Design
EN 837-1 & ASME B40.100

Sizes (All sizes not stocked)
1½\”, 2\”, 2½\” and 4\” (40, 50, 63, and 100 mm)
3½\” (94 mm) with u-clamp only

Accuracy class
+ 3/2/3% of span (ASME B40.100 Grade B)

Ranges (All ranges not stocked)
Vacuum/Compound to 30\”Hg (-1 bar) / 0 / 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 6,000 psi (400 bar)
or other equivalent units of pressure or vacuum
Receiver scales 3…15 psi (0.2…1 bar)

Working pressure
Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short: 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: copper alloy
Center back mount (CBM)
1/8\” or 1/4\” NPT

Bourdon Tube
Material: copper alloy
≤ 870 psi (60 bar): C-shape
> 870 psi (60 bar): Helical

Movement
Copper alloy

Dial
White plastic with stop pin (1½\”, 2\”, 2½\”)
White aluminum with stop pin (3½\” & 4\”)
Black or black and red lettering

Pointer
Black ABS plastic (1½\”, 2\”, 2½\”)
Black aluminum (3½\” & 4\”)

Case
Black ABS plastic
(3½\” with black-painted steel)

Window
Snap-in acrylic ( 1½\”, 2\”, 2½\”, & 4\”)
Threaded polycarbonate (3½\”)