The North Atlantic 2250 is a microprocessor-based Phase Angle Voltmeter (PAV) engineered for precision AC measurements across defense, commercial aerospace, and industrial sectors. Built on Fast-Fourier Transform techniques, it integrates network and waveform analyzer capabilities into a digital voltmeter platform. The dual-channel design with isolated inputs enables phase angle, voltage, ratio, harmonic, impedance, power, and frequency measurements with NIST-traceable accuracy. A sensitive analog null meter supports precise nulling operations, while reference phase offset enables bridging measurements. The 2250 excels in Synchro/Resolver and LVDT/RVDT transducer testing and characterization.
Note: Model 2250 is obsolete; Model 2250A is the recommended replacement.
Technical Specifications
• Phase Angle Accuracy: ±0.05° (NIST traceable)
• Ratio Accuracy: ±0.05° (NIST traceable)
• Frequency Response: 10 Hz to 100 kHz
• Voltage Measurement Range: 20 mV to 500 V full scale (six ranges)
• Voltage Resolution: 4½ digits
• Phase Angle Resolution: 0.01°
• Frequency Display Resolution: 3 digits
• Reference Input Range: 2 mV to 300 Vrms
• Signal Input Impedance: 1 MΩ (minimum)
• Reference Input Impedance: 1 MΩ (minimum)
– Key Features
• Dual isolated input channels for null, ratio, and gain measurements
• Phase-sensitive and voltage ratio modes
• Harmonic analysis with magnitude and phase of selected harmonics
• Total Harmonic Distortion measurement
• Percent deviation from nominal value
• Magnitude in dB relative to reference input
• Sensitive analog null meter for precision nulling
• Rack-mountable and bench-top form factors
– Measurement Capabilities
• Total, fundamental, in-phase, and quadrature voltage
• Phase angle and frequency
• Impedance and power
• Harmonic content and THD
• LVDT/RVDT transducer measurements
• Synchro/Resolver testing
– Compatibility & Integration
• IEEE-488 (GPIB)
• USB
• Ethernet
• Independent front and rear panel connectors
