The HP 6111A is a precision DC voltage source designed for laboratory and engineering applications requiring an accurate, stable, and easy-to-use source of DC voltage. As part of the 6111A-6116A precision voltage source family, the 6111A delivers 0-20V output at 0-1A with 0.1% output voltage accuracy, making it well-suited for applications where precise, repeatable voltage settings are required.

Output voltage on the 6111A is adjusted using a five-decade thumbwheel voltage programmer, which provides convenient and precise output voltage adjustment. A single-turn current control allows full-range adjustment of the current-limit point, supporting Constant Voltage / Constant Current Limit (CV/CL) operation. This configuration is suitable for powering precision circuits, calibration setups, and laboratory work where settable voltage accuracy is the primary requirement.

ValueTronics International has specialized in legacy and current-generation Hewlett-Packard test and measurement equipment since 1992. Each instrument that passes through our 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois receives hands-on inspection and functional verification by our technical team — not a drop-shipped catalog listing. For an instrument family like the 6111A precision voltage sources, where HP's manufacturer support has ended, that hands-on verification is the difference between a working precision source ready for bench use and an unknown-condition unit from an unverified marketplace listing.

Brand Heritage

Hewlett-Packard's test and measurement business was spun out as Agilent Technologies in 1999, and Agilent's electronic measurement business was transferred to Keysight Technologies in 2014. The HP 6111A and the broader 6111A-6116A precision voltage source family are HP-era instruments that predate both transitions. Manufacturer support and current-production equivalents now reside within the Keysight catalog where applicable, though the original HP-branded units retain active demand in legacy calibration labs and bench setups built around them.

Compare Other Models in This Series

The 6111A-6116A precision voltage source family consists of six precision DC voltage sources covering a range of output voltages and currents, with two distinct performance tiers. The 6114A and 6115A are the High Performance Precision Source models, offering 0.025% output voltage accuracy and CV/CC (Constant Voltage / Constant Current) operation with automatic dual range, pushbutton voltage controls, and 40 watt output capability. The 6111A, 6112A, 6113A, and 6116A models offer 0.1% output voltage accuracy and CV/CL (Constant Voltage / Constant Current Limit) operation with thumbwheel voltage programmers and 20 watt output capability.

All six models in the family share the same fundamental architecture as precision DC voltage sources designed for applications where accurate, stable, easy-to-use DC voltage is required. They differ in output voltage range, output current capability, accuracy tier, and operating mode (CV/CC versus CV/CL).

Each pre-owned model in the 6111A-6116A family below is its own dedicated product page with condition-matched pricing and availability. Select the page that matches the model number on the instrument you need.

Within the 6111A-6116A family, the 6111A specifically covers the 0-20V output range at 0-1A output current with 0.1% + 1 mV accuracy, CV/CL operation, and the thumbwheel voltage programmer architecture. It is the 20V variant of the 20-watt CV/CL tier in the family.

The six models in the 6111A-6116A family differ primarily by output voltage range, output current, accuracy tier, and operating mode. The 6113A covers 0-10V at 0-2A; the 6111A covers 0-20V at 0-1A; the 6112A covers 0-40V at 0-0.5A; the 6116A covers 0-100V at 0-0.2A — all at 0.1% + 1 mV accuracy with CV/CL operation. The High Performance Precision Source models offer tighter accuracy: the 6114A covers 0-20V at 0-2A and 20-40V at 0-1A with 0.025% + 1 mV accuracy and CV/CC operation; the 6115A covers 0-50V at 0-0.8A, 50-100V at 0-0.4A with 0.025% + 1 mV accuracy and CV/CC operation.

The comparison table that follows lists each model's output ratings, accuracy, resolution, PARD (ripple and noise), source effect, load effect, temperature coefficient, drift, overvoltage protection, and available options as printed on the datasheet — making the within-family selection between the six models straightforward based on the application's voltage range, current requirement, and accuracy tier.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Product Core & Specifications

About this used unit

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.