Keithley Instruments 485 Overview
- Readings can be taken from 3 readings/second to 1 reading/hour in 6 selectable ranges in data store mode
- Large 4Tone digit LCD provides 0.1 pA resolution
- Measures from 2 nA to 2 mA full scale with a 1 year accuracy of ±(0.4% + 4 counts) on the 2 nA range (worst case)
- Manual or autoranging
- Polarity/range/status/
- Overrange indications
- Analog output (+1 V = -10000 counts, except +100 mV on 2 nA range)
The input can withstand overloads as high as 1000V (with 100k? limiting resistor) for flexibility in a wide range of applications in test, research, and student labs.
An analog output linearly converts the incoming current to voltage for hard copy output or control loop applications.
