Description
Design
ASME B40.100
Sizes
4½” & 6” (115 & 160 mm) dial size
Accuracy class
± 0.5% of span (ASME B40.100 Grade 2A)
Ranges
Vacuum / Compound to 200 psi (16 bar) Pressure from 15 psi (1 bar) to 15,000 psi (1,000 bar) or other equivalent units of pressure or vacuum
Working pressure
Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.5 x full scale value
Operating temperature
Ambient: -40°F to +150°F(-40°C to +65°C) dry -4°F to +150°F(-20°C to +65°C) glycerine filled -40°F to +150°F(-40°C to +65°C) silicone filled Medium: max. +212°F (+100°C)
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.
Weather protection
Weather resistant (NEMA 3 / IP54)-without membrane Weather tight (NEMA 4X / IP66)-dry case or filled case with membrane installed
Pressure connection
Material: Monel® M400 Lower mount (LM) or lower back mount (LBM) 1/4” or 1/2” NPT with M4 internal tap
Restrictor
Material: Monel® (0.6 mm)
Bourdon tube
Material: Monel® M400 ≤1,000 PSI (70 bar): C-shape, >1,000 PSI (70 bar): Helical
Movement
Stainless steel
Internal overload stop set at 1.1x full scale
Underload stop-optional
Dampened movement-optional
Dial
White aluminum with black lettering, stop pin at 6 o’clock
Standard WIKA psi single scales (4½” only) with large figures at beginning & end for quick and easy range identification