To configure the line frequency from the front panel:
1. Press the
MENU
key.
2. Turn the navigation wheel to select
LINE-FREQ
.
3. Press the
ENTER
key.
4. Turn the navigation wheel to select the appropriate
frequency.
5. Press the
ENTER
key.
6. Press the
EXIT (LOCAL)
key to return to the default
display screen.
How do I adapt triaxial connections to coaxial connection
for high-voltage applications?
Use the optional cable assembly (Keithley Instruments part
number SHV-CA-553) that converts a high-voltage triaxial
connector to a safe high-voltage (SHV) connector.
What should I do if I get an 802 interlock error?
You receive error code 802, “Output blocked by interlock,” if:
• You disable the interlock when the 2657A output is
already on
• You attempt to turn on or enable the 2657A output when
the interlock is disabled
To recover from this error, properly enable the interlock using
a safe test fixture, and then turn on the 2657A output. See
“Wiring the interlock” on page 9 for additional information
on the interlock.
Where can I find updated drivers or firmware?
For the latest drivers and additional support information, see
the Keithley Instruments support website.
To find drivers that are available for your instrument:
1. Go to
.
2. Enter
2657A
and select
Go
.
3. Select
Software
.
Next steps
For more information, refer to the Keithley Instruments
, for support and additional
information about the instrument, including the
Model 2657A
Reference Manual
, which provides detailed information
about all features of the instrument, including descriptions of
TSP commands.
