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Ultra High Purity Pressure Gauge (EP Grade) P820 Series (316L Type Double Melt)
Brand: Wise Control IncP820 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry.
Specifications
Brand
Accuracy
- Grade A (ASME B40.1): 50 (2") & 63 mm (2-1/2")
- Grade B (ASME B40.1): 50 (2") & 63 mm (2-1/2")
Approvals & Certifications
- ATEX Ex II GD C IIC TX
Case
- Typical 304 Stainless Steel, Electro-Polished with Pressure Relief
Cover & Window
- Twist-lock Polycarbonate
Dial
- White Aluminum with Pointer Stop Pin
- With Black/Red Lettering, Dual Pressure Scale (bar/psi)
Element
- < 6 MPa: C-Typical Bourdon Tube
- ≥ 6 MPa: Helical Typical Bourdon Tube
- Typical 316L Stainless Steel
Helium Leak Rate
- Tested to Confirm Leakage Rates of less than 10 Mbar • L/sec
Movement
- Stainless Steel
Nominal Diameter
- 50 (2") & 63 mm (2-1/2")
Pointer
- Black Painted Aluminum Alloy
Pressure Connection
- 1/4" NPT Male
- Surface Finish Ra ≤ 0.25 μm
- Typical 316L Stainless Steel Double Melt Electro-Polished Low Mount or Center Back Mount
- VCR Male or Female Face Seal Fitting
Scale Range
- -0.1 ~ 0 to 0 ~ 28 MPa
Temperature Effect
- ± 0.4 % Per 10° C of Full Scale
- Accuracy at Temperature Above & Below the Reference Temperature (20° C) Will be Effected by Approximately
Working Pressure
- Steady Pressure: 75 % of Full Scale Value
- Fluctuating Pressure: 67 % of Full Scale Value
Working Temperature
- Fluid: Max.
- Ambient: -40° to 65° C