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Example:
RANGELCK? returns OFF
Returns OFF when the range for dc volts or dc current is not locked (autoranging
enabled).
x
IEEE-488
REFCLOCK
(Reference Clock command) Sets the reference clock source (internal or through the 10
MHz IN BNC connector).
Parameter
INT
EXT
Example:
REFCLOCK INT
Once set, the Calibrator retains the external guard setting until power off or reset.
x
IEEE-488
REFCLOCK?
(Reference Clock query) Returns the reference clock source (internal or through the 10
MHz IN BNC connector).
Response:
(character) INT (Reference clock is internal)
(character) EXT (Reference clock is external)
Example:
REFCLOCK? returns INT
REFCLOCK_D
x
x
IEEE-488
RS-232
(Reference Clock Default command) Sets the power-up and reset default for the
reference clock source (internal or through the 10 MHz IN BNC connector).
Parameters
INT
EXT
The reference clock is set to the default at power on, reset, and when going into an ac
function.
Example:
REFCLOCK_D INT
REFCLOCK_D?
x
x
IEEE-488
RS-232
(Reference Clock Default query) Returns the power-up and reset default for the
reference clock source (internal or through the 10 MHz IN BNC connector).
Responses:
(character) INT (Reference clock is internal)
(character) EXT (Reference clock is external)
Example:
REFCLOCK_D? returns INT
x
IEEE-488
REFOUT?
(Reference Output query) Returns the present value of the reference when editing the
output (error mode). If not editing the output using the INCR command, the return is 0
(0E+00). The reference value is set with the OUT, NEWREF or MULT commands. To
determine which quantity is being edited, use the EDIT? and OUT? commands.
Response:
<reference value>
Example:
REFOUT? returns 0E+00
x
x
RS-232
Sequential
(Sets internal reference clock)
(Sets external reference clock)
x
x
RS-232
x
x
Sequential
(Sets internal reference clock)
(Sets external reference clock)
x
x
Sequential
x
x
RS-232
Sequential
x
Overlapped
x
Sequential
Overlapped
x
Overlapped
Coupled
x
Overlapped
Coupled
x
Overlapped
Remote Commands
Commands
x
Coupled
x
Coupled
x
Coupled
6
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