A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the KEITHLEY 480 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   KEITHLEY 480   Description / Specification:    
KEITHLEY 480 Picoammeter

The Keithley 480 is an easy-to-use, sensitive picoammeter that resolves 1pA. Simple controls, LED display, shielded BNC input, high normal mode rejection, and excellent overload specifications make it easy to use. The 480 measures DC current from 1pA per digit (2nA full range) to 2mA, with 31/2-digit precision. Seven ranges cover the full span of low-current measurements. The input is simply connected to the circuit under test, the appropriate range selected, and the current is read from the four 0.5 in LED digits with appropriate decimal point and polarity indication. Decade range of 1nA to 1mA, 1 pA to 1 uA resolution, and accuracy of 0.5%. The unit measures DC current from 1pA per digit (2nA full range) to 2mA, DC voltage input 20V to 600V.


Standard Calibration $205.00 *
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*This is a Web introductory price for one calibration of the KEITHLEY 480. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.

Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Carrier Wave (CW)
Carrier Wave or Continuous Wave is a sinusoidal signal without modulation.

A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency, i.e. if the fundamental frequency is f, the harmonics have frequencies 2f, 3f, 4f, . . . etc.

Noise Floor
Noise floor is the measure of the signal created from the sum of all the noise sources and unwanted signals within a measurement system.

Ripple is the small unwanted residual periodic variation of the direct current (dc) output

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