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The Agilent 4284A Precision LCR Meter is a benchtop impedance measurement instrument covering a test frequency range from 20 Hz to 1 MHz across 8,610 selectable frequencies with ±0.01% frequency accuracy. The instrument uses a four-terminal pair measurement configuration and presents results across the parameter set |Z|, |Y|, L, C, R, G, D, Q, Rs, Rp, X, B, and phase angle θ, with parallel and series equivalent circuit models user-selectable.
Per the published specifications, the 4284A supports component characterization and incoming inspection workflows that require precise L, C, and R measurements across frequency. The included list sweep function allows up to 10 programmable frequency or test signal level points to be executed in single or sequential test, and the built-in comparator provides ten-bin sorting on the primary measurement parameter with IN/OUT decision output on the secondary parameter — supporting component sorting applications referenced in the datasheet's comparator function description.
ValueTronics International stocks, tests, and ships the Agilent 4284A from our 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Unlike drop-ship resellers who never physically handle the instruments they sell, our technicians inspect every 4284A in-house against the manufacturer's published performance criteria before it reaches a customer's bench — which means the LCR meter you order is a unit whose condition has been verified by people you can call.
The 4284A was originally introduced under the Hewlett-Packard brand. HP's test and measurement business was spun off as Agilent Technologies in 1999, and Agilent's electronic measurement division subsequently became Keysight Technologies in 2014. Datasheets, calibration support, and the product line for this instrument trace through that lineage.
| Specification | Value |
|---|---|
| Measurement Functions | |
| Measurement parameters | |Z|, |Y|, L, C, R, G, D, Q, Rs, Rp, X, B, θ |
| Mathematical functions | Deviation and percent of deviation from a programmable reference value |
| Equivalent measurement circuit | Parallel and series |
| Ranging | Auto and manual (hold/up/down) |
| Trigger | Internal, external, BUS (GPIB), and manual |
| Delay time | 0 to 60.000 s in 1 ms steps |
| Measurement terminals | Four-terminal pair |
| Test cable length (Standard) | 0 m and 1 m selectable |
| Test cable length (Option 4284A-006) | 0 m, 1 m, 2 m, and 4 m selectable |
| Integration time | Short, medium, and long |
| Averaging | 1 to 256, programmable |
| Test Signal | |
| Frequency | 20 Hz to 1 MHz, 8610 selectable frequencies |
| Frequency accuracy | ±0.01% |
| Signal modes | Normal (non-constant) and Constant |
| Voltage (Non-constant) | 5 mVrms to 2 Vrms, ±(10% + 1 mVrms) |
| Voltage (Constant) | 10 mVrms to 1 Vrms, ±(6% + 1 mVrms) |
| Current (Non-constant) | 50 µArms to 20 mArms, ±(10% + 10 µArms) |
| Current (Constant) | 100 µArms to 10 mArms, ±(6% + 10 µArms) |
| Output impedance | 100 Ω, ±3% |
| Display Range | |
| |Z|, R, X | 0.01 mΩ to 99.9999 MΩ |
| |Y|, G, B | 0.01 nS to 99.9999 S |
| C | 0.01 fF to 9.99999 F |
| L | 0.01 nH to 99.9999 kH |
| D | 0.000001 to 9.99999 |
| Q | 0.01 to 99999.9 |
| θ | −180.000° to 180.000° |
| Δ | −999.999% to 999.999% |
| Correction Functions | |
| Zero open | Eliminates measurement errors due to parasitic stray impedances of the test fixture |
| Zero short | Eliminates measurement errors due to parasitic residual impedances of the test fixture |
| Load | Improves measurement accuracy using a working standard (calibrated device) as a reference |
| List Sweep | |
| Programmable points | Maximum of 10 frequencies or test signal levels; single or sequential test |
| Comparator Function | |
| Primary parameter sorting | Ten bin sorting |
| Secondary parameter | IN/OUT decision output |
| Sorting modes | Sequential (unnested bins, absolute limits); Tolerance (nested bins, absolute or percent limits) |
| Bin count | 0 to 999,999 |
| List sweep comparator | HIGH/IN/LOW decision output for each point in the list sweep table |
| DC Bias (Standard) | |
| DC Bias voltage | 0 V, 1.5 V, and 2 V selectable |
| Setting accuracy | ±5% (1.5 V, 2 V) |
| DC Bias output current | 20 mA max. |
| Other Functions | |
| Store/load | Ten instrument control settings (internal non-volatile memory) plus ten additional settings per removable memory card |
| GPIB | Complies with IEEE-488.1 and 488.2; SCPI programming language; ASCII and 64-bit binary format; buffer stores up to 128 measurements |
| Interface functions | SH1, AH1, T5, L4, SR1, RL1, DC1, DT1, C0, E1 |
| Self test | Softkey controllable |
| Power Requirements | |
| Line voltage | 100, 120, 220 Vac ±10%, 240 Vac +5% / −10% |
| Line frequency | 47 to 66 Hz |
| Power consumption | 200 VA max |
| Operating Environment | |
| Temperature | 0 °C to 55 °C |
| Humidity | ≤ 95% R.H. at 40 °C |
| Storage Environment | |
| Temperature | −20 °C to 60 °C |
| Humidity | ≤ 95% RH (at 40 °C) |
| Physical | |
| Dimensions (W × H × D) | 426 × 177 × 498 mm |
| Weight | Approximately 15 kg (33 lb., standard) |
| Display | |
| Type | LCD dot-matrix display |
| Number of display digits | 6 digits, maximum display count 999,999 |
| Supplemental Performance Characteristics | |
| Stability (|Z|, |Y|, L, C, R) | < 0.01%/day |
| Stability (D) | < 0.0001/day |
| Settling time (fm ≥ 1 kHz) | < 70 ms |
| Settling time (100 Hz ≤ fm < 1 kHz) | < 120 ms |
| Settling time (fm < 100 Hz) | < 160 ms |
| Input protection (max capacitor voltage) | Vmax = √(1/C) [V], ≤ 200 V |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Agilent
Condition
Used
Manufacturer
Agilent
Frequency
1 MHz
1
Power amplifier/DC bias
2
Bias current interface
6
2 m/4 m cable length operation
201
HANDLER INTERFACE
202
HANDLER INTERFACE
301
Scanner interface
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