The HP/Agilent 6131C is a precision programmable DC voltage source delivering stable, accurate output across dual ranges with fast settling and digital control. It generates bipolar voltages from ±16.384 V to ±100 V with 0.5 A maximum output current and 50 W power capability, making it ideal for automated test systems, calibration labs, and research environments demanding real-time voltage adjustment without ground loops.
Technical Specifications
Output Voltage & Current
• X1 Range: −16.384 V to +16.3835 V DC
• X10 Range: −100 V to +100 V DC
• Maximum output current: 0.5 A
• Power output: 50 W
• Bipolar operation programmable through zero with no polarity switching artifacts
Programming & Settling
• Digital input in binary or BCD format
• Programming time (0.1% settling): 300 µsec (X1 or X10 range)
• Range change settling: 2 msec
• Internal data storage eliminates continuous computer refresh
Accuracy (23°C ±3°C, 115 Vac input, no load, 30 min warm-up)
• X1 Range: 1 mV basic accuracy
• X10 Range: 10 mV basic accuracy
• Line regulation (104–126 Vac): 500 µV (X1), 5 mV (X10)
• Load regulation: 5–10 mV depending on operating mode
• 8-hour stability: Input signal stability ± 500 µV (X1), ± 5 mV (X10)
Noise & Ripple (DC to 50 MHz)
• X1 Range: 2 mV peak-to-peak / 0.5 mV rms
• X10 Range: 7 mV peak-to-peak / 1.5 mV rms
Protection
• Programmable current latch with zero output on trip
• Fixed current limit at 110% of rated output
• Current limiting: 0.25 A at 100 V tapering to 0.5 A at 0 V
– Key Features
• Fully isolated digital inputs eliminate ground-loop coupling
• Analog input for AC signal injection to simulate noise conditions
• HP-IB interface option (J99 & 59301A)
• 16-bit binary interface available (J20 option for HP 12661A I/O card)
• Operating temperature: 0°C to +55°C
• Convection cooling; dimensions: 133.4 × 425.5 × 396.9 mm; net weight: 15 kg
– Compatibility & Integration
Designed for system integration with isolated digital control and optional HP-IB remote operation. Compatible with HP 12661A I/O programmer card via J20 binary interface option.
