- 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
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Agilent 432A Shown
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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. |
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