| SPECIFICATIONS DIAL SIZE: 3" CASE: 508, 1408: Brass, polished chrome finish; 1409: ABS, chrome plated RING: 508, 1408: Brass, polished chrome, threaded; 1409: ABS, chrome plated COVER (Optional): 508, 1408: Brass, polished chrome finish; 1409: ABS, chrome plated WINDOW: 508, 1408: Polycarbonate; 1409: Polycarbonate POINTER: Knife-edged, black, adjustable DIAL: Steel, white background with black markings. Arc of calibration is 270° on 508. Arc of calibration on 1408 and 1409 is 300° except 0 to 5000 psi range arc is 270° MOVEMENT: Geared with moving parts of dissimilar metals to minimize friction and wear PRESSURE ELEMENT: 508: Diaphragm, Ni-Span-C Bourdon Tube: 1408, 1409 Phosphor bronze: 30 through 1000 psi Beryllium copper: 1500 through 5000 psi CONNECTION: 1/4-18 ANPT low mount, brass ACCURACY: ±0.5% of span in 0 to 30" Hg VAC through 0 to 1000 psi (Grade 2A) ±1% of span in 0 to 1500 psi through 0 to 5000 psi (Grade 1A) |