Newtons4th PSM3750 NumetriQ, Startup Manual, Page: 64 / 104

PSM3750 Quick User Guide
Page 62
Compensation:
Any cables or fixtures used to interface the DUT to the IAI2 will introduce
measurement errors because of the stray impedances. At low frequencies the
stray effects can usually be ignored except when measuring at the extremes of
the impedance range or when exceptionally high accuracy is needed. At higher
frequencies it is almost always necessary to compensate for stray effects unless
using the HF component fixture connected to the front of the IAI2.
There are 2 forms of compensation:
1. Short Circuit – For measuring Low Impedances
2. Open Circuit – For measuring High Impedances
It is only necessary to perform one of the two forms of compensation but both
can be performed. For best results, if more than one test is to be performed they
should be performed in the sequence given above.
Compensation Connections
OPEN CIRCUIT CONNECTION