Design
EN 837-1 & ASME B40.100

Bourdon Tube
Material: Copper alloy
15 psi to 600 psi: C-type
800 psi to 6,000 psi: helical

Sizes
1½” & 2” (40 & 50 mm)

Movement
Copper alloy

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

Dial
White ABS with stop pin and black lettering

Ranges
Vacuum / Compound to 200 psi
Pressure from 15 psi to 6,000 psi
or other equivalent units of pressure or vacuum

Pointer
Black ABS

Working pressure
Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: full scale value

Case
Black ABS with integral profile ring

Operating temperature
Ambient: -40°F to 140°F (-40°C to 60°C)
Media: 140°F (+60°C) maximum

Window
Snap-in acrylic

Temperature error
Additional error when temperature changes
from reference temperature of 68°F (20°C)
+0.4% for every 18°F (10°C)rising or falling. Percentage of span.

U-clamp bracket
Zinc-plated steel with two zinc-plated slotted screws

Connection
Material: Copper alloy
1/8“ or 1/4“ NPT center back mount (CBM)