Keysight (Agilent)
Keysight (Agilent) 4278A
1KHz & 1MHz Capacitance Meter
120 Hz / 1 kHz Frequency Range
Cp-D, Cp-Q, Cp-G, Cp-Rp, Cs-D, Cs-Q, Cs-Rs, Lp-D, Lp-Q, Lp-G, Lp-Rp, Ls-D, Ls-Q, Ls-Rs, R-X, Z-θ, Y-θ Measurement Parameters
5 mV to 1 V rms (programmable) Test Signal Level
Basic accuracy: ±0.1% Measurement Accuracy
Capacitance: 0.00001 pF to 99.9999 mF; Inductance: 0.00001 µH to 99.9999 kH Measurement Range
| Attribute | Value |
|---|---|
| Frequency Range | 120 Hz / 1 kHz |
| Measurement Parameters | Cp-D, Cp-Q, Cp-G, Cp-Rp, Cs-D, Cs-Q, Cs-Rs, Lp-D, Lp-Q, Lp-G, Lp-Rp, Ls-D, Ls-Q, Ls-Rs, R-X, Z-θ, Y-θ |
| Test Signal Level | 5 mV to 1 V rms (programmable) |
| Measurement Accuracy | Basic accuracy: ±0.1% |
| Measurement Range | Capacitance: 0.00001 pF to 99.9999 mF; Inductance: 0.00001 µH to 99.9999 kH |
| Measurement Speed | Fast: 27 ms, Medium: 67 ms, Slow: 267 ms (at 1 kHz) |
| DC Bias | 0 V to 2 V (internal); up to 40 V with external bias source (Keysight 42841A) |
| Interface | GPIB (IEEE-488) |
| Power Requirements | 100/120/220/240 VAC ±10%, 48–66 Hz, 80 VA maximum |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
Keysight Technologies 4278A Options:
- 4278A - W30 - 3-year hardware support
- 4278A - 001 - 1kHz test frequency only
- 4278A - 002 - 1MHz test frequency only
- 4278A - 003 - 1% frequency shift: prevents possible test signal interference when component test contacts are located close to those of other test units
- 4278A - 008 - Delete Manual
- 4278A - 101 - HP-IB compatibility
- 4278A - 201 - Handler Interface
- 4278A - 202 - Handler Interface
- 4278A - 301 - Scanner Interface
| Model | 4278A |
|---|
The Keysight (Agilent) 4278A Capacitance Meter delivers high-speed, precision testing for capacitors up to 200 µF, ideal for production lines and quality control. Operating at 1 kHz or 1 MHz with 0.1 V to 1 V output in 0.1 V steps, it offers swift measurements at 6.5 ms, 10 ms, or 21 ms. It supports C-D, Q, ESR, and G parameters with C-D accuracy reaching 0.07% at 1 kHz and 0.5% at 1 MHz. High-resolution 6-digit display and 10-bin sorting enhance efficiency and accuracy.
The 4278A features a built-in comparator, HP-IB interface, and optional handler support, enabling automated workflows and seamless data analysis for high-volume capacitor testing environments.
Testwall supplies the used Keysight (Agilent) 4278A, fully tested for performance and reliability. We provide expert advice, international shipping, and optional calibration or repair support, delivering dependable instrumentation tailored to your test requirements.
