Agilent/Keysight 85901A

The Agilent/Keysight 85901A is a portable AC power inverter that delivers 200 Watts continuous output for field and mobile test applications. It supplies selectable 115 Vrms or 230 Vrms at 60 Hz ±0.1% (crystal referenced), with rectangular waveform output specified at 135 or 270 peak ±5%. The unit integrates a sealed lead acid battery (12 Vdc, 17 Ah nominal) providing up to 2 hours of operation at 100-watt continuous load, or operates from an external 12 Vdc source for extended runtime.

A built-in charger accepts 90 to 250 Vac input (auto-selected) and fully recharges the battery in six hours or less. Complete electrical protection includes over-voltage, short-circuit, and over-load safeguards on the inverter output.

Technical Specifications

• Output Power: 200 W continuous


• Output Voltage: 115 Vrms or 230 Vrms (selectable)


• Output Waveform: Rectangular, 25% dead zone; 135 or 270 V peak ±5%


• Output Frequency: 60 Hz ±0.1% (crystal referenced)


• External DC Input: 10.8 to 14.5 Vdc (inverter operation)


• Charger Input: 90 to 250 Vac (auto-selected)


• Battery: Sealed lead acid, 12 Vdc, 17 Ah nominal


• Battery Cyclic Life: >200 cycles


• Recharge Time: ≤6 hours from full discharge


• Internal Battery Runtime: Up to 2 hours at 100 W continuous load


• Battery Shelf Life: 18 months at <20 °C; 12 months at 20–30 °C; 6 months at 30–40 °C


• Charger Power Consumption: 122 VA maximum


• Operating Temperature: 0° to 55° C


• Storage Temperature (with battery): -20° to 40° C


• Storage Temperature (without battery): -40° to 70° C


• EMI Conformance: VDE0871 level B (conducted and radiated)

Key Features

• Over-voltage, short-circuit, and over-load protection


• Dual-mode operation: internal battery or external 12 Vdc source


• Portable form factor with integrated carrying handle and adjustable tilt-stand


• Dimensions: 337 mm (W) × 125 mm (H) × 461 mm (D)


• Weight: 14.2 kg with battery; 8.0 kg without battery

Typical Applications Spectrum analyzers (8590A, 8590E Series, 8592A, 8562A), oscilloscopes, voltmeters, and data acquisition test sets.

Compatibility & Integration External 12 Vdc battery connection terminals for extended field operation independent of internal battery status.