Calibration adjustments (scale shape and linearity) are made from rear of case without removing internals. The pointer is adjusted by removing the front ring and window.
Dial Size: 4 1/2 "
Case and Ring:
For Stem or Wall Mounting -
PHENOLIC TURRET CASE (black) with glass-filled, threaded, polypropylene ring and plastic pressure-relieving back. (Figures 1919, 1929)
Pointer: Knife-edged, micrometer adjustable, black finish.
Dial: Aluminum with white background and black markings.
Movement: Heavy brass "U" frame construction with nickel silver rocker arm on stainless steel pivots. Brass sector and nickel silver pinion operate on brass bearings. Minimum and maximum stops prevent segment and pinion disengagement.
Diaphragm: 1919-NiSpan "C", silver brazed; 1929-316 st. stl., heli-arc welded.
Connection: 1919-Brass; 1929-316 st. stl. 1/2" NPT Standard (1/4" NPT optional)
Accuracy: ± 1% of span (Grade A).
AMETEK U.S. Gauge Division, 900 Clymer Ave., Sellersville, PA 18960. Tel: 215-257-6531; Fax: 215-257-3058.