The Varian 525 Cold Cathode Vacuum Gauge is a high-performance ionization gauge designed for accurate and reliable vacuum pressure measurements in high-vacuum environments. With its cold cathode (Penning) technology, it provides precise pressure readings without the need for a heated filament, making it ideal for ultra-high vacuum (UHV) systems.
Key Features & Benefits:
✔ Cold Cathode Technology
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No hot filament, ensuring a long lifespan and minimal contamination
✔ Wide Measurement Range
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Capable of measuring vacuum levels from 10⁻⁷ to 10⁻³ Torr
✔ Compact & Durable Design
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1 1/2-inch size, ideal for tight installation spaces
✔ Minimal Maintenance Required
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No filament to burn out, reducing operational downtime
✔ Corrosion-Resistant Construction
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Designed for harsh environments and laboratory settings
✔ Compatible with Varian Controllers
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Works seamlessly with Varian vacuum gauge controllers for accurate readings
Technical Specifications:
| Parameter | Value |
|---|---|
| Measurement Range | 10⁻⁷ to 10⁻³ Torr |
| Gauge Type | Cold Cathode (Penning Discharge) |
| Flange Size | 1 1/2 Inch |
| Material | Stainless Steel |
| Application | Ultra-High Vacuum (UHV) Systems |
| Maintenance | Low |
| Power Requirement | Requires Compatible Varian Controller |
Applications & Use Cases:
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Vacuum Coating & Thin Film Deposition – Used in semiconductor manufacturing and optics
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Scientific Research & Laboratories – Reliable pressure monitoring in high-vacuum experiments
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Particle Accelerators & Fusion Research – Essential for UHV conditions in physics experiments
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Industrial Vacuum Systems – Ideal for leak detection, vacuum chambers, and cryogenics
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Aerospace & Space Simulation – Accurate vacuum measurement for satellite testing
Why Choose the Varian 525 Cold Cathode Vacuum Gauge?
✔ Proven Reliability – Trusted in scientific, industrial, and aerospace applications
✔ No Filament = Longer Life – No burnouts, reducing replacement costs
✔ Compact & Durable – Stainless steel construction for harsh environments
✔ Wide Pressure Range – Covers UHV down to 10⁻⁷ Torr
✔ Seamless Integration – Works with Varian control units






