Bourdon tube pressure gauges
Ultra high purity (UHP) series
Applications
- Semiconductor and electronic industry, medical industry, gene technology, biotechnology and pharmaceutical industries.
- Suitable for corrosive environments and gaseous or liquid media that will not obstruct the pressure system
- Where measurement of high purity gases is needed without contamination of the process media.
Special Features
- 316L wetted parts
- Electro-polished SS case & face-seal connection
- Positive and compound pressure ranges to 10,000 psi
Standard Features
Design
ASME B40.100
Sizes
2" (50 mm)
1 ½" (40 mm)
Accuracy Class
2": ± 2/1/2% of span (ASME B40.100 Grade A) 1 ½": ± 3/2/3% of span (ASME B40.100 Grade B)
Ranges
Vacuum / compound to 30"Hg/0/300 psi Pressure from 15 psi up to 5000 psi or other equivalent units of pressure or vacuum
Working Pressure
Steady: ¾ full-scale value Fluctuating: 2/3 full-scale value Short time: full-scale value
Operating Temperature
Ambient: -40°F to +140°F (-40°C to +60°C) Medium: +212°F (+100°C) maximum
Weather Protection
Weather resistant (NEMA 3 / IP 54)
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: Face-seal nut, 316 SS
Face-seal gland, 316L SS
Position: Lower mount (LM)
Center back mount (CBM)
Type of Connection: Face-seal fixed male
Swivel male or female
Wetted Surface Finish: Ra < 0.25μm (Ra < 10μinch)-internal
Bourdon Tube
Material: 316L SS
30”Hg (vac) to 1,000 psi, C-type
1,500 to 5000 psi, helical type
Helium leak tested 1 x 10-9 scc/sec (inboard)
Socket
Material: 316L SS
Ra < 0.5μm (Ra < 20μinch) - internal
Movement
Stainless steel
Dial
White aluminum with stop pin and black lettering
Pointer
Black aluminum
Case
304 SS, electropolished
Window
Polycarbonate: twist-lock (2"); snap cap (1½")
