HP / Agilent 6115A Voltage Source, 0-50V, 0.8A | 50-100V, 0.4A

The HP/Agilent 6115A is a precision DC voltage source delivering 0–50V at 0–0.8A or 50–100V at 0–0.4A with automatic range crossover. Built for calibration, standards work, and laboratory power supply applications, it combines exceptional output accuracy with low drift and excellent load/line regulation. The instrument features a dual-function voltage/current meter, front-panel overvoltage protection via SCR crowbar, and optional remote programming capability via external voltage, resistance, or HP Multiprogrammer interface.

## Technical Specifications

**Output Ratings**
• 0–50V at 0–0.8A
• 50–100V at 0–0.4A
• Automatic voltage range crossover above 50V when load current exceeds approximately 0.4A

**Accuracy & Stability**
• Output voltage accuracy: 0.025% (250 ppm) plus 1 mV
• Meter accuracy: ±2% full scale (dual-function voltage/current meter)
• Load regulation: 0.01% + 500 µA
• Line regulation: 200 µA rms/1 mA p-p across rated line and load conditions
• Thermal drift: 0.0015% + 200 µV (potentiometer-dependent; potentiometer wiper jump adds up to 10 mV)
• Remote programming drift: 0.001% + 15 µV plus remote device stability

**Electrical Characteristics**
• DC output isolation: Floatable to 300V above ground
• Overvoltage protection: SCR crowbar with front-panel-adjustable trip voltage (0.5V to 10% above rated output; minimum 2% + 0.5V margin)
• Programming coefficient: 2000/V ± 0.01%
• Constant current source operation supported

**Environmental & Physical**
• Operating temperature: 0–55°C
• Storage temperature: −40 to +75°C
• Cooling: Convection (no moving parts)
• Dimensions: 197 mm W × 165 mm H × 337 mm D
• Weight: 17 lbs (7.7 kg) net; 21 lbs (9.5 kg) shipping

## Key Features

• Dual-range output with automatic crossover for flexible test configurations
• SCR crowbar overvoltage protection with user-adjustable trip threshold
• Remote programming via external voltage, resistance, or HP Multiprogrammer
• Constant current source capability
• Single meter with integrated voltage and current measurement (±2% FS)
• Convection-cooled design eliminates maintenance requirements

## Typical Applications

• Precision voltage calibration and working standards
• System reference supplies
• High-performance laboratory power applications
• Parametric testing and component characterization

## Compatibility & Integration

Remote programming interfaces: HP Multiprogrammer, HP-IB Isolated D/A Power Supply Programmer, external voltage or resistance control. Optional ten-turn output current control (Option 008) and three-digit graduated decadial voltage control (Option 013) available.