N432A Agilent Thermistor Power Meter

Overview and Features

The N432A thermistor power meter is an automatic, self-balancing power meter for use with temperature-compensated thermistor mount sensors. The N432A replaces the legacy 432A analog power meter, with enhanced performance and features.

Keysight N432A is the replacement for Keysight’s legacy 432A analog thermistor power meter. The single-channel, average RF power meter operates with the Keysight 8478B and 478A thermistor mounts. The N432A-and-thermistor-mount pair is ideal for applications that require high measurement accuracy, particularly in metrology and calibration laboratory environments. The enhanced thermistor power meter comes with a digital color LCD, and a user-friendly front panel interface. Its built-in calibration factor table provides a more convenient and accurate method of storing calibration factors as compared to the old knob-turning approach of the 432A. The N432A is LXI compliant and programmable via GPIB, USB, and LAN.

● Frequency range: 100 kHz to 18 GHz (sensor dependent)

● Dynamic range: -30 dBm to +10 dBm

● High Accuracy (≤ 0.1% ± 0.5 uW), excellent for 1 mW transfer calibration (with 478A-H75/H76)

● Built-in 6.5 digits ADC eliminates the need for external DMM

● Selectable bridge resistance (100/200/300/400 Ω)

● Remote interface flexibility (GPIB, USB, LXI-C)

● Digital color LCD display