Filter
Top Products
14
Duty Cycle
The Duty Cycle mode is similar to Continuous mode in that a continuous stream of pulses is
output. The exception is the outputs are only active for a set number of seconds (DC:On
menu), then disabled for another set time period (DC:Off menu) before being re-enabled. This
cycle is repeated for a set number of times (CYCLES menu), after which all outputs cease.
Setting the number of cycles to zero results in continuous cycling, until the Stop Key is
pressed.
The Ext/Gate input may be used as a gate or interlock by setting the GATE menu to Low or
High. Pulses will then only be generated while the external trigger input is active. Selecting
Low will make the gate active low, while selecting High will make the gate active high.
The Run key must be pressed to start the Duty Cycle mode.
Burst
Burst mode is similar to Continuous, except only a certain number of pulses will be output
(#/BURST menu), after which outputs are disabled.
The Ext/Gate input may be used as a gate or interlock by setting the GATE menu to Low or
High. Pulses will then only be generated while the external trigger input is active. Selecting
Low will make the gate active low, while selecting High will make the gate active high.
The Run key must be pressed to start Burst mode.
GATE - Gate Select
When not in External Trigger mode, the Ext/Gate input on the 9412/9412A can be used as a
gate signal. When the gate is enabled, pulses will only be output while the signal into the
Ext/Gate input is active -- thus, this signal will act as a safety interlock or external control sig-
nal.
The Ext/Gate input may be used as a gate or interlock by setting the GATE menu to Low or
High. Pulses will then only be generated while the external trigger input is active. Selecting
Low will make the gate active low, while selecting High will make the gate active high. Set-
ting the GATE menu to Off will disable the Gate function.
The setting of the GATE menu is used to determine when the signal is active. If the gate
menu is set (active) High, pulses will only be generated if the Ext/Gate input signal is greater
than 3.5 Volts. If set to (active) Low, outputs will be enabled as long as the Ext/Gate input
signal is less than 2.0 Volts.