Keysight M9601A Startup Guide, Edition 2
27
Connecting a DUT
Floating
When the M9601A is shipped from the factory, the Low force terminal is
connected to the frame/chassis terminal by using the short bar. The short bar
must be connected to perform the grounded measurement.
If you want to perform the floating measurement or if you want to connect
another instrument’s ground to the Low force, remove the short bar and leave
the terminals open. Then use the Low force terminal on the HF or HS connector
to connect the other instrument.
CAUTION
For the floating measurement, do not apply voltage over
40 V to the Low force
terminal. Doing so will damage the M9601A.
CAUTION
Do not apply current or voltage to the frame/chassis termial. Doing so will
damage the M9601A.
WARNING
To prevent electrical shock, do not touch any of measurement circuit at any time
while a floating measurement is in progress. Also use accessories that comply
with IEC 61010-031. All terminals and the extended conductors must be isolated
by using insulation caps, sleeves, etc.
Afin d’éviter toute décharge électrique, ne touchez aucune mesure de circuit à
tout moment lorsque la mesure de flotte est en cours. Utiliser également des
accessoires qui sont conformes à la norme IEC 61010-031. Toutes les bornes et
les conducteurs prolongés doivent être isolés en utilisant des bouchons
d'isolation, des manchons, etc.
Guarding
Guarding reduces the leakage current between the instrument and a DUT. This is
important when you perform low current measurements.
The overview of the guard technique for the grounded measurement is shown in
. The guard shield is necessary to prevent the leakage current in the
measurement environment: extension cable, test fixture, shielding box, and so
on. So it is important to use a triaxial cable such as Keysight PX0102A-001 Low