WIKA - Model 111.12 -Bourdon Tube Pressure Gauge

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")