Agilent/Keysight 400E
Agilent / Keysight Laboratory Measurement Instruments. Frequency Range: 10 Hz to 10 MHz, Power Range (dBm): -72 dBm to +52 dBm, Voltage / Current Range: 1 mV to 300 V.
- Model
- Agilent / Keysight 400E
- Calibration
- Available on request
- Price
- $3,250
- Status
- In stock
- RFQ ref
- 400E
This unit
The Agilent/Keysight 400E is a precision AC voltmeter designed for voltage and decibel measurements across audio through RF frequencies. The instrument features dual scales - linear AC voltage and logarithmic dB - making it suitable for signal analysis, testing, and calibration work where accurate RMS response is required.
Technical Specifications
- Voltage Measurement: 1 mV to 300 V full scale across 12 ranges
- Frequency Range: 10 Hz to 10 MHz
- dB Range: -72 dBm to +52 dBm
- Input Impedance: 10 MΩ on all ranges
- Input Capacitance: Less than 25 pF typical; less than 12 pF on select ranges
- Overload Protection: 500 V RMS AC; 300 V DC maximum
- AC Amplifier Output: 150 mV RMS open circuit at full-scale meter indication
- Meter Calibration: Absolute average value response; calibrated in RMS volts
- Weight: Approximately 10 lbs
Key Features
- Frequency response from 10 Hz to 10 MHz enables measurement across audio, low RF, and VHF applications
- Accuracy of ±1% across 40 Hz to 2 MHz band; ±2% at 20–40 Hz and 2–4 MHz; ±4% at 10–20 Hz and 4–10 MHz
- High input impedance (10 MΩ) minimizes circuit loading during measurement
- Low input capacitance reduces frequency-dependent effects on high-impedance sources
- Dual-scale readout permits direct voltage and dB level assessment without conversion
- AC to DC converter or wideband amplifier operation extends utility beyond standard voltmeter function
Typical Applications
- Audio and subsonic signal measurement
- RF and microwave circuit testing up to 10 MHz
- Signal calibration and verification
- Frequency response analysis requiring RMS-calibrated response
Compatibility & Integration The 400E operates as a standalone instrument. AC amplifier output (150 mV RMS at full scale) permits integration with external recording or analysis equipment.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 10 Hz to 10 MHz | Power Range (dBm): '-72 dBm to +52 dBm | Voltage / Current Range: 1 mV to 300 V |
Agilent / Keysight 400E — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 400E. 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 400E 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 400E price
This Agilent / Keysight 400E is listed at $3,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 400E calibration cost
NIST-traceable calibration for the Agilent / Keysight 400E 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 →
