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HP / Agilent 4285A Precision LCR Meter
By employing the HP / Agilent precision LCR
meter family, a wide frequency range is covered 75 kHz to 30 MHz) and
various test signal levels can be set (2 Vrms/20 mArms for 4285A). In
addition, the ALC function allows measurements of constant-voltage and
constant-current signals, and the added capability of Option 4285A-001*
enables up to ±40 V of dc bias to be applied to the DUT. As a result of
these features, a variety of measurement conditions can be carried out.
Furthermore, the HP / Agilent 4285A
achieves high accuracy measurements (basic |Z| measurement accuracy:
0.1%), permitting the characteristics of inductors and capacitors to be
evaluated with excellent reliability. Also, built-in compensation
functions reduce the influence of test fixtures to a minimum, further
raising the reliability.
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
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Selectable frequency error corrections
-
Open, short and load corrections remove
parasitics
| Key
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 |
| 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 |
| HP
/ Agilent 4285A with Option 4285A-001* |
| Internal
DC bias |
±
(1 mV ~ 40 V), ≤ 100 mA, 0.1% accuracy |
| HP
/ Agilent 4285A with Option 4285A-002, 42841A, and 42842C* |
| DC
current bias |
0.01
A to 10 A |
*Please consult your sales
representative for available options |
