Specifications: The document outlines specifications for U.S. Gauge 3” test gauges, which are designed for high accuracy and rugged construction. The gauges are available in chrome-plated brass (Series 508/1408) and ABS chrome-plated (Series 1409) designs. Key specifications include:
- Dial Size: 3 inches
- Case Material: Brass with polished chrome finish or ABS with chrome plating
- Window Material: Polycarbonate
- Pointer: Knife-edged, black, adjustable
- Pressure Element: Diaphragm (Ni-Span-C) or Bourdon Tube (Phosphor bronze or Beryllium copper)
- Connection: 1/4-18 ANPT low mount, brass
- Accuracy: ±0.5% of span for 0 to 1000 psi, ±1% for 0 to 5000 psi
Description:
The U.S. Gauge 3” test gauges are portable instruments suitable for field and production testing applications. They feature a knife-edged adjustable pointer for improved viewing and simplified calibration. The gauges offer a wide range of pressure measurements from 30” Hg vacuum to 5000 psi.
Standard Ranges:
The document provides a detailed table of standard pressure ranges and intervals for models 508, 1408, and 1409, with pressure ranges specified in psi unless otherwise indicated.
Model Specifications:
The document includes a specification number selection chart for different pressure ranges and optional protective caps for each model.
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