free copper alloy
C-shape
Solder
No-lead solder
Movement
Copper alloy
Dial
White plastic with stop pin (2", 2½")
White aluminum with stop pin (4")
Pointer
Black ABS plastic (2", 2½" LM)
Black aluminum (4" LM)
Case
Black plastic
Window
Clear plastic, snap-fit