Keithley 6517A

Keithley's 5 1/2 digit Model 6517A Electrometer/High Resistance Meter offers accuracy and sensitivity specifications unmatched by any other meter of this type. It also offers a variety of features that simplify measuring high resistances and the resistivity of insulating materials. With reading rates of up to 125 readings/ second, the Model 6517A is also significantly faster than competitive electrometers, so it offers a quick, easy way to measure low-level currents.

Exceptional Performance Specifications

The half-rack-sized Model 6517A has a special low current input amplifier with an input bias current of <3fA with just 0.75fA p-p (peak-to-peak) noise and <20iV burden voltage on the lowest range. The input impedance for voltage and resistance measurements is 200Tohm for near ideal circuit loading. These specifications ensure the accuracy and sensitivity needed for accurate low current and high impedance voltage, resistance, and charge measurements in areas of research such as physics, optics, nanotechnology, and materials science. A built-in ±/-1kV voltage source with sweep capability simplifies performing leakage, breakdown, and resistance testing, as well as volume (cm) and surface resistivity (ohm/square) measurements on insulating materials.

Wide Measurement Ranges

The Model 6517A offers full autoranging over the full span of ranges on current, resistance, voltage, and charge measurements:

Current measurements from 1fA to 20mA

Voltage measurements from 10iV to 200V

Resistance measurements from 50 ohms to 10 16 ohms

Charge measurements from 10fC to 2iC