Agilent/Keysight 3400B
Agilent / Keysight Laboratory Measurement Instruments. Voltage: 1 mV to 300 V full scale across 12 ranges.
- Model
- Agilent / Keysight 3400B
- Calibration
- Available on request
- Price
- $1,250
- Status
- In stock
- RFQ ref
- 3400B
This unit
The Agilent/Keysight 3400B is a true RMS analog voltmeter engineered for precision AC voltage and decibel measurements across audio and RF frequencies. It delivers accurate RMS readings on sinusoidal and non-sinusoidal waveforms, making it essential for broadband noise characterization, fast-rise pulse analysis, and high-frequency signal assessment. The instrument combines wide dynamic range with frequency-dependent accuracy specifications, enabling reliable measurements in demanding RF and audio test environments.
Technical Specifications
Measurement Ranges & Resolution- Voltage: 1 mV to 300 V full scale across 12 ranges
- Decibel: −72 dBm to +52 dBm (0 dBm = 1 mW into 600 Ω)
- Frequency response: 10 Hz to 20 MHz Measurement Performance
- True RMS response for all waveforms, including non-sinusoidal signals
- Crest factor handling: up to 10:1 at full scale; up to 100:1 at 10% of full scale
- Frequency-dependent accuracy (within 20°C to 30°C): ±5% FS (10–50 Hz), ±1% (50 Hz–1 MHz), ±2% (1–2 MHz), ±3% (2–3 MHz), ±5% (3–10 MHz)
- Response time: < 5 seconds to final value for step function input Input Specifications
- Input impedance: 10 MΩ shunted by < 50 pF (1–300 mV ranges, AC-coupled); 10 MΩ shunted by < 20 pF (1–300 V ranges, AC-coupled)
- Maximum continuous input: 30 dB above full scale or 800 Vpeak, whichever is less, per range
- Maximum DC input: 600 Vdc on all ranges; tolerates 500 Vac peak at 1 kHz Output
- DC output: 0 to 1 V linear, proportional to meter deflection; drives auxiliary equipment or functions as RMS ac-to-dc converter
Key Features
- AC-coupled input design minimizes DC offset sensitivity
- AC-coupled architecture across all voltage ranges
- Bench or rack-mount configuration options available
Typical Applications
- Audio frequency signal measurement and verification
- RF broadband noise floor assessment
- Fast-rising pulse characterization
- Decibel-based power and level measurements
Compatibility & Integration Direct form, fit, and function replacement for the HP 3400A voltmeter.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 10 Hz to 500 kHz | Voltage / Current Range: AC Voltage: 10 mV to 300 V |
| AC Current | 1 mA to 3 A |
Agilent / Keysight 3400B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 3400B. Calibration covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Agilent / Keysight 3400B faults: blown input fuse, worn input jacks, display segment failure, relay contact wear on bench DMMs. Common faults include worn input jacks (banana socket contact wear on the mA and COM terminals), blown input fuses (especially the 440 mA HRC fuse), and display segment failures. Keithley 2000/2001/2002 bench DMMs commonly develop relay contact wear affecting resistance accuracy after extended service.
Agilent / Keysight 3400B price
This Agilent / Keysight 3400B is listed at $1,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 3400B calibration cost
NIST-traceable calibration for the Agilent / Keysight 3400B is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
