Gw Instek GPT-9802 Insulation measuring device, GPT-9802 Manual Do Utilizador
Códigos do produto
GPT-9802
GPT-9000 Series User Manual
52
2. Use the UP/DOWN arrow keys to
move to the MAX HOLD setting.
3. Use the scroll wheel to set MAX
HOLD.
MAX HOLD
OFF, ON
4. Press the EDIT/SAVE key to save
and exit the MANU Utility menu.
EDIT/SAVE
Note
The ESC key can be pressed at any time in the
MANU Utility menu to cancel and exit.
MANU Utility menu to cancel and exit.
Setting the Grounding Mode
Background
When GROUND MODE is set to ON, the GPT-
9000 grounds the return terminal to the ground.
This mode is best for DUTs that are grounded
to an earth ground by their chassis, fixtures or
operation environment. This mode measures
the potential of the HIGH VOLTAGE terminal
with respect to earth ground. This means that
any stray capacitance/resistance that leaks to
earth ground will also be measured. This is the
safest testing mode, though potentially not as
accurate.
9000 grounds the return terminal to the ground.
This mode is best for DUTs that are grounded
to an earth ground by their chassis, fixtures or
operation environment. This mode measures
the potential of the HIGH VOLTAGE terminal
with respect to earth ground. This means that
any stray capacitance/resistance that leaks to
earth ground will also be measured. This is the
safest testing mode, though potentially not as
accurate.
When GROUND MODE is set to OFF, the
return terminal is floating with respect to the
earth ground. This mode is for DUTs that are
floating and not directly connected to an earth
ground. This is more accurate than when
GROUND MODE is set to ON as any stray
capacitance/resistance that leaks to the earth
return terminal is floating with respect to the
earth ground. This mode is for DUTs that are
floating and not directly connected to an earth
ground. This is more accurate than when
GROUND MODE is set to ON as any stray
capacitance/resistance that leaks to the earth