Agilent Technologies B1500A Training Manual page 82

ZERO CHECK - No cable
Using Default SMU Setup
+/- 3 fA variation typical, using 16 PLC integration time
With slight modification of the default SMU settings of Classic Test I/V Sweep, you can check the
conditions of your measurement system. This is a typical plot when no cable is attached to the SMU
port. You would typically expect no more than a few fAs of deviation from zero using 16 PLC
integration time.
Cursor at the maximum point 3.17 fA
Marker at the minimum point -1.84 fA
6-10
Module 6
Low Current Measurement