Agilent / Varian BA2 senTorr Vacuum Gauge Controller

The Agilent/Varian BA2 senTorr Vacuum Gauge Controller is a half-rack instrument engineered for continuous pressure measurement across rough to high vacuum ranges. This controller delivers precise monitoring and control of multi-gauge vacuum systems with individual LED digital displays per gauge tube, front-panel keypad operation, and configurable set points. Factory-selectable tube configurations accommodate diverse vacuum applications, from standard systems to ultra-high vacuum environments.

– Technical Specifications

Measurement & Display
• Pressure range: Rough to high vacuum
• Display: One LED digital display per gauge tube
• Set points: Four assignable set points (one assignable to any of three gauge tubes)

Gauge Tube Configurations
Factory-configurable to BA2, BA2C, CC2, CC2C, BA, CC, UHV, or UHV2c. The BA2 configuration includes two thermocouple gauges and one Bayard-Alpert gauge tube.

Electrical
• Input voltage: 90–127 VAC or 208–250 VAC, selectable, 50/60 Hz
• Gauge supply: +24 V (dc) ±5% with <±1% ripple, 0–1 A per channel, 25 W per channel
• Fuse protection: 1.5 A per channel with self-resetting PTC element
• High voltage: Up to 3000 V present in equipment

Data Retention
Parameter values retained for four years accumulated off-time during power loss.

Environmental
Meets specifications at 25°C (±5°C) and 90% relative humidity, non-condensing.

Physical
• Dimensions: 3.5" H × 8.0" W × 15" D (half-rack mount)
• Includes 6-foot power cord and fuse set
• Optional rack-mounting kits available for 19-inch standard racks

– Key Features

• User-friendly front panel with keypad lockout capability
• Optional RS232 or RS485/422 serial communication boards
• Analog outputs and remote control options on rear panel
• Resistive 12 Ω degas for Bayard-Alpert models; E-beam degas for UHV models
• Vacuum system grounding support rated for minimum 10 A

– Typical Applications

Process monitoring and control in vacuum deposition, outgassing analysis, leak detection, and ultra-high vacuum research environments requiring multi-point pressure surveillance.

– Compatibility & Integration

Integrates with Agilent/Varian gauge tube families and supports legacy BA and CC configurations alongside modern UHV platforms. Optional communication boards enable integration into SCADA and networked laboratory control systems.