Design ASME B40.100

Bourdon tube Material: copper alloy C-type

Sizes 4½” (124 mm)

Movement Copper alloy

Accuracy class ± 1% of span (ASME B40.100 Grade 1A)

Dial White aluminum with stop pin and black lettering

Ranges Vacuum / Compound to 200 psi Pressure from 15 psi to 600 psi or other equivalent units of pressure or vacuum

Pointer Black aluminum, adjustable

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

Case Stainless steel, matte finish

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.

Pressure connection Material: Copper alloy 1/8“ or 1/4“ NPT lower mount (LM)

HVAC

Suitable for all media that will not obstruct the pressuresystem or attack copper alloy parts