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Ultra High Purity Pressure Switch P840 Series (316L Type)
Ultra High Purity Pressure Switch P840 Series (316L Type)
Brand: Wise Control IncP840 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry.
Specifications
Brand
Case
- Typical 304 Stainless Steel, Electro-Polished with Pressure Relief
Connection
- 26 AWG, PVC
- 6 feet (2 m)
Cover & Window
- Twist-lock Polycarbonate
Dial
- With Black/Red Lettering, Dual Pressure Scale (bar)
- White PVC, with Pointer Stop Pin
Element
- < 6 MPa: C-Typical Bourdon Tube
- ≥ 6 MPa: Helical Typical Bourdon Tube
- Typical 316L Stainless Steel
Helium Leak Rate
- 10 -9 Mbar • L/sec
- Tested to Confirm Leakage Rates of less than
Maximum Fluid Working Inlet Pressure
- ± 2.0 % of Full Scale
Maximum Power
- 10 W / DC, 12 VA / AC
Maximum Switching Current
- 0.5 Amps AC/DC NonInductive Load
Maximum Switching Voltage
- 28 Vac/dc
Movement
- Stainless Steel
Nominal Diameter
- 50 mm (2")
Pointer
- Black Painted Aluminum Alloy
Pressure Connection
- VCR Male or Female Face Seal Fitting
- 1/4" NPT Male
- Surface Finish Ra ≤ 0.25 μm
- Typical 316L Stainless Steel Electro-Polished Low Mount or Center Back Mount
Scale Range
- 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
- Ambient: -20° to 65° C
- Fluid: Max.
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