Agilent Technologies 4339B, Operation Manual

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4339B Front P anel
Contact Check K ey
The Contact Check key toggles the contact check function ON and OFF . This function monitors
whether the DUT is properly connected to the test xture or test leads .
When the contact check fails ,
N.C. (No-Contact) will be displayed on the LCD display .
The measurement status of the GPIB output data is set to 2 (No-Contact). Refer to \A ddress
Key " for the GPIB output data.
The /NO CONT A CT pin of the handler interface is asserted. Refer to \Handler Interface " for
the pin assignment of the handler interface .
The measurement is still performed, and the measurement result is outputted to the GPIB
interface and the handler interface .
The decision limit value of the contact is obtained during the OPEN correction. When the
OPEN correction is performed, unconnected capacitance is measured and stored. The 4339B
compares this vale with the DUT's capacitance .
The Cont Chk annunciator( 9 ) is displayed when the contact check function is ON. The default
setting is OFF .
Function Reference 3-15