Model 230.25w/851.3 Bourdon Tube Pressure Gauge with electrical output signal Ultra High Purity (UHP) Series

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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

  • Electrical contact with up to 2 Reed Switches
  • Field configurable
  • 316L SS wetted parts
  • Electro-polished stainless steel case & face-seal connection
  • Positive and compound pressure ranges to 5000 psi

Standard Features

Design
ASME B40.100

Size
2″ (50 mm)

Accuracy Class
Gauge: ± 2/1/2% of span (ASME B40.100 Grade A)

Switch: ± 5% of span at Switch Point

Ranges
Vacuum / compound to 30″Hg/0/300 psi 

Pressure from 60 psi up to 5000 psi or other equivalent units of pressure or vacuum 60 psi minimum span

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

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.

Weather Protection
Weather resistant (NEMA 3 / IP 54)

Pressure Connection
Material: Face-seal nut, 316 SS 

               Face-seal gland 316L SS VOD or VIM/VAR 
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)

Bourdon Tube
Material: 316L SS 

30″Hg (vac) to 5,000 psi, C-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

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