Agilent/Keysight 432B

The Agilent/Keysight 432B is an automatic, self-balancing digital power meter for precise RF and microwave power measurement. This digital readout instrument operates with temperature-compensated thermistor mounts and delivers measurement capability across a 40 dB dynamic range with selectable full-scale readings of 10 µW, 100 µW, 1 mW, and 10 mW. The 432B features a 3-digit display with 1-digit overrange capability and 20% overrange on all ranges, making it suitable for both bench and automated test environments.

– Technical Specifications

• Power Range: 40 dB dynamic range; full-scale readings at 10 µW, 100 µW, 1 mW, and 10 mW
• Display: 3 digits with 1-digit overrange; 20% overrange capability on all ranges
• Noise: Less than 0.25% of full scale peak (typical)
• Zero Uncertainty: ± one count on all ranges
• Zero Carryover: Less than 0.50% of full scale when zeroed on the most sensitive range
• Response Time: 35 ms time constant at recorder output (typical)
• Calibration Factor Control: 13-position switch normalizing readings from 100% to 88% in 1% steps
• Accuracy: ±0.5% on 100 µW, 1 mW, and 10 mW ranges (20°C to 30°C); ±1.0% on 10 µW range (20°C to 30°C); ±1.5% maximum all ranges (0°C to 55°C). High-accuracy measurement capability reaches ±0.2% ±0.5 µW with precise voltage computation
• Power Consumption: 8 W
• Power Requirements: 115 or 230 VAC ±10%, 50 to 400 Hz
• Recorder Output: 1 V at full scale, 1 kΩ output impedance
• BCD Output: 8, 4, 2, 1 code (TTL compatible) with Print and Inhibit lines
• Dimensions: 130 mm (W) × 155 mm (H) × 279 mm (D)
• Weight: 3 kg (6.5 lb) net; 4.8 kg (10.5 lb) shipping

– Key Features

• Automatic fine zero operation via front-panel switch
• Thermoelectric error minimized to negligible levels on sensitive ranges
• BCD output compatibility with HP 5150A (Opt 002 BCD) Digital Recorder

– Compatibility & Integration

Requires HP 478A, 8478B, or 486 series temperature-compensated thermistor mount (not included). Calibrated mounts provided with calibration factor and effective efficiency data at various frequencies. HP 8477A Calibrator designed for use with HP 432 series.