Agilent 432A
Analog Power Meters

Power Range: 7 ranges with full-scale readings of 10, 30 100 and 300 µW 1, 3 and 10 mW; also calibrated in dBm from -20 dBm to +10 dBm full scale in 5 dB steps
Noise: Less than 0.25% of full scale peak (typical)
Response Time: At recorder output, 35 ms time constant (typical)
Fine Zero: Automatic, operated by front-panel switch
Zero Carryover: Less than 0.50% of full scale when zeroed on most sensitive range
Meter: Taut-band suspension, individually calibrated, mirror-backed scales. Milliwatt scale more than 100 mm (4.25 in) long
Calibration Factor Control: 13-position switch normalizes meter reading to account for thermistor sensor calibration factor. Range 100% to 88% in 1% steps
Thermistor Sensor: Thermistor sensors are required for operation of the 432A.
Power Consumption: 115 to 230 Vac ± 10%, 50 to 400 Hz, 1.5 watts
No thermoelectric error for high accuracy over a wide dynamic range
Optional long cables for measurment convenience
1 year standard warranty

Agilent 432A Shown

Product Information
Manual	5.8 MB
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Agilent 432A power meter is an automatic, self-balancing power meter for use with temperature compensated thermistor sensors. High efficiency and good radio frequency (RF) match are characteristics of the 478A and 8478B coaxial and 486 series (now discontinued) waveguide thermistor mounts that cover the frequency range 10 MHz to 40 GHz. Each thermistor mount contains data showing the calibration factor and effective efficiency at six frequencies, directly traceable to the U.S. National Institute of Standards and Technology (NIST) at those frequencies where NIST provides calibration service.

Agilent 432A provides high accuracy over a wide temperature range. By measuring the output voltage of the Thermistor bridges and computing the corresponding power, even higher accuracy of ±0.2 percent ±0.5 micro W can be obtained. Accuracy can be maintained on even the most sensitive range because the error due to thermoelectric effect is reduced to a negligible level.

Ordering Information
Model	Description	Buy Online	Price
432A	Agilent 432A Analog Power Meter		$12,708.00
Refurbished Unit Available
432AU	Agilent 432A Analog Power Meter, Refurbished Meter does not include sensor cable.		$375.00
Options for the 432A
Note: Any internal options must be ordered along with the main unit at time of purchase.
432A002	Agilent 432A-002: Add Parallel front and Rear Sensor Input		$32.24
432A003	Agilent 432A-003: Add Sensor Input Connector (on rear panel only)		$32.24
432A009	Agilent 432A-009: Add Power sensor cable, Length: 10ft (3m)		$73.84
432A010	Agilent 432A-010: Add Power sensor cable, Length: 20ft (6.1m)		$114.00
432A011	Agilent 432A-011: Add Power sensor cable, Length: 50ft (15.2m)		$159.00
432A012	Agilent 432A-012: Add Power sensor cable, Length: 100ft (30.5m)		$238.00
432A910	Agilent 432A-910: Add Extra Operating and Service Manual Set		$20.80
8477a and Options
Note: Any internal options must be ordered along with the main unit at time of purchase.
8477A	Agilent 8477A - Range Calibrator (for the 432A power meter)		$8,952.00
8477A910	Agilent 8477A-910: Add Range Calibrator Operating Manual		$20.80
8478b and Options
Note: Any internal options must be ordered along with the main unit at time of purchase.
8478B	Agilent 8478B - Coaxial Thermistor Mount		$2,103.00
8478BH01	Agilent 8478B-H01: Add VSWR at or less than 1.05 at 50MHz		$476.00
8478BH43	Agilent 8478B-H43: Add Best SWR from Batch, 1 GHz to 18 GHz		$1,574.00
8478BH48	Agilent 8478B-H48: Add Improved VSWR Option		$1,040.00
8478BH84	Agilent 8478B-H84: Add Standard Laboratory Calibration		$1,469.00
8478BH86	Agilent 8478B-H86: Add Standard Laboratory Calibration with Best Available VSWR		$1,959.00

Agilent 432AAnalog Power Meters

Agilent 432A
Analog Power Meters