Agilent Hewlett Packard 59822B Ionization Gauge Controller

The Agilent (Hewlett Packard) 59822B Ionization Gauge Controller is a precision instrument engineered for ultra-high vacuum (UHV) measurement. Purpose-built to operate Bayard–Alpert ionization gauges, it accurately converts tiny ion currents into dependable pressure readings, making it indispensable in laboratories, semiconductor manufacturing, surface science, cryogenics, and advanced research facilities where reliable vacuum measurement is critical.

At HiTechTrader, we make this industry-trusted controller more accessible by offering carefully tested, pre-owned and refurbished units at a fraction of the cost of new systems. The Agilent HP 59822B provides vacuum measurement across a wide range, from 1×10⁻³ to 2×10⁻¹⁰ Torr, while supporting dual filament operation, integrated degassing, and analog outputs for seamless data logging and system integration. Its built-in safety protections, filament current limiting, and long service life make it a reliable choice for demanding UHV applications. Whether you're working with deposition chambers in semiconductor fabs, maintaining particle accelerator vacuum systems, or running advanced surface science experiments, this controller delivers proven accuracy and consistent performance.

Instrument and Construction

1. Model: Agilent / Hewlett Packard 59822B
2. Design Purpose: Provides filament power, grid voltage, and current measurement for ionization gauges
3. Compatible Gauges: Agilent 572 and other Bayard–Alpert dual filament designs
4. Operation Modes: Manual and automatic modes for flexible control of vacuum measurements

Operating Parameters

1. Input Voltage: 90–125 VAC, 50/60 Hz
2. Power Consumption: ~140 W typical
3. Vacuum Measurement Range: 1×10⁻³ to 2×10⁻¹⁰ Torr
4. Grid Voltage: ~+180 V DC
5. Filament Voltage: Up to ~6 VAC
6. Analog Output: Provides proportional pressure signal for integration with external systems

Functional Features

1. Dual Filament Support: Switch between filaments without breaking vacuum
2. Degassing Function: Removes residual gas and contaminants via resistance heating
3. High Sensitivity: Accurate measurement at extremely low pressures with minimized X-ray effects
4. Filament Protection: Current limiting safeguards against grid/filament damage
5. Flexible Mounting: Operates reliably in both vertical and horizontal configurations

Safety and Compliance

1. Requires proper grounding of gauge tube, system, and chassis
2. Integrated protection against overcurrent and high-voltage hazards
3. Operate only within established vacuum laboratory safety protocols

Applications

1. Vacuum Monitoring: Real-time UHV system diagnostics
2. Semiconductor Manufacturing: Essential for deposition, etching, and lithography equipment
3. Surface Science: Maintains ultra-clean environments for precise analysis
4. Scientific Research: Widely used in cryogenics, particle physics, and accelerator facilities
5. System Maintenance: Detects leaks, contamination, and pressure fluctuations

Advantages

1. Reliable pressure measurement in the UHV range
2. Dual filament design extends operational lifetime
3. Integrated degassing for long-term accuracy
4. Analog output for seamless data acquisition
5. Proven durability in both research and industrial environments

Why Buy from HiTechTrader?

HiTechTrader provides cost-effective access to advanced vacuum measurement systems like the Agilent HP 59822B Ionization Gauge Controller. Every unit is inspected for electrical integrity, calibration accuracy, and safety compliance before delivery. By choosing HiTechTrader, you gain a trusted, refurbished instrument backed by decades of experience and a team dedicated to ensuring your vacuum systems perform at their best, without the high cost of new equipment.