What are the negative fluctuations that we expect with preferably the 34410A (or the 34401A) when we are in an open circuit or when a device is turned off for DC&AC Voltage&Current measurements?
I want to avoid the -0 issues with automated measurements, however I need to have a valid reason to put a negative value as a low limit.
|DC Voltage||100mV||0.0050+0.0035||0.000035*0.1mV||3.5 uV|
|DC Current||100uA||0.05+0.025||0.00025*100uA||0.025 uA??|
|AC Current||100uArms||0.1+0.04||0.04*100uA||0.04 uA??|
If I consider full range for reading:
|DC Voltage||100mV||0.0050+0.0035||0.000085*0.1mV||8.5 uV|
|DC Current||100uA||0.05+0.025||0.00075*100uA||0.075 uA|
|AC Current||100uArms||0.1+0.04||0.14*100uA||0.14 uA|
Can anyone confirm or correct? Especially for AC since the specs are for at least 0.3% of range and a frequency over 3Hz.