Agilent/Keysight 400GL
Agilent / Keysight Laboratory Measurement Instruments. Frequency Range: 20 Hz to 4 MHz, Accuracy: ±0.4 dB (typical).
- Model
- Agilent / Keysight 400GL
- Calibration
- Available on request
- Price
- $3,250
- Status
- In stock
- RFQ ref
- 400GL
This unit
The Agilent/Keysight 400GL is a precision AC voltmeter engineered for signal measurement across the 20 Hz to 4 MHz frequency band. It delivers wide dynamic range dB measurements from -100 dB to +60 dB across eight selectable ranges, with typical accuracy of ±0.4 dB. The instrument accommodates AC signals up to 1200 Vrms and DC inputs to 1000 Vdc, making it suitable for diverse RF and audio frequency applications.
Technical Specifications
- Frequency Range: 20 Hz to 4 MHz
- AC Voltage Measurement: up to 1200 Vrms
- DC Voltage Measurement: up to 1000 Vdc
- dB Measurement Range: -100 dB to +60 dB (8 ranges)
- Input Impedance: 10 MΩ
- Input Capacitance: <30 pF to <15 pF (range dependent)
- Measurement Accuracy: ±0.4 dB (typical)
- Weight: 5.50 lbs
Key Features
- Dual-scale display: linear dB scale (100 divisions, -20 to 0 dB) and logarithmic voltage scale (0 dB = 1 V)
- Eight independent measurement ranges for optimized resolution across the -100 to +60 dB span
- High input impedance (10 MΩ) minimizes circuit loading in high-impedance applications
- Low input capacitance ensures measurement integrity at upper frequency limits
Typical Applications The 400GL serves applications requiring accurate voltage measurement in the audio and RF domains, including network analysis, signal tracing, and broadband frequency response characterization where dB-referenced measurements simplify gain and loss calculations.
Compatibility & Integration No software or system integration specifications are documented for this model. The instrument operates as a standalone AC voltmeter. Standard coaxial connectors support industry-wide test setup configurations. This model is discontinued by the manufacturer.
Agilent / Keysight 400GL — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 400GL. 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 400GL 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 400GL price
This Agilent / Keysight 400GL is listed at $3,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 400GL calibration cost
NIST-traceable calibration for the Agilent / Keysight 400GL 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 →
