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What is the Input Resistance of the 6487 when Zero Check is enabled?

Question :

What is the Input Resistance of the 6487 when Zero Check is enabled?

Answer :

Product(s) :
Picoammeter: 6487

 


Question : What is the Input Resistance of the 6487 when Zero Check is enabled?


Answer: A model 6517A was used to apply a 1 volt excitation to the 6487. The following values of resistance were measured:

 

RANGE
INPUT RESISTANCE
20mA or 2mA
510 ohms
200uA or 20uA
40 kohm
2uA or 200nA
3.5 Mohm
20nA or 2nA
12 Mohm

 


©Copyright 2003, Keithley Instruments, Inc.


This FAQ Applies to:

Product Series: Keithley Series 6400 Picoammeters

Product:

FAQ ID 71476

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