The Fluke Ruska 7252i Dual Channel Pressure Controller is a high-precision instrument for automated pressure calibration and testing with independent control and measurement across two separate pressure ranges. Dual independent channels enable simultaneous operation, significantly improving calibration workflow efficiency. The instrument employs force-balanced, fused-quartz Bourdon tube sensor technology to deliver stable, low-hysteresis pressure measurement.
– Technical Specifications
Pressure Measurement & Ranges
• 7252i Precision: 0.005% of Reading from 25% to 100% of range; 0.005% of the 25% value below 25% of range
• Stability: 0.0075% of Reading over one year
• Selectable range combinations from 10 inH2O (25 mbar) to 2500 psi (172 bar)
• Permanent absolute ranges up to 50 psia (4 bar)
• Full Scale ranges from 5 to 2500 psig (400 mbar to 172 barg)
Control Performance
• Time to setpoint: < 15 seconds with no overshoot
• Control stability: 0.001% FS
• Slew rate: < 20 seconds for 10% FS increments into 15 cubic inch volume
• Simultaneous dual-channel pressure control with independent test ports
Measurement Units
Over fifteen standard units including psi, bar, kPa, inH2O, inHg, mmHg, kg/cm², plus two user-defined units
Calibration & Compliance
• NIST traceable calibration with 9-point characterization for 7252i sensors
• ATEX II 1G Ex ia IIC T4 Compliant
– Key Features
• Dual-channel, dual output architecture
• Pressure switch test function
• Min-Max Hold functions
• Force-balanced fused-quartz sensor technology
– Typical Applications
Automated pressure calibration workflows, dual-range simultaneous testing, pressure switch validation, and high-throughput calibration environments requiring independent channel operation.
– Compatibility & Integration
RS-232 and IEEE-488 interfaces with SCPI protocol support. MET/CAL driver and LabVIEW driver (free download) available. Firmware updates supported. Power: 100-120 VAC / 220-240 VAC, 50/60 Hz, 150 VA.
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