Specifications

Operating Manual SEFRAM 4451
M4451 A00
50
4.12.1.11 Pulse Delay
This command is used to set the delay from the trigger signal to the start of the pulse in single
pulse mode. Although there exists a separate command for the double pulse delay, both
commands affect the same delay, and so this command will also determine the time between the
two pulses in the double pulse mode.
COMMAND TYPE: Setting or Query
SETTING
Syntax: [:SOURce]:PULSe:DELay<ws><delay>[units]
Arguments:
Type: NRf
Units: S (seconds), MS (milliseconds), US (microseconds), NS
nanoseconds
Range: 0NS to 9.80000S
Rounding: To current resolution
Examples: :PULS:DELay 25NS
:PULS:DEL 200E-9
QUERY
Syntax: [:SOURce]:PULSe:DELay?
Examples: :PULS:DEL?
Response: NRf
CONSIDERATIONS:
The allowed range of the delay will be determined by the values of the period, width, and
transition times.
4.12.1.12 Pulse Duty Cycle
This command is used to set the duty cycle of the pulse. Once the duty cycle has been set it is
considered to be ON, and then changes in the period will automatically cause changes in the
width, such that the duty cycle is kept constant. The duty cycle is set OFF by either setting the
pulse width, or by the PULSE:HOLD WIDTH command. Querying the duty cycle when it is off
will return the value zero (0).
COMMAND TYPE: Setting or Query
SETTING
Syntax: [:SOURce]:PULSe:DCYCle<ws><duty>[units]
Arguments:
Type: NRf
Units: None
Range: 1% to 99%
Rounding: To 0.1%
Examples: :PULS:DCYC 25
QUERY
Syntax: [:SOURce]:PULSe:DCYCle?
Examples: :PULS:DCYC?
4.12.1.13 Pulse Hold
This command is used to determine whether the width or the duty cycle are to be held constant
when the period is changed. The duty cycle is termed to be ON when changes in the period
cause changes in the width, such that the duty cycle remains constant. This state is achieved by
specifying the DCYCle parameter in the HOLD command. The duty cycle is set OFF by
specifying the WIDTH parameter, and then changes in the period will not affect the width.
When setting the duty cycle OFF, the last value is remembered, which is the value the duty
cycle takes when it is next set ON.
COMMAND TYPE: Setting or Query