The Agilent / Keysight 4285A is a high-precision LCR meter designed for demanding component and material measurements in the RF range. It offers a test frequency range from 75 kHz to 30 MHz with a basic accuracy of 0.1%, making it suitable for research and development, production, quality assurance, and incoming inspection.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB |
| Display | LCD dot-matrix display |
| Warm-Up Time | 30 minutes |
| Setup Memory | 10 instrument states in internal EEPROM (expandable via memory card) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 V ±10%, 47 - 66 Hz |
| Operating Temperature | 0 to 55 |
| Dimensions (W×H×D) | 426 × 177 × 498 mm |
Measurement Functions
| Parameter | Value |
|---|---|
| Measurement Parameters | |Z|, |Y|, L, C, R, G, D, Q, Rs (ESR), Rp, X, B, θ |
| Equivalent Circuit Modes | Series, Parallel |
| Deviation Measurement | Δ (Absolute Deviation), Δ% (Percent Deviation) |
Test Signal Characteristics
| Parameter | Value |
|---|---|
| Test Frequency Range | 75 kHz to 30 MHz |
| Frequency Resolution | 100 Hz steps |
| Test Signal Voltage Range (Vrms) | 5 mVrms to 2 Vrms |
| Test Signal Control | Constant V or Constant I |
Measurement Accuracy & Performance
| Parameter | Value |
|---|---|
| Basic Impedance Accuracy | 0.1% |
| Measurement Time (Fast) | 30 ms |
| Measurement Time (Medium) | 65 ms |
| Measurement Time (Slow) | 200 ms |
| Averaging Factor | 1 to 256 |
| Error Correction | Open, Short, Load |
Trigger & Measurement Control
| Parameter | Value |
|---|---|
| Measurement Terminal Configuration | 4-Terminal Pair (BNC) |
| Trigger Sources | Internal, External, Manual, Bus (GPIB) |
| List Sweep Function | 10 points (Frequency, Test Signal Level, or DC Bias) |
| Comparator Functions (Bin Sorting) | 10 bins |
Options & Accessories
| Parameter | Value |
|---|---|
| Internal DC Bias | Up to ±40 V (with Option 001) |
| High Current DC Bias | Up to 10 Adc (requires Agilent 42841A) |
| Handler Interface | Available (Option 201) |
| Scanner Interface | Available (Option 301) |
Measurement Ranges
| Parameter | Value |
|---|---|
| Display Range (Z, R, X) | 0.01 mΩ to 99.9999 MΩ |
| Display Range (Y, G, B) | 0.01 nS to 99.9999 S |
| Display Range (C) | 0.01 fF to 999.999 μF |
| Display Range (L) | 0.001 nH to 99.9999 H |
| Display Range (D) | 0.000001 to 9.99999 |
| Display Range (Q) | 0.01 to 99999.9 |
| Display Range (θ) | -180.000° to +180.000° |
Power
| Parameter | Value |
|---|---|
| Power Consumption | 200 VA max |
Test Signal
| Parameter | Value |
|---|---|
| Test Frequency Accuracy | ±0.01% |
| Test Signal Voltage Resolution | 1 mVrms |
| Automatic Level Control (ALC) | Constant Voltage (CV) and Constant Current (CC) modes |
Technology
LCR Meter
Applications
RF component testing, material measurement, research and development, quality assurance, production testing
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