Agilent Technologies 4288A User Manual

214 Appendix B
Information for Replacing 4278A with 4288A
Functional Comparison and GPIB Command Correspondence
Measurement range
Functional comparison
The following table shows the allowable measurement ranges for the 4278A and the
4288A.
At the measurement frequency of 1 kHz, the 4288A provides almost perfect upward
compatibility with the 4278A. The measurement ranges that can be set for the 4278A,
except for the 100
µF range, can also be set for the 4288A. If you select only these
measurement ranges, the 4288A provides the same level of accuracy as the 4278A.
However, it is recommended that you select the most appropriate measurement range for
high-accuracy measurement.
At the measurement frequency of 1 MHz, the 4288A provides almost no compatibility with
the 4278A, so you cannot specify the same measurement ranges except for the 1 pF range.
Differences in usage of GPIB commands
Measurement frequency: 1 kHz Measurement frequency: 1 MHz
4278A 4288A 4278A 4288A
Range
Output
resistance
Range
Output
resistance
Range
Output
resistance
Range
Output
resistance
100 pF 100
Ω 100 pF 20 Ω 1 pF 20 Ω 1 pF 20 Ω
220 pF 20 Ω 2 pF 20 Ω
470 pF 20 Ω 2.2 pF 20 Ω
1 nF 100 Ω 1 nF 20 Ω 4 pF 20 Ω
2.2 nF 20 Ω 4.7 pF 20 Ω
4.7 nF 20 Ω 8 pF 20 Ω
10 nF 100 Ω 10 nF 20 Ω 10 pF 20 Ω
22 nF 20 Ω 16 pF 20 Ω
47 nF 20 Ω 22 pF 20 Ω
100 nF 20 Ω 100 nF 20 Ω 32 pF 20 Ω
220 nF 1.2 Ω 47 pF 20 Ω
470 nF 1.2 Ω 64 pF 20 Ω
1 µF1.2 Ω 1 µF1.2 Ω 100 pF 20 Ω
2.2 µF1.2 Ω 128 pF 20 Ω
4.7 µF1.2 Ω 220 pF 20 Ω
10 µF1.2 Ω 10 µF1.2 Ω 256 pF 20 Ω
470 pF 20 Ω
512 pF 20 Ω
100 µF20 Ω 1 nF 20 Ω
1024 pF 20 Ω
4278A 4288A
Correspondence
between the
measurement
frequency and the
measurement range
Measurement range is set for both 1 kHz
and 1 MHz frequencies. Different setup
commands are provided for each allowable
measurement range at both 1 kHz and
1 MHz frequencies.
Measurement range is set for both 1 kHz
and 1 MHz frequencies. If a change in the
measurement frequency conflicts with the
measurement range setting, an acceptable
range is automatically selected.

Agilent Technologies 4288A Specifications

General

Brand	Agilent Technologies
Model	4288A
Category	Measuring Instruments
Language	English