The Fluke Ruska 7250 Pressure Controller is a precision instrument for closed-loop pressure control in calibration laboratories and automated test systems. It delivers stable, repeatable pressure generation and measurement across vacuum and positive pressure ranges using interchangeable sensors. The controller combines high-resolution control with NIST-traceable measurement accuracy, programmable ramp and soak sequencing, and multiple communication interfaces for seamless integration into test automation environments.
Technical Specifications
Pressure Control
• Control type: Closed-loop proportional control
• Accuracy: Typically ±0.02% of reading ±0.01% of full scale (varies with sensor and range)
• Stability: ±0.01% of full scale per year
• Resolution: 0.001% of full scale
• Programmable pressure ramps and soak times
• Adjustable PID control loop parameters
• Integrated or external barometric reference for absolute pressure measurement
Pressure Ranges
Multiple ranges available via interchangeable sensors, including vacuum to 100 psi, vacuum to 1000 psi, and vacuum to 5000 psi configurations.
Measurement Accuracy
NIST-referenced accuracy: Typically ±0.01% of reading ±0.005% of full scale (varies with sensor and calibration).
– Key Features
• Backlit LCD front panel display with pressure, setpoint, status, and diagnostics
• Analog outputs: 0–5 VDC and 4–20 mA for pressure, setpoint, and status signals
• Digital outputs for alarms and event triggers
• Power: 100–240 VAC, 50/60 Hz; typical consumption ~100 VA
• Weight: Approximately 30–40 lbs (13.6–18.1 kg)
• 19-inch rack-mount configuration; typical dimensions 5.25 inches (H) × 19 inches (W) × 20 inches (D)
– Compatibility & Integration
IEEE-488 (GPIB), RS-232 serial, and Ethernet (10/100 Base-T) interfaces enable local and remote operation. Standard NPT, BSP, and process connections support diverse instrumentation setups. Front panel keypad allows direct parameter entry and local control.
