Option 001 (Internal DC Bias)
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HP / Agilent 4285A Precision LCR Meter
The HP / Agilent 4285A precision LCR meter provides a precise, reliable, high-speed solution for component and material measurement. For demanding RF component tests, the 4285A offers a higher test-frequency range, from 75 kHz to 30 MHz. Whether in research and development, production, quality assurance, or incoming inspection, the 4285A will meet all of your LCR meter test and measurement requirements.
Features:
- 6-digits of resolution at any range
- Basic accuracies of 0.1%
- 20 impedance parameters to access and measure
- Constant V or I test signal level
- Instrument setup state storage
- Comparator functions
- Selectable frequency error corrections
- Open, short and load corrections remove parasitics
Specifications
| Test frequency |
75 kHz to 30 MHz with 100 Hz resolution |
| Measurement range |
|Z|, R, X :0.01 m Ω to 99.9999
MΩ
|Y|, G,B :0.01 nS to 99.9999 S
C :0.01 fF to 999.999 µF
L :0.001 nH to 99.9999 H
D :0.000001 to 9.99999
Q :0.01 to 99999.9
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| Basic accuracy |
|Z|, C and L:0.1% D:0.001 |
| Test signal level range |
| Voltage: |
5 mVrms to 2 Vrms |
| Current : |
200
µArms to 20 mArms |
| Constant test signal level range |
| Voltage: |
10
mVrms to 1 Vrms |
| Current: |
100
µArms to 20 mArms |
| Measurement time |
30 ms/65 ms/200 ms |
| 4285A with Option 4285A-001* |
| Internal DC bias |
±(1 mV ~ 40 V), ≤ 100 mA, 0.1% accuracy |
| 4285A with Option 4285A-002, 42841A, and 42842C* |
| DC current bias |
0.01 A to 10 A |
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