130 Agilent U1251B/U1252B User’s and Service Guide
6 Performance Tests and Calibration
Step Test Function Range 5520A Output
Error from nominal 1 year
U1251B U1252B
8 Turn the rotary switch to the W
position
500 W 500 W ± 500 mW
[3]
± 350 mW
[3]
5 kW 5 kW ± 4.5 W
[3]
± 3 W
[3]
50 kW 50 kW ± 45 W ± 30 W
500 kW 500 kW ± 450 W ± 300 W
5 MW 5 MW ± 10.5 kW ± 8 kW
50 MW
[4]
50 MW ± 0.510 MW ± 0.505 MW
500 MW 450 MW N/A ± 36.1 MW
9Press button to go to ns
mode
500 nS
[5]
50 nS ± 0.7 nS ± 0.6 nS
10 Turn the rotary switch to the Hz/
position (for model
U1252B), to position (for
model U1251B)
Diode 1 V ± 1 mV ± 1 mV
33250A Output
11 Press button to go to
frequency counter mode
[6]
999.99 kHz 200 mVrms,
100 kHz
N/A ± 52 Hz
12 Press button to go to
frequency counter mode divide
by 100
99.999 MHz 600 mVrms,
10 MHz
N/A ± 5.2 kHz
5520A Output
13 Turn the rotary switch to the /
position
[7]
10.000 nF 10.000 nF ± 0.108 nF ± 0.108 nF
100.00 nF 100.00 nF ± 1.05 nF ± 1.05 nF
1000.0 nF 1000.0 nF ± 10.5 nF ± 10.5 nF
10.000 μF 10.000 μF ± 0.105 μF ± 0.105 μF
100.00 μF 100.00 μF ± 1.05 μF ± 1.05 μF