Wavetek 750

The Wavetek 750 is a precision phase meter that measures the phase angle between two AC signals with ±0.1° accuracy across 10 Hz to 2 MHz. This bench instrument accepts input amplitudes from 1 mV to 300 V RMS with an amplitude ratio capability up to 1004:1, eliminating the need for manual amplitude matching. A unique circuit design ensures accurate phase readings even with significant even harmonic distortion present.

– Technical Specifications

• Frequency Range: 10 Hz to 2 MHz
• Input Signal Amplitude: 1 mV to 300 V RMS (dual-range inputs: 1 mV–2 V on INPUT A; 300 mV–300 V on INPUT B)
• Amplitude Ratio Capability: Up to 1004:1
• Phase Angle Accuracy: ±0.1°
• Display: 4-digit readout in degrees and tenths of degrees
• Display Ranges: 0°–360° or -180°–+180° (selectable)
• Input Configuration: High impedance differential inputs (BNC connectors)
• Analog Output: -10 mV/degree for external recording or control applications
• Power Supply: 105–130 Vac or 200–250 Vac, 50–400 Hz, single phase (rear panel selectable)
• Power Consumption: Less than 25 W
• Operating Temperature: 0°C to 50°C
• Dimensions: 8.5″ W × 5.25″ H × 10.75″ D (21.6 × 13.3 × 27.3 cm)
• Weight: 11 lb net (5 kg)

– Key Features

• Automatic operation—no amplitude balancing, frequency tuning, or output filtering required
• High impedance differential inputs accommodate low-level and high-voltage signals without external conditioning
• Dual display ranges simplify phase relationship analysis across different measurement contexts
• -10 mV/degree analog output enables integration with data acquisition systems and automated controls
• User-replaceable fuse with voltage-dependent rating
• Calibration check via front-panel switch

– Typical Applications

• Power factor and phase shift analysis in AC circuits
• Two-signal phase relationship measurement in test and validation
• Control system feedback for phase-dependent processes
• Harmonic distortion tolerance testing

– Compatibility & Integration

Dual-range inputs and selectable display modes support flexible measurement setups. Analog output (-10 mV/degree) permits direct connection to strip-chart recorders, data loggers, and PLC inputs. Worldwide voltage operation (105–130 Vac or 200–250 Vac) via rear-panel switch accommodates different lab and field environments.