HP 4284A - Page 337

Signal Level
Mode Range Setting Accuracy
Voltage Non-constant 5mV
rms
to 2 V
rms
6 (10% + 1 mV
rms
)
Constant
1
10 mV
rms
to 1 V
rms
6 (6% + 1 mV
rms
)
Current Non-constant 50  A
rms
to 20 mA
rms
6 (10% + 10  A
rms
)
Constant
1
100  A
rms
to 10 mA
rms
6 (6% + 10  A
rms
)
1 Automatic Level Control Function is set to ON.
Output Impedance
100 , 6 3%
Test Signal Level Monitor
Mode Range Accuracy
Voltage
1
5mV
rms
to 2 V
rms
6 (3% of reading + 0.5 mV
rms
)
0.01 mV
rms
to 5 mV
rms
6 (11% of reading + 0.1 mV
rms
)
Current
2
50  A
rms
to 20 mA
rms
6 (3% of reading + 5  A
rms
)
0.001  A
rms
to 50  A
rms
6 (11% of reading + 1  A
rms
)
1 Add the impedance measurement accuracy [%] to the v
oltage level monitor
accuracy when the DUT's impedance is < 100 .
2 Add the impedance measurement accuracy [%] to the current level monitor
accuracy when the DUT's impedance is  100 .
Accuracies apply when test cable length is 0 m or 1 m. additional
error when test cable length is 2 m or 4 m is giv
en as:
f
m
2
L
2
[%]
Where, f
m
is test frequency [MHz],
L is test cable length [m].
Example DUT's imp edance : 50 
Test signal level : 0.1 V
rms
Measurement accuracy : 0.1 %
Then, Voltage level monitor accuracy is
6 (3.1 % of reading+0.5 mV
rms
)
9-4 General Information