Guildline 6500A

Guildline 6500A Digital Teraohmmeter is the latest instrument of its type from Guildline Instruments. It expands the range of the earlier models to a level never available before in a high resistance measuring instrument.

The 6500A teraohmmeter offers true state-of-the-art ultra-high resistance measurement superior to bridge techniques. Through its inherently linear design of the measurement section, the 6500A achieves the highest accuracy and range commercially available today. Accuracies better than 0.002% can be achieved when used as a transfer standard.

The 6500A teraohmmeter is fully automatic, functioning under microprocessor control and Guildline’s unique Sofcal on-board calibration firmware. The instrument measures extremely high resistances, up to 1017 ohms, or very small currents down to 10-14 amps. Measurement time for the instrument is 5ms to 1000 seconds and sensing of instrument resistance range, integration time and threshold voltage is fully automatic.

The 6500A utilizes Sofcal to provide access to GPIB status and the RS232C configuration. In addition, Sofcal provides supply
and reference voltage diagnostics, auto reverse tolerance window, protection resistor recompensation, integrator linearity check and standard calibration from the front panel.

6500A Features

• Range 1 megohms to 100,000 teraohms
• Automatic sensing of resistance range integration time threshold voltage
• Fully programmable
• Current Mode – range 10-3 amps to 10-14 amps
• Test voltage 1 to 1000 volts
• SoftcalÔ for on-board intelligence and front panel calibration
• IEEE-488 and RS232C built-in as standard
• Rear input option