1-10 Model 2790 SourceMeter
®
Switch System User’s Manual
With the high ohms math function (SxVohms) selected, the R
HIPOT
reading can be read
directly from the display of the Model 2790.
Before measuring R
HIPOT
, there are a couple of preliminary verification tests that should
be performed first:
• Contact checks — To properly perform the HIPOT test, contact must be made to
the air bag inflator housing. If good contact is not established, the measured high
resistance will not represent the isolation resistance. Contact is checked by per-
forming continuity checks through the V-source test leads and the connection
points. The resistance reading for a contact should be less than 20 ohms (depending
on cabling).
• V-source readback — Before performing the HIPOT test, the output voltage of the
V-source should be verified. The V-source readback circuit allows you to directly
measure the output voltage using the DMM of the Model 2790.
To Next Page
Loading...
Need help?
General
