When something really outstanding comes along, it's going to gain a lot of attention. That's been the case of the 2701C since we originally introduced it back in 1979. We're flattered that other instrument manufactures have tried to imitate our innovative features and design technologies. But, while others have been busy trying to imitate the 2701C, we've been busy improving it. Dozens of design enhancements and three models later, we're proud to introduce the 2701C with standard features like:

• "Cover-on" Automatic Calibration
• 100% Overrange
• Automatic Bi-polar Output
• Built-in Kilovolt Amplifier
• One Touch Local and Remote Sensing
• 200mV Full Scale Divided Output Range
• All Outputs available through Two Terminals
• Basic Accuracy Specified ± 5°C from Cal Temp
• 25mA Current Sourcing All Active Range
• Micro-processor Enhanced Reliability
• 5 Voltage Ranges (200mV through 1200V)
• Front and Rear Terminals
• Illuminated High Voltage Warning
• 0.5 PPM Resolution

Innovation in Attenuation

The digital attenuator is the design key to long term stability, reliability and interfaceability. Because the crystal controlled attenuator is digital, it can't drift like the conventional Kelvin Varley divider approach. Also, the switch contact resistance no longer becomes a maintenance headache as it is removed from the accuracy determining circuit.

For applications such as analog to digital converter testing, where low noise output is extremely desirable, option "LNF" provides this enhancement to the Valhalla 2701C. Deleting the kilovolt amplifier provides a major improvement in low noise performance. Additionally, by substituting a toroidal transformer stage with 40VDC maximum output, a significant noise reduction is attained while maintaining a low level safe output.

0.1 Micro Volt to 1.2KV Direct Output-Standard

The 2701C have a built-in kilovolt amplifier that delivers up to 1200.000 volts with a full 25mA drive current capability. The 2701C is also short-circuit damage proof on all ranges, and features a 200mV divided output range with 100 nanovolts resolution.

Designed from the ground up for systems interfaceability, the 2701C offers unmatched user convenience for system installation. To start with, all output stimuli are available from two terminals on the front and rear panels, so once you've plugged in there's no fumbling around to get to separate divider or high voltage connector. Also, if remote sensing is required a touch of a button engages the 4-wire output mode. The optional microprocessor controlled IEE-488 talk/listen interface, "TL-3", is extremely user-friendly, and provides a six-channel relay driver port for remote range selection on the 2500EP AC-DC Current Calibrator.